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Fractographic Failure Analysis of a Broken Tooth Following Larnygoscopy

Published

Author(s)

Janet Quinn, L W. Schultheis

Abstract

ckground: A tooth broken subsequent to laryngoscopy was fractographically analyzed. The science of fractography involves examination of fracture surfaces to determine information such as failure causes, crack progressions, and stress configurations.Case description: Fractographic examination of a maxillary canine root fragment revealed step-wise crack progression, evidence of bruxism and the approximate location and direction of the applied critical force. A force applied to an available discarded tooth, coated and embedded to simulate in vivo conditions, supported the fractographic findings.Clinical Implications: This study shows that fractographic analysis can be successfully applied to human dentition, and uncovers bruxism as a potential significant factor in dental injury in intubated patients.
Citation
Journal of the American Dental Association

Keywords

bruxism, fractography, intubation, tooth fracture

Citation

Quinn, J. and Schultheis, L. (2008), Fractographic Failure Analysis of a Broken Tooth Following Larnygoscopy, Journal of the American Dental Association (Accessed February 25, 2024)
Created October 16, 2008