Use of autogenous bone and beta-tricalcium phosphate in maxillary sinus lifting: histomorphometric study and immunohistochemical assessment of RUNX2 and VEGF.
Int J Oral Maxillofac Surg
; 46(4): 503-510, 2017 Apr.
Article
em En
| MEDLINE
| ID: mdl-28185708
ABSTRACT
The aim of this study was to compare the use of beta-tricalcium phosphate (ß-TCP) (chronOS) with autogenous bone grafts alone in maxillary sinus elevation surgery. The test samples were ß-TCP alone, ß-TCP mixed with autogenous bone grafts (11), and autogenous bone grafts alone. Twelve maxillary sinuses were grafted with ß-TCP (group 1), nine with ß-TCP+autogenous bone graft (group 2), and 12 with autogenous bone graft (group 3). After 6 months, biopsies were obtained concurrent to the placement of dental implants; these were subjected to histomorphometric analysis and immunohistochemical analysis for runt-related transcription factor 2 (RUNX2) and vascular endothelial growth factor (VEGF). The average bone formation in group 1 was 46.3±11.6% in the pristine bone region, 47.6±9.9% in the intermediate region, and 44.8±22.1% in the apical region; in group 2, values were 35.0±15.8%, 32.5±13.7%, and 32.8±16.0%, respectively; in group 3, values were 43.1±16.0%, 31.0±13.0%, and 46.1±16.3%, respectively. Immunostaining of samples in group 2 showed high cellular activity and immature bone; this differed from groups 1 and 3, in which mature bone was demonstrated. Thus, this study showed that ß-TCP presents the same behaviour as autogenous bone graft, which makes it a good bone substitute.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osteogênese
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Fosfatos de Cálcio
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Transplante Ósseo
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Substitutos Ósseos
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Fator A de Crescimento do Endotélio Vascular
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Subunidade alfa 1 de Fator de Ligação ao Core
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Levantamento do Assoalho do Seio Maxilar
Tipo de estudo:
Observational_studies
Limite:
Female
/
Humans
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Male
Idioma:
En
Revista:
Int J Oral Maxillofac Surg
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article