This study evaluated the prevalence of signs and symptoms temporomandibular joint disorder (TMD) among patients with TMD symptoms.Between September 2011 December 2011, 243 consecutive (171 females, 72 males, mean age 41 years) who were referred to Department Prosthodontics, Faculty Dentistry, Karadeniz Technical University, Trabzon examined physically completed a questionnaire regarding age, gender, social status, general health, antidepressant drug usage, dental limited mouth opening, (TMJ)...

To quantify the impact of ambient lighting conditions on accuracy (trueness and precision) an intraoral scanner (IOS) when maxillary complete-arch right quadrant digital scans were performed in a patient.One complete dentate patient was selected. A arch vinyl polysiloxane impression obtained poured using Type IV dental stone. The working cast digitized laboratory (E4 Dental Scanner; 3Shape) reference standard tessellation language (STL file) obtained. Two groups created based extension...

To compare surface properties of 2 brands pre-polymerized resin blocks for complete dentures (CAD/CAM PMMA) to conventional heat-polymerized PMMA.A total 45 rectangular specimens (25 × 25 3 mm) were fabricated from PMMA (n = 15/group): AvaDent CAD/CAM PMMA, Tizian-Schütz Meliodent PMMA. Specimens examined wettability using the sessile drop method, roughness a digital contact profilometer, and microhardness Vickers hardness number. Statistical analysis was performed one-way ANOVA Tukey...

This study evaluated the effect of chairside and laboratory types surface conditioning methods on adhesion dual-cure resin cement with MDP functional monomer to zirconia ceramic after thermocycling. Disk-shaped (diameter: 10 mm, thickness: 2 mm) Y-TZP ceramics (Lava™, 3M ESPE) were used (N=40) finished wet 1200-grit silicon carbide abrasive paper. Specimens randomly divided into four experimental groups according following (n=10 per group): Group 1—Chairside airborne particle abrasion 50-μm...

Commercial pure titanium (cpTi) has been the material of choice in several disciplines dentistry due to its biocompatibility, resistance corrosion and mechanical properties. Despite a number favorable characteristics, cpTi as reconstruction oral implant shortcomings. This paper highlights current knowledge on properties, passive oxidation film formation, corrosion, surface activation, cell interactions, biofilm development, allergy, casting machining properties for better understanding...

To evaluate the accuracy of a digital impression system based on parallel confocal red laser technology, taking into consideration clinical parameters such as operator experience and angulation depth implants.A maxillary master model with six implants (located bilaterally in second molar, premolar, lateral incisor positions) was fitted polyether ether ketone scan bodies. One premolar implant placed 30 degrees mesial angulation; opposite positioned distal angulation. The were 2 or 4 mm...

This study tested whether the two-body wear of monolithic zirconia and their corresponding enamel antagonists was higher compared to alloy veneered zirconia.Cylindrical specimens (N = 36, n 6) were prepared out (A) (VZ), (B) glazed using a glaze ceramic (GZC), (C) spray (GZS), (D) manually polished (MAZ), (E) mechanically (MEZ) (F) base (control group, MA). Wear tests performed in chewing simulator (49 N, 1.7 Hz, 5°C/50°C) with antagonists. The analysis 3D profilometer before after 120,000,...

Purpose: The aim of this study was to evaluate the effect two surface conditioning methods on microtensile bond strength a resin cement three high-strength core ceramics: high alumina-based (In-Ceram Alumina, Procera AllCeram) and zirconia-reinforced (in-Ceram Zirconia) ceramics. Materials Methods: Ten blocks (5 x 6 8 mm) In-Ceram Alumina (AL), Zirconia (ZR), (PR) ceramics were fabricated according each manufacturer's instructions duplicated in composite. specimens assigned one following...

Abstract Background There is a scarce knowledge on the accuracy of intraoral digital impression systems for dental implants. Purpose The purpose this study to evaluate system considering clinical parameters. Materials and Methods A master model with six implants (27, 25, 22, 12, 15, 17) was fitted polyether ether ketone scan bodies. Implant no. 25 placed 30° mesial angulation in relation vertical plane ( y axis), implant 15 positioned distal angulation. 22 2 mm 4 below gingiva. Experienced n...

To evaluate the performance (accuracy and repeatability) factors affecting clinical of a recently released intraoral scanner based on active wavefront sampling technology.A single resin model an edentulous maxilla fitted with six implants inserted at various depths angulations was measured coordinated measuring machine (CMM) 3 to 5 μm, this acted as "true," or reference, values study. Six corresponding cylindrical PEEK scanbodies were then mounted onto implants, four calibrated observers...