Influence of implant-abutment connection structure on peri-implant bone level in a second molar: A 1-year randomized controlled trial
The Journal of Advanced Prosthodontics
;
: 147-154, 2019.
Artigo
em Inglês
| WPRIM
| ID: wpr-761410
ABSTRACT
PURPOSE:
This study aimed to evaluate the effect of two different implant-abutment connection structures with identical implant design on peri-implant bone level. MATERIALS ANDMETHODS:
This clinical study was a patient-blind randomized controlled trial following the CONSORT 2010 checklists. This trial was conducted in 24 patients recruited between March 2013 and July 2015. Implants with internal friction connection were compared to those with external hex connection. One implant for each patient was installed, replacing the second molar. Implant-supported crowns were delivered at four months after implant insertion. Standardized periapical radiographs were taken at prosthesis delivery (baseline), and one year after delivery. On the radiographs, distance from implant shoulder to first bone-to-implant contact (DIB) and peri-implant area were measured, which were the primary and secondary outcome, respectively.RESULTS:
Eleven external and eleven internal implants were analyzed. Mean changes of DIB from baseline to 1-year postloading were 0.59 (0.95) mm for the external and 0.01 (0.68) mm for the internal connection. Although no significant differences were found between the two groups, medium effect size was found in DIB between the connections (Cohen's d = 0.67).CONCLUSION:
Considering the effect size in DIB, this study suggested the possibility of the internal friction connection structure for more effective preservation of marginal bone.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Próteses e Implantes
/
Ombro
/
Perda do Osso Alveolar
/
Fricção
/
Coroas
/
Lista de Checagem
/
Projeto do Implante Dentário-Pivô
/
Estudo Clínico
/
Dente Molar
Tipo de estudo:
Ensaio Clínico Controlado
Limite:
Humanos
Idioma:
Inglês
Revista:
The Journal of Advanced Prosthodontics
Ano de publicação:
2019
Tipo de documento:
Artigo
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