The influence of force direction on the fracture pattern and fracture resistance of canine teeth in dogs

Stephanie Goldschmidt, Catherine Zimmerman, Caitlyn Collins, Scott Hetzel, Heidi Lynn Ploeg, Jason W. Soukup

Research output: Contribution to journalArticlepeer-review

Abstract

Biomechanical studies of the elongated canine tooth of animals are few, and thus our understanding of mechanical and physical properties of animal teeth is limited. The objective of the present study was to evaluate the influence of force direction on fracture resistance and fracture pattern of canine teeth in an ex vivo dog cadaver model. Forty-five extracted canine teeth from laboratory beagle dogs were standardized by hard tissue volume and randomly distributed among 3 force direction groups. The teeth were secured within a universal testing machine and a load was applied at different directions based on testing group. The maximum force to fracture and the fracture pattern classification were recorded for each tooth. After correcting for hard tissue crosssectional area in a multivariate analysis, no significant difference in the amount of force required for fracture was apparent between the different force direction groups. However, the influence of force direction on fracture pattern was significant. The results of this study may allow the clinician to educate clients on possible causal force directions in clinically fractured teeth and, thus, help prevent any contributing behavior in the future.

Original languageEnglish (US)
Pages (from-to)8-17
Number of pages10
JournalJournal of Veterinary Dentistry
Volume34
Issue number1
DOIs
StatePublished - Mar 2017

Keywords

  • Canine teeth
  • Dental trauma
  • Dogs
  • Ex vivo
  • Tooth fracture patterns

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