Clinical analysis of pericoronitis in yunnan college ethnic students

Abstract

Objective To study and compare the recurrence rate of wisdom tooth pericoronitis and impacted tooth types of Yunnan college ethnic student. Methods 549 cases of pericoronitis of wisdom tooth from Yunnan college eth⁃ nic students were randomly selected by recording clinical symptom, recurrence situations and impacted tooth types by professional dentists, then clinical data was statistical analyzed. Results Most of pericoronitis (58.65%) was caused by vertical impaction of mandibular wisdom tooth. There was no significant difference (P＞0.05) between Han ethnic groups and Minority ethnic groups of impacted tooth types. But there was significant difference (P＜0.01) between Han ethnic groups and Minority ethnic groups of pericoronitis of wisdom tooth and recurrence rate. Conclusion There was higher rate of incidence and recurrence rate of pericoronitis of minority students.

Keywords

• Pericoronitis of wisdom tooth of wisdom tooth
• Impacted tooth types
• Clinical manifestatiou
• Recurrence rate
• College ethnic student