Effect of abutment angulation in the retention and durability of three overdenture attachment systems: An in vitro study
The Journal of Advanced Prosthodontics
;
: 21-29, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-211470
ABSTRACT
PURPOSE:
This in vitro study investigated and compared the durability and retention of three types of attachments. MATERIALS ANDMETHODS:
Three commercially available attachments were investigated Clix(R), Dalbo-Plus(R) and Locator(R). In total, 72 samples of these attachments were placed in the acrylic resin forms and subjected to mechanical testing (5400 cycles of insertion and removal) over the respective ball or Locator abutments immersed in artificial saliva at pH 7 and 37degrees C. The abutments were placed at angulations of 0degrees, 10degrees and 20degrees. The retention force was recorded at the beginning and after 540, 1080, 2160, 3240, 4320 and 5400 insertion-removal cycles.RESULTS:
The results revealed that there were significant differences in the average values of the insertion/removal force due to angulation (F (2.48) = 343619, P<.05) and the type of attachment (F (7.48) = 23.220, P<.05).CONCLUSION:
Greater angulation of the abutments was found to influence the retention capacity of the attachments, and the fatigue test simulating 5 years of denture insertion and removal did not produce wear in the metal abutments.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Saliva Artificial
/
Implantes Dentários
/
Dentaduras
/
Revestimento de Dentadura
/
Fadiga
/
Concentração de Íons de Hidrogênio
Idioma:
Inglês
Revista:
The Journal of Advanced Prosthodontics
Ano de publicação:
2016
Tipo de documento:
Artigo
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