Clinical survival of No-prep indirect composite laminate veneers: a 7-year prospective case series study

Abstract Background The no preparation technique which is a reversible form of treatment characterized by the absence of tooth tissue preparation and preserves the soft tissue architecture while preserving all natural tooth structures is indicated in cases where the tooth structure allows material to be added. The aim of this study is to evaluate the clinical performance and survival rates of indirect composite laminate veneers with no preparation after 7 years. Materials and methods A total of 80 indirect composite veneers were placed on maxillary anterior teeth in 35 patients (n = 80). Diastema (n = 64), wedge tooth anomalies (n = 9) and re-shaping (n = 7) were the main indications for veneer treatments. All laminate veneers were fabricated with an indirect microhybrid composite material (Gradia, GC Dental). No tooth preparation was performed. Light-cured resin cement (Choice 2, Bisco) was used to lute the veneers. Composite veneers were evaluated using Modified United States Public Health Service criteria. Survival rates of the veneers were calculated using Kaplan-Meier statistics. The data containing the results of the USPHS criteria at baseline, 2 years and 7 years was statistically analyzed using Wilcoxon Signed Rank test at the 0.05 level of significance. Results The overall survival rate was 91.3%. After 7 years, 7 absolute failures including 4 debonding (marginal adaptation, score 4) and 3 fractures (fracture of restoration, score 3) were noted. Color match was scored as 1 (n = 34) and 2 (n = 15). Slightly rough surfaces (41 of 73 laminates) and slight marginal discoloration (15 of 73 laminates) were noted. The overall scores after 84 months were significantly higher than the baseline scores for the marginal adaptation (p = 0.008), color match (p = 0.000), marginal discoloration (p = 0.000), surface roughness (p = 0.000), and fracture of restoration (p = 0.001) criteria. Conclusions In this study, indirect composite veneers without any preparation on maxillary anterior teeth showed acceptable performance in terms of both survival rate and quality of restorations. This procedure offers a predictable and successful treatment that ensures maximum preservation of the intact tooth

RELIABILITY AND VALIDITY OF THE READINESS FOR INTERPROFESSIONAL LEARNING SCALE (RIPLS) IN TURKISH SPEAKING HEALTH CARE STUDENTS

WOS: 000434980000042Objectives: The purpose of the study was to provide psychometric evaluation of the Turkish version of the Readiness for Interprofessional Learning Scale (RIPLS). Material and methods: This cross-sectional study was carried out with 213 students at the Faculty of Medicine, Faculty of Dentistry and Faculty of Health Sciences. The construct validity of the Turkish version of the scale was analyzed with confirmatory factor analysis (CFA). To determine the reliability of the scale, the Cronbach's alpha coefficient was calculated. In addition, for the assessment of the discrimination of each item on the scale, the top and bottom 27 % from the groups that received the lowest and highest scores from the scale were compared. Results: Standardized coefficients determined with the CFA in the Turkish version of the scale ranged between 0.34 and 0.85 in the students (Except for Item 18). The explained variance values for the items other than item 18 ranged from 0.11 to 0.72. t-values of all the factor loadings were significant. According to the reliability studies of the RIPLS, the internal consistency of Cronbach's Alpha was 0.85 for the overall scale. The t-test results showed that all the items significantly discriminated between students of high and low performance (t: 99.57; p=0.01). Conclusion: As a result, it can be said that the validity and reliability study of the RIPLS administered to Turkish healthcare students indicated that the scale was capable of measuring the Turkish-speaking students' readiness for interprofessional education