Bone volume collected from dental implant sites during osteotomy

Purpose: Little research has been done to determine the amount of bone harv ested from implant site preparations using an inline bone collector. This s tudy looked at the amount of bone that can be harvested from common dental implant osteotomies. Patients and Methods: A total of 24 implants were placed in 9 patients over a 3-month period. Implant size ranged from 3.75 X 13 mm to 4.75 X 13 mm. N ine implants were placed in the maxilla, and 15 implants were placed in the mandible. Seven patients were female, and 2 patients were male. The patien t age ranged from 27 to 72 years. Four patients had implants placed within 5 years after tooth extraction, and 5 patients had implants placed 5 years after tooth extraction: an analysis of variance was used to determine if th ere were statistical differences between maxilla versus mandible, male vers us female, and edentulism less than or greater than 5 years. Results: The average bone volume from the 24 osteotomies was 0.195 +/- 0.09 9 mL. The average osteotomy site measured 4.02 X 12.90 min. There were no s tatistical differences noted among maxilla and mandible, gender, or time of edentulism. Conclusions: When using an inline bone collector to harvest implant osteoto my sites, an average of 0.195 nil, of bone can be obtained from a site appr oximately 4.0 X 13 mm. This bone can often be combined with a xenograft or alloplastic material to provide extra bulk to fill peri-implant defects. Wh en multiple implant sites are prepared, often sufficient bone can be obtain ed with the bone collector alone. (C) 2001 American Association of Oral and Maxillofacial Surgeons.