Dietary Profile of Women With Chronic Muscle Temporomandibular Disorder: An Observational Study.

Background: Temporomandibular disorder (TMD) is the main chronic pain that affects the face, and it is associated with dietary changes due to pain and dysfunction. However, there is a scarcity of studies on its impact on nutrition and vice versa.

Objectives: To assess and compare the intake of energy and nutrients among chronic TMD myalgia and asymptomatic women and to evaluate data according to dietary reference intakes (DRI) and the World Health Organization (WHO) values.

Preemptive use of ibuprofen and desensitizer decreases immediate tooth sensitivity after in-office bleaching: A triple-blind, randomized, placebo-controlled clinical trial.

Background: The authors evaluated the synergistic analgesic effect of preemptive administration of 400 mg of ibuprofen (IBU) and potassium fluoride 2% (KF2), both in isolation or combination, on the painful perception of tooth sensitivity after tooth bleaching.

Methods: Fifteen patients participated in this triple-blind, randomized, placebo-controlled clinical trial. The study used a crossover design for drug administration and a split-mouth design for desensitizer agent.

Influence of the frameworks of implant-supported prostheses and implant connections on stress distribution.

Background: The maintenance of marginal bone integrity around dental implants continues to be a clinical challenge. It is still unclear whether loading multiple implant-supported prostheses that have different implant connections influences bone resorption.

Objectives: The aim of this in vitro study was to compare stress distribution around residual edentulous ridges supported by external hexagon (EH) and Morse taper (MT) implants with screw-retained frameworks obtained with the use of different methods.

Evaluation of one versus two glaze firings on the color stability and mechanical properties of an extrinsically characterized monolithic CAD-CAM lithium disilicate glass ceramic.

Purpose: To evaluate the effects of 1 versus 2 glaze firings on the color and mechanical properties of an extrinsically characterized lithium disilicate ceramic after thermal cycling, brushing, or both.

Materials And Methods: Eighty specimens were divided into 2 groups: 1 glaze firing (GL1) and 2 glaze firings (GL2). Each group was subdivided into 4 groups (n = 10), according to the experimental conditions: thermal-cycling, brushing, thermal-cycling + brushing, and immersion in distilled water (control).

Analysis of implant-supported cantilever fixed partial denture: An in vitro comparative study on vertical misfit, stress distribution, and cantilever fracture strength.

Purpose: To evaluate the vertical misfit, stress distribution around dental implants, and cantilever fracture strength of 3-unit implant-supported cantilever fixed partial dentures (FPDs) using frameworks made from different materials and manufacturing techniques.

Materials And Methods: Forty FPDs were fabricated and divided into 5 groups (n = 8) based on the framework material used: LAS Co-Cr (Conventional casting-laser welding); TIG Co-Cr (Conventional casting -TIG welding); OP Co-Cr (Conventional casting-one-piece); CAD Co-Cr (CAD-CAM); and CAD Zr (CAD-CAM ZrO). The vertical misfit was evaluated before porcelain application (T1) and before (T2), and after thermomechanical cycling (T3) by stereomicroscopy.

Evaluation of misfit and stress distribution in implant-retained prosthesis obtained by different methods.

This study evaluated the vertical misfit, passivity, and stress distribution after tightening the screws of different prosthesis. Two implants were used to simulate the rehabilitation of partially edentulous mandible space from the second premolar to the second molar. 40 three-element screw-retained fixed dental prosthesis with distal cantilever were fabricated and divided into four groups according to the method of production of framework (n = 10): G1 = conventional casting one-piece framework, G2 = conventional casting sectioned and laser welding, G3 = conventional casting sectioned and tungsten inert gas (TIG) welding and G4 = framework obtained by CAD/CAM (computer-aided design/computer-aided manufacturing) system.

Whitening effect of 35% hydrogen peroxide in simulation of tooth with orthodontic bracket.

Objective: To evaluate the color change and tooth whitening perception in 2 and 3 mm dental specimens simulating the orthodontic bracket for a 14-day period.

Materials And Methods: Forty bovine tooth fragments (8 × 7 mm) of 2 mm (G2, n = 20) and 3 mm (G3, n = 20) were divided into Control (C: without bracket simulation and whitening) and Experimental (E: with composite resin simulating orthodontic bracket cementation area). Analyses of color change (ΔE ) and perception of tooth whitening (WI ) were performed before (T ) and after (T ) the first bleaching session; before (T ) and after (T ) the second bleaching session; and after 7 days of the second bleaching session (T ).

The challenge of managing oral maxillofacial rehabilitation with quality and cost-benefit.

Although orofacial cancer leads to substantial functional, esthetic, and psychosocial deficits for patients, reconstructive plastic surgeries may not be indicated for large facial defects. The high costs of prosthetic oral maxillofacial rehabilitation may hamper such treatment, which commonly involves virtual planning, craniofacial implants, and computer-aided design and computer-aided manufactured prostheses. This report shows the treatment of 2 patients with large facial defects from surgical resection of cancerous tissue who were rehabilitated with implant-supported bar-clip overdentures and facial prostheses fabricated by using low-cost straightforward methods.

In vitro digital image correlation analysis of the strain transferred by screw-retained fixed partial dentures supported by short and conventional implants.

Purpose: This study used digital image correlation (DIC) to evaluate the strain transferred by splinted and non-splinted screw-retained fixed partial dentures (FPDs) supported by short and conventional implants.

Material And Methods: Four polyurethane models were fabricated to simulate half of the mandibular arch with acrylic resin replicas of the first premolar. Short (5 mm) and/or conventional (11 mm) implants replaced the second premolar and the first and second molars.

Photoelastic analysis of mandibular full-arch implant-supported fixed dentures made with different bar materials and manufacturing techniques.

Purpose: To compare the stress distribution of mandibular full dentures supported with implants according to the bar materials and manufacturing techniques using a qualitative photoelastic analysis.

Material And Methods: An acrylic master model simulating the mandibular arch was fabricated with four Morse taper implant analogs of 4.5×6mm.

Selective COX-2 Inhibitor (Meloxicam) and Tooth-Supporting Bone Quality. A Histomorphometric Study in Rats.

The effects of the non-steroidal anti-inflammatory drugs (NSAIDs) on bone quantity and quality were investigated for years. However, there is lack of information on the impact of NSAIDs on the quality of tooth-supporting alveolar bone in absence of periodontal inflammation. Thus, the aim of this study was to evaluate histometrically the influence of a selective COX-2 NSAID (Meloxicam) on the inter-radicular bone mineral density in rats.

Psychosocial aspects and temporomandibular disorders in dental students.

Objective: Dental students have high levels of anxiety that can affect not only academic performance but also increase the risk for other diseases. It is believed that the increase in the incidence of chronic orofacial pain in temporomandibular disorders (TMDs) may have an impact on the quality of life and general health of subjects. The aim of this study was to evaluate the prevalence of TMD in dental students and its association with general health, quality of life, and anxiety.

Evaluation of the periodontal conditions of teeth with restored and non-restored non-carious cervical lesions.

Objective: This research evaluated the periodontal conditions of teeth with restored and non-restored non-carious cervical lesions (NCCLs).

Method And Materials: Thirty-seven patients presenting at least two contralateral teeth with NCCL (one restored and another non-restored) were selected. Non-restored NCCL teeth were classified as a control group, while the contralateral teeth restored within at least 3 months with a Class 5 restoration located near the gingival margin were classified as the test group.

Influence of Temporary Cements on the Bond Strength of Self-Adhesive Cement to the Metal Coronal Substrate.

This research evaluated the influence of temporary cements (eugenol-containing [EC] or eugenol-free [EF]) on the tensile strength of Ni-Cr copings fixed with self-adhesive resin cement to the metal coronal substrate. Thirty-six temporary crowns were divided into 4 groups (n=9) according to the temporary cements: Provy, Dentsply (eugenol-containing), Temp Cem, Vigodent (eugenol-containing), RelyX Temp NE, 3M ESPE (eugenol-free) and Temp Bond NE, Kerr Corp (eugenol-free). After 24 h of temporary cementation, tensile strength tests were performed in a universal testing machine at a crosshead speed of 0.

Antifungal activity of propolis against Candida species isolated from cases of chronic periodontitis.

This research evaluated the fungistatic and fungicidal activities of red propolis alcoholic extract (RPAE) against different Candida species isolated from chronic periodontitis cases, and compared with chlorhexidine (CHX). Nineteen samples of Candida species (C. albicans [n = 12], C.

Tensile strength of Ni-Cr copings subjected to inner surface sandblasting using different cementing agents: An in vitro study.

Objectives: To evaluate the effect of thermal cycling and inner surface treatment with aluminum oxide at different granulations on the tensile strength of Ni-Cr copings cemented with different cementing agents.

Materials And Methods: Ninety-six metal copings were manufactured and divided into two groups: before and after thermal cycling (n = 48). The copings of both groups were internally treated by sandblasting with aluminum oxide particles of 100 (n = 24) and 320 (n = 24) mesh.

Concordance among different pain scales in patients with dental pain.

Aims: To evaluate the concordance among different pain scales for evaluation of pain in toothache patients and to assess the influence of oral health on the quality of life of those patients.

Methods: Ninety-two patients seeking treatment for toothache were evaluated before and after treatment. At baseline and 1 week after the dental treatment, the patients were requested to fill out the Oral Health Impact Profile Inventory (OHIP-14) as well as the following pain scales: the visual analog scale (VAS), numeric scale (NS), verbal rating scale (VRS), and Faces Pain Scale-Revised (FPS-R).

Immunohistochemical analysis of FoxP3+ cells in periapical granulomas and radicular cysts.

Objectives: To compare the number of FoxP3(+) cells between periapical granulomas (PGs) and radicular cysts (RCs), and to correlate this number with the intensity of the inflammatory infiltrate in these lesions and with epithelial thickness of RCs.

Study Design: Thirty PGs and 30 RCs were submitted to immunohistochemical analysis using an anti-FoxP3 polyclonal antibody. FoxP3(+) cells were counted under a light microscope (×400 magnification) in five fields and the mean value was calculated for each specimen.