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Chipping of veneering ceramic on a lithium disilicate anterior single crown: Description of repair method and a fractographic failure analysis.
Garbelotto, Luis G D; Fukushima, Karen A; Özcan, Mutlu; Cesar, Paulo F; Volpato, Claudia A M.
Afiliação
  • Garbelotto LGD; Zenith Specialized Teaching Florianópolis, Florianópolis, Santa Catarina, Brazil.
  • Fukushima KA; Department of Dentistry, Ibirapuera University, São Paulo, São Paulo, Brazil.
  • Özcan M; University of Zurich, Dental Materials Unit, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, Zurich, Switzerland.
  • Cesar PF; Department of Biomaterials and Oral Biology, São Paulo University, São Paulo, São Paulo, Brazil.
  • Volpato CAM; Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
J Esthet Restor Dent ; 31(4): 299-303, 2019 07.
Article em En | MEDLINE | ID: mdl-30912240
OBJECTIVE: This article presents a retrospective analysis of an anterior single crown that showed chipping of the veneering ceramic, the clinical stages of intraoral repair made in composite resin, and fractographic analysis of the causes of failure. CLINICAL CONSIDERATIONS: The ceramic chipping occurred in the incisal and labial surfaces of the crown, 1 year after installation. Clinical examination revealed the presence of occlusal interference, which was probably responsible for chipping. Vinyl-polysiloxane impression was made from the patient, and epoxy replica was produced. The replica was gold coated and inspected under the optical microscopy and scanning electron microscope (SEM) for descriptive fractography. Optical microscopy and SEM images showed that chipping initiated at the incisal edge, where it is possible to note an area of damage accumulation. At the labial surface, multiple arrest lines with their convex sides facing the incisal edge were observed. The fractured area was repaired intraorally with composite resin, and the patient's occlusion was checked and monitored. CONCLUSION: According to the fractographic analysis, occlusal interference was related to ceramic chipping in the incisal edge. Intraoral repair technique with composite resin was indicated for this moderate chipping. CLINICAL SIGNIFICANCE: Retrieval analysis of chipping ceramic delivers better understanding of the failure origin and could prevent future failures. Intraoral repair is a practical and conservative technique and may be performed in a single clinical session without requiring the removal of prosthesis.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Falha de Restauração Dentária / Facetas Dentárias Tipo de estudo: Observational_studies Limite: Humans Idioma: En Revista: J Esthet Restor Dent Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Falha de Restauração Dentária / Facetas Dentárias Tipo de estudo: Observational_studies Limite: Humans Idioma: En Revista: J Esthet Restor Dent Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido