Classification of furcation involvement of endodontically treated mandibular first permanent molars based on cone beam CT
10.12016/j.issn.2096-1456.2023.07.005
- Author:
TANG Rong
1
;
HU Yanni
1
;
LIN Zitong
1
Author Information
1. Nanjing Stomatological Hospital, Medical School of Nanjing University, Department of Dentomaxillofacial Radiology
- Publication Type:Journal Article
- Keywords:
cone beam CT / mandibular first permanent molars / furcation involvement / root canal therapy / periodontal disease / apical periodontitis / perforation / danger zone
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2023;31(7):488-493
- CountryChina
- Language:Chinese
-
Abstract:
Objective :To classify the furcation involvement (FI) of endodontically treated mandibular first permanent molars based on cone beam computed tomography (CBCT), provide reference for individualized treatment of FI.
Methods:CBCT images of the FI of 164 endodontically treated mandibular first permanent molars from 163 patients in Nanjing Stomatological Hospital, Medical School of Nanjing University were collected retrospectively. On the CBCT images, the shape and extent of periapical and periodontitis bone resorption, the thickness of residual dentin in the pulp floor and root canal wall, and the periodontal bone resorption of the complete dentition were evaluated. The FI was classified into periodontal, periapical, perforated and mixed types.
Results:Among the 164 FIs of endodontically treated mandibular first permanent molars, the periapical type was the most common (41.5%), followed by the mixed type (26.2%), perforated type (18.3%), and periodontal type (14.0%). Among the 68 periapical-type FIs of endodontically treated mandibular first permanent molars, 48.5% were proper root canal filling, 44.1% were insufficient filling and 7.4% were overfilling. Among the 43 mixed-type FIs, the periodontal mixed periapical type was the most common (72.1%).
Conclusion :Detailed evaluation and classification of furcation involvement could be performed using CBCT images; therefore, the study has guiding significance for clinical treatment.
- Full text:基于锥形束CT影像的下颌第一恒磨牙根管治疗后根分叉病变的分类研究.pdf
