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PubMed1988

[Root reactions during treatment with indomethacin in the rat].

During the course of a study on the effect of indomethacin, an inhibitor of PG-synthesis, on the alveolar bone remodeling associated with the drift of the rat molar, the root profile appeared altered. The perimeter of the buccal root of the lower first molar had increased during the 7-day experimental period (+9%; p less than 0.02) in the treated group. This was due to an increase in the extent of root resorption lacunae (+99%; p less than 0.05). They were located in the disto-buccal aspect of the root, i.e., facing the alveolar wall remodeling area. The periodontal ligament width was also increased (p less than 0.001). This might be an adaptative process to maintain the periodontal ligament width as the drift of the teeth had not ceased while the remodeling had markedly slowed down. These results show that the osteoclastic population responsible for root resorption was not PG-dependent, unlike that active on alveolar wall. In addition, dentin deposition was accelerated in the pulp area underlying the resorption lacunae in the treated group as shown by measuring the distance between two fluorescent labels incorporated in a 6-day interval (p less than 0.05).

Alveolar Process↗
PubMed1986

[Approach to age determination based on dental morphological criteria obtained in microradiography, stereomicroscopy and scanning electron microscopy].

The determination of the age owing to the morphology of permanent teeth has been done in 14 men and women, using criteria proposed by Gustafson. It was faithful, the difference between age determined by this method and the true age of these patients being never superior to 3 years. The application of scanning electron microscopy allows to improve some of the criteria used for this determination, especially that based upon the dentinal senescence.

Adult↗
PubMedDate not supplied

The effects of indomethacin on resorption and ankylosis in replanted teeth.

Indomethacin, a nonsteroidal, antiinflammatory analgesic, interferes with the action of prostaglandin synthetase such that osteoclastic activity is reduced. Encouraging results were obtained, pointing toward an improved long-term prognosis for replanted teeth, and as a possible solution to excessive root resorption.

Animals↗