[Quantitative study on the effects of occlusal overload on the remodelling of the alveolar process in the rat].
A quantitative study of alveolar bone resorption around the first lower rat molar has been conducted on horizontal sections. The number of osteoclasts/mm2 and the percentage of resorbing periodontal membrane surface of the socket rose through an increase in occlusal forces induced by an amalgam filling in slight occlusal overbite. The increase in resorption was significantly related to the duration of force application. The number of osteoclasts was more than tripled after 18 days. But this increase was observed in areas already previously submitted to osteoclastic resorption during bone remodeling associated with physiological tooth drift.
D000539:Alveolar Process / Q000473:pathology; D000818:Animals; D001862:Bone Resorption / Q000209:etiology* / Q000473:pathology; D002452:Cell Count; D003769:Dental Occlusion, Traumatic / Q000150:complications*; D008297:Male; D010010:Osteoclasts / Q000473:pathology; D010513:Periodontal Ligament / Q000473:pathology; D051381:Rats
Etude quantitative des effets d'une surcharge occlusale sur le remaniement de la paroi alvéolaire chez le rat