Korean J Orthod.
1970 Dec;1(1):15-20.
A histologic study on the responses of pulp in experimental tooth movement of white rats
- Affiliations
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- 1Department of Orthodontics, Graduate School, Seoul National University, Seoul, Korea.
Abstract
- The author investigated on the responses of pulp and dentine following tooth movements. The material consisted of fifty-four intact teeth from twenty-seven adult white rats. The half of the teeth were employed as controls and the other half served as experimental group. These teeth were moved with forces ranging from 30 grams to 120 grams for from 3 to 7 days. All these were extracted immediately after the force was relieved. The main pulp changes in the experiment were vacuolization of the pulp tissue and circulatory disturbances. The magnitude of the force had an important role. In addition to these changes, the resorption in dentine and cementum was observed, which was related to the magnitude of the force and the duration of experiment.
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