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Influence of fabrication method on the marginal fit of temporary restorations.
Rodrigues, Thaís Cristina Mendes; Resende, Caio Cesar Dias; Moura, Guilherme Faria; Santos, Fábio Henrique de Paulo Costa; Mendonça, Gustavo; Zancope, Karla; Neves, Flávio Domingues.
Afiliación
  • Rodrigues TCM; Private practice. Uberlândia, MG, Brazil.
  • Resende CCD; Centro Universitário do Triângulo - Unitri, Department of Implantology, Uberlândia, MG, Brazil.
  • Moura GF; Medical University of South Carolina, Department of Reconstructive and Rehabilitation Science, Charleston, SC, USA.
  • Santos FHPC; Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Occlusion, Fixed Prosthesis and Dental Materials, Uberlândia, MG, Brazil.
  • Mendonça G; Virginia Commonwealth University, School of Dentistry, Department of General Practice, Richmond, VA, USA.
  • Zancope K; Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Occlusion, Fixed Prosthesis and Dental Materials, Uberlândia, MG, Brazil.
  • Neves FD; Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Occlusion, Fixed Prosthesis and Dental Materials, Uberlândia, MG, Brazil.
Braz Oral Res ; 38: e063, 2024.
Article en En | MEDLINE | ID: mdl-39016369
ABSTRACT
Computer-aided manufacturing (CAM) technology allows the use of different manufacturing techniques. This in vitro study aimed to evaluate the marginal fit of temporary restorations manufactured using conventional chairside methods, milling, and three-dimensional printing. Fifteen 3-element temporary restorations specimens were produced and categorized into three groups non-digital, obtained using the conventional chairside method (GC); milled (GM); and three-dimensionally printed (GP). Marginal fit was assessed using scanning electron microscopy (SEM) performed under two conditions one with only the central screw tightened, and the other with all three screws tightened. Horizontal misfit values were categorized as over-, equal-, and under-extended and qualitatively analyzed. Statistical analysis was performed using the Tukey-Kramer test (α=0.05). In the vertical assessment, three-dimensionally printed restorations demonstrated greater misfit than restorations obtained by milling and the conventional chairside method (P<0.05). In the horizontal assessment, the misfit in the GP group was significantly higher than that in the GM and GC groups. Restorations obtained using the conventional chairside method and milled provisional restorations showed more favorable results than three-dimensionally printed restorations.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Propiedades de Superficie / Ensayo de Materiales / Microscopía Electrónica de Rastreo / Diseño de Prótesis Dental / Diseño Asistido por Computadora / Adaptación Marginal Dental / Restauración Dental Provisional / Impresión Tridimensional Límite: Humans Idioma: En Revista: Braz Oral Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Propiedades de Superficie / Ensayo de Materiales / Microscopía Electrónica de Rastreo / Diseño de Prótesis Dental / Diseño Asistido por Computadora / Adaptación Marginal Dental / Restauración Dental Provisional / Impresión Tridimensional Límite: Humans Idioma: En Revista: Braz Oral Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil