Dynamic Quantitative Imaging of the Masseter Muscles in Bruxism Patients with Myofascial Pain: Could It Be an Objective Biomarker?

We aimed to investigate whether the collaboration of shear wave elastosonography (SWE) and B-mode ultrasonography (US) could be offered as diagnostic tools to assess the presence, severity, and progress of bruxism, as well as a biomarker for the effectiveness of treatment in daily clinical practice. The study was designed as a quantitative evaluation of the masseter muscles (MMs) of the clinically diagnosed bruxism patients suffering from myofascial pain and MMs of the healthy individuals. Clinical examinations were made according to the diagnostic criteria for temporomandibular disorders (DC/TMD), and pain was assessed using a visual analog scale (VAS).

Wear evaluation of CAD-CAM dental ceramic materials by chewing simulation.

Purpose: To evaluate the wear of computer-aided design/computer-aided manufacturing (CAD-CAM) dental ceramic materials opposed by enamel as a function of increased chewing forces.

Materials And Methods: The enamel cusps of healthy human third molar teeth (n = 40) opposed by materials from CAD-CAM dental ceramic groups (n = 10), including Vita Enamic® (ENA), a polymer-infiltrated ceramic network (PICN); GC Cerasmart® (CERA), a resin nanoceramic; Celtra® Duo (DUO), a zirconia-reinforced lithium silicate (ZLS) ceramic; and IPS e.max ZirCAD (ZIR), a polycrystalline zirconia, were exposed to chewing simulation (1,200,000 cycles; 120 N load; 1 Hz frequency; 0.

Translucency of ceramic material in different core-veneer combinations.

Statement Of Problem: Understanding the translucency of ceramic materials is important to achieve good esthetics. Ceramic thickness is related to translucency; however, less information about core-veneer thickness in combination is available.

Purpose: The purpose of this study was to investigate the translucency parameters of core-veneer thicknesses in 2 different ceramic materials.

An alternative method for cementing laminate restorations with a micropulse toothbrush.

Because porcelain laminate veneers are fragile and thin, seating should be handled carefully, but complete seating is essential for a successful restoration. When a high-viscosity luting resin is chosen, high pressure will be needed to seat the veneer, which makes it possible to fracture the material with finger pressure. This technical report describes a straightforward and safe cementation technique for porcelain laminate veneers as well as for complete crown, inlay, and onlay restorations.

Three cases of elongated mandibular coronoid process with different presentations.

Abnormal elongation of the mandibular coronoid process is rare and its etiology is not yet elucidated. The aim of this report is to demonstrate and discuss the relationship between elongated mandibular coronoid process and limitation of mouth opening with cone beam computed tomography. Although the clinical characteristic of elongation of the coronoid process is mandibular limitation, in this report, one case had problem with mouth opening.

Correlation of surface texture with the stainability of ceramics.

Statement Of Problem: Stainability is an important factor in the long-term clinical success of ceramic restorations. Contour adjustments on restoration surfaces cause differences in ceramic texture that may be affected differently by the staining agent.

Purpose: The purpose of this study was to evaluate the surface texture obtained by different surface treatments relevant to the stainability of heat-pressed leucite-reinforced ceramic disk-shaped specimens.

Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface.

Purpose: To evaluate the effects of hydrofluoric acid etching and Er,Cr:YSGG laser irradiation on the shear bond strength of resin cement to lithium disilicate ceramic.

Materials And Methods: Fifty-five ceramic blocks (5 mm × 5 mm × 2 mm) were fabricated and embedded in acrylic resin. Their surfaces were finished with 1000-grit silicon carbide paper.

Removal of fractured laminate veneers with Er:YAG laser: report of two cases.

Objective: To demonstrate the efficiency of Er:YAG laser for removal of laminate veneers in case of fracture. Primary modes of failure of porcelain laminate veneers were noted to be fracture, microleakage, or debonding.

Background Data: One of the predisposing factors for the occurrence of fractures is heavy functional or parafunctional loading.

Effects of different surface treatments on stainability of ceramics.

Statement Of Problem: Final adjustments may result in a loss of ceramic glaze, a situation which must be corrected by reglazing or polishing to obtain clinically successful restorations; such restorations may be susceptible to staining.

Purpose: The purpose of this study was to determine the stainability of ceramics exposed to coffee after different surface treatments and to correlate the surface roughness with the color differences.

Material And Methods: Sixty-six ceramic (IPS e.

Comparison of the marginal fit of different coping materials and designs produced by computer aided manufacturing systems.

In this study, marginal adaptations of different copings fabricated with CAD/CAM or MAD/CAM were analysed. Celay and Zirkonzahn groups were fabricated by MAD/CAM, LAVA and DC-Zircon groups were fabricated by CAD/CAM. Casting metal copings were used as the control group.

Use of Stafne's mandibular defect in improving retention of mandibular complete dentures.

In 1942, Stafne was the first to report radiographic findings of "static bone cavities" situated near the angle of the mandible. The typical radiographic appearance of Stafne's mandibular defect is a radiolucency below the inferior alveolar canal, between the mandibular premolars and the angle of the mandible. Stafne's mandibular defect ranges from 10 mm to 30 mm in diameter.

Using tissue conditioner material in neutral zone technique.

The looseand unstable lower complete denture is a common problem faced by denture patients. One method used to solve this problem is the neutral zone technique. The neutral zone is the area where the displacing forces of the lips, cheeks and tongue are in balance.

Elongated mandibular coronoid process as a cause of mandibular hypomobility.

There are multiple factors in cases of mandibular hypomobility. One of these factors is elongated coronoid process. Two cases are presented to illustrate elongated coronoid process leading to mandibular hypomobility to help prevent misdiagnosis by clinicians.

Radiological evaluation of the styloid process in young adults resident in Turkey's Yeditepe University faculty of dentistry.

Objectives: This study evaluated and classified the radiographic appearance of the styloid process (SP) patterns of calcification according to subject gender. The relationship between SP length and the limits of mandibular protrusion was studied.

Study Design: The panoramic radiographs of 55 young adults were analyzed.