Geiger A M, Wasserman B H
Angle Orthod. 1976 Apr;46(2):99-110. doi: 10.1043/0003-3219(1976)046<0099:ROOAPD>2.0.CO;2.
In this study population the following observations have been made: Periodontal destruction, gingival inflammation and mobility were not significantly related to axial inclination of the incisor teeth. Labial gingival recession of the mandibular incisor was related to linguoversion (less than 85 degrees to GoGn). No other associations between incisor inclination and labial or lingual recession were found. Age was not related to either maxillary or mandibular incisor inclination. The periodontal-incisor inclination relationships reported above for periodontal destruction and gingival inflammation were not altered by the factor of age. Study of the secondary influence of incisor inclination on the relationships of selected occlusal factors and periodontal pathosis showed: A. Severe overjet (more than 6mm) had been found to be associated with more periodontal destruction. With severe overjet maxillary incisors in linguoversion (less than 100 degrees to SN) were somewhat healthier than all others. Among the same cases of severe overjet mandibular incisors in labioversion had slightly more disease than all others. B. The absence of a significant correlation between anterior overbite or crowding reported previously was not influenced by incisor inclination. C. Facial alveolar bone thickness, observed clinically, was studied for its relation to periodontal destruction and gingival inflammation. Thick facial alveolar bone was found to be associated with increased pathosis. This finding was not consistent for the maxillary and mandibular incisor and the influence of other factors might be suspected: Incisor inclination had no effect on the bone thickness-periodontal disease findings.
在本研究人群中，有以下观察结果：牙周破坏、牙龈炎症和牙齿松动与切牙的轴向倾斜度无显著相关性。下颌切牙的唇侧牙龈退缩与舌向倾斜（与GoGn小于85度）有关。未发现切牙倾斜度与唇侧或舌侧退缩之间的其他关联。年龄与上颌或下颌切牙的倾斜度均无关。上述关于牙周破坏和牙龈炎症的牙周-切牙倾斜度关系不受年龄因素的影响。对切牙倾斜度对选定咬合因素与牙周病变关系的二次影响的研究表明：A. 已发现严重覆盖（超过6mm）与更多的牙周破坏有关。在严重覆盖的情况下，舌向倾斜（与SN小于100度）的上颌切牙比其他所有切牙稍健康。在相同的严重覆盖病例中，唇向倾斜的下颌切牙比其他所有切牙的疾病略多。B. 先前报道的前牙覆合或牙列拥挤之间无显著相关性不受切牙倾斜度的影响。C. 对临床观察到的面部牙槽骨厚度与牙周破坏和牙龈炎症的关系进行了研究。发现厚的面部牙槽骨与病变增加有关。这一发现对上颌和下颌切牙并不一致，可能怀疑有其他因素的影响：切牙倾斜度对骨厚度-牙周疾病的研究结果没有影响。
