Impact of abutment microstructure and insertion depth on crestal bone changes at nonsubmerged titanium implants with platform switch.
Clin Oral Implants Res
; 26(3): 287-92, 2015 Mar.
Article
em En
| MEDLINE
| ID: mdl-25175742
ABSTRACT
OBJECTIVES:
To assess the impact of microgrooved abutments and the insertion depth on crestal bone changes at titanium implants with platform switch. MATERIALS ANDMETHODS:
A total of n = 3 titanium implants (conical abutment connection) were inserted in each hemimandible of n = 6 foxhounds with the implant shoulder (IS) located at either epicrestal, supracrestal (+1 mm), or subcrestal (-1 mm) positions and randomly (split-mouth design) connected with machined or partially microgrooved healing abutments. At 20 weeks, tissue biopsies were processed for histological (primaryoutcome:
net bone loss - NET) analyses.RESULTS:
Subcrestal positioning of IS tended to be associated with higher mean NET values (mm) at both machined (subcrestal [-0.72 ± 0.32] > epicrestal [-0.34 ± 0.21] > supracrestal [+0.20 ± 0.64]) and microgrooved (subcrestal [-0.48 ± 0.25] > epicrestal [-0.13 ± 0.54] > supracrestal [+0.33 ± 0.58]) abutments. However, these differences failed to reach statistical significance.CONCLUSIONS:
The insertion depth may have a direct influence on crestal bone-level changes at both types of abutments investigated.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Implantes Dentários
/
Dente Suporte
/
Implantação Dentária Endóssea
/
Projeto do Implante Dentário-Pivô
Limite:
Animals
Idioma:
En
Revista:
Clin Oral Implants Res
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Alemanha