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Bite Marks: Physical Properties of Ring Adhesion to Skin—Phase 2

Authors

  • Sylvain Desranleau D.M.D.,

    1. Clinique Dentaire Desranleau Inc., 273 Boul. Laurier, Mont St. Hilaire, QC J3H 3N8, Canada.
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  • Robert B. J. Dorion D.D.S.

    1. Laboratoire des Sciences Judiciaires et de Médecine Légale, Ministère de la Sécurité Publique du Québec, Édifice Wilfrid-Derome, 1701 rue Parthenais, 12e étage, Montréal, QC H2K 3S7, Canada.
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  • Presented at the 62th Annual Meeting of the American Academy of Forensic Sciences in Seattle, February 21–27, 2010, in Seattle, WA.

Additional information and reprint requests:
Sylvain Desranleau, D.M.D.
Clinique Dentaire Desranleau Inc.
273 Boul. Laurier,
Mont St. Hilaire, QC J3H 3N8
Canada
E-mail: desranleaus@hotmail.com

Abstract

Abstract:  Bite Marks: This study demonstrated that surface wetness was the most influential factor affecting ring adhesion to skin. Also, chemical depilatories and shaving creams were to be avoided when cleaning the skin. The second phase of this research examines the tensile stress needed to rupture the bond between TAK® hydroplastic, three new cyanoacrylates, and pigskin with particular consideration for temperature variations. This study also considers solubility issues of different cyanoacrylates in 10% formalin. Finally, the Dorion Type V bitemark excision technique could significantly reduce the risks of tissue distortion when used in conjunction with the following methods and materials. The skin should be devoid of moisture, razor shaved, and cleaned with dishwashing detergent and 98.9% ethanol while avoiding the use of shaving creams and/or chemical depilatories where ring placement is anticipated. The use of unopened cyanoacrylate is encouraged with Permabond® as the cyanoacrylate of choice.

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