Influence of anatomic reference on the buccal contour of prosthetic crowns
Braz. oral res
;
23(3): 230-235, 2009. tab
Artigo
em Inglês
| LILACS
| ID: lil-530257
ABSTRACT
During clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using the indirect laminate veneer technique. First, the DPTs confected the veneers based on a model obtained from the upper arch of a dental dummy, containing a replica of an upper left canine with a prosthetic preparation for a laminate veneer. Then, the same DPTs received other identical models, now with the replica of the upper left canine with no preparation, to be used as an anatomical reference for confecting the laminate veneers. The laminate veneers were then bonded to the plaster models and had their buccal contour individually measured. Measurements were also made of the buccal contour of the reference canine. The data were analyzed by ANOVA and the t-test (p = 0.05). Results showed 100 percent of buccal overcontour when the laminate veneers were compared to the reference canine, regardless of which DPT confected the veneer and regardless of using or not the anatomical reference. The DPTs who participated in the present study were unable to acomplish a faithful anatomical reproduction of the buccal contour, creating an overcontour in all samples. This situation may be responsible for increasing the probability of periodontal and esthetic harm in clinical practice.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Técnica de Moldagem Odontológica
/
Planejamento de Prótese Dentária
/
Coroas
/
Dente Canino
/
Facetas Dentárias
Tipo de estudo:
Ensaio Clínico Controlado
/
Estudos de avaliação
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2009
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
University of Taubaté/BR
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