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Fracture resistance of CAD/CAM milled versus direct hand-made interim laminate veneers.
Abuhammoud, Salahaldeen; Emtier, Banan; Fu, Chin-Chuan; Rojas-Rueda, Silvia; Jurado, Carlos A; Afrashtehfar, Kelvin I.
Afiliación
  • Abuhammoud S; Department of Prosthodontics, University of Iowa College of Dentistry and Dental Clinics, Iowa City, IA, USA.
  • Emtier B; University of Iowa College of Dentistry and Dental Clinics, Iowa City, IA, USA.
  • Fu CC; Department of Restorative Sciences, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA.
  • Rojas-Rueda S; Division of Biomaterials, Department of Clinical and Community Sciences, School of Dentistry, University of Alabama Birmingham, Birmingham, AL, USA.
  • Jurado CA; School of Dentistry, Pontifical Javerian University, Bogota, Colombia.
  • Afrashtehfar KI; Division of Operative Dentistry, Department of General Dentistry, University of Tennesse Health Science Center College of Dentistry, Memphis, TN, USA.
Saudi Dent J ; 36(6): 920-925, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38883892
ABSTRACT

Background:

Comparative studies of interim veneer restorations crafted using subtractive computer-aided manufacturing (s-CAM) milling technology and traditional direct hand-made approaches are needed.

Purpose:

This comparative in vitro study evaluated the fracture resistance of two types of provisional veneer restorations for maxillary central incisors milled (s-CAM) and traditional direct hand-made bis-acryl veneers. Materials and

methods:

Fifty maxillary right central incisor veneers (25 specimens per group) were fabricated and divided according to the fabrication

method:

(1) s-CAM milled (Structure CAD, VOCO Dental); and (2) hand-made (Protemp Plus, 3M). The restorations were cemented onto 3D-printed resin dies using temporary cement and subjected to 1000 cycles of thermal cycling between 5° and 55 °C. These restorations subsequently were subjected to compressive loading until fracture occurred. Images of the fractured samples were captured using a scanning electron microscope (SEM). Statistical analysis was performed using the one-way ANOVA test and the Mann-Whitney U test.

Results:

Significant differences (p < 0.001) in the fracture resistance were observed between the two groups. s-CAM milled interim veneers displayed higher fracture resistance values (439.60 ± 26 N) compared to the traditional method (149.15 ± 10 N).

Conclusion:

The manufacturing method significantly influences the fracture resistance of interim veneer restorations. s-CAM interim laminate veneer restorations for maxillary central incisors exhibit a fracture resistance superior to that of the traditional method using bis-acryl.Clinical relevanceClinicians should consider CAD/CAM milled veneers for scenarios demanding long-term interim restoration and the withstanding of high occlusal forces.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Saudi Dent J Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Arabia Saudita
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Saudi Dent J Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Arabia Saudita