Intraoral Impressions for Assessment of Wear of Teeth and Restorative Materials. — GIC  

Wear, Occlusal Clinical Trial

Official title: Suitability of Intraoral Impressions for Assessment of Wear of Teeth and Restorative Materials Over 60 Months Using the Replica Method and 3-D Laser Equipment.

Status Active, not recruiting

Clinical Trial Summary

Suitability of intraoral impressions for assessment of wear of teeth and restorative materials over 60 months, using the gypsum replica method and 3-D laser scanning: perspective clinical and laboratory evaluation.

Clinical Trial Description

The study will assess suitability of intraoral impressions for assessment of wear of artificial dental restorative materials over 60 months. Subjects are recruit from patients that undergo a dental restorations independently from the present study. The sample size of n=65 would enable detection of differences in material and tooth wear greater than 10-13% from the baseline volume of teeth, when compared with volumes of teeth obtained from impressions taken at follow-ups, with the power of 0.8 and for the significance level of p=0.05. Paired t-test or a Wilcoxon signed-rank test is implemented depending on the distribution of the variables, for primary aim of evaluating suitability of polyvinylsiloxane dental impression for determination of wearing of teeth and restorative materials.

Paired t-test for each sub-score or a Wilcoxon-signed rank test is implemented, depending on the distribution of the variables, for secondary aims. Then, if variables are considered also as categorical, a Mc Nemar test for each sub-score will be suggested ;

Related Conditions & MeSH terms

• Tooth Wear
• Wear, Occlusal
• Wear, Restoration
• Wear, Tooth

• NCT number: NCT03624894
• Study type: Observational
• Source: Istituto Ortopedico Galeazzi
• Status: Active, not recruiting
• Start date: February 1, 2016
• Completion date: November 16, 2021