Comparative analysis of different precision retainer systems (Part 1)
Keywords:
Prosthesis, Partial, Removable, Attachment, Retention, TractionAbstract
The presence of a free end a removable partial dentures involves a major problem in the clinic. In fact it is known that there is difficulty in treating multiplying by 2.5 the risk of complications. The gaps without posterior abutment are difficult to restore later, require a support tooth and mucosa.The oral mucosa and the ligament periodontal of the abutments teeth respond differently to the loads. This difference in behavior of teeth and mucosa is what has led to the design of removable partial dentures to be rigid or resilient characteristics. The purpose of this study was to evaluate the retention of various types of attachments subjected to traction. On this experimental work were analyzed three extracoronaries precision attachments to determine and compare their behavior in bilateral distal toothless maxilla (Kennedy Class I). The systems were Rod attachment, Strategy and Anker System. For the realization of the various tests, it was used three experimental models partially toothless Class I Kennedy maxilla. These models were used to determine the retention capacity of each type of attachment.The results showed that the traction, these behaviors differ in the maximum load reached; being Anker System (p=0,0030) remains the largest tensil traction followed by the Rod attachment and then Strategy.References
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