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SYSTEMATIC REVIEW
Year : 2020  |  Volume : 10  |  Issue : 1  |  Page : 190-194

Magnitude of gonial angle influence on the commonness of mandibular angle fractures


Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India

Correspondence Address:
Dr. Rathindra Nath Bera
Room No 142, Sushruta Hostel Trauma Centre, Banaras Hindu University, Varanasi - 221 005, Uttar Pradesh
India
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DOI: 10.4103/ams.ams_23_20

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Background: The aim of the study was to review the literature on the influence of gonial angle on mandibular angle fracture. The present systematic review addresses the following focus question: Does the magnitude of gonial angle influence the incidence of mandibular angle fractures? Materials and Methods: Electronic and manual literature searches were conducted on databases: PubMed/MEDLINE, Embase, Science direct, the Cochrane Library, and clinicaltrials.gov for studies published up to August 2019 to collect information about the effect of gonial angle, a skeletal morphological parameter with an incidence of fracture of the angle of the mandibular arch. Systematic literature review was performed to identify studies evaluating the effect of gonial angle in patients suffering from mandible fractures. Large retrospective studies were included and case reports were excluded. Results: Fifteen hundred articles published before August 2019 were identified. One hundred and sixteen articles met the inclusion criteria. Two articles remained when exclusion criteria were applied. As measured in the two included studies containing 280 panoramic radiographs of mandibular fractures, the mean gonial angle of patients in the angle fracture group ranged from 126.8° ± 7.9° to 128.5° ± 5.4°. The mean gonial angle of patients in the nonangle fracture group ranged from 118.5° ± 4.4° to 122.3° ± 4.9°. The mean gonial angle of patients in the angle fracture group displayed a range from 118.9° to 134.7° (confidence interval [CI] 95% 5.89–8.05), whereas the mean gonial angle of patients in nonangle fracture group displayed a range from 114.1° to 127.2° (CI 95% 3.89–4.95). Conclusion: A high gonial angle is an important factor influencing the occurrence of mandibular angle fractures owing to the poorer quality of bone and reduced height at the ramus angle region, all of which necessitate a modification of osteosynthesis techniques.


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