The effect of antagonist tooth contact on the biomechanical response of custom-fitted mouthguards

Crisnicaw Veríssimo, Aline Aredes Bicalho, Priscilla Barbosa Ferreira Soares, Daranee Versluis, Antheunis Versluis, Carlos J. Soares

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Background/Aim: Custom-fitted mouthguards are devices used to prevent dental injuries. The aim of this study was to verify the influence of the antagonist contact on the stresses and strains of the anterior teeth, shock absorption and displacement of EVA custom-fitted mouthguards during a horizontal impact. Materials and methods: Finite element models of human maxillary central incisors with and without a mouthguard for different occlusion conditions (with and without antagonist contact) were created based on tomography. A nonlinear dynamic impact analysis using the single-step Houbolt method was performed in which a rigid object hit the model at 1 m s−1. Strain and stress were evaluated by means of Von Mises and Critical modified Von Mises criterion and shock absorption during impact were calculated as well as the mouthguard displacement. Results: The model without mouthguard and without antagonist contact showed the highest stress and strain values at the enamel and dentin in the tooth crown on impact compared to the model without mouthguard and with antagonist contact. Mouthguard presence reduced the stress and strain values regardless of the occlusion condition. The mouthguard displacement decreased with the mandibular antagonist contact. Conclusions: Mouthguards are efficient at decreasing the stress and strain values on the tooth in front of an impact reaching more than 90% of shock absorption. A mouthguard with balanced occlusion and maximum number of contacts with mandibular anterior teeth should be considered because it reduces mouthguard displacement.

Original languageEnglish (US)
Pages (from-to)57-63
Number of pages7
JournalDental Traumatology
Volume33
Issue number1
DOIs
StatePublished - Feb 1 2017

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Shock
Tooth
Tooth Injuries
Extravehicular Activity
Tooth Crown
Nonlinear Dynamics
Dentin
Incisor
Dental Enamel
Tomography
Equipment and Supplies

All Science Journal Classification (ASJC) codes

  • Oral Surgery

Cite this

The effect of antagonist tooth contact on the biomechanical response of custom-fitted mouthguards. / Veríssimo, Crisnicaw; Bicalho, Aline Aredes; Soares, Priscilla Barbosa Ferreira; Versluis, Daranee; Versluis, Antheunis; Soares, Carlos J.

In: Dental Traumatology, Vol. 33, No. 1, 01.02.2017, p. 57-63.

Research output: Contribution to journalArticle

Veríssimo, Crisnicaw ; Bicalho, Aline Aredes ; Soares, Priscilla Barbosa Ferreira ; Versluis, Daranee ; Versluis, Antheunis ; Soares, Carlos J. / The effect of antagonist tooth contact on the biomechanical response of custom-fitted mouthguards. In: Dental Traumatology. 2017 ; Vol. 33, No. 1. pp. 57-63.
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