Self-shearing retentive pins: a laboratory evaluation of pin channel penetration before shearing.

W. W. Barkmeier, R. L. Cooley

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Abstract

This laboratory study determined the depth reached by self-shearing pins in dentin pin channels. Pin channels were prepared with the self-limiting shoulder twist drill for each of the four systems tested. Mean channel depth reached for the various pin systems was: Stabilok (small), 2.31 mm; Stabilok (medium), 1.78 mm; Reten Pin, 1.40 mm; and TMS (Regular), 2.04 mm. A coparison was also made by calculating the mean percent of penetration in relation to the depth of prepared pin channel: Stabilok (small), 92.50%; Stabilok (medium), 63.62%; Reten Pin, 66.67%; and TMS (Regular) 81.75%.

Original languageEnglish (US)
Pages (from-to)476-479
Number of pages4
JournalJournal of the American Dental Association (1939)
Volume99
Issue number3
DOIs
StatePublished - Sep 1979
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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