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Article

Risk Factors for Tooth Loss in Patients with ≥25 Remaining Teeth Undergoing Mid-Long-Term Maintenance: A Retrospective Study

1
Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University, 3-18-15 Tokushima, Tokushima 770-8504, Japan
2
Kawahara Dental Clinic, 1-128 Muneshige, Mima, Tokushima 771-2104, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Sumio Akifusa
Int. J. Environ. Res. Public Health 2021, 18(13), 7174; https://doi.org/10.3390/ijerph18137174
Received: 8 June 2021 / Revised: 1 July 2021 / Accepted: 2 July 2021 / Published: 5 July 2021
Tooth loss represents a diffused pathologic condition affecting the worldwide population. Risk factors have been identified in both general features (smoking, diabetes, economic status) and local tooth-related factors (caries, periodontitis). In this retrospective study, we examined the data of 366 patients with a large number of remaining teeth (≥25) undergoing maintenance therapy in order to identify specific risk factors for tooth loss. The number of remaining teeth, number of non-vital teeth, and number of occlusal units were investigated for their correlation with tooth loss. The mean follow-up of patients was 9.2 years (range 5 to 14). Statistically significant risk factors for tooth loss were identified as number of remaining teeth at baseline (p = 0.05), number of occlusal units (p = 0.03), and number of non-vital teeth in posterior regions (p < 0.001). Multiple logistic regression showed that the number of occlusal units and number of non-vital teeth in the posterior regions were significantly associated with a greater risk of tooth loss (odds ratio 1.88 and 3.17, respectively). These results confirm that not only the number of remaining teeth, but also their vital or non-vital status and the distribution between the anterior and posterior regions influence the long-term survival. View Full-Text
Keywords: tooth loss; risk factors; occlusal units; non-vital teeth; remaining teeth; posterior load tooth loss; risk factors; occlusal units; non-vital teeth; remaining teeth; posterior load
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MDPI and ACS Style

Kawahara, H.; Inoue, M.; Okura, K.; Oshima, M.; Matsuka, Y. Risk Factors for Tooth Loss in Patients with ≥25 Remaining Teeth Undergoing Mid-Long-Term Maintenance: A Retrospective Study. Int. J. Environ. Res. Public Health 2021, 18, 7174. https://doi.org/10.3390/ijerph18137174

AMA Style

Kawahara H, Inoue M, Okura K, Oshima M, Matsuka Y. Risk Factors for Tooth Loss in Patients with ≥25 Remaining Teeth Undergoing Mid-Long-Term Maintenance: A Retrospective Study. International Journal of Environmental Research and Public Health. 2021; 18(13):7174. https://doi.org/10.3390/ijerph18137174

Chicago/Turabian Style

Kawahara, Hiroo, Miho Inoue, Kazuo Okura, Masamitsu Oshima, and Yoshizo Matsuka. 2021. "Risk Factors for Tooth Loss in Patients with ≥25 Remaining Teeth Undergoing Mid-Long-Term Maintenance: A Retrospective Study" International Journal of Environmental Research and Public Health 18, no. 13: 7174. https://doi.org/10.3390/ijerph18137174

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