Replacement Implant-Retained Ear Prosthesis Using Semi-Digital Workflow: A Case Report.

Defects in the facial region can be treated by maxillofacial prostheses however, fabrication of the prosthesis is a time-consuming process. The short lifetime of silicone material due to inherent deterioration has stimulated a search for more practical methods. This case report involves a semi-digital workflow for replacement of an ear prosthesis.

A severely damaged premolar tooth restored with coronal pulpotomy and a 3D-printed endocrown.

Advances in computer-aided design/computer-aided manufacturing (CAD-CAM) technologies and adhesives have enabled the use of endocrowns as an effective and conservative treatment option for restoring endodontically treated teeth in pediatric populations. Thus, this case report presents the treatment of a severely damaged premolar tooth with coronal pulpotomy and a 3D-printed endocrown restoration. A 13-year-old patient with pain due to profound caries in the left maxillary second premolar tooth was referred to the Department of Pediatric Dentistry at Gazi University in Ankara, Türkiye.

Effects of ceramic type, connector dimension, and thermomechanical-aging on the fracture resistance and fit of CAD-CAM produced inlay-retained fixed partial dentures.

The purpose of the present study is to evaluate the fracture resistance and the fit of CAD-CAM produced inlay-retained fixed partial dentures. Eighteen experimental groups were generated according to different CAD-CAM ceramic materials (zirconia, lithium disilicate, and zirconia-reinforced lithium silicate), different connector dimensions (12, 14, and 16 mm), and application of thermomechanical-aging (1,200,000 cycles of cyclic loading with simultaneous thermal cycling). Gap values of thermomechanically-aged groups were measured by using periapical radiographs.

Using a smartphone three dimensional scanning application (Polycam) to three dimensionally print an ear cast: A technique.

This technique describes the use of a smartphone application for scanning an ear for 3-dimensional (3D) printing of an auricular prosthesis cast. The intact ear was scanned by using a smartphone and a 3D scan application (Polycam). The standard tessellation language (STL) file of the 3D data was used to produce a mirror image of the ear, which was sent to the 3D printing center where a resin cast was printed.

Effect of plasma treatment on the peel bond strength between maxillofacial silicones and resins.

The study aimed to investigate the effects of surface treatments, including plasma, on the peel bond strength between two maxillofacial silicones and two resins with and without thermocycling. Forty-eight experimental groups (n=10) were generated incorporating the two different resins (auto-polymerizing acrylic resin and light-curing urethane dimethacrylate resin [AR and LR, respectively]), two different silicones (M511 and Z004), aging (thermocycled/no thermocycling), and six different surface treatments, including polishing, grinding, polishing+argon plasma, polishing+oxygen plasma, grinding+argon plasma, and grinding+oxygen plasma. Surface topography of a specimen from each surface treatment group was examined by atomic force microscopy.