Effect of calcium phosphate ceramic implants on tooth eruption.

This study evaluated the effects of calcium phosphate ceramics, hydroxylapatite, and tricalcium phosphate implants on tooth eruption and development. Forty kittens, three to four months of age, had their primary right second and third mandibular premolars extracted and the sockets packed with either hydroxylapatite, tricalcium phosphate, autogenous cancellous marrow, or nothing. The results of this study indicated that the use of a nonresorbable hydroxylapatite for grafting resulted in impediment of tooth eruption and distortion of crown development. This was in contrast to the tricalcium phosphate, which had minimal effect on tooth eruption and development.