Status of Endodontic Treatment and the Correlations to the Quality of Root Canal Filling and Coronal Restoration.

Introduction: This cross-sectional study evaluated the prevalence and quality of root canal treatment in 1,977 digital radiological files.

Materials And Methods: Data were statistically analyzed using descriptive analysis, and the chi-square test was performed with a 5% significance level.

Results: The mean age of the study population was 34.

Tomographic imaging of fragmented cortical bone heteroimplant and methylmethacrylate in segmental bone defect of rabbit tibia.

Purpose: To evaluate the performance of composites consisting of fragmented cortical bone heteroimplant in association with methylmethacrylate preserved in 98% glycerin, in segmental bone defect of rabbit tibia medial metaphysis.

Methods: In this study were used twelve adult New Zealand rabbits, divided into three groups of four animals each: G30 (30 days), G60 (60 days) and G90 (90 days). The bone defects previously created in the tibia were filled with composites and both were evaluated by cone-beam computed tomography, immediately after surgery and after 30, 60, and 90 days.

Prevalence of impacted teeth in a Brazilian subpopulation.

The objective of this study was to estimate the prevalence of impacted teeth in a subpopulation of Brazilian patients based on the retrospective analysis of panoramic radiographs obtained at an oral radiology clinic. Out of 1,977 panoramic radiographs, 1,352 fulfilled inclusion criteria, and 22,984 teeth were assessed. Data were statistically analyzed using Kolmogorov-Smirnov's and Levene's tests; significance was set at 5%.