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Direct composite resin restorations of the anterior single tooth: clinical implications and practical applications.

Modern technology has continued to improve composite resins to the point where they are commonly used in restorative dentistry. In spite of some drawbacks, such as polymerization shrinkage, incomplete conversion and cross-linking, and undesirable water sorption, the expected time of service of these restorations is extended continuously due to physical and chemical improvements. The improved handling and excellent optical properties of the latest generation of composite resins can provide the appearance of natural dentition. Sophisticated effects can be obtained through the use of direct intraoral applications of stratification techniques. This article discusses common indications for direct restoration of anterior teeth and their treatment in order to be biocompatible with the adjacent hard and soft tissues and to meet the requirements of form, function, and phonetics.