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Objective: To identify the potential factors that induce procedural errors during posterior proximal resin composite restorations placed by dental students. Materials and Methods: This retrospective study evaluated 803 bitewing radiographs of posterior proximal resin composite restorations placed by dental students at Imam Abdulrahman bin Faisal University. Atypical radiographic signs of failure were screened, and different patient-, operator-, and clinical-related factors were recorded. Chi-square test was used to examine the relationship between procedural errors and recorded factors. Stepwise adjusted logistic regression model was performed to identify predictors of procedural errors. Results: The most observed errors were internal gaps at the bonding interface and internal voids. Molars had 0.39 the risk of internal voids (odds ratio [OR] = 0.39; confidence interval [CI] = 0.25-0.60; P = <0.0001), 0.41 the risk of sharp angle (OR = 0.41; CI = 0.24-0.68; P = <0.001), and 0.57 the risk of open contact (OR = 0.57; CI = 0.34-0.97; P = 0.04) compared to premolars. Those who were >40 years of age had 1.79 the risk of overhang compared to younger patients (OR = 1.79; CI = 1.04-3.11; P = <0.04). First molars and premolars had 0.64 the risk of overhang compared to second molars and premolars (OR = 0.64; CI = 0.41-1.00; P = 0.04). Junior students had 1.97 the risk of internal gap compared to their senior counterparts (OR = 1.97; CI = 1.20-3.21; P = 0.008). Mesial restorations had 0.38 the risk of external gap compared to mesio-occluso-distal (MOD) restorations (OR = 0.38; CI = 0.19-0.78; P = 0.003). Restorations with a margin coronal to the cemento-enamel junction (CEJ) had 0.44 the risk of external gap compared to those restorations with a margin apical to the CEJ (OR = 0.44; CI = 0.29-0.66; P = <0.0001). Conclusion: Our findings suggested a higher incidence of procedural errors in restoring premolars and MOD cavity preparations. Therefore, it is crucial to enhance the comprehensiveness of laboratory training and expose students to diverse clinical scenarios and various techniques.
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PURPOSE/OBJECTIVES: Access to dental care for older adults is challenging, especially for those living in rural areas. People living in rural areas are less likely to visit the dentist, have greater oral health needs, and face significant oral health disparities. Given the projected increase in the older adult population, the aim of this study was to conduct a scoping review (SR) to identify the current landscape of geriatric dental training in rural healthcare settings. METHODS: Four guiding concepts (i.e., dental workforce, education/training, rural setting, and older adult population) were searched in PubMed, Embase (Elsevier), Dental and Oral Sciences Source (EBSCO), and ERIC (EBSCO) following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. EndNote and Covidence were used for de-duplication algorithms and title/abstract screening. RESULTS: Seventy-nine citations were identified for the final full-text review based on inclusion and exclusion criteria, and ten articles were eligible for data extraction as applicable to the research question. Three themes emerged from the review: geriatric dentistry inclusion within dental school curricula, clinical training at rural/remote locations, and improving geriatric oral health knowledge through interprofessional training. CONCLUSION: This SR highlights the limited number of currently trained geriatric dentists, as well as, the paucity of dental programs/curricula offered to produce competent dental geriatricians with an advanced skill set for practicing in rural settings. Our review indicates the need to expand the dental workforce, curricula, and training to better position dentists to serve the older and underserved population in rural and remote areas.