Results: 594

Reliability, failure probability, and strength of resin-based materials for CAD/CAM restorations

J. appl. oral sci; 24 (5), 2016
ABSTRACT Objective: This study investigated the Weibull parameters and 5% fracture probability of direct, indirect composites, and CAD/CAM composites. Material and Methods: Discshaped (12 mm diameter x 1 mm thick) specimens were prepared for a direct composite [Z100 (ZO), 3M-ESPE], an indirect laborato...

Porosity of temporary denture soft liners containing antifungal agents

J. appl. oral sci; 24 (5), 2016
ABSTRACT Incorporation of antifungals in temporary denture soft liners has been recommended for denture stomatitis treatment; however, it may affect their properties. Objective: To evaluate the porosity of a tissue conditioner (Softone) and a temporary resilient liner (Trusoft) modified by minimum inhib...

Influence of ligation method on friction resistance of lingual brackets with different second-order angulations: an in vitro study

ABSTRACT Objective: To evaluate stainless steel archwire static friction in active and passive self-ligating lingual and conventional brackets with second-order angulations. Methods: Two conventional lingual brackets for canines (STb light/Ormco; PSWb/Tecnident), and two self-ligating brackets, one ac...

Ethanol-wet bonding technique: 18-month clinical evaluation

The objective of this randomized clinical trial was to evaluate the clinical performance up to 18 months of restorations placed using ethanol-wet bonding technique (EWBT) compared with the three-step etch-and-rinse (TSER) and one-step self-etching (OSSE) approaches. Ninety-three non-carious cervical lesi...

M/F changes after T-loop upper horizontal bending in segmented arch mechanics

bTi T-type loops are a frictionless, efficient alternative for extraction space closure. Changes in the upper horizontal portion of T-type loops to improve their mechanical behavior have been proposed, but differences in their biomechanical characteristics have not been well described. This stu dy analyz...

The impact of clinical use on the torsional behavior of Reciproc and WaveOne instruments

J. appl. oral sci; 24 (4), 2016
ABSTRACT Torsional overload is a fracture representative parameter for instruments in single-file techniques. Objective The aim of this study was to assess the influence of clinical use, in vivo, on the torsional behavior of Reciproc and WaveOne instruments considering the possibility that they degrade...

Characterisation and microleakage of a new hydrophilic fissure sealant - UltraSeal XT® hydro

J. appl. oral sci; 24 (4), 2016
ABSTRACT Objectives The aim of this study was to characterise the new hydrophilic fissure sealant, UltraSeal XT® hydro™ (Ultradent Products, USA), and to investigate its in vitro resistance to microleakage after placement on conventionally acid etched and sequentially lased and acid etched molar...

Water interaction and bond strength to dentin of dye-labelled adhesive as a function of the addition of rhodamine B

J. appl. oral sci; 24 (4), 2016
ABSTRACT Objective This study investigated the effect of the fluorescent dye rhodamine B (RB) for interfacial micromorphology analysis of dental composite restorations on water sorption/solubility (WS/WSL) and microtensile bond strength to dentin (µTBS) of a 3-step total etch and a 2-step self-etch ad...

Influence of resin cement shade on the color and translucency of ceramic veneers

J. appl. oral sci; 24 (4), 2016
ABSTRACT Objective This in vitro study evaluated the effect of two different shades of resin cement (RC- A1 and A3) layer on color change, translucency parameter (TP), and chroma of low (LT) and high (HT) translucent reinforced lithium disilicate ceramic laminates. Material and Methods One dual-cured...

Comparison of the marginal adaptation of direct and indirect composite inlay restorations with optical coherence tomography

J. appl. oral sci; 24 (4), 2016
ABSTRACT Objective The purpose of the study was to use the photonic imaging modality of optical coherence tomography (OCT) to compare the marginal adaptation of composite inlays fabricated by direct and indirect techniques. Material and Methods Class II cavities were prepared on 34 extracted human mo...