Elasticity of alveolar bone near dental implant-bone interfaces after one month's healing.
J Biomech
; 36(8): 1209-14, 2003 Aug.
Article
em En
| MEDLINE
| ID: mdl-12831748
ABSTRACT
Information is scarce about Young's modulus of healing bone surrounding an implant. The purpose of this preliminary study is to quantify elastic properties of pig alveolar bone that has healed for 1 month around titanium threaded dental implants, using the nanoindentation method. Two 2-year-old Sinclair miniswine were used for the study. Nanoindentation tests perpendicular to the bucco-lingual cross section were performed on harvested implant-bone blocks using the Hysitron TriboScope III. Nomarski differential interference contrast microscopy was used to identify pyramidal indentation measurements that were from bone. Reduced moduli, averaged for all anatomical regions, were found to start low (6.17 GPa) at the interface and gradually increase (slope=0.014) to a distance of 150 microm (7.89 GPa) from the implant surface, and then flatten to a slope of 0.001 from 150 to 1500 microm (10.13 GPa). Mean reduced modulus and its relationship to distance did not differ significantly by anatomic location (e.g., coronal, middle, and apical third; P>/=0.28 for all relevant tests) at 1 month after implantation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dente Pré-Molar
/
Implantes Dentários
/
Remodelação Óssea
/
Processo Alveolar
/
Testes de Dureza
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
J Biomech
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Estados Unidos