Three-Dimensional Measurement of Obturation Quality of Bioceramic Materials in Filling Artificial Internal Root Resorption Cavities Using Different Obturation Techniques: An In Vitro Comparative Study

生物陶瓷 牙科 材料科学 复合材料 医学
作者
Ammar M. Sharki,Ahmed H. Ali
出处
期刊:Journal of Endodontics [Elsevier BV]
卷期号:50 (7): 997-1003 被引量:3
标识
DOI:10.1016/j.joen.2024.03.014
摘要

Abstract

Introduction

Pathological conditions such as internal root resorption (IRR) may complicate root canal filling. This study aimed to evaluate and compare the obturation quality by measuring the percentage of obturation volume (POV) in root canals with artificial IRR obturated with different materials and techniques using cone beam computed tomography (CBCT).

Methods

Forty single canal extracted mandibular premolars were decoronated to standardize their length to 14mm. Following instrumentation, the roots were cut horizontally, and artificial IRR cavities were made at the level of 7mm from the apex. The root halves were joined using cyanoacrylate adhesive. The samples were randomly assigned to four groups (n = 10), and the canals were filled as follows: Single-cone technique (SC), bulk-fill Bio-C Sealer (BF), Bio-C Repair for the coronal and middle third (BCR) +cold lateral condensation technique (CLC) for the apical third and continuous wave compaction technique (CWC). The pre-and post-obturation volumes and the POV were measured in the total canal and for the apical, middle, and coronal thirds separately using CBCT and Mimics Medical software. The results were analyzed statistically using one-way ANOVA and Tukey HSD test, and statistical significance was set at p<0.05.

Results

BF group resulted in significantly lower total, coronal, middle and apical POV values compared to SC, BCR+ CLC, and CWC groups (p < 0.05), respectively. Also, at the apical third, the BCR+ CLC group showed significantly lower POV than the SC and CWC groups (P<0.05), respectively. The intra-group comparison showed that BF and BCR+ CLC groups had a significantly lower POV in the apical third compared to the middle third (p<0.05). Conversely, the CWC group had a significantly higher apical POV than the middle third (p<0.05).

Conclusions

The maximum POV was obtained using the CWC technique, Bio-C Repair, and SC technique with Bio-C Sealer, making their application in IRR more preferable than the BF Bio-C Sealer.
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