LACK OF EFFECT OF TRAUMA FROM OCCLUSION ON RECURRENCE OF EXPERIMENTAL PERIODONTITIS
LACK OF EFFECT OF TRAUMA FROM OCCLUSION ON RECURRENCE OF EXPERIMENTAL PERIODONTITIS
复制标题
DOI：
10.1111/j.1600-051x.1977.tb01891.x
复制
发表时间：
1977-01-01
影响因子：
6.7
通讯作者：
LINDHE, J
中科院分区：
文献类型：
--
作者：
ERICSSON, I;LINDHE, J
实验在 15 只狗身上进行，它们的饮食允许牙菌斑积聚。实验性牙周破坏阶段从第0天开始。210天后，处死5只狗。其余 10 只狗的第四下前磨牙（4P 和 P4）周围的牙周袋被消除。在手术过程中，在牙槽骨边缘末端水平处的牙根处制备切口，以便于组织学切片中的测量。从第210天到第450天，每天给动物刷牙两次。治愈 60 天后，即第 270 天，5 只狗被处死。第 270 天，通过安装帽夹板和杆装置，在剩余狗的 P4 区域中产生了由摇动型咬合造成的创伤。最后5只狗在第450天处死。处死后，制作包含3P、4P、1M和P3、P4、M1的组织切片并进行显微镜分析。在狗身上，明显由咬合创伤产生的力无法引起牙齿区域牙周组织逐渐破坏的阶段，其中支持组织明显减少但无炎症。
The experiments were performed in 15 dogs fed a diet which allowed dental plaque accumulation. A phase of experimental periodontal breakdown was initiated on day 0. After 210 days 5 dogs were sacrificed. In the remaining 10 dogs the periodontal pockets around the 4th lower premolars (4P and P4) were eliminated. During surgery a notch was prepared in the root at the level of the marginal termination of the alveolar bone in order to facilitate measurements in histological sections. From day 210 to day 450 the teeth of the animals were brushed twice daily. After 60 days of healing, i.e., on day 270, 5 of the dogs were sacrificed. Trauma from occlusion of the jiggling type was on day 270 produced in the P4 region of the remaining dogs by the installation of a cap splint and a bar device. The final 5 dogs were sacrificed on day 450. Following sacrifice, tissue sections comprising 3P, 4P, 1M and P3, P4, M1 were produced and subjected to microscopic analysis. In the dog, forces apparently produced by occlusal trauma are unable to induce a phase of progressive destruction of the periodontal tissues in tooth regions where the supporting tissues are markedly reduced but non-inflammatory.