Next Article in Journal
Sleep Parameters and Quality of Life in Children with Monosymptomatic Nocturnal Enuresis: Association, Prediction and Moderation Analysis
Previous Article in Journal
Life Course Exposure to Cyanobacteria and Amyotrophic Lateral Sclerosis Survival
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Toothbrushing Frequency in Saudi Arabia: Associations with Sociodemographics, Oral Health Access, General Health, and Diet

by
Naif Nabel Abogazalah
1,*,
Amani Alzubaidi
2,
Saleh Ali Alqahtani
1,
Nada Ahmad Alamoudi
1 and
Esperanza Angeles Martinez-Mier
3
1
Department of Restorative Dental Sciences, King Faisal University College of Dentistry, Hufof 36362, Saudi Arabia
2
Department of Maxillofacial Dental Surgery, King Khalid University College of Dentistry, Abha 61421, Saudi Arabia
3
Department of Dental Public Health and Dental Informatics, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2025, 22(5), 764; https://doi.org/10.3390/ijerph22050764
Submission received: 31 December 2024 / Revised: 29 April 2025 / Accepted: 30 April 2025 / Published: 13 May 2025

Abstract

:
This study explores the toothbrushing frequency and its association with sociodemographic factors, health status, and dietary habits in Saudi Arabia. Using data from the 2017 National Demographic and Health Survey by the Ministry of Health, we analyzed responses from 44,779 individuals aged five and older. Statistical analysis using SPSS and multinomial regression revealed that 57.3% of the population brushed their teeth less than once a day. Differences were noted across regions, ages, and genders. Key factors associated with increased brushing frequency included age (45–54 vs. older than 60), nationality (Saudi vs. non-Saudi), region (Western vs. Central), and marital status (married vs. non-married). Conversely, individuals with co-morbidities, disabilities, smokers, and those without prior dental treatment were less likely to maintain recommended oral hygiene practices. Our findings suggest that toothbrushing practices fall short of professional recommendations, highlighting a need for enhanced educational efforts. Oral health care providers in Saudi Arabia are encouraged to implement regular awareness programs to improve brushing habits and overall oral hygiene.

1. Introduction

Toothbrushing is a fundamental oral hygiene practice involving the mechanical removal of dental plaque and debris from the teeth and gums using a toothbrush and toothpaste. This routine procedure is crucial not only for maintaining oral health but also for preventing a range of dental diseases, such as dental caries and periodontal disease [1].
Dental caries and periodontal diseases are highly prevalent and remain a major health problem worldwide [2]. The major risk factor for both dental caries and periodontal diseases is the accumulation of dental plaque (biofilm) on tooth surfaces [3]. Dental caries develops when there is an imbalance between protective and pathogenic factors in the dental biofilm, as cariogenic bacteria (within the dental biofilm) consume fermentable carbohydrates to produce acids that cause enamel demineralization. The reversal of this demineralization is influenced by salivary flow and composition, fluoride exposure mainly from toothpaste, and oral hygiene practices [4]. Regarding periodontal diseases, they primarily arise from the accumulation of dental plaque, which harbors pathogenic bacteria, leading to an inflammatory response in the periodontal tissues. When dental plaque is not removed for ten to twenty days, it can lead to the development of gingivitis, which may progress to periodontitis, resulting in bone loss and ultimately tooth loss [5,6,7].
According to recent global estimates, 621 million children had untreated dental caries in primary teeth, while 2.4 billion people have untreated dental caries affecting their permanent teeth [8]. Severe periodontitis is reported to affect approximately 743 million people worldwide [9]. The prevalence of dental caries in Saudi Arabia (SA) has been increasing due to social, economic, and environmental changes that started in the seventh decade of the last century. Recent meta-analysis showed that the average prevalence of dental caries in the primary dentition was 75.43% while in permanent dentition was 67.7% [10]. Regarding periodontal diseases, periodontitis affected 8.6% of high school students in SA, with higher rates among those not regularly brushing their teeth or visiting dental clinics regularly [11].
While professional recommendations advocate brushing twice a day, variations in toothbrushing habits have been observed across different populations globally. A recent systematic review [12] indicated varying toothbrushing frequencies across different global regions. Based on World Health Organization’s classification of world regions, the review found that the Americas and the Western Pacific regions demonstrated strong oral hygiene practices, with 82.9% and 81.4% of their populations, respectively, brushing twice or more daily. Similarly, the South-East Asian Region showed a high prevalence of frequent brushing at 77.1%. In contrast, the Eastern Mediterranean Region, which includes SA, only 41.4% of participants brush their teeth twice or more daily, while a significant 32.1% rarely or never brush (data from SA itself was not included in this review) [12].
In SA, data from El Bcheraoui et al. (2013) [13] revealed that a notable 16.3% of SA’s population have never brushed their teeth, with 71.5% brushing at least once daily. However, the study did not specify the percentage brushing twice or more daily, nor does it explore determinants influencing brushing frequency. This comparison underscores the need for further research in SA to align with global efforts and improve national oral hygiene standards.
This paper aims to explore the toothbrushing frequency and its association with sociodemographic factors, general health, access to oral health care, and diet-related variables at the national level using data from the National Demographic and Health Survey (NDHS) conducted by SA’s Ministry of Health (MOH) in 2017.

2. Materials and Methods

The data source was the National Demographic and Health Survey (NDHS) conducted by SA’s Ministry of Health (MOH) in 2017 (Central IRB log No: 20—204E). The data were available from the office of Directorate of Primary Health Care Centers (MOH headquarters, Riyadh, Saudi Arabia). Details about survey design and sampling procedure have been published previously [14]. Briefly, the MOH used a probability multistage stratified random sampling for the NDHS. Prepared house to house visits were conducted to interview head of a family or an eligible representative and other specific family member between 12 February 2017, to 23 May 2017. Interviews were conducted with 45,287 household heads: 40,955 adult and 15,585 children family members. The participants answered questions related to demographics, education, family income, environmental sanitation, mortality, morbidity, nutrition, tobacco use, oral health, and health services utilization. Eligible datasets were those with complete relevant sociodemographic responses to oral health questions.

2.1. Variables

The dependent variable was daily toothbrushing frequency as less than once, once, and twice or more per day as participants responded to the question, “How many times do you wash your teeth with a brush and toothpaste during the last 30 days?” with a range of options: “I have never cleaned my teeth”, “I clean my teeth some days but not daily”, “Once weekly”, “Many times per week”, “Once daily”, and “Twice or more daily”. Independent variables included the following (Table 1): sociodemographic variables: age group, gender, nationality, geographic region, marital status for household head, completed education level, total monthly income, residence crowding. General health variables: relevant medical conditions, history of physical accident, history of physical disability, smoking, body mass index (BMI), household head health insurance; oral health-related variables: dental health care availability in the last year, dental visits frequency in the past year, reasons for last dental visit, regular source of dental care; diet-related variables: frequency of consuming sweets, frequency of drinking soft drinks.

2.2. Data Analyses

We selected the variables based on availability from the entire NDHS-2017 dataset, and based on a comprehensive review of existing literature, theoretical frameworks, and their relevance to toothbrushing behavior. The data were collected and statistically analyzed using SPSS version 20.0 software. For categorical variables, frequency distributions and relative frequencies were calculated. Cross tabulation was performed to express the categorical variables and Chi-square test was used to perform the bivariable analysis. Multinomial logistic regression analysis was performed to meet our aim of assessing the associations between toothbrushing frequency and independent variables described above among SA residents. Odd ratios and confidence intervals were reported. Analysis was performed with consideration for sample weights to provide estimates representative for SA residents [14].

3. Results

The present study included responses from 44,779 subjects, 54% females, 90% were Saudis from Western (31%), Central (21%), Eastern (20%), Southern (19%), and Northern (9%) regions, out of which 25,954 reported brushing less than once daily; 11,788 subjects brushed their teeth once daily, and 7037 brushed twice or more than twice a day (Table 1).
The bivariable analysis results can be found in Table 1. For respondents of ages 5–14 years old, 62.4% brushed their teeth less than once a day. For those 65 years of age or older, 30.9% and 17.7% brushed their teeth once a day or more than twice a day, respectively. Most males (58.6%) brushed less than once a day, whereas a greater number of females brushed either once or twice a day. Those who brushed less than once a day, were mainly from North region, whereas those who brushed once a day mainly resided in the West region, while most of those who brushed twice a day resided in the Central region. Those who were with primary level of education mainly brushes less than once daily (60.3%). It was observed that more respondents with low monthly income brushed less than once a day than those with higher monthly income. Subjects who reported co-morbidities, were mostly brushing less than once a day. Smoking was more prevalent in respondents who either brush less than once or once daily. Those who brushes less than once a day, had health insurance (60.5%) for themselves and for their family members. Most of the respondents who brushed less than once daily (58.2%) had no available dental care when needed in the past year. Interestingly, those who brushed less than once daily, also did not report eating sweets (65.7%) (Table 1).
Multinomial regression results can be found in (Table 2). The age group of 45–54 years old had an increased likelihood of brushing twice or more daily, over 5 times more, than the age group of +65 (OR = 5.444, 95%CI = 1.105–26.826). The odds for toothbrushing once daily vs. less than once daily for males were 39.5% less than for females (OR = 0.605, 95%CI = 0.403–0.907). The Western region of SA showed an increased likelihood of brushing twice or more daily, approximately 9 times more than the Central region (OR = 9.159, 95%CI = 4.110–20.414). Those who were married showed an increased likelihood of brushing twice or more daily—3 times more than the non-married group (OR = 3.620, 95%CI = 1.076–12.175). The likelihood of smokers brushing their teeth twice or more daily was higher than that of nonsmokers (OR = 3.382, 95%CI = 1.192–9.600). The group of people who were not eating sweets at all showed a decreased likelihood of brushing their teeth twice or more daily than people who consume sweets at least once daily by 76.9% (OR = 0.231, 95%CI = 0.081–0.653). The group of people who drank soft drinks many times per week, reported brushing their teeth twice or more daily—approximately 3 times more than the people who drink soft drinks at least once daily (OR = 3.331, 95%CI = 1.131–9.811).

4. Discussion

Oral diseases can be prevented through proper oral hygiene practices such as frequent toothbrushing with fluoridated toothpaste [1]. In this study, we investigated the patterns of toothbrushing frequency among residents of Saudi Arabia (SA) and their association with sociodemographic, general health, and diet-related factors. Our analysis revealed significant variations in toothbrushing habits across different age groups, genders, and regions.
Notably, only 15.8% of the population reported brushing their teeth twice or more daily, aligning with professional dental recommendations [1]. A substantial portion of the population, particularly males and those with lower educational levels, reported brushing their teeth less than once a day. Individuals residing in the Northern region (the least populous and developed), those with lower income, and those without regular access to dental care were more likely to brush less frequently. In contrast, younger adults, females, and those from the Western region (the most populous and more developed) were more likely to brush twice or more daily.
Our study revealed similarities when compared to the earlier work by El Bcheraoui et al. (2013) [13]. They reported that 71.5% of Saudi Arabian individuals aged 15 and above brushed their teeth at least once daily, which is relatively consistent with our finding that a large portion of the population brushes at least once per day. However, our study shows that only 15.8% adhere to the recommended practice of brushing twice or more daily, while it was not reported in El Bcheraoui et al. (2013) [13]. Moreover, both studies agree on the positive impact of higher educational levels on dental clinic visits and routines, suggesting that education remains a pivotal factor in promoting better oral hygiene behaviors. Additionally, gender differences identified in both studies underscore the need for targeted interventions, as males were generally less likely to engage in regular toothbrushing.
The results from our study indicated that toothbrushing frequency in SA is concerning, with 57.3% of participants brushing less than once a day, 26.9% brushing once daily, and only 15.8% brushing twice or more daily, a figure considerably lower than that observed in other countries. The data from the systematic review by Gupta et al. (2024) [12] which investigated toothbrushing frequencies across various global regions revealed significantly higher rates than SA of frequent brushing. For example, in the South-East Asian Region, 77.1% reported brushing twice or more daily, while the Western Pacific Region showed similar results at 81.4%. Even in the Eastern Mediterranean Region, where oral hygiene practices are lower than the other regions, 41.4% of participants still brush twice or more daily compared to only 15.8% in SA. This discrepancy is further highlighted when examining the Gross Domestic Product (GDP)-related findings. Despite SA being classified among the highest GDP countries, where you would expect better oral hygiene practices, the contrast is present. The systematic review [12] also shows that in high GDP countries, like those in the 4th Quintile, 78.6% of population brushes twice or more daily. This is significantly lower than the 15.8% observed in SA. These results suggest that in SA, factors beyond economic status, such as cultural perceptions of oral health or variations in public health initiatives, may heavily influence brushing habits.
Interestingly, behavioral factors such as smoking were associated with increased toothbrushing frequency and people who reported not eating sweets brush their teeth less frequently than those who consume sweets at least once daily, highlighting complex interplays between health behaviors. Studies indicated that smokers are more likely to experience oral health problems, such as halitosis and periodontal diseases, which can motivate them to adopt more rigorous toothbrushing practices as a preventive measure [15,16]. Smokers might brush their teeth more frequently to counteract bad breath and maintain a more socially acceptable image [17,18]. Moreover, the observation that individuals who do not consume sweets tend to brush their teeth less often was unexpected. One reason might be the perception that less sugar intake reduces the need for strict oral hygiene, leading individuals to underestimate the importance of regular brushing. This perception could result in less frequent brushing among those who follow a healthier diet. Additionally, there may be a reporting bias, where individuals who consider their diet healthy might unintentionally underreport their brushing frequency, believing their diet alone is sufficient to maintain oral health. Future research could investigate these factors to better understand the relationship between diet and oral hygiene practices.
Multiple studies have demonstrated a strong inverse relationship between the frequency of toothbrushing and the prevalence of dental caries among adults. A meta-analysis has shown that self-reported infrequent brushers have a significantly higher incidence of dental caries lesions compared to those who brush frequently, with an odds ratio (OR) of 1.50 (95%CI, 1.34 to 1.69) [19]. Another meta-analysis of fourteen studies found that infrequent brushing significantly increases the odds of poor periodontal health (OR 1.41, 95%CI: 1.25–1.58, p < 0.0001). However, a lack of studies on the link between brushing frequency and periodontitis is also noted [20].
When examining our findings, it is important to consider cultural and behavioral factors that may affect toothbrushing habits, such as parental influence and media exposure [21]. Although our study relied on data from the 2017 National Demographic and Health Survey, these specific variables were not available in the dataset. We recognize that factors like parental guidance can significantly shape children’s brushing routines, while media campaigns can influence the general public views and practices related to oral hygiene. Addressing these variables could provide a more comprehensive understanding of oral hygiene behaviors in SA. We suggest that future research should explore these influences to better assess their impact on toothbrushing habits in SA.
The use of the 2017 National Demographic and Health Survey provides valuable insights into toothbrushing habits, but it also comes with significant limitations due to the data’s age. Since 2017, societal changes, particularly those resulting from the COVID-19 pandemic, may have impacted health behaviors, access to dental care, and public awareness of oral health. Therefore, the findings should be interpreted with caution, as toothbrushing patterns may have shifted since then. The current landscape of public health challenges and economic conditions may differ markedly from those present in 2017. Moving forward, we recommend that future studies incorporate more recent data to more accurately reflect the state of oral health behaviors in SA and to account for the evolving nature of health practices. Based on our knowledge, the 2017 survey is the most recent publicly available data.
To reduce discrepancies and inequalities in toothbrushing frequency among different demographic groups in SA, targeted interventions are necessary. For older adults over 65, educational programs that emphasize the importance of toothbrushing and flossing through the Saudi Ministry of Health’s (MOH) home medicine services [22]. Moreover, culturally sensitive campaigns tailored for both Saudi and non-Saudi populations can enhance engagement and awareness about the importance of toothbrushing, particularly in various regions such as Western and Central Saudi Arabia. Drawing from successful examples, such as the implementation of teledentistry in the United States [23], which has improved access and quality of care for vulnerable populations like children and rural patients, the SA’s MOH can adopt similar approaches to improve toothbrushing frequency through the already successfully available virtual clinics at the Saudi MOH [24]. Teledenistry through SA’s MOH virtual clinics services can facilitate remote consultations, triage, and follow-up care, increasing access to oral health services, especially in underserved areas [25]. Furthermore, in the Caribbean Island of Anguilla, the value of forming collaborative partnerships with medical schools to integrate oral health education into medical training, thus creating healthcare professionals proficient promoting oral health, has been encouraged [26]. In SA, educational programs can highlight the importance of oral hygiene for overall health, delivered through local mosques or local clinics with practical tips for overcoming physical limitations, such as using arthritis-friendly or electric toothbrushes. Incorporating oral health education into routine medical appointments at the SA MOH’s Primary Health Centers can reinforce these messages consistently.
While this study provides valuable insights into the toothbrushing habits of SA’s population and their associations with various sociodemographic and health factors, several limitations should be acknowledged. First, this study relies on self-reported data, which may introduce bias due to participants overreporting desirable behaviors, such as frequent toothbrushing, leading to social desirability bias. This limitation could skew our results, making it difficult to accurately assess true brushing behaviors in the population.
Additionally, while we observed significant associations, these relationships should not be interpreted as cause-and-effect. The cross-sectional nature of the study design captures data at a single point in time, making it impossible to determine the directionality of the associations or account for potential changes over time. This limitation implies that observed correlations may not accurately represent underlying causal relationships, highlighting the need for further longitudinal studies to explore these relationships.
Moreover, this study does not consider other oral hygiene practices, such as flossing, which could provide a more comprehensive understanding of oral health behaviors in the SA. We recognize that the limitations could alter our results and interpretations, and thus, we emphasize the importance of addressing these issues in future research.

5. Conclusions

This study reveals significant differences in toothbrushing frequency in Saudi Arabia, with only a small segment of the population meeting recommended oral hygiene practices. Socioeconomic status, gender, and regional differences significantly influence these behaviors. Addressing these disparities through targeted public health interventions can improve oral health outcomes and overall well-being of SA residents.

Author Contributions

Conceptualization, N.N.A. and E.A.M.-M.; methodology, N.N.A. and A.A.; formal analysis, N.N.A. and A.A; writing—original draft preparation, N.N.A., A.A. and E.A.M.-M.; writing—review and editing, N.N.A., A.A., S.A.A., N.A.A. and E.A.M.-M. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

This study was conducted in accordance with the ICH-GCP guidelines and approved by the Institutional Review Board of Central IRB-Ministry of Health of Saudi Arabia (IRB number 20—204E). The National Demographic and Health Survey (NDHS) was conducted by SA’s Ministry of Health (MOH) in 2017 (Central IRB log No: 2019-0131M).

Informed Consent Statement

Not applicable because this project is secondary data analysis and participants cannot be identified.

Data Availability Statement

The data were available from the office of Directorate of Primary Health Care Centers (MOH headquarters, Riyadh, Saudi Arabia).

Acknowledgments

The authors would like to thank the Health Center Affairs General Department at the Ministry of Health in the Kingdom of Saudi Arabia for providing data. We would also like to thank Beverly Musick, Steve Brown, and Katie Lane, Department of Biostatistics. R.M. Fairbanks School of Public Health for their work on primary data processing.

Conflicts of Interest

The authors declare no conflicts of interest.

References

  1. Research Services and Scientific Information; ADA Library & Archives. Toothbrushes. Available online: https://www.ada.org/resources/ada-library/oral-health-topics/toothbrushes/ (accessed on 13 April 2024).
  2. World Health Organization. Global Oral Health Status Report: Towards Universal Health Coverage for Oral Health by 2030; World Health Organization: Geneva, Switzerland, 2022.
  3. Davies, R.M.; Davies, G.M.; Ellwood, R.P. Prevention. Part 4: Toothbrushing: What Advice Should Be given to Patients? Br. Dent. J. 2003, 195, 135–141. [Google Scholar] [CrossRef] [PubMed]
  4. Pitts, N.B.; Zero, D.T.; Marsh, P.D.; Ekstrand, K.; Weintraub, J.A.; Ramos-Gomez, F.; Tagami, J.; Twetman, S.; Tsakos, G.; Ismail, A. Dental Caries. Nat. Rev. Dis. Primers 2017, 3, 17030. [Google Scholar] [CrossRef] [PubMed]
  5. Theilade, E.; Wright, W.H.; Jensen, S.B.; Löe, H. Experimental Gingivitis in Man. II. A Longitudinal Clinical and Bacteriological Investigation. J. Periodontal Res. 1966, 1, 1–13. [Google Scholar] [CrossRef] [PubMed]
  6. Brown, L.J.; Löe, H. Prevalence, Extent, Severity and Progression of Periodontal Disease. Periodontology 2000 1993, 2, 57–71. [Google Scholar] [CrossRef]
  7. Albandar, J.M.; Brunelle, J.A.; Kingman, A. Destructive Periodontal Disease in Adults 30 Years of Age and Older in the United States, 1988–1994. J. Periodontol. 1999, 70, 13–29. [Google Scholar] [CrossRef]
  8. Kassebaum, N.J.; Bernabé, E.; Dahiya, M.; Bhandari, B.; Murray, C.J.L.; Marcenes, W. Global Burden of Untreated Caries: A Systematic Review and Metaregression. J. Dent. Res. 2015, 94, 650–658. [Google Scholar] [CrossRef]
  9. Kassebaum, N.J.; Bernabé, E.; Dahiya, M.; Bhandari, B.; Murray, C.J.L.; Marcenes, W. Global Burden of Severe Periodontitis in 1990–2010: A Systematic Review and Meta-Regression. J. Dent. Res. 2014, 93, 1045–1053. [Google Scholar] [CrossRef]
  10. Qadir Khan, S.; Alzayer, H.A.; Alameer, S.T.; Ajmal Khan, M.; Khan, N.; AlQuorain, H.; Gad, M.M. SEQUEL: Prevalence of Dental Caries in Saudi Arabia: A Systematic Review and Meta-Analysis. Saudi Dent. J. 2024, 36, 963–969. [Google Scholar] [CrossRef]
  11. AlGhamdi, A.; Almarghlani, A.; Alyafi, R.; Ibraheem, W.; Assaggaf, M.; Howait, M.; Alsofi, L.; Banjar, A.; Al-Zahrani, M.; Kayal, R. Prevalence of Periodontitis in High School Children in Saudi Arabia: A National Study. Ann. Saudi Med. 2020, 40, 7–14. [Google Scholar] [CrossRef]
  12. Das Gupta, R.; Kothadia, R.J.; Haider, S.S.; Mazumder, A.; Akhter, F.; Siddika, N.; Apu, E.H. Toothbrushing Frequency among Children and Adolescents in 72 Countries: Findings from the Global School-Based Student Health Survey. Dent. Med. Probl. 2024, 61, 495–505. [Google Scholar] [CrossRef]
  13. El Bcheraoui, C.; Tuffaha, M.; Daoud, F.; Kravitz, H.; AlMazroa, M.A.; Al Saeedi, M.; Memish, Z.A.; Basulaiman, M.; Al Rabeeah, A.A.; Mokdad, A.H. Use of Dental Clinics and Oral Hygiene Practices in the Kingdom of Saudi Arabia, 2013. Int. Dent. J. 2016, 66, 99–104. [Google Scholar] [CrossRef] [PubMed]
  14. Abogazalah, N.; Yiannoutsos, C.; Martinez-Mier, E.-A.; Tantawy, M.; Yepes, J.F. The Saudi Arabian National Demographic and Health Survey, 2017: Study Design and Oral Health-Related Influences. Saudi Dent. J. 2023, 35, 80–89. [Google Scholar] [CrossRef]
  15. Shah, A.; ElHaddad, S. Oral Hygiene Behavior, Smoking, and Perceived Oral Health Problems among University Students. J. Int. Soc. Prev. Community Dent. 2015, 5, 327. [Google Scholar] [CrossRef]
  16. Nociti, F.H.; Casati, M.Z.; Duarte, P.M. Current Perspective of the Impact of Smoking on the Progression and Treatment of Periodontitis. Periodontology 2000 2015, 67, 187–210. [Google Scholar] [CrossRef] [PubMed]
  17. Robbihi, H.I.; Sulaeman, E.S.; Rahardjo, S.S. Path Analysis: The Effect of Smoking on the Risk of Periodontal Disease. Indones. J. Med. 2018, 3, 99–109. [Google Scholar] [CrossRef]
  18. Benn, A.M.L.; Heng, N.C.K.; Thomson, W.M.; Sissons, C.H.; Gellen, L.S.; Gray, A.R.; Broadbent, J.M. Associations of Sex, Oral Hygiene and Smoking with Oral Species in Distinct Habitats at Age 32 Years. Eur. J. Oral Sci. 2022, 130, e12829. [Google Scholar] [CrossRef]
  19. Kumar, S.; Tadakamadla, J.; Johnson, N.W. Effect of Toothbrushing Frequency on Incidence and Increment of Dental Caries. J. Dent. Res. 2016, 95, 1230–1236. [Google Scholar] [CrossRef]
  20. Zimmermann, H.; Zimmermann, N.; Hagenfeld, D.; Veile, A.; Kim, T.; Becher, H. Is Frequency of Tooth Brushing a Risk Factor for Periodontitis? A Systematic Review and Meta-analysis. Community Dent. Oral Epidemiol. 2015, 43, 116–127. [Google Scholar] [CrossRef]
  21. Mueller, M.; Schorle, S.; Vach, K.; Hartmann, A.; Zeeck, A.; Schlueter, N. Relationship between Dental Experiences, Oral Hygiene Education and Self-Reported Oral Hygiene Behaviour. PLoS ONE 2022, 17, e0264306. [Google Scholar] [CrossRef]
  22. Ministry of Health. FAQs on the Elderly. Available online: https://www.moh.gov.sa/en/Support/FAQ/FAQs-Elderly/Pages/default.aspx (accessed on 20 May 2024).
  23. Lampe, A.; Djalilova, S.; Glassman, P.; Phillips, V. Improving Oral Health Using Teledentistry and Virtual Dental Homes: Concepts and Progress. J. Calif. Dent. Assoc. 2023, 51, 2256035. [Google Scholar] [CrossRef]
  24. Ministry of Health. Virtual Clinics. Available online: https://www.moh.gov.sa/en/Ministry/Projects/Pages/Medical-clinics.aspx#:~:text=%E2%80%8BThe%20Virtual%20Clinics%E2%80%8B,non%2Demergency%20cases%2C%20contributing%20to.0-5-2024 (accessed on 20 May 2024).
  25. Gurgel-Juarez, N.; Torres-Pereira, C.; Haddad, A.E.; Sheehy, L.; Finestone, H.; Mallet, K.; Wiseman, M.; Hour, K.; Flowers, H.L. Accuracy and Effectiveness of Teledentistry: A Systematic Review of Systematic Reviews. Evid. Based Dent. 2022, 1–8. [Google Scholar] [CrossRef] [PubMed]
  26. Modha, B. Promoting Access to Dental Care in a Developing Caribbean Nation, Post-Disaster. J. Health Care Poor Underserved 2023, 34, 1136–1148. [Google Scholar] [CrossRef]
Table 1. Brushing frequency and independent variables.
Table 1. Brushing frequency and independent variables.
Variable CategoryIndependent VariableDependent Variable
Less than Once a DayOnce DailyTwice or More Daily* p-Value
Nw%Nw%Nw%
Total 25,95457.311,78826.9703715.8
Age group5–14643462.4255825.3120112.3<0.001
15–24495056.0232127.1149516.9
25–34537755.9268127.4171116.7
35–44429955.0199528.7125216.3
45–54257258.6119424.871816.6
55–64144759.261924.938515.9
65+87551.442030.927517.7
GenderMale13,77658.6555026.3316815.0<0.001
Female14,98155.3692727.7404917.0
NationalitySaudi26,17357.711,15925.7653116.5<0.001
Non-Saudi258456.5131828.868614.8
Geographic RegionsNorth292467.3105924.93647.8<0.001
South600862.5203523.9116113.5
East611063.6260925.7102510.7
West814151.2433130.9278117.9
Central557455.6244325.1188619.3
Marital status of household headMarried926857.1427326.8268416.10.023
Not married96860.541824.527015.0
Completed education levelPrimary school education411160.3169826.785113.0<0.001
Intermediate school education710059.2303725.5189815.3
High school education474855.8232027.8141516.4
Intermediate diploma73049.738630.723919.6
College or higher education250650.5136729.995819.6
Total Monthly Income>22,901 Riyals47552.220631.613816.2<0.001
7700–22,900 Riyals570055.6273426.7178917.7
3801–7699 Riyals328657.3150926.098316.7
3800 Riyals or less403060.2164924.899815.0
Residence crowding1 ≥ person per room207160.284524.652415.1<0.001
1 to 2person per room495057.1217225.6144717.3
2 < person per room387556.1182928.898715.1
Relevant medical conditionsHypertension139668.645420.821910.6<0.001
Diabetes38970.713117.25712.1
Other non-specified335950.0193829.1125020.9
History of physical accidentYes138755.061826.940518.10.003
No26,12157.211,29827.0651115.8
History of physical disabilityYes46257.418723.88818.80.024
No27,63757.012,11627.1704015.9
Smoking statusSmoker176558.979428.142812.9<0.001
Non-smoker21,50856.6996827.1611416.3
BMIUnderweight = <18.5423062.2144724.368113.5<0.001
Normal weight = 18.5–24.9879456.1384827.4236816.5
Overweight = 25–29.9624455.0302127.8192517.1
Obesity = 30 or greater389759.2177826.791114.1
Household head health insuranceYes284060.5126824.572215.0<0.001
No850055.7380227.7233316.6
Dental health care availability in the last yearAvailable692356.6294426.1182617.2<0.001
Not available15,62958.2653826.9366014.9
I don’t know411455.7195427.2109717.1
Dental visits frequency in the past yearOnce732165.1249622.0134412.9<0.001
More than once727263.5262723.9141012.5
Not visited a dentist in the past year915647.3540032.3336820.4
Never visited a dentist287262.990823.946513.2
I do not know or do not remember121748.473132.044919.6
Reasons for last dental visitDental pain12,95464.9425422.5228112.6<0.001
Treatment and follow up246666.490123.639710.1
Routine examination and treatment104153.554926.141820.4
Don’t know130246.187832.353321.6
Other reasons22152.411627.012020.6
Regular source of dental care combinedPrimary healthcare center10,58758.7459026.5262714.80.004
Government hospital174058.073025.247916.8
Privet clinic or hospital319556.8146426.895116.3
Other39858.119125.110316.9
Frequency of consuming sweetsI don’t eat at all487565.7161222.488411.9<0.001
Many times per month16,52560.0657724.8386815.2
Many times per week436245.1254935.3145719.6
At least once per day225039.7160438.291022.2
Frequency of drinking soft drinksI don’t drink at all943053.5445228.5275217.9<0.001
Many times per month13,81062.0524524.5280113.6
Many times per week359952.6181031.2104616.2
At least once per day114647.276029.852023.0
* The analysis was performed using a Chi-square test.
Table 2. Multinomial regression analysis for relation between brushing frequency and independent variables.
Table 2. Multinomial regression analysis for relation between brushing frequency and independent variables.
Independent Variables Once Daily vs. Less than Once DailyTwice or More Daily vs. Less than Once Daily
ORCI* p-ValueORCI* p-Value
Age5–143.7910.639–22.4880.1421.4500.279–7.5340.659
15–249.2481.585–53.9620.0134.3770.898–21.3400.068
25–349.1961.601–52.8330.0134.3400.914–20.6180.065
35–447.9701.384–45.8940.0202.7880.574–13.5380.203
45–547.5101.246–45.2750.0285.4441.105–26.8260.037
55–648.2851.288–53.2880.0262.8870.514–16.2120.228
+65reference
GenderMale0.6050.403–0.9070.0151.1210.660–1.9020.673
Femalereference
NationalitySaudi1.4910.890–2.4980.1292.5781.174–5.6650.018
Non-Saudireference
Geographic RegionsNorth1.4090.608–3.2640.4241.0980.255–4.7320.900
South0.3130.126–0.7800.0130.4350.101–1.8690.263
East1.7240.940–3.1610.0781.2580.479–3.2990.641
West1.7881.007–3.1760.0479.1594.110–20.414<0.001
Centralreference
Marital status for household headMarried0.7920.408–1.5380.4913.6201.076–12.1750.038
Not marriedreference
completed education levelPrimary school education1.7120.807–3.6300.1610.6230.244–1.5920.322
Intermediate school education0.9610.504–1.8350.9050.4450.200–0.9880.047
High school education1.1950.648–2.2050.5690.5450.251–1.1830.125
Intermediate diploma1.8590.749–4.6140.1820.4160.118–1.4590.171
College or higher educationreference
Total Monthly Income>22,901 Riyals0.9830.419–2.3060.9691.0900.356–3.3440.880
7700–22,900 Riyals0.9150.540–1.5510.7410.8660.409–1.8330.707
3801–7699 Riyals0.7900.457–1.3660.3990.8090.377–1.7360.586
3800 Riyals or lessreference
Residence crowding≤1 person per room0.5550.332–0.9270.0241.4090.745–2.6670.291
1–2 person per room0.8050.554–1.1690.2541.4510.885–2.3780.140
>2 person per roomreference
Relevant medical conditionsHypertension0.6260.406–0.9640.0330.6660.363–1.2220.189
Diabetes0.4520.221–0.9210.0290.4350.151–1.2540.123
Other non-specifiedreference
History of physical accidentYes1.1740.567–2.4300.6661.3530.557–3.2870.505
Noreference
History of physical disabilityYes1.2900.669–2.4850.4470.7080.224–2.2370.557
No reference
smoking statusYes3.3841.580–7.2490.0023.3821.192–9.6000.022
Noreference
BMIUnderweight = <18.52.7821.258–6.1530.0120.9630.321–2.8840.946
Normal weight = 18.5–24.91.7711.075–2.9160.0250.9000.476–1.7010.745
Overweight = 25–29.91.5030.934–2.4180.0931.1940.661–2.1540.557
Obesity = 30 or greaterreference
household head health insuranceYes 1.3870.847–2.2730.1941.6820.833–3.3930.147
Noreference
Dental health care availability in the last yearAvailable0.6600.406–1.0740.0941.1760.624–2.2170.615
Not available0.5680.345–0.9340.0260.7720.389–1.5320.459
I don’t knowreference
Dental visits frequency in the past yearOnce0.5550.199–1.5510.2620.3860.111–1.3500.136
More than once0.9790.358–2.6750.9670.5660.166–1.9290.363
Not visited a dentist in the past year0.6450.226–1.8380.4120.2870.077–1.0720.063
Never visited a dentist1.6300.398–6.6840.4971.1810.206–6.7790.852
I don’t know or don’t rememberreference
Reasons for last dental visitDental pain0.5900.175–1.9900.3950.8030.120–5.3560.821
Treatment and follow up0.5450.147–2.0190.3640.3710.044–3.1060.360
Routine examination and treatment0.9630.222–4.1770.9593.7400.459–30.5110.218
Don’t know0.2320.052–1.0280.0541.2260.144–10.4590.852
Otherreference
Regular source of dental carePrimary healthcare center1.3330.522–3.4030.5480.4070.125–1.3280.136
Government hospital1.2020.419–3.4480.7320.6110.170–2.1990.451
Privet clinic or hospital1.3970.538–3.6220.4920.6550.199–2.1570.487
Otherreference
frequency of consuming sweetsI don’t eat at all0.3850.191–0.7760.0080.2310.081–0.6530.006
Many times per month0.3830.209–0.7040.0020.5950.275–1.2880.188
Many times per week0.4080.211–0.7900.0081.3670.616–3.0360.442
At least once per dayreference
frequency of drinking soft drinksI don’t drink at all2.2810.971–5.3540.0581.6720.555–5.0390.361
Many times per month1.8690.813–4.2940.1411.0370.349–3.0800.948
Many times per week2.3911.001–5.7110.0503.3311.131–9.8110.029
At least once per dayreference
* Multinomial logistic regression analysis. Bold values denote statistical significance at the p < 0.05 level.
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

Share and Cite

MDPI and ACS Style

Abogazalah, N.N.; Alzubaidi, A.; Alqahtani, S.A.; Alamoudi, N.A.; Martinez-Mier, E.A. Toothbrushing Frequency in Saudi Arabia: Associations with Sociodemographics, Oral Health Access, General Health, and Diet. Int. J. Environ. Res. Public Health 2025, 22, 764. https://doi.org/10.3390/ijerph22050764

AMA Style

Abogazalah NN, Alzubaidi A, Alqahtani SA, Alamoudi NA, Martinez-Mier EA. Toothbrushing Frequency in Saudi Arabia: Associations with Sociodemographics, Oral Health Access, General Health, and Diet. International Journal of Environmental Research and Public Health. 2025; 22(5):764. https://doi.org/10.3390/ijerph22050764

Chicago/Turabian Style

Abogazalah, Naif Nabel, Amani Alzubaidi, Saleh Ali Alqahtani, Nada Ahmad Alamoudi, and Esperanza Angeles Martinez-Mier. 2025. "Toothbrushing Frequency in Saudi Arabia: Associations with Sociodemographics, Oral Health Access, General Health, and Diet" International Journal of Environmental Research and Public Health 22, no. 5: 764. https://doi.org/10.3390/ijerph22050764

APA Style

Abogazalah, N. N., Alzubaidi, A., Alqahtani, S. A., Alamoudi, N. A., & Martinez-Mier, E. A. (2025). Toothbrushing Frequency in Saudi Arabia: Associations with Sociodemographics, Oral Health Access, General Health, and Diet. International Journal of Environmental Research and Public Health, 22(5), 764. https://doi.org/10.3390/ijerph22050764

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop