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Revista Estomatológica Herediana
versión impresa ISSN 1019-4355
Resumen
ORTIZ-CALDERON, Gabriela Isabel y GOMEZ-STELLA, Luis. Relevant aspects of tooth preparation for anterior porcelain veneers: A review. Rev. Estomatol. Herediana [online]. 2016, vol.26, n.2, pp.110-116. ISSN 1019-4355. http://dx.doi.org/10.20453/reh.v26i2.2873.
Due to the great success of porcelain veneers for the esthetic and functional rehabilitation of the patient in the upper anterior sector, it is important to know which type of preparation should be done because the palatal margin influences in the survival of these restorations and of the remaining tooth structure. The literature describes three types of preparation for anterior veneers, “window” type or intra enamel, in which the enamel preparation is limited only from 0.3 to 0.5 mm, the “feather” type or with incisal reduction, which has a mini incisal chamfer up to 1 mm, and the “overlap” type or incisal overlap that, in addition of the enamel and incisal reduce, it has a palatal chamfer, reaching a total incisal preparation of 2 mm. According to the reviewed articles, it is suggested that the most favorable preparation that allows a further rate of long-term survival is the “overlap” or incisal overlap type, because it facilitates the retention of the veneer and the distribution of oclusal forces. It is important to consider that the main purpose of every prosthetic treatment is the maintenance of the integrity of the remaining tooth structure in the mouth. For this reason, the anterior veneers are considered as an alternative to conservative treatment not only for aesthetic purposes, but also to restore the function.
Palabras clave : Dental veneers; tooth preparation.