摘要
目的探讨前磨牙楔状缺损与面磨损间的关系。方法以1839颗离体前磨牙为研究对象,观察记录所有牙的面磨损程度,颊侧牙颈部楔状缺损情况。对于有楔状缺损的牙,观察记录楔状缺损的形态,测量楔状缺损的深度和宽度,分析楔状缺损与面磨损间的相互关系。结果1839颗离体前磨牙中,楔状缺损患牙有644颗,患病率为35.02%。不同牙位的牙楔状缺损的患病率存在统计学差异(P<0.05)。面有磨损的牙与无磨损牙的楔状缺损患病率也存在统计学差异(P<0.05),楔状缺损的深度和宽度与牙齿面磨损程度有关(P<0.01)。面有磨损的牙与无磨损牙的楔状缺损形态构成有统计学差异(P<0.05)。结论前磨牙的面磨损与其楔状缺损的发生具有相关关系。
Objective To investigate the association of the dental wedge-shaped defect （non-carious cervical lesion） with its abrasion in Chinese 1 839 premolars. Methods To observe the morphology of non-carious cervical lesions and the situation of abrasion on the occlusal surface. The depth and width of cervical lesions were measured. Results Wedge-shaped defect was found in 644 premolars and the incidence was 35.02%. There was significant difference in incidence of lesion among different kinds of premolars （P〈0.05）. And the incidence of cervical lesion between teeth with and without abrasion was different（P〈0.05）. As abrasion on the occlusal surface developed, the depth and width of lesions increased （P〈0.01）. The morphology of lesion was related to abrasion on the occlusal surface （P〈0.05） Conclusion The development of wedge-shaped defect in premolar is associated with its occlusal abrasion.
出处
《国际口腔医学杂志》
CAS
2007年第1期71-74,共4页
International Journal of Stomatology
