Abstract
Delayed-onset infection is defined as infectious swelling and trismus accompanied by pain or the presence of suppuration starting approximately 30 days after surgery. This study aimed to describe the occurrence and potential predisposing factors of delayed-onset infection. A retrospective case-control study of 223 lower third molar surgeries was performed. Participants were selected from among 1102 outpatients who underwent surgery between January 2013 and June 2018 at Semmelweis University. The inclusion criterion for the case group was inflammation of the operated area after suture removal. Patients in the control group were healthy nonsmokers <26 years old who healed without complication. Statistical analysis was performed using the Shapiro-Wilk test, the Mann-Whitney U test, and Fisher's exact test. Complications occurred only in patients <26 years old approximately 29.5 days after surgery. A significantly higher risk was observed for younger age, total soft tissue coverage, deeper impaction, lower Nolla stage (P < .001), mesioangular direction (P=.002), and full bone coverage (P < .05). Distal space was inversely correlated with complications (P < .001). Lower Nolla stage, total soft tissue coverage, lack of distal space, deeper impaction, or mesioangular tilt may promote delayed-onset infection. Follow-up of at-risk patients and the maintenance of oral hygiene are recommended.
Highlights
Our present study aimed to identify the frequency and predisposing factors of delayed-onset infection (DOI) at the Semmelweis University Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology
Statistical analysis The normality of scale variables was assessed using the Shapiro-Wilk test
DOIs were observed in 7 male patients and 10 female patients
Summary
Delayed-onset infection is defined as infectious swelling and trismus accompanied by pain or the presence of suppuration starting approximately 30 days after surgery. This study aimed to describe the occurrence and potential predisposing factors of delayed-onset infection. A retrospective case-control study of 223 lower third molar surgeries was performed. Lower Nolla stage, total soft tissue coverage, lack of distal space, deeper impaction, or mesioangular tilt may promote delayed-onset infection. The initial symptoms of delayed-onset infection (DOI) are swelling, jaw stiffness, and moderate pain; in certain cases, pus formation and fever may occur. In addition to an increased number of cases, we investigated novel parameters, including the role of the lower aDepartment of Oro-Maxillofacial Surgery and Stomatology, Faculty of Dentistry, Semmelweis University, Budapest, Hungary. Our present study aimed to identify the frequency and predisposing factors of DOI at the Semmelweis University Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology. Our objective was to revise and augment existing data on postoperative infections that have only been studied sporadically to date
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