Although 3D-printing is common in dentistry, the technique does not produce required quality for all target applications. Resin type, printing resolution, positioning, alignment, structure, and type number of support structures may influence surface roughness printed objects, this study investigates effects these variables. A stereolithographic data record was generated from a master model. Twelve processes were executed with stereolithography Desktop 3D Printer, including models aligned...

To identify potential risk factors for the development of jaw osteoradionecrosis (ORN) after 3D-conformal radiotherapy (3D-CRT) and intensity-modulated (IMRT) among patients with newly diagnosed head neck cancer.

Abstract Objective To evaluate the flexural strength and fatigue behavior of a novel 3D‐printed composite resin for definitive restorations. Materials Methods Fifty disc‐shaped specimens were manufactured from each nanohybrid (NHC), polymer‐infiltrated ceramic network (PICN), (3D) with CAD‐CAM technology. Biaxial ( σ in ) n = 30 per group) biaxial ff 20 measured using piston‐on‐three‐balls method, employing staircase approach 10 5 cycles. Weibull statistics, relative‐strength degradation...

ceramic veneers, crowns, and other types of restorations are often made using either the press heating technique or subtractive method. The advent lithography-based manufacturing (LCM) allows for such in an additive way. this concept paper describes first clinical experience application LCM lithium disilicate vivo classic veneers a patient with severe tooth wear. applied were analyzed terms their marginal fit metrology software (Geomagic Control X, 3D Systems). Furthermore, feasibility...

An increasing number of CAD/CAM (computer-aided design/computer-aided manufacturing) hybrid materials have been introduced to the dental market in recent years. In addition, for additive manufacturing (AM) are becoming more attractive digital dentistry. Studies on material microstructures using micro-computed tomography (µ-CT) combined with scanning electron microscopy (SEM) only available a limited extent so far. One three-dimensional- (3D-) printable (VarseoSmile Crown plus) and two...

Abstract Objectives The purpose of this study is to evaluate the bond strength different computer-aided design / manufacturing (CAD/CAM) hybrid ceramic materials following pretreatments. Methods A total 306 CAD/CAM material specimens were manufactured, n = 102 for each (VarseoSmile Crown plus [VSCP] by 3D-printing; Vita Enamic [VE] and Grandio Blocs [GB] milling). Each was randomly divided into six groups regarding pretreatment strategies: control, silane, sandblasting (50 μm aluminum oxide...

Abstract Background The aim of the present study was to evaluate recovery potential parotid glands after using either 3D-conformal-radiotherapy (3D-CRT) or intensity-modulated radiotherapy (IMRT) by sparing one single gland. Methods Between 06/2002 and 10/2008, 117 patients with head neck cancer were included in this prospective, non-randomised clinical study. All treated curative intent. Salivary gland function assessed measuring stimulated salivary flow at beginning, during end as well 1,...

ABSTRACT Objective To test the clinical application of LCM‐printed lithium disilicate veneers. Clinical Considerations A female patient with tooth wear was scanned intraoral scanner (Prime Scan, Dentsply Sirona). The six non‐prep veneers were designed (DentalCAD, Exocad) and printed from an LCM‐printer thickness 0.1–0.2 mm (CeraFab System S65 Medical, Lithoz GmbH). green parts after printing cleaned excess slurry debindered in a furnace (Nabertherm, Lilienthal) until 430°C dwell time 5 h to...

The current trend in denture adhesives is shifting toward zinc-free formulations due to the significant health concerns associated with zinc. Studies have focused on retention of these adhesives; however, there a dearth literature regarding their damping performance. This study analyzes impact oral cavity physiological parameters: temperature, pH, and swelling ratio mechanical properties zinc-stabilized examines role zinc plays influencing adhesive behavior. investigates how underlying cream...

The prevalence of pathological tooth wear and a reduced vertical dimension occlusion has increased, but prosthetic rehabilitation concepts have been invasive, time-consuming, expensive. How affordable, esthetic, less invasive treatment will perform remains unclear. purpose this proof-of-concept clinical study was to evaluate the behavior 3-dimensionally (3D) printed, minimally restorations fabricated from ceramic- reinforced composite resin material after 24 months in function. included 28...

Abstract Purpose To evaluate the survival and success rates of a novel two-piece zirconia implant system restored with screw-retained glass–ceramic crowns over 12 months, including assessment bone levels, soft tissue parameters, patient-reported outcome measures. Methods Twenty-four patients received single implants (CERALOG ® Hexalobe) in healed sites. After 6-month healing period, provisional on PEKK temporary abutments, followed by definitive lithium disilicate (IPS e.max Press)...

Abstract Purpose This study aimed to assess the accuracy of implant placement through three-dimensional planning and fully guided insertion, comparing outcomes between undergraduate postgraduate surgeons. Methods Thirty-eight patients requiring 42 implants in posterior single-tooth gaps were enrolled from University Clinic for Prosthodontics at Martin Luther Halle Wittenberg Department Prosthodontics, Geriatric Dentistry, Craniomandibular Disorders Charité Medicine, Berlin. Twenty-two placed...

Abstract The digital fabrication of dental restorations on implants has become a standard procedure during the last decade. Avoiding changing abutments prosthetic treatment been shown to be superior traditional protocol. presented concept for implant‐supported single crowns describes approach without physical model from implant placement final delivery in two appointments. A 54‐year‐old man was provided with single‐tooth his left mandibular first molar. Before wound closure, position...