Osteogenesis distraction and platelet-rich plasma: combined use in restoration of severe atrophic mandible. Long-term results.
Clin Oral Implants Res
; 19(11): 1202-10, 2008 Nov.
Article
em En
| MEDLINE
| ID: mdl-18983325
ABSTRACT
OBJECTIVES:
The purpose of this paper is to report long-term results on the use of autologous bone graft and platelet-rich plasma in alveolar distraction osteogenesis (DO) for restoration of severe atrophic mandible. We tested the efficacy as to reabsorption of bone volume, peri-implant reabsorption, implant survival and success rate. MATERIALS ANDMETHODS:
Twelve patients were treated. The surgical procedure consisted in mixing autologous bone, harvested from the iliac crest, with autologous platelet concentrate (APC) and in filling the distraction gap with this graft. After a latency of 15 days, a distraction rate of 0.5 mm/day was followed. After a 60-day period of consolidation, the distraction device was removed and implants were placed simultaneously. The abutment connection was accomplished after 6 months. In addition, every patient was evaluated clinically and radiographically annually for 5 years.RESULTS:
Planned alveolar height was reached in 11 out of 12 patients. The total number of implants positioned was 47. At the time of implant positioning, the mean decrease of total bone volume was 2.3%. The mean peri-implant resorption was 0.40 mm at the time of abutment connection, 0.61 mm 1 year after implant loading and 1.51 mm after 5 years. After 5 years of follow-up, the mean rate of vertical bone loss was 18.7%. Instead, the implant survival and success rates were 97.9% and 91.5%, respectively.CONCLUSIONS:
Long-term results allow us to confirm the combination of autologous bone-platelet gel with alveolar DO as an effective and predictable procedure in restoration of severe atrophic mandible.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Regeneração Óssea
/
Osteogênese por Distração
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Implantação Dentária Endóssea
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Plasma Rico em Plaquetas
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Aumento do Rebordo Alveolar
Tipo de estudo:
Etiology_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Clin Oral Implants Res
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Itália