Failure modes of Y-TZP abutments with external hex implant-abutment connection determined by fractographic analysis
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- 作者：Mariana de Almeida Basí ; lioa ; mariana_basilio@yahoo.com.br" class="auth_mail" title="E-mail the corresponding author ; Juliana Aparecida Delbena ; ju.delben@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Paulo Francisco Cesarb ; paulofc@usp.br" class="auth_mail" title="E-mail the corresponding author ; Amin Sami Rizkallac ; arizkalla@eng.uwo.ca" class="auth_mail" title="E-mail the corresponding author ; Gildo Coelho Santos Juniord ; gildo.santos@schulich.uwo.ca" class="auth_mail" title="E-mail the corresponding author ; Joã ; o Neudenir Arioli Filhoa ; arioli@foar.unesp.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Fractography ; Failure analysis ; Implant abutment ; Zirconia ; Dental ceramic
- 刊名：Journal of the Mechanical Behavior of Biomedical Materials
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：60
- 期：Complete
- 页码：187-194
- 全文大小：10428 K
文摘
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The predominant fracture pattern for Y-TZP abutment was at the connecting region.
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Discriminatory landmarks established the reasons why the fracture pattern occurred.
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Failure started where Y-TZP abutment was in contact with the retention screw edges.
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Present findings indicated that the screw head should have a rounded-edge design.
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Present findings may also be used as reference for further fractographic analysis.