The influence of saliva pH value on the retention and durability of bar-clip attachments
The Journal of Advanced Prosthodontics
;
: 32-38, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-220556
ABSTRACT
PURPOSE:
The aim of this study was to compare the durability and retention of 4 types of attachments placed over computer aided design/computer aided manufacturing (CAD/CAM) titanium bars when subjected to different pH conditions. MATERIALS ANDMETHODS:
Four commercially available attachments were investigated Hader Yellow, Hader Red, Ackerman Gold and Ackerman Stainless Steel. These attachments and Ackerman CAD/CAM titanium bars were placed in 2 vessels containing different artificial saliva solutions (pH 7/pH 4) at 37degrees C for one month to simulate corrosion conditions, and they were then subjected to mechanical testing (5400 cycles of insertion and removal).RESULTS:
The results revealed that there were significant differences in the average values of insertion/removal force due to the pH (F (1, 24)=9.207, P<.05) and the type of attachment (F (3, 24)=11.742, P<.05).CONCLUSION:
More acidic pH values were found to have a negative influence on the retention capacity of the attachments.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Saliva
/
Saliva Artificial
/
Aço Inoxidável
/
Titânio
/
Implantes Dentários
/
Corrosão
/
Revestimento de Dentadura
/
Concentração de Íons de Hidrogênio
Idioma:
Inglês
Revista:
The Journal of Advanced Prosthodontics
Ano de publicação:
2015
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS