Accuracy of artificial intelligence in implant dentistry: A scoping review with systematic evidence mapping.

STATEMENT OF PROBLEM: The use of artificial intelligence (AI) in dentistry has grown. However, the accuracy of clinical applications in implant dentistry is still unclear. PURPOSE: The purpose of this scoping review with systematic evidence mapping was to identify and describe the available evidence on the accuracy and clinical applications of AI in implant dentistry. MATERIAL AND METHODS: An electronic search was performed in 4 databases and nonpeer-reviewed literature for articles published up to November 2023. The eligibility criteria comprised observational and interventional studies correlating AI and implant dentistry. A bibliographic mapping and quality analysis of the included studies was conducted. Additionally, the accuracy rates of each AI model were evaluated. RESULTS: Twenty-six studies met the inclusion criteria. A significant increase in evidence has been observed in recent years. The most commonly found applications of AI in implant dentistry were for the recognition of implant systems followed by surgical implant planning. The performance of AI models was generally high (mean of 88.7%), with marginal bone loss (MBL) prediction models being the most accurate (mean of 93%). Regarding the place of publication, the Asian continent represented the highest number of studies, followed by the European and South American continents. CONCLUSIONS: Evidence involving AI and implant dentistry has grown in the last decade. Although still under development, all AI models evaluated demonstrated high accuracy and clinical applicability. Further studies evaluating the clinical efficacy of AI models in implant dentistry are essential.

Effectiveness for dentin hypersensitivity treatment of non-carious cervical lesions: a meta-analysis.

OBJECTIVE: The aim of this review is to conduct a systematic review and meta-analysis comparing the effectiveness of in-home or in-office treatments for dentin hypersensitivity. MATERIALS AND METHODS: An electronic search without restriction on dates or languages was performed in four electronic databases until March 2017. In addition, hand-searches in regular journals and in the gray literature were also conducted. To develop the search strategy, clinical questions were formulated using the PICOS method. Eligibility criteria included randomized clinical trials (RCTs) that compared the effectiveness of different agents for the treatment of dentin hypersensitivity through chemical occlusion, physical occlusion, nerve desensitization, or photobiomodulation (low-level light therapy). This systematic review was registered in PROSPERO under number CRD42016039394. RESULTS: Twenty-five RCTs (16 parallel; 9 split-mouth), published from 1992 to 2016, were included. The results of the meta-analysis showed that in-office subgroups treated with chemical or physical occlusion of dentin tubules and nerve desensitization had a statistically significant difference from placebo, with P < 0.00001, P < 0.00001, and P = 0.02, respectively. For in-home treatments, the results of the meta-analysis showed that only those subgroups treated with chemical occlusion of dentin tubules and nerve desensitization exhibited a statistically significant difference from placebo, with P < 0.00001 and P = 0.03, respectively. CONCLUSIONS: The results of pairwise meta-analysis suggest that among in-office treatments, dentinal tubule occlusion (whether chemical or physical) and nerve desensitization provide the best outcomes for treatment of dentin hypersensitivity. For in-home treatments, only chemical occlusion of dentin tubules and nerve desensitization showed a greater treatment efficacy than placebo and the difference was statistically significant.

WITHDRAWN: Interrelation of periodontal parameters between asthmatics and nonasthmatics subjects: a systematic review and meta-analysis.

The Publisher regrets that this article is a duplication of an article that has already been published in the Journal of Periodontology, 89 (2018) 440-455, doi:10.1902/jop.2017.170363. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal

Amalgam and resin composite longevity of posterior restorations: A systematic review and meta-analysis.

OBJECTIVES: The aim of the present review was to evaluate by means of a systematic review and meta-analysis the hypothesis of no difference in failure rates between amalgam and composite resin posterior restorations. DATA: Randomized controlled trials, controlled clinical trials and prospective and retrospective cohort studies were included in this review. The eligibility criteria included clinical trials in humans with at least 12 months of follow-up comparing the failures rates between occlusal and occlusoproximal amalgam and composite resin restorations. Clinical questions were formulated and organized according to the PICOS strategy. SOURCE: An electronic search without restriction on the dates or languages was performed in PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, and Web of Science up until March 2015. STUDY SELECTION: The initial search resulted in 938 articles from PubMed/MEDLINE, 89 titles from the Cochrane Central Register of Controlled Trials, and 172 from the Web of Science. After an initial assessment and careful reading, 8 studies published between 1992 and 2013 were included in this review. According to the risk of bias evaluation, all studies were classified as high quality. CONCLUSIONS: The results of this review suggest that composite resin restorations in posterior teeth still have less longevity and a higher number of secondary caries when compared to amalgam restorations. In relation to fractures, there was no statistically significant difference between the two restorative materials regarding the time of follow-up. CLINICAL SIGNIFICANCE: There is currently a worldwide trend towards replacing amalgam restorations with mercury-free materials, which are adhesive and promote aesthetics. It is important to perform an updated periodic review to synthesize the clinical performance of restorations in the long-term.

Influence of C-factor and light-curing mode on gap formation in resin composite restorations.

To investigate the influence of the C-factor (Cf) and light-curing mode (LCM) on gap formation in resin composite (RC) restorations. Cylindrical Class I cavities with a 5.0 mm diameter andthree different depths (1.0, 2.0 and 3.0 mm) were prepared in the occlusal surfaces of 60 human molars and restored with P60 (P) and Supreme (Su). RCs were light-cured in accordance with two modes: Standard (S)--850mW/cm2/20 seconds and Ramp (R)-100 up to 1000mW/cm2/10 seconds +1000mW/cm2/10 seconds. After storage in distilled water, the restorations were cut into three slices and the gap widths were analyzed in a 3D-scanning system. The data were analyzed by ANOVA and Student-Newman-Keul's test (alpha = 0.05). ANOVA detected significant influence for the RC, Cf and LCM independent factors and for the double interactions RC vs Cf and LCM vs Cf. Smaller gap formation was found for cavities restored with Su. R was responsible for the smaller gap formation. The highest gap formation was found for cavities with Cf = 3.4, followed by Cf = 2.6 and 1.8 without statistical differences between them. These findings suggest that Cf played an essential role in gap formation. R LCM may allow RC relaxation during polymerization reaction. Finally, nanocomposites (Su) may lead to less gap formation at the resin-dentin interface.

The influence of C-factor, flexural modulus and viscous flow on gap formation in resin composite restorations.

This study analyzed the influence of C-factor, flexural modulus and viscous flow on gap formation in resin composite restorations. Two resin composites, a mini-filled hybrid (P 60) and a nanofilled (Supreme), were used. The flexural modulus was obtained from bar-shaped specimens submitted to three-point bending. Viscous flow was obtained from the difference between the initial and final diameter of resin composite disks submitted to a load of 10 N for 120 seconds. Gap analysis was conducted in three types of cylindrical cavities (C-factor of 1.8, 2.6 and 3.4) that were prepared on the occlusal surfaces of human molars. The gap width at the dentin-resin composite interface was measured using a 3D scanning system (Talyscan 150). The data were analyzed by ANOVA and Student-Newman-Keuls' test, t-test and linear regression analysis (alpha = 0.05). The cavities with C-factor 3.4 presented the highest Gap formation (p < 0.0001). The lowest Gap formation was found in cavities restored with Supreme resin composite (p < 0.0001). P 60 presented significantly higher flexural modulus and lower viscous flow than Supreme (p < 0.0001). Regression analyses detected a significant influence of flexural modulus and viscous flow on gap formation (p < 0.05).

Analysis of gap formation at tooth-composite resin interface: effect of C-factor and light-curing protocol.

OBJECTIVE: The aim of this study was to evaluate the effect of C-factor and light-curing protocol on gap formation in composite resin restorations. MATERIAL AND METHODS: Cylindrical cavities with 5.0 mm diameter and three different depths (A=1.0, B=2.0 and C=3.0 mm) were prepared on the occlusal surface of 30 human molars and restored in a single increment with P 60. The composite resin was light-cured according to two protocols: standard - 850 mW/cm(2) / 20 s and gradual - 100 up to 1000 mW/cm(2) / 10 s + 1000 mW/cm(2) / 10 s. After storage in distilled water (37 degrees C/7 days), the restorations were cut into three slices in a buccolingual direction and the gap widths were analyzed using a 3D-scanning system. The data were submitted to ANOVA and Student-Newman-Keuls test (alpha=0.05). RESULTS: ANOVA detected a significant influence for the C-factor and light-curing protocol as independent factors, and for the double interaction C-factor vs. light-curing protocol. Cavities with higher C-factor presented the highest gap formation. The gradual light-curing protocol led to smaller gap formation at cavity interfaces. CONCLUSIONS: The findings of this study suggest that the C-factor played an essential role in gap formation. The gradual light-curing protocol may allow relaxation of composite resin restoration during polymerization reaction.