Basic and patient-oriented researchFrequency Estimates and Risk Factors for Postoperative Morbidity After Third Molar Removal: A Prospective Cohort Study
Section snippets
Study Design and Sample
To address the study purpose, the investigators designed and implemented a prospective cohort study. The sample was derived from the population of patients presenting to the oral and maxillofacial surgery (OMFS) department at the UJH for evaluation of impacted mandibular M3s between April 2006 and April 2007. Participants were healthy individuals with no systemic diseases, American Society of Anesthesiologists grade I, who needed extraction of at least 1 impacted mandibular M3. One inclusion
Results
During the study interval, 149 patients were screened for study enrollment. One patient was excluded because she had oral antibiotics prescribed by their general medical practitioners in the postoperative period for reasons not related to her surgery. The final sample for data analyses was composed of 148 subjects having 245 mandibular M3s removed. The descriptive statistics for the sample are summarized in Table 1. The mean age of patients was 21.6 ± 3.32 years, and nearly two thirds of them
Discussion
Several studies looked at the relationship between postoperative morbidity after the surgical removal of mandibular M3 and individual risk factors without adjusting for other potential risk indicators.2, 9, 15, 16 The purpose of this study was to estimate the frequency of postoperative complications after mandibular M3 removal and to identify the risk factors using a multiple logistic regression model to control for potential confounding variables. Our results showed that 37.2% of patients
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