The effect of an early Le Fort III surgery on permanent molar eruption.

The purpose of this retrospective study was to evaluate the extent to which an early Le Fort III osteotomy affects the position and eruption of the permanent maxillary first and second molars. To test the null hypothesis that there are no changes in eruption patterns, 31 patients diagnosed with craniosynostoses (13 with Crouzon's syndrome, nine with Apert's syndrome, eight with Pfeiffer's syndrome, and one with Carpenter's syndrome) with a mean age at the time of surgery of 5.3 +/- 1.

Horizontal ridge augmentation using human mineralized particulate bone: preliminary results.

Purpose: We evaluated the hypothesis that particulate human mineralized bone can be used to augment the thin mandibular ridge followed by implant placement 4 months after augmentation. The thin ridge prevents implant placement without grafting.

Patients And Methods: Eleven consecutive patients with thin posterior mandibular ridges had approximately 1 cc of particulate human mineralized bone placed through a tunneling approach to augment the ridge width.