Premium
Healing of horizontal circumferential periodontal defects following regenerative surgery in beagle dogs
Author(s) -
Bogle Gary,
Claffey Noel,
Egelberg Jan
Publication year - 1985
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1985.tb01361.x
Subject(s) - cementoenamel junction , cementum , ankylosis , dentistry , resorption , beagle , dental alveolus , medicine , connective tissue , regeneration (biology) , enamel paint , pathology , dentin , biology , molar , microbiology and biotechnology
Regenerative surgery of dog teeth with reduced periodontal support was undertaken to determine: (1) if new connective tissue attachment could be predictably attained back to the level of the cemento‐enamel junction; and (2) to what extent the new attachment would be accompanied by bone regeneration, root resorption, and ankylosis. The alveolar bone around mandibular premolars was surgically reduced up to 6 mm from the cementoenamel junction. The denuded root surfaces were exposed to the oral environment during a period of 3 months without plaque control. Regenerative surgery was then carried out employing citric acid root conditioning and coronally positioned flaps. 6 months later, histologic evaluation of the midbuccal and midlingual areas of mesial and distal roots revealed new attachment over extended portions of the root surfaces. In 9] of 120 available surfaces, there was no epithelial downgrowth apical to the cemento‐enamel junction. Bone regeneration varied from negligible amounts to complete reformation. However, root resorption and ankylosis were prevalent features. 2 different types of resorptions could be distinguished: those occurring near the cemento‐enamel junction (cervical resorption). and those occurring more apically in areas of newly formed bone (ankylosis‐associated resorption). Resorption of either or both types was noted for 92 of the 120 surfaces.