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State-of-the-Art Dentistry and Oral Health

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A topical collection in Applied Sciences (ISSN 2076-3417). This collection belongs to the section "Applied Dentistry and Oral Sciences".

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Prof. Dr. Joseph Nissan

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Collection Editor

Department of Oral Rehabilitation, Tel Aviv University, Tel Aviv 6997801, Israel
Interests: fixed prosthodontics; implant dentistry; aesthetic dentistry
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Prof. Shlomo Matalon

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Collection Editor

School of Dental Medicine, Tel Aviv University, Ramat Aviv, P.o. Box 6139001, Israel
Interests: oral microbiology; restorative dentistry

Prof. Dr. Gavriel Chaushu

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Departments of Oral & Maxillofacial Surgery, School of Dental Medicine, Tel Aviv University, Tel-Aviv 61000, Israel
Interests: oral surgery; minimally invasive surgery; postoperative morbidity; dental implants; bone substitutes; block graft; bone graft
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Prof. Dr. Carlos E. Nemcovsky

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Department of Periodontology and Dental Implantology, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
Interests: soft and hard tissue reconstruction
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Dr. Eyal Rosen

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Collection Editor

School of Dental Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
Interests: biofilm; bacterial resistance; persistent infection; bacterial colonization
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Topical Collection Information

Dear Colleagues,

Dentistry and oral health developments are continuously ameliorating the level of dental practice. Recent advances in digitalization and computerization are likely to redefine most manufacturing processes and treatment approaches in their effectiveness and attractiveness. Evidence-based data provide us with the necessary information to refine clinical practice in dentistry, oral health, and quality of life. However, a considerable research effort is still required to achieve these methods with unique skills and the ability to cooperate, study, and adjust to continuously evolving conditions and tasks.

The present Special Issue will focus on breakthrough valuable research in dentistry and allied disciplines to provide evidence-based information that will contribute to improve dental treatments and oral health.

Prof. Joseph Nissan
Prof. Shlomo Matalon
Prof. Gabi Chaushu
Prof. Carlos E. Nemcovsky
Dr. Eyal Rosen
Collection Editors

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Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the collection website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

oral rehabilitation and dental implants
periodontics and oral surgery
pedodontics and orthodontics
endodontics and microbiology
oral pathology—medicine and oral biology
dental materials and nanotechnology

Published Papers (6 papers)

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2022

Jump to: 2021

13 pages, 728 KiB

Open AccessSystematic Review

Depth of Bacterial Penetration into Dentinal Tubules after Use of Different Irrigation Solutions: A Systematic Review of In Vitro Studies

by Igor Tsesis, Michal Lokshin, Dan Littner, Tomer Goldberger and Eyal Rosen

Appl. Sci. 2023, 13(1), 496; https://doi.org/10.3390/app13010496 - 30 Dec 2022

Cited by 2 | Viewed by 1661

Abstract

(1) The objective of the study is to conduct a comprehensive systematic review of in vitro studies in order to assess the depth to which E. faecalis bacteria penetrate human dentinal tubules after the use of various irrigation solutions. (2) Methods: A literature search of the MEDLINE, Scopus, Cochrane CENTRAL, and Embase databases was conducted, as well as a backward and forward citation search. Two independent reviewers then selected suitable studies based on inclusion and exclusion criteria. Data were extracted and the risk of bias and methodology of the studies were evaluated. (3) Results: Out of a total of 504 papers evaluated following the removal of duplicates, 7 studies met the inclusion criteria and were included in the systematic review. The heterogeneity of the studies made it impossible to perform a meta-analysis. The majority of the studies reported that sodium hypochlorite (NaOCl) and chlorhexidine digluconate (CHX) can affect the penetration depth of E. faecalis suspensions. The studies included in this review possess a moderate to high risk of bias and thus represent moderate evidence that the antimicrobial activity of NaOCl and CHX affects the intra-tubular penetration of bacteria. (4) Conclusions: The evidence indicates that irrigants may affect the bacteria inside human dentinal tubules. Standardized high-quality methods are needed to evaluate bacterial penetration in in vitro studies. Full article

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11 pages, 6802 KiB

Open AccessArticle

Long-Term Prosthetic Aftercare of Mandibular Implant-Supported Overdenture

by Eran Zenziper, Ofir Rosner, Oded Ghelfan, Joseph Nissan, Sigalit Blumer, Gil Ben-Izhack, Hagay Slutzky, Isabelle Meinster, Liat Chaushu and Sarit Naishlos

Appl. Sci. 2022, 12(17), 8673; https://doi.org/10.3390/app12178673 - 29 Aug 2022

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Abstract

Background: Two of the most popular resilient attachment systems for mandibular implant-supported overdenture (MISOD) are locator and ball attachments. The purpose of the present retrospective cohort study was to assess the long-term prosthetic aftercare and oral hygiene status in edentulous patients rehabilitated with MISOD. Materials and Methods: Forty-five consecutive patients were included (22, group A- ball vs. 23, group B- locator attachments). Attachment incorporation into the MISOD was conducted in a direct (chair-side) intraoral technique at the time of denture insertion. Routine follow-up included yearly visits. The number of visits requiring prosthetic aftercare, either during the follow-up or during the additional visit, was recorded. Outcome parameters included—prosthetic aftercare—the number of aftercare (primary outcome parameter) visits, and dental treatment received (pressure sores relief, liner changes due to loss of retention, loss of retention due to debris accumulation, denture repair—secondary outcome parameters); oral hygiene—gingival index (primary outcome parameter). Results: The mean follow-up of the entire study population was 84 ± 21 months, range 39–120 months. Statistical analysis revealed a lower need for prosthetic aftercare interventions in group A (p < 0.001). The mean number of visits dedicated to pressure sores relief (6.09 ± 1.04 vs. 3.03 ± 0.77, p < 0.001) and liner exchange due to loss of retention (5.6 ± 1.03 vs. 2.09 ± 1.04, p < 0.001), were significantly lower in group A. Debris (food/calculus) accumulation inside the attachment was noted only for the locator’s group (p < 0.001). No statistically significant differences between the groups were noted for denture repair (p = 0.318). Oral hygiene also exhibited statistically significant differences in favor of group A (2.3 ± 0.3 vs. 1.03 ± 0.2, p < 0.001). Conclusions: It can be concluded that using ball attachments for MISOD yields less need for aftercare treatments and improved oral hygiene status over the years. Full article

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8 pages, 2758 KiB

Open AccessArticle

Pre-Disinfection of Poly-Methyl-Methacrylate (PMMA) Reduces Volatile Sulfides Compounds (VSC) Production in Experimental Biofilm In Vitro

by Ofir Rosner, Guy Melamed, Shiri Livne, Uziel Jeffet, Eran Dolev, Gil Ben Izhack, Hadas Heller and Nir Sterer

Appl. Sci. 2022, 12(4), 1947; https://doi.org/10.3390/app12041947 - 13 Feb 2022

Cited by 1 | Viewed by 1554

Abstract

Temporary dental crowns and bridges are commonly made of poly-methylmethacrylate (PMMA), a porous material attracting the microbial biofilm associated with malodor production. The purpose of the present study was to test pre-disinfection of PMMA on malodor-related parameters in an experimental oral biofilm. PMMA discs were pre-soaked in anti-malodor disinfecting solutions and controls: (i) Saline, (ii) essential oils (EO), (iii) herbal extracts (HE), and (iv) chlorhexidine (CHX). Following, discs were subjected to a salivary incubation assay and monitored for malodor-producing bacteria within the biofilm using confocal microscopy (CLSM), malodor production (organoleptic scale 0–5), volatile sulfide levels (Halimeter), and salivary protein degradation (SDS-PAGE). Results showed that disinfection solutions were significantly effective in reducing malodor-related parameters (CHX > HE > EO > Saline). Taken together, these results suggest that pre-disinfection may help to reduce malodor production in PMMA temporary dental restorations. Full article

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2021

Jump to: 2022

7 pages, 884 KiB

Open AccessArticle

The Influence of Three Different Digital Cement Spacers on the Marginal Gap Adaptation of Zirconia-Reinforced Lithium Silicate Crowns Fabricated by CAD-CAM System

by Gil Ben-Izhack, Asaf Shely, Sarit Naishlos, Ari Glikman, Liad Frishman, Avi Meirowitz and Eran Dolev

Appl. Sci. 2021, 11(22), 10709; https://doi.org/10.3390/app112210709 - 12 Nov 2021

Cited by 1 | Viewed by 1809

Abstract

Background: This study compared the influence of three different radial spacers (60,90,120 microns) on the marginal gap adaptation by using computer-aided manufacturing (CAD-CAM) for producing monolithic zirconia reinforced lithium silicate (ZLS) ceramic crowns. Methods: A total of 45 abutment acrylic teeth were divided into three groups of different radial spacers (60, 90, and 120 microns). In each group 15 teeth were scanned by Omnicam intra oral scanner and ZLS crowns were ground. For each unit the marginal gap was evaluated at four regions of interest by scanning electronic microscope (SEM). To compare the marginal gap between the three groups a one-way ANOVA with post-hoc Bonferroni test was preformed (α = 0.05). Results: The marginal gap for a 60 microns (162.99 ± 16.25 µm) radial spacer was found significantly higher than 90 (41.85 ± 3.57 µm) and 120 (41.85 ± 5.3 µm) microns radial spacers (p < 0.05). Between 90- and 120-micron radial spacers no difference was obtained. (p < 0.05). Conclusions: A radial spacer of 60 microns showed a significantly higher marginal gap compared to 90 and 120 microns and was not clinically accepted (>120 microns). For both 90 and 120 microns the marginal gap was clinically accepted (<120 microns) with no difference between the groups. The radial spacer which should be optimum for CELTRA^® DUO crowns is 90 microns. Full article

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11 pages, 843 KiB

Open AccessArticle

New Training Approach for Improving the Spatial Perception and Orientation Ability of Dentistry Students

by Asaf Shely, Gil Ben-Izhack, Diva Lugassy, Shlomo Matalon, Raphael Pilo, Tamar Brosh and Eran Dolev

Appl. Sci. 2021, 11(20), 9387; https://doi.org/10.3390/app11209387 - 9 Oct 2021

Cited by 1 | Viewed by 1921

Abstract

Introduction: During a basic prosthetics course, dental students train on plastic teeth for fixed partial dentures (FPD). The complexity of manual skill acquisition and the need for extra training led us to develop a portable tool for home training (PhantHome). The aim of the current study was to assess whether training using the portable tool improves students fine motor skill, spatial perception, and orientation and may predict success in preclinical prosthetics courses. Material and Methods: A total of 42 third year dental students were included in this study. A valid dexterity test (Grooved Pegboard test) and a manual test using the portable tool (PhantHome) were conducted in direct and indirect visions using a mirror at two time points: T0: beginning of study, and T1: after training for one month with the portable tool at home. The students’ manual grades in the portable tool, Grooved test, and final prosthetics course grades were compared. Results: The results showed that indirect tasks were significantly more difficult to perform than direct tasks for PhantHome and Grooved tests at T0 and T1 (p < 0.0005). After practicing with the portable PhantHome tool (T1), the students’ scores of in PhantHome and Grooved tests improved significantly (p < 0.04). A regression analysis showed that students’ motor tasks scored at T0 predicted phantom course success in 86.8% of cases (p = 0.005). Conclusion: There was a positive transfer in learning: PhantHome training led to improved performance on the Grooved tests without further training on these tests. Therefore, training in the PhantHome tool can significantly improve performance in the prosthodontics phantom course. The prediction model predicted success in a prosthodontics course with 86% accuracy. Full article

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7 pages, 2030 KiB

Open AccessArticle

(In-Vitro Comparison between Closed Versus Open CAD/CAM Systems) Comparison between Closed and Open CAD/CAM Systems by Evaluating the Marginal Fit of Zirconia-Reinforced Lithium Silicate Ceramic Crowns

by Gil Ben-Izhack, Asaf Shely, Omer Koton, Avi Meirowitz, Shifra Levartovsky and Eran Dolev

Appl. Sci. 2021, 11(10), 4534; https://doi.org/10.3390/app11104534 - 16 May 2021

Cited by 4 | Viewed by 2218

Abstract

Background: This study compared the marginal gap (MG) and absolute marginal discrepancy (AMD) of computer-aided design and computer-aided manufacturing (CAD–CAM) used in open systems (OSs) and closed systems (CSs) for producing monolithic zirconia-reinforced lithium silicate (ZLS) ceramic crowns. Methods: 60 ZLS ceramic crowns were cemented to abutment acrylic teeth; thirty crowns were designed and milled by an OS, and thirty by a CS. All crowns were sectioned for evaluating the marginal gap by scanning electronic microscopy (SEM). To compare the marginal gap between CS and OS techniques, data were analyzed using the independent-samples Mann–Whitney U Test (α = 0.05). Results: AMD was found to be significantly better for the closed system (p < 0.05). Mean AMD values for the CS were 148 µm, and for the OS it was 196 µm. MG was found to be significantly better for the OS (p < 0.05). Mean MG values for the CS were 55 µm, and for the OS they were 38 µm. Conclusions: The marginal gap in relation to AMD was significantly better for CS. However, the marginal gap in relation to MG was significantly better for OS. Both techniques showed clinically acceptable MG values (<120 µm). Full article

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2022

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