Three-dimensional finite element analysis of thermal shock in a premolar with a composite resin MOD restoration.
A three-dimensional finite element model of a human premolar with a composite resin Class II MOD has been used to investigate the temperature changes and induced thermal stresses associated with the imbibing of a hot liquid. Regions of high tensile stress were revealed and their possible clinical significance with respect to microleakage and failure in the approximal region of the restoration are discussed.
Fenner
D N
DN
Department of Mechanical Engineering, King's College London, UK.
Robinson
P B
PB
Cheung
P M
PM
D001641:Bicuspid / Q000033:anatomy & histology* / Q000502:physiology*; D001696:Biomechanical Phenomena; D001698:Biomedical Engineering; D003188:Composite Resins / Q000009:adverse effects; D003731:Dental Caries / Q000628:therapy; D003793:Dental Restoration, Permanent / Q000009:adverse effects* / Q000379:methods; D020342:Finite Element Analysis; D006358:Hot Temperature / Q000009:adverse effects*; D006801:Humans; D008953:Models, Anatomic; D008954:Models, Biological; D013314:Stress, Mechanical; D013718:Tensile Strength
D003188:Composite Resins