Koral S M, Howell T H, Jeffcoat M K
J Periodontol. 1981 Aug;52(8):447-50. doi: 10.1902/jop.1981.52.8.447.
Ninety patient records were examined in order to determine radiographically whether an association between open interproximal contacts and increased alveolar bone loss exists. The amount of alveolar bone in the open contact site was compared to the amount of alveolar bone in the contralateral closed contact site. Open interproximal contacts were not found to be associated with increased alveolar bone destruction in Class, I, III and IV periodontal disease groups. In group of 53 Class II cases, open contacts were found to be associated with an average of 2.4% less relative bone height than contralateral closed contacts. This difference was significant at the 0.01 to 0.02 level.
为了通过影像学确定邻面接触开放与牙槽骨丧失增加之间是否存在关联，对90份患者记录进行了检查。将接触开放部位的牙槽骨量与对侧接触闭合部位的牙槽骨量进行比较。在I、III和IV类牙周疾病组中，未发现邻面接触开放与牙槽骨破坏增加有关。在53例II类病例组中，发现接触开放部位的相对骨高度平均比对侧接触闭合部位少2.4%。这种差异在0.01至0.02水平上具有显著性。
