The aims of this study were to characterize inorganic content (IC), light transmission (LT), biaxial flexural strength (BFS), and modulus (FM) one conventional (layered) four bulk-fill composites at different depths.Bulk-fill tested Surefil SDR flow (SDR), Filtek Bulk Fill (FBF), Tetric EvoCeram (TEC), EverX Posterior (EXP). Herculite Classic (HER) was used as a control. Energy dispersive x-ray analysis scanning electron microscopy filler particle composition morphology. LT through composite...

Abstract The purpose of this study was to evaluate the surface roughness (Ra), and morphology composition filler particles different composites submitted toothbrushing water storage. Disc‐shaped specimens (15 mm × 2 mm) were made from five composites: two conventional (Z100™, Filtek™ Supreme Ultra Universal, 3M), one “quick‐cure” (Estelite ∑ Quick, Tokuyama), fluoride‐releasing (Beautiful II, Shofu), self‐adhering (Vertise Flow, Kerr) composite. Samples finished/polished using aluminum oxide...

The aim of this study was to quantify the internal void volume formation in commercially available, resin composites inserted using conventional or sonic insertion methods, and analyzed three-dimensional (3D) micro-computed tomography (μCT).Four were evaluated: one (Herculite, Ultra, Kerr Corporation, Orange, CA, USA), flowable bulk fill (SureFil SDR Flow, Dentsply International, York, PA, two packable (SonicFill, Tetric EvoCeram Bulk Fill, Ivoclar Vivadent Inc, Schaan, Liechtenstein). Eight...

SUMMARY Objective The objective of this study was to evaluate the surface roughness (SR), water sorption (WS), and solubility (SO) four composite resins after finishing/polishing one year storage. Materials Methods Two low-shrinkage composites (Filtek Silorane [3M ESPE] Aelite LS [Bisco Inc]) two conventional formulations (Heliomolar Tetric N-Ceram [Ivoclar Vivadent]) were tested. Their respective finishing polishing systems (Sof-Lex Discs, 3M ESPE; Finishing Discs Kit, Bisco Inc; Astropol...

This study investigated the bonding performance of three universal adhesive systems applied using etch-and-rinse (ER) or self-etch (SE) strategies on natural dentin caries.Sixty human third molars were selected for this study: 30 naturally carious (CAD) and sound (SD) teeth. The surfaces exposed, teeth randomly assigned to each evaluated system: Scotchbond Universal (SBU), Futurabond U (FBU), Prime&Bond Elect (PBE) an strategy: ER SE. following manufacturer's instructions, restored a resin...

Shear bond strength (SBS) and the interfacial adaptation (IA) of self-adhesive resin (SAR) composites to dentin were evaluated. Two SARs [Vertise Flow (VTF) Fusio Liquid Dentin (FLD)] evaluated compared with a conventional restorative system [adhesive: OptiBond FL composite: Herculite Précis (OBF/HP)]. Human third molars used for SBS testing IA imaging (n=7) using optical coherence tomography (OCT). Flattened disks prepared applied into molds (2.4 mm diameter) that positioned on dentin....

Clinical Relevance Total-etch adhesive systems and resin composite are clinically viable dental materials for esthetic restorations in teeth presenting white/yellow/brown hypomineralization stains. SUMMARY Molar-incisor (MIH) is a condition that negatively affects enamel dentin, especially the first molars permanent incisors, causing functional problems. The present clinical case report presents discusses etiology characteristics of MIH describes restorative protocol MIH-affected teeth.

Abstract Objective To evaluate the whiteness index ( W ID ) and surface roughness (Ra) of bovine enamel after simulated tooth brushing with different commercial experimental whitening dentifrices. Materials Methods Cylindrical specimens were acid etched, stained, divided in nine groups n = 8): Colgate® Optic White®, Crest® Baking Soda Peroxide, Arm Hammer® Advanced White™ Extreme Whitening, Rembrandt® Deeply White® + Close up® White Attraction Natural Glow, Hinode Prowhite, dentifrice...

<p>This study evaluated the effects of indirect restorative materials, curing conditions and time on degree conversion (DC) a dual-cured resin cement using infrared spectroscopy. The (RelyX Unicem 2, 3M ESPE) was applied to diamond surface horizontal attenuated-total-reflectance unit activated one following conditions: self-cure, direct light exposure, exposure through materials (resin nano-ceramic: Lava Ultimate, ESPE or feldspathic ceramic: Vita Blocks Mark II, Zahnfabrik). Four...

To evaluate the ability of different esthetic archwires to retain oral biofilms in vitro.Seven brands coated orthodontic were tested: two epoxy coated, polytetrafluoroethylene rhodium and one silver plus polymer coated. Conventional uncoated metallic used as controls. Streptococus mutans adherence was quantified by colony count following 24 hours biolfilm growth, total wire-associated biofilm measured using a crystal violet staining assay. For both tests, conditions used: 0% sucrose 3%...

The depth of cure using blue-light photocuring units (BL) is limited by tooth structure and qualities the restorative material through which activating wavelength must pass. Recent developments incorporate an infrared (IR) activated upconversion (UC) fluorescence a lining agent filled with nanocrystals NaYF4 doped YB+3 Tm+3 that emit both blue violet light locally at interface liner resin. purpose this study was to evaluate BL 975 nm power transmission dental tissues materials.

This study aimed to evaluate the impact of various commercial silane brands with varied chemical compositions or without application an adhesive layer on microshear bond strength and durability a resin luting agent lithium disilicate glass ceramic.

The purposes of this study were to 1) evaluate the effectiveness different cleaning methods from a previously etched and silanized lithium disilicate glass ceramic (EMX) surface after contact with organic fluids (saliva or human blood) 2) assess effect applying new silane layer on microshear bond strength (mSBS) resin cement EMX. EMX discs 5% hydrofluoric acid (HF) properly silanized. Three control groups created (n=10): (without contamination), saliva positive, blood positive. Later,...

After bleaching, enamel surfaces are damaged, contributing to erosion and tooth sensitivity. Although fluoride is used after bleaching try revert alterations, it not capable of repairing structure. This study compared the effect a self-assembly peptide (P11-4), with without fluoride, sodium (NaF 2%) on Knoop microhardness (KHN) surface roughness (Ra (μm)) bleached an in-office regimen. Enamel blocks bovine teeth (5 × 5 2 mm) standardized hardness were 35% carbamide peroxide, following...

This study investigated the influence of incorporating Biosilicate® on physico-mechanical and biological properties glass ionomer cement (GIC). bioactive ceramic (23.75% Na2O, 23.75% CaO, 48.5% SiO2, 4% P2O5) was incorporated by weight (5%, 10%, or 15%) into commercially available GICs (Maxxion R Fuji IX GP). Surface characterization made SEM (n = 3), EDS FTIR 1). The setting working (S/W time) times 3) compressive strength (CS) were analyzed 10) according to ISO 9917-1:2007. ion release 6)...