Abstract
Normal Wistar rats, aged four and six month, were fed an atherogenic diet and the resulting periodontal changes were determined after six and eight weeks using histological, histochemical and histometrical methods. The changes of the alveolar bone remodelling adjacent to incisor teeth were compared with those around molar teeth.A diminished formation of new bone and an increased osteoclastic resorption were found in the alveolar bone of the rats fed the atherogenic diet. In addition gingival inflammation and the development of periodontal pockets were observed.Using histometrical evaluation it could be demonstrated that these alveolar bone changes were significantly more pronounced in the incisor teeth than in the molars. It is supposed that the latter finding is due to the more intense remodelling of the alveolar bone in the constantly growing teeth of rodents.
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