Obturation quality analysis of furcation perforations repaired with different magnifications and biomaterials
BMC ORAL HEALTH, vol.26, no.1, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 26 Issue: 1
- Publication Date: 2026
- Doi Number: 10.1186/s12903-026-07891-w
- Journal Name: BMC ORAL HEALTH
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CINAHL, MEDLINE, Directory of Open Access Journals
- Keywords: Root perforation, Dental operating microscope, Calcium silicate cements
- Dokuz Eylül University Affiliated: No
Abstract
Introduction This study aimed to evaluate the obturation quality of furcation perforations repaired using two different calcium silicate-based materials under two different magnification levels, using micro-computed tomography analysis. Methods Forty-eight standardized dentin disks with artificially created perforations were randomly assigned into four groups: White MTA (Angelus, Londrina, Brazil) under 4 & times;, Bio-C Repair (Angelus, Londrina, Brazil) under 4 & times;, White MTA under 10 & times;, and Bio-C Repair under 10 & times; magnification (n = 12).The perforated dentin disks were bonded to a resin crown using composite resin and subsequently mounted onto a phantom head model.The repairs were performed using a dental operating microscope (DOM), and a single experienced endodontist completed all procedures. After setting, the samples underwent micro-CT scanning.The volumes of materials, gaps, and voids were measured and differences between groups were analyzed using Kruskal Wallis test, t-test and Mann Whitney U test. Results All samples exhibited some degree of voids and gaps. Magnification level (4 & times; vs. 10 & times;) did not significantly affect obturation quality (p > 0.05). However, the type of repair material had a significant impact on the outcome. White MTA exhibited significantly fewer voids, gaps, and total unfilled volume compared to Bio-C Repair (p < 0.05). Conclusion Increasing the magnification level from 4 & times; to 10 & times; did not improve the sealing quality in furcation perforation repair. However, White MTA demonstrated superior adaptation and condensation characteristics to Bio-C Repair, regardless of magnification. While handling the properties of powder-liquid MTA may pose clinical challenges, it remains a more effective option for achieving superior sealing in furcation perforation repairs than premixed putty formulations.