The Effect of Phosphoric Acid Pre-etching Times on Bonding Performance and Surface Free Energy with Single-step Self-etch Adhesives.

abstract：:The bulk-filling of deep, wide dental cavities is faster and easier than traditional incremental restoration. However, the extent of cure at the bottom of the restoration should be carefully examined in combination with the polymerization contraction and gap formation that occur during the restorative procedure. The a...

journal_title：Operative dentistry

authors： Benetti AR,Havndrup-Pedersen C,Honoré D,Pedersen MK,Pallesen U

更新日期：2015-03-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to evaluate the influence of thermal cycling on the flexural properties and simulated wear of computer-aided design/computer-aided manufacturing (CAD/CAM) resin composites. METHODS:The six CAD/CAM resin composites used in this study were 1) Lava Ultimate CAD/CAM Restorative (LU)...

journal_title：Operative dentistry

authors： Tsujimoto A,Barkmeier WW,Takamizawa T,Latta MA,Miyazaki M

更新日期：2017-01-01 00:00:00

abstract：:This study evaluated the two-year clinical performance of two minimally invasive cavity preparation techniques, bur and laser, in Class I occlusal resin composite restorations. Twenty-seven patients, each having at least one pair of occlusal caries, were enrolled in this study. For each patient, one of the cavities wa...

journal_title：Operative dentistry

authors： Yazici AR,Baseren M,Gorucu J

更新日期：2010-09-01 00:00:00

abstract：:This study compared the degree of marginal leakage of a compomer in Class V cavities of human primary molars prepared by a conventional dental bur and air abrasion with or without acid etching. Fifty-six non-carious extracted primary molars were randomly divided into four groups (n=14) to be prepared by four technique...

journal_title：Operative dentistry

authors： Aysegül O,Nurhan O,Haluk B,Dilek T

更新日期：2005-03-01 00:00:00

abstract：OBJECTIVES::To evaluate the effect of a remineralizing gel combining fluoride and calcium silicate/phosphate or a sodium fluoride gel on bleached enamel microhardness, color, and wear susceptibility. METHODS AND MATERIALS::Two hundred forty bovine enamel-dentin samples were prepared. Baseline analysis of Knoop microha...

journal_title：Operative dentistry

authors： Crastechini E,Borges AB,Torres C

更新日期：2019-01-01 00:00:00

abstract：CLINICAL RELEVANCE:Using a material that optimizes marginal seal when using a margin elevation technique to manage deep class II cavities should enhance clinical outcomes. SUMMARY:Objectives: The purpose of this laboratory study was to perform a tridimensional interfacial gap evaluation of class II cavities with ename...

journal_title：Operative dentistry

authors： Scotti N,Baldi A,Vergano EA,Tempesta RM,Alovisi M,Pasqualini D,Carpegna GC,Comba A

更新日期：2020-09-01 00:00:00

abstract：:Coronal fractures of posterior teeth are not rare in clinical practice. Most of the time they constitute a restorational problem for the clinician, since they usually end below the free gingival crest. Two hundred coronal fractures of posterior teeth were examined in this study, with respect to several factors. Some o...

journal_title：Operative dentistry

authors： Lagouvardos P,Sourai P,Douvitsas G

更新日期：1989-01-01 00:00:00

abstract：STATEMENT OF THE PROBLEM:Precise shade matching can be one of the most difficult tasks for the dentist and some variables may influence the process of shade comparison. PURPOSE OF THE STUDY:This study tested the differences in shade perception between genders, the influence of the observer's clinical experience, and t...

journal_title：Operative dentistry

authors： Milagres V,Teixeira ML,Miranda ME,Osorio Silva CH,Ribeiro Pinto JR

更新日期：2012-05-01 00:00:00

abstract：:This in vitro study compared the marginal and internal adaptation of bulk-filled Class I and cuspal coverage direct resin composite restorations filled with different types of adhesive restorative systems and different thicknesses of bonding agent. Seventy-two intact, caries-free, freshly extracted human molars were r...

journal_title：Operative dentistry

authors： Stavridakis MM,Kakaboura AI,Ardu S,Krejci I

更新日期：2007-09-01 00:00:00

abstract：OBJECTIVE:This in vitro study evaluated the effect of polishing with different polishing systems on the surface roughness and gloss of commercial composites. METHODS:One hundred disk-shaped specimens (10 mm in diameter × 2 mm thick) were made with Filtek P-90, Filtek Z350 XT, Opallis, and Grandio. The specimens were m...

journal_title：Operative dentistry

authors： Rodrigues-Junior SA,Chemin P,Piaia PP,Ferracane JL

更新日期：2015-07-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to compare the in vivo diagnostic ability of a laser fluorescence system (DIAGNOdent, KaVo, Biberac, Germany) with that of visual inspection in the early detection of occlusal caries in newly erupted noncavitated first permanent molars among caries-active children. MATERIALS AND MET...

journal_title：Operative dentistry

authors： Duruturk L,Ciftçi A,Baharoğlu S,Oztuna D

更新日期：2011-07-01 00:00:00

abstract：:Veneers were fabricated by CEREC CAD-CAM and the platinum foil techniques for standardized preparations on 10 artificial teeth. Mesial preparation contacts were broken, but distal contacts remained intact. The veneers were cemented in a standardized manner to their teeth. The veneers and their attached cement were emb...

journal_title：Operative dentistry

authors： Suh PS,Johnson R,White SN

更新日期：1997-05-01 00:00:00

abstract：:The purpose of this study was to determine if air thinning three dentin adhesives would affect bond strength to dentin. Ninety human molars were mounted in acrylic and the occlusal surfaces ground to expose a flat dentin surface. Thirty teeth were randomly assigned to one of the following dentin bonding agent/composit...

journal_title：Operative dentistry

authors： Hilton TJ,Schwartz RS

更新日期：1995-07-01 00:00:00

abstract：PURPOSE::The purpose of this study was to quantify the relative strength tolerance of 1-day and 30-day amalgam following saturation contamination with water, saliva, blood, and handpiece lubricant oil during condensation. METHODS AND MATERIALS::Valiant PhD XT amalgam was tested with 300 shear-strength (N=15) and 120 c...

journal_title：Operative dentistry

authors： Roggenkamp C,Choi B,Chung J,Parhizkar R,Pham A,Robles R

更新日期：2019-03-01 00:00:00

abstract：:This study investigated the effect of conventional and acidified casein phosphopeptide-amorphous calcium phosphate-containing crèmes (CPP-ACP and ACPP-ACP) on dentin permeability (DP) before and after acid challenge, using a fluid-flow measuring device and scanning electron microscopic (SEM) examination. Fifty dentin ...

journal_title：Operative dentistry

authors： Kijsamanmith K,Banomyong D,Burrow MF,Kanchanasantikul P,Wipawiwat S,Srikam S,Laojarungphesatchakorn S

更新日期：2019-09-01 00:00:00

abstract：:In some patients with labial white stains involving the enamel and dentin, bleaching associated with a restorative procedure using composites may be an appropriate treatment alternative. Although bleaching makes the teeth and the stain whiter, the staining is less evident and easier to restore. Restorative procedures ...

journal_title：Operative dentistry

authors： Carvalho LD,Bernardon JK,Bruzi G,Andrada MA,Vieira LC

更新日期：2013-07-01 00:00:00

abstract：:This study compared microleakage of composite bonded to etched flattened enamel in seven groups of five extracted maxillary molars. The facial enamel of the molars was ground flat and etched for 20 seconds with 37% phosphoric acid gel. In one group, etching gel was not rinsed but dried only. In four groups, gel was ri...

journal_title：Operative dentistry

authors： Summitt JB,Chan DC,Dutton FB,Burgess JO

更新日期：1993-01-01 00:00:00

abstract：:In the direct treatment of cervical lesions and to improve the impression-making procedure prior to fabricating indirect restorations, exposure of the gingival sulcus and control of hemorrhage or gingival fluid seepage are a prerequisite. For gingival displacement, cords impregnated with medicaments are widely used. I...

journal_title：Operative dentistry

authors： Fazekas A,Csempesz F,Csabai Z,Vág J

更新日期：2002-07-01 00:00:00

abstract：:This study evaluated the effect of polishing after one-day storage in water on the gap formation around a Class V restoration completely bordered by enamel (coronal cavity) using one resin-modified glass ionomer, one compomer and one conventional glass ionomer as a control. The study also examined gap formation of the...

journal_title：Operative dentistry

authors： Irie M,Suzuki K

更新日期：2002-01-01 00:00:00

abstract：:The aim of this review was to compile recent evidence related to nanofilled resin composite materials regarding the properties and clinical performance. Special attention was given to mechanical properties, such as strength, hardness, abrasive wear, water sorption, and solubility. The clinical performance of nanocompo...

journal_title：Operative dentistry

authors： Alzraikat H,Burrow MF,Maghaireh GA,Taha NA

更新日期：2018-07-01 00:00:00

abstract：:This in vitro study investigated the effects of a thin layer of flowable composite or compomer on microleakage occurring in Class II packable and nanofilled composite restorations that extend apical to the cemento-enamel junction (CEJ). The current study also investigated any differences in microleakage that occur bet...

journal_title：Operative dentistry

authors： Sadeghi M,Lynch CD

更新日期：2009-05-01 00:00:00

abstract：:Amalgapins are susceptible to early fracture during matrix removal and carving. The purpose of this study was to examine the early fracture resistance of amalgapin-retained restorations using a spherical amalgam alloy, an admixed amalgam alloy, a combination of admixed alloy over the spherical alloy, and a recently in...

journal_title：Operative dentistry

authors： Schulte GA,Hermesch CB,Vandewalle KS,Buikema DJ

更新日期：1998-03-01 00:00:00

abstract：OBJECTIVES:Whitening efficacy has been related to hydrogen peroxide (HP) diffusion into tooth structure. However, little information is available relating rheological properties to whitening efficacy. The purpose was to evaluate the whitening efficacy and HP penetration level of a 10% HP gel at three different viscosit...

journal_title：Operative dentistry

authors： Kwon SR,Pallavi F,Shi Y,Oyoyo U,Mohraz A,Li Y

更新日期：2018-05-01 00:00:00

abstract：:This study investigated the influence of different light sources associated with a transdental photoactivation technique on the marginal adaptation and hardness of composite restorations. Cavities (3 mm wide x 3 mm long x 1.5 mm in deep) were prepared on flattened bovine dentin and filled with Z250 composite (3M ESPE)...

journal_title：Operative dentistry

authors： Alves EB,Alonso RC,Correr GM,Correr AB,de Moraes RR,Sinhoreti MA,Correr-Sobrinho L

更新日期：2008-07-01 00:00:00

abstract：OBJECTIVES:To evaluate the efficacy of a new light-cured anesthetic gel for pain control in adults undergoing rubber dam isolation for the restorative treatment of noncarious cervical lesions (NCCLs). METHODS AND MATERIALS:This study was a randomized, split-mouth, triple-blind, controlled trial. The sample comprised 5...

journal_title：Operative dentistry

authors： Wambier LM,Gonzaga CC,Chibinski A,Wambier DS,Farago PV,Loguercio AD,Reis A

更新日期：2020-03-01 00:00:00

abstract：:This study compares volumetric changes and rates of shrinkage during different stages of polymerization of dental resin composites and compomers exposed to the same total energy by using two different combinations of power density and exposure duration. A hybrid composite and its equivalent flowable and a compomer and...

journal_title：Operative dentistry

authors： Oberholzer TG,Pameijer CH,Grobler SR,Rossouw RJ

更新日期：2003-09-01 00:00:00

abstract：CLINICAL RELEVANCE:The use of laser light during bleaching will not reduce the incidence or severity of sensitivity and will not increase the degree of color change compared with nonlaser light sources. SUMMARY:Objective: To evaluate whether the use of laser during in-office bleaching promotes a reduction in dental se...

journal_title：Operative dentistry

authors： Casado B,Pellizzer EP,Souto Maior JR,Lemos C,Vasconcelos B,Moraes S

更新日期：2020-11-01 00:00:00

abstract：OBJECTIVES:This study investigated cuspal deformation in teeth restored with different types of adhesive materials with and without a base. METHODS:Mesio-occluso-distal slot cavities of moderately large dimension were prepared on extracted maxillary premolars (n=24). Teeth were assigned to one of four groups and resto...

journal_title：Operative dentistry

authors： Nguyen KV,Wong RH,Palamara J,Burrow MF

更新日期：2016-03-01 00:00:00

abstract：:SmartPrep is a rotating instrument for dentin caries excavation made from a special polymer. The manufacturer's product information stated that SmartPrep removes carious dentin selectively. This in vitro study compared the efficiency of SmartPrep with conventional tungsten carbide bud burs. Fifty extracted teeth were ...

journal_title：Operative dentistry

authors： Dammaschke T,Rodenberg TN,Schäfer E,Ott KH

更新日期：2006-03-01 00:00:00

abstract：:The nature of the hybrid layer (HL) following chemical treatment has not been resolved. The effects of chemical treatments and polishing on HL morphology and composition were investigated using micro-Raman spectroscopy and SEM. Polished and unpolished SingleBond adhesive/dentin (a/d) interfaces from the same tooth wer...

journal_title：Operative dentistry

authors： Wang Y,Spencer P

更新日期：2004-11-01 00:00:00