title: An elementary study of deformation of molar teeth during amalgam restorative procedures.
abstract: A technique using an optical comparator was employed to examine the dimensional changes resulting from cavity preparation, application of the matrix and packing with amalgam in three extracted molar teeth. The changes have been reported and the nature of the change discussed. A modification in the use of the matrix and amalgam packing technique is suggested.
mesh_terms: D003723:Dental Amalgam; D003737:Dental Cavity Preparation; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis / Q000295:instrumentation*; D006801:Humans; D066298:In Vitro Techniques; D008434:Matrix Bands; D008963:Molar / Q000601:surgery*
chemical_list: D003723:Dental Amalgam