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ORIGINAL ARTICLE
Year : 2021  |  Volume : 9  |  Issue : 1  |  Page : 7-11

Prevalence and predictors of disarticulation resection of the mandibles in a Nigerian subpopulation


Department of Oral and Maxillofacial Surgery, University of Benin Teaching Hospital, Benin City, Nigeria

Correspondence Address:
Dr. Ekaniyere Benlance Edetanlen
Department of Oral and Maxillofacial Surgery, University of Benin Teaching Hospital, Benin City
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/njecp.njecp_40_20

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Background: Few studies are reported in the literature about the prevalence of disarticulation resection of the mandible, but little is known about the risk factors. This study is aimed at determining the prevalence and risk factors of disarticulation resection of the mandible. Patients and Methods: This was a retrospective study design for patients that had surgical resections of the mandible from January 2010 to July 2020 at the Department of Oral and Maxillofacial Surgery of a tertiary health facility in Nigeria. Collected data from the patients' case-notes were age, gender, level of education, place of residence, occupation, employment status, tobacco use, alcohol consumption, type of lesion, and type of resection performed. In the univariate analysis, the Chi-square test was used for analysis, while the binary logistic regression was used for multivariate analysis. All statistics were performed with SPSS version 21 (IBM Corps, Armonk, New York, USA). A value of P < 0.05 was considered significant. Results: A total number of 189 patients who presented for mandibular resections ranged in age from 13 to 75 years with a mean age of 41.4 ± 14.9 years. There were more males (63.5%) than females (36.5%) with M: F ratio of 1.7:1. More than half of the patients had disarticulation resection of the mandible, giving a prevalence of 64.0%. Alcohol consumption (P = 0.01) and the type of lesion (P = 0.00) were significantly associated with the prevalence of disarticulation resection of the mandibles. Only the type of lesion added to the predictive power of the risk factors (P = 0.03). The odontogenic keratocyst was 0.12 more likely to result in disarticulation resection of mandible than solid ameloblastoma. Conclusion: The prevalence of disarticulation resection of the mandible was 64.0%. The type of lesion in the mandible was a significant risk factor of the high prevalence of its disarticulation resection.


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