A self-designed instrument to evaluate cavosurface angle for class i amalgam cavity preparation: A learning aid

Ankit Arora, Shashi Acharya, Vasudev Ballal, Padmaja Sharma

Research output: Contribution to journalArticle


Fighting the controversies, amalgam, as a posterior restorative material has survived till date. The fate of amalgam restoration is determined by geometry of the cavity preparation and cavosurface angle is one integral part of the cavity, which decides the marginal characteristics of the restoration and health of the tooth. Low edge strength of amalgam highlights the importance of cavosurface angle. However, at the same time conservation of the tooth also should be considered. This article presents a self-designed instrument to evaluate and obtain a cavosurface angle close to 110. The design of the instrument also helps in evaluating parameters, such as depth of the cavity, undercut angle, and allows finishing of the buccal or lingual walls.

Original languageEnglish
Pages (from-to)253-256
Number of pages4
JournalJournal of Conservative Dentistry
Issue number3
Publication statusPublished - 01-07-2012


All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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