[Interaction between orthodontic tooth movement and hydroxyapatite ceramics]

A pilot study examined the clinical and histological effects of orthodontic tooth movement in hydroxyapatite-augmented ridges in animal models. Responses observed at the interface between the clinical root and the ceramo-osseous regeneration were negative: impairment of periodontal function had led to immobility and root resorption. On the basis of this experience one must advice against using this approach in humans at the present time. Further studies will be conducted to elucidate the relevant clinical questions.