Due to the vast number of initial requirements that must be met, having a large number of anatomically prepared matrices at one's disposal is necessary. The anatomical shape of the teeth (rectangular, triangular, oval), the kind (canines, laterals, central incisors), the surface location (lateral, mesial), and the distance between the teeth all influence the shape of each contact region of maxillary anterior teeth (diastemas, crowding, loss of interproximal space due to poor restorations). When repairing teeth in a clinical context, the size of anterior PCAs should be considered. When contacting surfaces have ideal curvatures, contact points appear, which is common in young patients with newly erupted teeth. According to research, PCAs rather than contact points are detected between maxillary anterior teeth.
The words contact point and contact area have been used interchangeably in the literature.
The restoration of a functionally and morphologically correct tooth shape and proximal contact areas (PCAs) allows the formation of harmonious interdental papillae, prevents food lodgment, and aids in the stabilization of the dental arches by maintaining all the teeth in positive contact with each other. Because of their simplicity and versatility, real anatomical matrix systems, as well as the injectable molding technique and others, have lately brought aesthetic restorations within everyone's reach, allowing the dentist to capture the final form and volume of the material utilized. Various matrices and approaches have been documented to aid practitioners in producing predictable results, such as the use of a silicone index alone or in combination with Teflon tape, through Mylar strip, anterior transparent matrix, and anterior/posterior metallic matrices. Various approaches can assist the dentist in correctly restoring a tight, well-contoured proximal contact surface. Achieving proper contour and tight proximal contacts represents one of the most challenging aspects of this procedure .
Successful placement of direct composite restorations, particularly in the aesthetic zone, requires a comprehensive understanding of dental anatomy, including knowledge of color and material science.
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