Long-term effects of titanium-base abutments on peri-implant health: A 5-year randomised controlled trial.
Int J Oral Implantol (Berl)
; 15(2): 167-179, 2022 May 13.
Article
en En
| MEDLINE
| ID: mdl-35546725
ABSTRACT
PURPOSE:
Titanium bases are used frequently in daily practice for bonding to CAD/CAM abutments or crowns. Due to intimate contact between the adhesive gap of the titanium-base abutment and the peri-implant bone, the physical and chemical characteristics of the bonding material, or the gap itself, may affect peri-implant inflammatory reactions. The present study therefore aimed to examine the long-term effects of individualised abutments bonded to titanium bases on peri-implant health. MATERIALS ANDMETHODS:
A total of 24 patients, each with one test and one control abutment, participated in the present prospective, single-blind, randomised controlled clinical trial. The test abutments were CAD/CAM titanium abutments bonded to titanium bases. As the control abutments were individualised, one-piece CAD/CAM titanium abutments were used. Clinical and radiographic parameters were assessed at abutment insertion and then on a yearly basis over the following 5 years.RESULTS:
No significant differences in marginal bone level were observed between the titanium-base and one-piece abutments at any of the follow-up time points; however, when intragroup marginal bone levels were compared to the baseline values, significant differences were found at several follow-up time points. Intergroup differences were only found to be significant for pocket depth at the 4- (P = 0.006) and 5-year follow-ups (P = 0.024), favouring titanium-base abutments.CONCLUSIONS:
Within the limitations of the present study, it appears that the peri-implant tissues of this specific patient cohort responded to titanium-base abutments in a rather similar manner to one-piece abutments over a 5-year period; however, no definitive conclusions can be drawn due to the low power of the present study.Palabras clave
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Titanio
/
Implantes Dentales
Tipo de estudio:
Clinical_trials
/
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
Int J Oral Implantol (Berl)
Año:
2022
Tipo del documento:
Article