Recognition and prevention of failures in clinical dentistry. Aesthetic dental materials--posterior.
Despite the widespread use of posterior composite resins and the availability of porcelain and composite resin inlays to restore posterior teeth, clinical researchers express caution regarding their use. Two main concerns include: the technique sensitive nature of the procedures involved and limitations in the performance of these restorations due to the physical properties of the materials. Composites are prone to wear, fracture and a lack of marginal seal; whilst porcelain is brittle, difficult to manipulate and has the ability to wear opposing enamel. Longevity of the newer systems has not yet been determined and as such they should be regarded as experimental. Patients who request these restorations need to be provided with a thorough explanation of the advantages and disadvantages of each type of restoration; following this, careful clinical judgment and conservative use of these materials is recommended for optimum results.
Martin
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FE
Department of Operative Dentistry, University of Sydney.
D001641:Bicuspid; D003188:Composite Resins; D003776:Dental Porcelain; D003793:Dental Restoration, Permanent; D006801:Humans; D007284:Inlays; D008963:Molar; D017211:Treatment Failure; D016896:Treatment Outcome
D003188:Composite Resins; D003776:Dental Porcelain