Endodontic Access Effect on Full Contour Zirconia and Lithium Disilicate Failure Resistance.

abstract：:This research investigated the effects of wet and dry conditions of phosphoric acid etched dentin on resin bonding and determined the optimum moisture condition for resin bonding using an ethanol-based one-bottle adhesive system. Bovine dentin surfaces were etched with 35% phosphoric acid and rinsed with water. Under ...

journal_title：Operative dentistry

authors： Nakaoki Y,Nikaido T,Burrow MF,Tagami J

更新日期：2002-11-01 00:00:00

abstract：:In this laboratory study, the microtensile bond strengths (μTBS) of resin-modified glass ionomer cement (RM-GIC) to sound and artificial caries-affected bovine root dentin (ACAD) using three different conditioning agents were evaluated after 24 hours and three months. The fractured interface was examined with a scanni...

journal_title：Operative dentistry

authors： Saad A,Inoue G,Nikaido T,Ikeda M,Burrow MF,Tagami J

更新日期：2017-11-01 00:00:00

abstract：:Provisional restorations of full crown preparations may permit more microleakage of bacteria and their products than the final castings do. However, most investigations of the sealing qualities of cemented castings have reported that they too permit dye leakage. One approach to the problem is to seal the dentin with d...

journal_title：Operative dentistry

authors： Pashley EL,Comer RW,Simpson MD,Horner JA,Pashley DH,Caughman WF

更新日期：1992-01-01 00:00:00

abstract：:This study evaluated the five-year clinical performance of ceramic inlays and onlays made with two systems: sintered Duceram (Dentsply-Degussa) and pressable IPS Empress (Ivoclar Vivadent). Eighty-six restorations were placed by a single operator in 35 patients with a median age of 33 years. The restorations were ceme...

journal_title：Operative dentistry

authors： Santos MJ,Mondelli RF,Navarro MF,Francischone CE,Rubo JH,Santos GC Jr

更新日期：2013-01-01 00:00:00

abstract：:This study investigated the effect of two base materials with different elastic moduli (F2000 and Vitrebond) on the fracture load of machinable ceramic inlays. Standardized MOD cavities were prepared in 18 human maxillary first or second premolars. The teeth were randomly assigned to three groups of six premolars each...

journal_title：Operative dentistry

authors： Banditmahakun S,Kuphausuk W,Kanchanavasita W,Kuphasuk C

更新日期：2006-03-01 00:00:00

abstract：PURPOSE:To investigate the effect of different light-curing units and depths on the degree of conversion (DC) through Fourier transform infrared spectroscopy (FTIR) and Knoop Hardness Number (KHN) of a silorane-based composite resin (Filtek LS, 3M ESPE, St Paul, MN, USA) (LS). MATERIALS AND METHODS:LS specimens mounte...

journal_title：Operative dentistry

authors： Torres SA,Silva GC,Maria DA,Campos WR,Magalhães CS,Moreira AN

更新日期：2014-05-01 00:00:00

abstract：OBJECTIVE::The study aimed to evaluate teaching trends and use of materials in direct posterior restorations during a 13-year period in an Israeli dental school. METHODS::Data registered in computerized files, relating to posterior restorations performed in the student clinic during the past 13 years (2004-2016), were...

journal_title：Operative dentistry

authors： Zabrovsky A,Mahmoud R,Beyth N,Ben-Gal G

更新日期：2018-11-01 00:00:00

abstract：:This study evaluated the regional tensile bond strength of a dual-cure resin composite core material to root canal dentin using photo and dual-cure adhesives and different modes of polymerization. Nineteen extracted premolars were decoronated and their root canals prepared to a depth of 8 mm and a width of 1.4 mm usin...

journal_title：Operative dentistry

authors： Foxton RM,Nakajima M,Tagami J,Miura H

更新日期：2003-09-01 00:00:00

abstract：:This review compares nine published studies conducted at the Indiana University School of Dentistry. Twenty-five products in four different systems were evaluated using the Trubyte Bioform Color Ordered Shade Guide and a Chroma Meter. The dentist-prescribed overnight bleaching delta mean shade guide value (DSGV) 10 we...

journal_title：Operative dentistry

authors： Matis BA,Cochran MA,Eckert G

更新日期：2009-03-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to compare in Class V composite restorations marginal leakage measurements obtained with microcomputed tomography (micro-CT) and scanning electron microscopy (SEM) observations. METHODS:Class V cavities were prepared on 10 human molars and restored using Optibond FL (Kerr, Orange, CA...

journal_title：Operative dentistry

authors： Rengo C,Goracci C,Ametrano G,Chieffi N,Spagnuolo G,Rengo S,Ferrari M

更新日期：2015-07-01 00:00:00

abstract：OBJECTIVES:This study aimed to assess the retention of metal copings luted to uremic teeth with five different luting agents. METHODS:A total of 35 sound natural molars was collected from uremic patients and randomly assigned into five groups (n=7). The teeth were prepared for metal copings using diamond tips and wate...

journal_title：Operative dentistry

authors： Ghazy MH,Aboumadina MM,Mahmoud SH

更新日期：2014-05-01 00:00:00

abstract：:A literature review was conducted on adhesive Class I and II restorations and nondestructive in vitro tests using the PubMed/Medline database for the 1995-2010 period. The first part of this review has presented and critically appraised selected literature dealing with the quality and in vitro behavior of adhesive Cla...

journal_title：Operative dentistry

authors： Dietschi D,Argente A,Krejci I,Mandikos M

更新日期：2013-09-01 00:00:00

abstract：OBJECTIVES:To evaluate the beam profile and the spectral output of monowave and polywave light-emitting diodes (LEDs) and their influence on the degree of conversion (DC) of bulk fill composites. METHODS:A monowave LED (Smartlite Focus, Dentsply) and a polywave LED (Valo Cordless, Ultradent) were characterized using a...

journal_title：Operative dentistry

authors： Rocha MG,de Oliveira D,Correa IC,Correr-Sobrinho L,Sinhoreti M,Ferracane JL,Correr AB

更新日期：2017-07-01 00:00:00

abstract：:A core foundation system is frequently used in endodontically treated teeth that suffer excessive loss of the coronal portion of their structure. The volumetric shrinkage of core foundation resins may create marginal gaps that influence the bonding ability and longevity of a restored tooth. Little is known about how a...

journal_title：Operative dentistry

authors： Uekusa S,Miyazaki M,Rikuta A,Kurokawa H,Moore BK

更新日期：2005-09-01 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：:The current study evaluated the chromatic influence of high, medium and low value composites on a dentin composite substrate (A2 shade) using spectrophotometric analysis. The specimens were divided into the following four groups: a) control (CG), entirely composed of dentin composite (n = 5); b) high value (GHV), dent...

journal_title：Operative dentistry

authors： Schmeling M,Meyer-Filho A,de Andrada MA,Baratieri LN

更新日期：2010-01-01 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：:This article reviews the literature concerning the pulpal effects of composite resin restorations. A number of aspects are addressed, including the composite resin materials themselves, bacterial leakage, acid-etch technique, and dentin bonding procedures. Guidelines for pulpal protection are discussed. ...

journal_title：Operative dentistry

authors： Swift EJ Jr

更新日期：1989-01-01 00:00:00

abstract：:The stronger the ceramic material, the longer the restoration stays in the mouth. The current study evaluated the two-year clinical performance of a strong ceramic system, IPS Empress II, with increased strength on onlay/inlay restorations of molars. Teeth from 35 patients, including three premolars and 32 molars, wer...

journal_title：Operative dentistry

authors： Tagtekin DA,Ozyöney G,Yanikoglu F

更新日期：2009-07-01 00:00:00

abstract：:This study evaluated the effect of two dentin disinfectants (Consepsis, Tubulicid), one aqueous HEMA solution (Aqua Prep), a combination of Aqua Prep and Tubulicid and an air abrasion treatment (50 microns aluminum oxide) on the shear bond strength (SBS) of two acetone-based single bottle adhesives (One Step and Prime...

journal_title：Operative dentistry

authors： Pilo R,Cardash HS,Oz-Ari B,Ben-Amar A

更新日期：2001-11-01 00:00:00

abstract：:The aim of this investigation was to verify the influence of 3 light curing units on the degree of conversion, using different irradiation conditions: 1) manufacturers' recommended times of photo-activation, 2) standardizing total energy density among the units and 3) standardizing energy density at the 450-490 nm wav...

journal_title：Operative dentistry

authors： Schneider LF,Consani S,Ogliari F,Correr AB,Sobrinho LC,Sinhoreti MA

更新日期：2006-07-01 00:00:00

abstract：:This study investigated the influence of light energy density (intensity x time) on the effectiveness of composite cure in view of the curing profiles of new light-polymerization units. This investigation used a digital microhardness tester to evaluate the hardness of the top/bottom surfaces and hardness ratio of 2 mm...

journal_title：Operative dentistry

authors： Yap AU,Seneviratne C

更新日期：2001-09-01 00:00:00

abstract：PURPOSE:To evaluate the effect of different strategies for post cementation on the pullout bond strength of a double-tapered glass fiber post cemented into a root canal. MATERIALS AND METHODS:The root canals of 70 single-rooted bovine teeth (16 mm-length) were prepared to 9 mm using the preparation drill of a double-t...

journal_title：Operative dentistry

authors： Amaral M,Santini MF,Wandscher V,Amaral R,Valandro LF

更新日期：2009-07-01 00:00:00

abstract：INTRODUCTION:Adding antibacterial agents to a dentin conditioner used for a glass ionomer cement (GIC) has been shown to be antibacterial; however, it is not known whether this antimicrobial conditioning agent affects the bond strength to dentin in situ. This study applied GIC to antibacterial conditioned dentin withou...

journal_title：Operative dentistry

authors： Botelho MG

更新日期：2005-05-01 00:00:00

abstract：:A technique of restoring Class II posterior restorations with resin-based composite and a pre-polymerized composite insert was presented. This technique is intended to aid the practitioner in obtaining tight, broad, proximal contacts without having to purchase special instruments or materials. This method is not time-...

journal_title：Operative dentistry

authors： Dunn WJ

更新日期：2004-07-01 00:00:00

abstract：:This study compared the thickness of the hybrid layer formed using Scotchbond Multi-Purpose Plus, Single Bond 2, Prime & Bond 2.1 and Xeno III on a dentin surface prepared with a diamond bur in a high speed handpiece or prepared with an Er:YAG laser used with two parameters of pulse energy (200 and 400 mJ) and two par...

journal_title：Operative dentistry

authors： de Barceleiro MO,Dias KR,Sales HX,Silva BC,Barceleiro CG

更新日期：2008-05-01 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：OBJECTIVES:It has been reported that bleaching generates an increase in the activity of osteoclasts in vitro. We quantified the RANK-L and IL-1β biomarkers in a double-blind, randomized clinical trial evaluating the in vivo effect of hydrogen peroxide (35%) and peroxide carbamide (37%) six months after whitening. METH...

journal_title：Operative dentistry

authors： Bersezio C,Estay J,Sáez M,Sánchez F,Vernal R,Fernández E

更新日期：2019-11-01 00:00:00

abstract：:The objective of this paper is to review the literature concerning factors affecting adhesion to mineralized tissues. Factors related to the physicochemical structure of the adherents and to the inherent properties of composite restorative materials, along with the postulated bonding mechanisms of current adhesive sys...

journal_title：Operative dentistry

authors： Van Meerbeek B,Lambrechts P,Inokoshi S,Braem M,Vanherle G

更新日期：1992-01-01 00:00:00

abstract：OBJECTIVE:To evaluate the effect of mechanical loading on the microtensile bond strength (MTBS) of five adhesive systems to dentin. METHODS:Flat dentin surfaces from human molars were divided into five groups and bonded with total-etch self-priming adhesives (Single Bond, Prime&Bond NT and Prime&Bond XP), two-step sel...

journal_title：Operative dentistry

authors： Toledano M,Osorio R,Albaladejo A,Aguilera FS,Tay FR,Ferrari M

更新日期：2006-01-01 00:00:00