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通过对978颗楔状缺损牙的分析,探讨其发生的部位及发生的相关因素;从本组结果看楔状缺损多发生于第二、一双尖牙的唇颊面,与酸蚀无明显关系,与机械磨损及过度颌负荷及基牙、牙龈萎缩、牙周病有关。
Through the analysis of 978 wedge-shaped defect teeth to explore the occurrence of the site and the occurrence of related factors; from the results of this group wedge-shaped defect occurred in the second, a pair of canines lip and buccal surface, and no significant relationship with the etching, and Mechanical wear and excessive jaw load and abutments, gingival recession, periodontal disease.