![]() The use of an intraoral scanner should be decided on the clinical situation and needs. Crowns fabricated on the subgingival finish line caused inaccurate marginal fit due to poor fabrication reproducibility of the marginal region. Intaglio surface trueness was significantly different in the marginal region, with the highest value in the subgingival location ( P < 0.05). The marginal and internal fit showed significant differences according to locations ( P < 0.05) the marginal fit showed the best results in the supragingival finish line ( P < 0.05). One-way analysis of variance and Tukey HSD test were performed for comparisons (α = 0.05). Intaglio surface trueness was evaluated using a 3D inspection software. Marginal and internal fit were evaluated with a silicone replica technique. Interim crowns were fabricated using a stereolithography three-dimensional (3D) printer (N = 16 per location). Crowns were designed based on the scanned area. The right maxillary first molar tooth preparation model was fabricated using a ceramic material and placed in four finish line locations (supragingival, equigingival, subgingival, and subgingival with a cord). doi: 10.1111/ study evaluated the marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation scanned at four finish line locations. CAD/CAM complete denture systems and physical properties: A review of the literature. in press.īaba N.Z., Goodacre B.J., Goodacre C.J., Müller F., Wagner S. Clinical evaluation of the fit of lithium disilicate crowns fabricated with three different CAD-CAM systems. Influence of thermomechanical aging on marginal gap of CAD-CAM and conventional interim restorations. Effect of finish line locations of tooth preparation on the accuracy of intraoral scanners. Marginal fit of CAD-CAM monolithic zirconia crowns fabricated by using cone beam computed tomography scans. Kale E., Cilli M., Özçelik T.B., Yilmaz B. In the manufacturing process of interim dental crowns, 3D printing technologies showed superior and uniform manufacturing accuracy than milling technology.ģD printing dental device digital dentistry interim dental crown milling trueness. In the milling group, there was a significant difference in trueness according to the location of the intaglio surface ( p < 0.001). There were significant differences in intaglio surface trueness between the three different fabrication technologies, and high trueness values were observed in the milling group ( p < 0.05). Statistical analysis was validated using one-way analysis of variance and Tukey HSD test (α = 0.05). The alignment and 3D comparison of CRM and CTM were performed based on the intaglio surface using a 3D inspection software program (Geomagic Control X). The fabricated interim dental crowns were obtained via 3D modeling of the intaglio surface using a laboratory scanner and designated as CAD test models (CTMs). Interim dental crowns were fabricated based on CRM using two types of 3D printer technologies (stereolithography apparatus and digital light processing) and one type of milling machine ( n = 15 per technology). Dental crown was designated and assigned as a computer-aided design (CAD) reference model (CRM). This study aimed to evaluate the intaglio surface trueness of interim dental crowns fabricated with three 3-dimensional (3D) printing and milling technologies. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |