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Prognosis of teeth in mandibular fracture lines
Author(s) -
Lee WonBum,
Kim YongDeok,
Shin SangHun,
Lee JaeYeol
Publication year - 2021
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/edt.12647
Subject(s) - medicine , dentistry , periodontal fiber , root canal , mandibular fracture , tooth fracture , exact test , displacement (psychology) , tooth mobility , dental alveolus , orthodontics , radiography , retrospective cohort study , mandible (arthropod mouthpart) , oral and maxillofacial surgery , surgery , psychology , psychotherapist , botany , biology , genus
Background/Aims Teeth in a jaw fracture line, because of the presence of the periodontal ligament, may communicate with the oral cavity. There are no guidelines for the management of teeth in mandibular fracture lines. The aim of this study was to investigate the factors related to dental problems with teeth involved in mandibular fracture lines and to determine the best treatment option. Material and Methods This retrospective study was based on the medical and radiographic records of patients with mandibular fractures. The relationships among the patient’s age, gender, smoking history, amount of bony displacement, surgery, trauma‐surgery period, apical involvement, tooth mobility, and periodontal status were investigated. Group comparisons were performed using the chi‐squared test, Fisher’s exact test, and Mann–Whitney U ‐test. Result A total of 238 patients (247 fracture lines) with mandibular fractures including a tooth in the line of the fracture were examined. Post‐operative dental complications occurred in 42 cases (17.0%). Extraction of related teeth occurred in 34 cases (80.9%) compared to eight cases (19.0%) related to root canal therapy. This study defined “dental problem” as “a case with a tooth extracted or endodontically treated after trauma.” The variables associated with an increased risk of dental problems were the amount of bony displacement ( p < .01), tooth mobility ( p < .01), and pre‐existing marginal alveolar bone loss ( p = .027). Conclusion The prognosis of teeth in mandibular fracture lines was related to tooth mobility, periodontal state, and the amount of bony displacement.