Results: 259

Effect of titanium tetrafluoride varnish on fibroblasts (NIH/3T3): viability assay, morphological analysis and cell signals for apoptotic pathways

Current knowledge supports the application of TiF4 varnish to protect against tooth caries and erosion; however, it is indispensable to know its cytotoxic potential and the mechanism involved on it before applying in patients. Therefore, this study aimed to evaluate 1) The cytotoxic effect of titanium te...

Tratamento biomimético de discos e implantes de titânio com alendronato: caracterização topográfica, estudo histométrico e imunoistoquímico em coelhos

Tratamentos de superfície de materiais implantáveis no corpo humano são analisados incansavelmente dentro das áreas da saúde. É comum ser observado em artigos científicos o emprego de um recente e desconhecido biomaterial sendo analisado para este fim. O objetivo deste estudo foi avaliar o emprego...

Implantes de titânio com superfície tratada a base de β-tricálcio fosfato em levantamento da membrana sinusal: estudo experimental de superfície, análise biomecânica, histométrica e imunoistoquímica em coelhos

Modificações físicas e/ou químicas das superfícies dos implantes de titânio podem ser realizadas com intuito de facilitar e estimular o processo de osseointegração, consequentemente favorecendo um tempo de reparo mais curto. Sendo assim, o objetivo deste estudo foi avaliar as superfícies de impl...

Complications with PMMA compared with other materials used in cranioplasty: a systematic review and meta-analysis

Abstract Polymethyl methacrylate (PMMA) has been considered a suitable material for cranioplasty. However, no consensus has been reached concerning the best material for cranioplasty with regard to minimizing complications. Thus, this systematic review and meta-analysis aimed to compare the complication ...

A comparison of different bone graft materials in peri-implant guided bone regeneration

Abstract The aim of this study was to compare the effects of hydroxyapatite (HA), deproteinized bovine bone (DPB), human-derived allogenic bone (HALG), and calcium sulfate (CAP) graft biomaterials used with titanium barriers for bone augmentation to treat peri-implant defects in rat calvarium treated by ...

Analysis of the antimicrobial and anti-caries effects of TiF4 varnish under microcosm biofilm formed on enamel

J. appl. oral sci; 26 (), 2018
Abstract Titanium tetrafluoride (TiF4) is known for interacting with enamel reducing demineralization. However, no information is available about its potential antimicrobial effect. Objectives This study evaluated the antimicrobial and anti-caries potential of TiF4 varnish compared to NaF varnish, chlor...

Debris extrusion and foraminal deformation produced by reciprocating instruments made of thermally treated NiTi wires

J. appl. oral sci; 26 (), 2018
Abstract Objective To evaluate the amount of apically extruded debris, percentage of foraminal enlargement and apical foramen (AF) deformation that occurred during root canal preparation with different reciprocation systems: Reciproc, WaveOne (M-Wire), and ProDesign R (Shape Memory Technology Wire) at t...

TiF4 varnish protects the retention of brackets to enamel after in vitro mild erosive challenge

J. appl. oral sci; 26 (), 2018
Abstract The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. Objective: The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets t...

Reliability of light microscopy and a computer-assisted replica measurement technique for evaluating the fit of dental copings

J. appl. oral sci; 26 (), 2018
Abstract The aim of this in vitro study was to assess the reliability of two measurement systems for evaluating the marginal and internal fit of dental copings. Material and Methods: Sixteen CAD/CAM titanium copings were produced for a prepared maxillary canine. To modify the CAD surface model using dif...

Comparison of deflection forces of esthetic archwires combined with ceramic brackets

J. appl. oral sci; 26 (), 2018
Abstract Coated archwires and ceramic brackets have been developed to improve facial esthetics during orthodontic treatment. However, their mechanical behavior has been shown to be different from metallic archwires and brackets. Therefore, the aim of this study was to compare the deflection forces in coa...