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本研究对口腔内科门诊中35岁以上、至少保留1个第三磨牙者440例进行调查。结果表明因第三磨牙龋病、牙髓根尖病及其相关病变(包括第二、三磨牙间食物嵌塞、第二磨牙远中面龋及与第三磨牙相关的粘膜病)就诊者182例;1158颗第三磨牙中以垂直位者多见,占53.97％;第三磨牙龋坏机率高于其他磨牙及双尖牙(p<0.001);在与第三磨牙相关的粘膜病中以过角化(110例)和创伤性溃疡(35例)为多见,且显示出慢性刺激对白斑与扁平苔藓发生有促进作用。提示保留至中老年的第三磨牙潜在致病性的存在;所以除完全正位萌出且易清洁或对义齿修复有帮助者均应及早拔除。从而进一步丰富了人们对中老年人口腔状况尤其是第三磨牙的认识。
In our study, 440 patients aged 35 years and over with at least one third molars in the oral medicine clinic were investigated. The results showed that due to the third molars caries, apocynum and related lesions (including the second and third molars food impaction, the second molar distal caries and mucosal disease associated with the third molars) 182 In the 1158 third molars, the vertical position was more common, accounting for 53.97%. The third molar rate was higher than other molars and bicuspids (p <0.001). In the third molars-related mucosal diseases, Hyperkeratosis (110 cases) and traumatic ulcer (35 cases) were more common, and showed that chronic stimulation of white spots and lichen planus have a role in promoting. Tip to retain the third molar in the elderly with the potential of the existence of pathogenicity; so in addition to completely erect eruption and easy to clean or denture repair who should be removed as soon as possible. Thus further enriching people's understanding of the oral conditions of the elderly, especially the third molars.