Lindhe J, Ericsson I
J Clin Periodontol. 1976 May;3(2):110-22. doi: 10.1111/j.1600-051x.1976.tb01857.x.
The experiments were performed in five dogs fed a soft diet which allowed dental plaque accumulation. Experimental periodontal breakdown was introduced on Day 0. After 180 days trauma from occlusion was produced in 4P and P4 i.e. the mandibular fourth premolars, in the manner described by Svanberg & Lindhe (1973). On day 280 the periodontal pockets around 4P and P4 were eliminated. A notch was prepared in the root at the level of the bottom of the surgically eradicated pocket. In addition, the occlusal trauma in the 4P region was deleted. From Day 280 to Day 370 the teeth of the animals were brushed twice a day. The animals were then sacrificed, radiographs of the premolar regions were taken, and tissue sections comprising 3P4P1M (and P3P4M1) were produced and subjected to microscopic analysis. The results indicate that jiggling type occlusal trauma and tooth hypermobility are not factors which detrimentally affect healing following periodontal surgery.
实验在五只喂食软食的犬身上进行，软食会导致牙菌斑堆积。在第0天引发实验性牙周破坏。180天后，按照斯万伯格和林德赫（1973年）描述的方式，对4P和P4（即下颌第四前磨牙）施加咬合创伤。在第280天，消除4P和P4周围的牙周袋。在手术根除牙周袋底部水平的牙根处制备一个切口。此外，消除4P区域的咬合创伤。从第280天到第370天，每天给动物的牙齿刷牙两次。然后处死动物，拍摄前磨牙区域的X光片，并制作包含3P4P1M（和P3P4M1）的组织切片，进行显微镜分析。结果表明，摆动型咬合创伤和牙齿松动不是对牙周手术后愈合产生不利影响的因素。
