Dentistry

Relationship between self-reported sleep bruxism and pain in patients with temporomandibular disorders
The aim of this study was to evaluate the association between self-reported sleep bruxism and the age, gender, clinical subtypes of temporomandibular disorders (TMD), pain intensity and grade of chronic pain in patients previously diagnosed with TMD. Thousand two-hundred and twenty patients of the Andalusian Health Service were examined using the Research Diagnostic Criteria for Temporomandibul...


Class II treatment with the Runner in adolescent patients: Combining Twin Block efficiency with aligner aesthetics
This case report describes the treatment of an 11-year-old boy with hypodivergent skeletal Class II, complete molar and canine Class II on the right and edge-to-edge relationship on the left, centered midlines, deep bite, and large over jet. The patient was treated with a Runner appliance, a series of clear aligners with embedded resin blocks that advance the mandible. This functional appliance...
Facebook marketing in contemporary orthodontic practi A consumer report
The introduction of Facebook has brought additional marketing opportunities to orthodontic practice. Social media–based marketing is different from traditional marketing strategies due to its interactive nature. The aims of this study were to determine consumers' perceptions of Facebook marketing and to determine which features of orthodontists' Facebook pages are the most effective in attrac...


Continuous Fever-Range Heat Stress Induces Thermotolerance in Odontoblast-leneage cells
Heat shock during restorative procedures can trigger damage to the pulpodentin complex. While severe heat shock has toxic effects, fever-range heat stress exerts beneficial effects on several cells and tissues. In this study, we examined whether continuous fever-range heat stress (CFHS) has beneficial effects on thermotolerance in the rat clonal dental pulp cell line with odontoblastic properti...
Effect of zirconia surface treatment on zirconia/veneer interfacial toughness evaluated by fracture mechanics method
The aim of this study was to evaluate the effect of the airborne-particle abrasion and liner application on the interfacial toughness between veneering porcelain and zirconia core by means of a fracture mechanics test. Beam-shaped zirconia specimens were sectioned and divided into 4 groups according to different surface treatments as follows: Group C (control): no treatment; Group L: applicatio...


Determination of H-file sizes being more suitable for measuring of working length in immature teeth using an EAL
Successful root canal treatments of immature permanent teeth require data on the exact working length (W. L.) for the preparation of root canal in the clinic. The author and colleagues have previously reported that root canal length of an immature tooth can be measured using an electronic apex locator (EAL; Apit 11®, Osada Electric Co., Ltd., Tokyo, Japan) in in vitro experiments. This study ...
Comparisons of discomfort among cutting instruments for removal of carious dentine in children
To determine the properties of cutting instruments used objectively in dental treatment for children, a comparative study of erbium-doped yttrium aluminium garnet (Er-YAG) laser, air abrasion system and a rotary cutting steel bur was conducted, focussing on discomfort such as pain, vibration, noise, odour and other types of discomfort during removal of carious dentine. The subjects were 60 chil...

Total daily fluoride intake and the relative contributions of foods, drinks and toothpaste by 3- to 4-year-old children in the Gaza Strip – Palestine
Children in Gaza Strip suffer from a high prevalence of dental fluorosis. To estimate and compare total daily fluoride (F) intake (TDFI) and investigate the relative contributions of different sources of F to TDFI, in 3- to 4-year-old children in Gaza Strip, exposed to low (1.2 mg/litre) F concentrations in tap water. A 3-day food diary and samples of tap water, drinks, foods, toothpastes and ...
The reporting quality of Randomised Controlled Trials in Orthodontics
Accurate trial reporting facilitates evaluation and better use of study results. The objective of this article is to investigate the quality of reporting of randomised controlled trials (RCTs) in leading orthodontic journals, and to explore potential predictors of improved reporting. The 50 most recent issues of 4 leading orthodontic journals until November 2013 were electronically searched. Re...

Obesity-associated Gingival Vascular Inflammation and Insulin Resistance
Obesity is a risk factor for periodontitis, but the pathogenic mechanism involved is unclear. We studied the effects of insulin in periodontal tissues during the state of obesity-induced insulin resistance. Gingival samples were collected from fatty (ZF) and lean (ZL, control) Zucker rats. Endothelial nitric oxide synthase (eNOS) expression was decreased, and activities of protein kinase C (PKC...
Retention of fissure sealants in young permanent molars affected by dental fluorosis: a 12-month clinical study
To evaluate and compare retention and caries occurance following placement of Clinpro and FUJI VII fissure sealants, by two different techniques simultaneously in unsealed, contralateral young permanent molars of 7- to 10-year-old children affected by mild to moderate dental fluorosis at various recall intervals of 1 week, 1, 3, 6 and 12 months.80 schoolchildren with mild to moderate dental f...

A Novel Coping Design to Decrease Maximum Principal Stress in Zirconia Ceramic Restorations
The objective of this study was to evaluate the influence of coping design modifications on maximum first principal stress (MPS) in a mathematical zirconia ceramic crown model. For a nonlinear, 3D finite element analysis, a simplified tooth model was built on the basis of the average dimensions of mandibular second molars. Virtual tooth reduction was performed to model an abutment with a flat o...
The Effect of Glass Fiber-Reinforced Epoxy Resin Dowel Diameter on the Fracture Resistance of Endodontically Treated Teeth
To determine the effect of glass fiber-reinforced epoxy resin (FRC) dowels of different diameters on the failure load of endodontically treated teeth with different remaining dentine and reinforcing resin composite (RRC) thicknesses and the mode of failure in each group. Fifty extracted intact human maxillary central incisors were decoronated 2 mm incisal to the buccal cementoenamel junction an...
Improvement in Dental Porcelain Bonding to Milled, Noncast Titanium Surfaces by Gold Sputter Coating
This study evaluated the adherence of dental porcelain to a milled, noncast titanium (Ti) surface with a gold sputter coating to evaluate a possible new practical surface treatment for enhancing the bond strength between Ti and porcelain. Milled, noncast Ti strips were created by computer-aided design and manufacturing processes. The milled, noncast Ti strips were sandblasted with alumina parti...
Influence of Implant/Abutment Connection on Stress Distribution to Implant-Surrounding Bone: A Finite Element Analysis
The objective of this study was to analyze and compare the stress distribution in the cortical and trabecular bone between the internal hexagon and the Morse taper systems, both with straight abutments. Two implant systems (Morse taper and internal hexagon connections) were simulated in maxillary bone. Loads of 100 N (axial) and 50 N (oblique) in relation to the implant axes were applied. The...