Drilling dimension effects in early stages of osseointegration and implant stability in a canine model
Med. oral patol. oral cir. bucal (Internet)
; 20(4): e471-e479, jul. 2015. ilus
Artigo
em Inglês
| IBECS
| ID: ibc-138975
Biblioteca responsável:
ES1.1
Localização: BNCS
ABSTRACT
BACKGROUND:
This study histologically evaluated two implant designs a classic thread design versus another specifically designed for healing chamber formation placed with two drilling protocols. MATERIAL ANDMETHODS:
Forty dental implants (4.1 mm diameter) with two different macrogeometries were inserted in the tibia of 10 Beagle dogs, and maximum insertion torque was recorded. Drilling techniques were until 3.75 mm (regular-group); and until 4.0 mm diameter (overdrilling-group) for both implant designs. At 2 and 4 weeks, samples were retrieved and processed for histomorphometric analysis. For torque and BIC (bone-to-implant contact) and BAFO (bone area fraction occupied), a general-linear model was employed including instrumentation technique and time in vivo as independent.RESULTS:
The insertion torque recorded for each implant design and drilling group significantly decreased as a function of increasing drilling diameter for both implant designs (p < 0.001). No significant differences were detected between implant designs for each drilling technique (p > 0.18). A significant increase in BIC was observed from 2 to 4 weeks for both implants placed with the overdrilling technique (p < 0.03) only, but not for those placed in the 3.75 mm drilling sites (p > 0.32).CONCLUSIONS:
Despite the differences between implant designs and drilling technique an intramembranous-like healing mode with newly formed woven bone prevailed
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Implantes Dentários
/
Osseointegração
/
Modelos Animais
Tipo de estudo:
Estudo de avaliação
/
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Med. oral patol. oral cir. bucal (Internet)
Ano de publicação:
2015
Tipo de documento:
Artigo
Instituição/País de afiliação:
Malmö University/Sweden
/
Federal University/Brazil
/
New York University/USA
/
University of Sao Paulo/Brazil