In vitro wear of different material combinations of intracoronal precision attachments

Stefan Holst, Markus B. Blatz, Stephan Eitner, Manfred Wichmann

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Purpose: This study examined the retentive forces of intracoronal precision attachments after wear cycling. Materials and Methods: Three material combinations of an intracoronal cylindric T-attachment were tested. A total of 10,000 separating and joining movements were performed, and retentive forces were measured. Results: Components made of gold alloy performed significantly better (P = .002) than other materials. The average proportional loss of retention was 90% for titanium and 47% for gold alloy components. Conclusion: Cyclic loading of metal precision attachment components results in loss of retention, which can be fully compensated by reactivating internal screws in the patrices. Machined, high-noble gold alloys show less wear than other materials.

Original languageEnglish (US)
Pages (from-to)330-332
Number of pages3
JournalInternational Journal of Prosthodontics
Issue number4
StatePublished - Jul 1 2006

ASJC Scopus subject areas

  • Dentistry(all)


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