Impact of implant thread design on insertion torque and osseointegration: a preclinical model
Med. oral patol. oral cir. bucal (Internet)
; 28(1): e48-e55, ene. 2023. ilus, graf
Artigo
em Espanhol
| IBECS
| ID: ibc-214883
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Background:
Successful osseointegration of endosteal dental implants has been attributed to implant design, including the macro-, micro- and nano- geometric properties. Based on current literature pertaining to implant design, the resultant cellular and bone healing response is unknown when the thread thickness of the implants is increased, resulting in an increased contact area in implants designed with healing chambers. The aim of this study was to evaluate the effect of two implant designs with different thread profiles on the osseointegration parameters and implant stability at 3- and 6-weeks in vivo using a well-established preclinical dog model.Material andmethods:
A total of 48 type V Ti alloy implants were divided in two groups according to their thread design (D1= +0.1x/mm and D2= +0.15x/mm) and placed in an interpolated fashion into the radii of six beagles. Insertion torque was measured at time of placement, radii were extracted for histological processing following 3- and 6-week healing intervals. Histologic and histomorphometric analyses were performed in terms of bone to implant contact (%BIC) and bone area fraction occupancy within implant threads (%BAFO). Statistical analyses were performed through a linear mixed model with fixed factors of time and implant thread design.Results:
Surface roughness analysis demonstrated no significant differences in Sa and Sq between D1 and D2 implant designs, which confirmed that both implant designs were homogenous except for their respective thread profiles. For insertion torque, statistically significant lower values were recorded for D1 in comparison to D2 (59.6 ± 11.1 and 78.9 ± 10.1 N⋅cm, respectively). Furthermore, there were no significant differences with respect to histological analysis and histomorphometric parameters, between D1 and D2 at both time points.(AU)
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Implantes Dentários
/
Osseointegração
Limite:
Animais
Idioma:
Espanhol
Revista:
Med. oral patol. oral cir. bucal (Internet)
Ano de publicação:
2023
Tipo de documento:
Artigo
Instituição/País de afiliação:
New York University/USA
/
University of São Paulo - Bauru School of Dentistry/Brazil