Abstract:
PURPOSE:This prospective long-term clinical trial evaluated and compared the three-year clinical performance of an ormocer, a nanofilled, and a nanoceramic resin composite with that of a microhybrid composite placed in Class I and Class II cavities. METHODS:Forty patients, each with four Class I and II restorations under occlusion, were enrolled in this study. A total of 160 restorations were placed, 25% for each material, as follows: an ormocer-based composite, Admira; a nanofilled resin composite, Filtek Supreme XT; a nanoceramic resin composite, Ceram X; and a microhybrid resin composite, Tetric Ceram. A single operator placed all restorations according to the manufacturers' instructions. Immediately after placement the restorations were finished/polished. Clinical evaluation was performed at baseline and at yearly intervals after placement by two other independent examiners using modified US Public Health Service (USPHS) criteria. The changes in the USPHS parameters during the three-year period were analyzed with the Friedman test. Comparison of the baseline scores with those at the recall visits was made using the Wilcoxon signed rank test. The level of significance was set at p < 0.05. RESULTS:All materials showed only minor changes, and no differences were detected between their performance at baseline and after three years. Only two ormocer, one nanofilled, and one microhybrid restorations in molars failed because of loss of retention. Regarding the clinical performance, there were no statistically significant differences among the materials used (p>0.05). CONCLUSIONS:The ormocer, nanofilled, and nanoceramic composites provided acceptable clinical performance over a three-year period.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Mahmoud SH,El-Embaby AE,AbdAllah AMdoi
10.2341/12-313-Csubject
Has Abstractpub_date
2014-01-01 00:00:00pages
32-42issue
1eissn
0361-7734issn
1559-2863journal_volume
39pub_type
杂志文章abstract:OBJECTIVES:To evaluate the effect of application protocol in resin-enamel microshear bond strength (μSBS), in situ degree of conversion, and etching pattern of three universal adhesive systems. METHODS AND MATERIALS:Sixty-three extracted third molars were sectioned in four parts (buccal, lingual, and proximals) and di...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/15-213-L
更新日期:2016-09-01 00:00:00
abstract::The development of adhesive agents for bonding composite to dentin has rapidly evolved in recent years. It is postulated that dentin bond strengths in the range of 17 MPa are sufficient to resist the polymerization shrinkage of composite resins. The purpose of this study was to evaluate the shear bond strengths of the...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract::Post-operative sensitivity (POS) may be observed in recently placed posterior composites. Evidence-based guidelines for the management of posterior composites with POS have yet to be determined. This study examined a retrospective analysis of the findings of a unique multi-center clinical trial to investigate the five...
journal_title:Operative dentistry
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:2003-11-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the strengthening effect of resin composite, cured by a modified layering protocol, for teeth with simulated coronal fracture and weakened immature roots. METHODS:Fifty maxillary teeth were decoronated and their apices sectioned to standardize the length to 12 mm. Pr...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/12-525L
更新日期:2014-05-01 00:00:00
abstract::This study was designed to compare strength, elastic modulus (stiffness), and hardness for five composite resin materials that are used for laboratory-fabricated posterior composite restorations. Ten specimens of each material were processed according to the manufacturer's instructions. Statistical analysis indicated ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1994-11-01 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
pub_type: 杂志文章
doi:
更新日期:1997-05-01 00:00:00
abstract::V-shaped cervical cavities prepared in monkey teeth were restored with several dentin bonding systems, and the in vivo resin-dentin interfacial structures were observed under the scanning electron microscope using an argon-ion etching technique. The hybrid layer could be clearly observed; its depth was dependent on th...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1995-09-01 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
pub_type: 杂志文章
doi:10.2341/14-014L
更新日期:2015-07-01 00:00:00
abstract::Excessive etching of the dentin may decrease bond strength because the adhesive may fail to completely infiltrate to the base of the over-etched demineralized collagen network. The purpose of the present study was to evaluate the influence of increasing etching times on the microtensile bond strength of Single Bond an...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVES:To evaluate and compare the fracture toughness of dental CAD/CAM materials of different material classes intended for in-office milling (glass ceramics, hybrid, resin composites) and the influence of aging on this property. METHODS AND MATERIALS:The fracture toughness (critical intensity factor, KIc) values...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/18-161-L
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to present a case report of a patient affected by amelogenesis imperfecta showing a possible minimal and conservative adhesive treatment approach. CLINICAL PROCEDURE:A treatment philosophy of amelogenesis imperfecta is illustrated by means of a case report of a 14-year-old boy who c...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-437-S
更新日期:2013-05-01 00:00:00
abstract::This study examined the relationship between the bond agent application duration and the dentin bond strength of several single-application bonding systems. The restorative material/ bonding systems used were Reactmer, with its single-application bonding system Reactmer Bond (RB, Shofu Inc, Kyoto, Japan); Palfique Est...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVES:To evaluate the effect of minocycline and chlorhexidine pretreatment of acid-etched dentin on the longevity of resin-dentin bond strength (μTBS) and nanoleakage of two-step etch-and-rinse adhesives. METHODS:Before application of Prime & Bond NT and Adper Single Bond 2 in occlusal dentin, the dentin surfaces...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/15-023-L
更新日期:2016-09-01 00:00:00
abstract::This study investigated the effect of a crown-lengthening ferrule on the fracture resistance of endodontically-treated teeth restored with two dowel-core systems. Thirty-two extracted mandibular first premolars were sectioned perpendicular to the long axis at a point 1.0 mm occlusal to the buccal cementoenamel junctio...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/06-169
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:To evaluate, through the application of different dentin bonding systems, the influence of wetness on shear bond strength in enamel. METHODS:This study evaluated three etch-and-rinse adhesive systems (Scotchbond MP [used with and without primer]; Singlebond; and Prime&Bond 2.1) and two self-etching adhesive ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/10-163-L
更新日期:2011-05-01 00:00:00
abstract:UNLABELLED:Examining three bleaching systems, this in vivo clinical trial evaluated the relationship among tooth sensitivity, light activation, and agent concentration, and it correlated dental sensitivity with tooth thickness. MATERIALS AND METHODS:Eighty-seven volunteer patients were included. Inclusion criteria wer...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/12-335-C
更新日期:2013-09-01 00:00:00
abstract::Four resin based materials (Compolute Aplicap, ESPE; Variolink Ultra, Vivadent; C&B Metabond, Parkell and Panavia 21, Kuraray), two carboxylate cements (Poly-F Plus, Dentsply DeTrey and Durelon Maxicap, ESPE), two glass-ionomer cements (Fuji I, GC and Ketac-Cem Aplicap, ESPE), one resin-modified glass ionomer cement (...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2000-11-01 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
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract::This in vitro study assessed the effect of a step-cure light curing method on resin/dentin bond strength on the buccal wall of Class I cavities in human teeth. Occlusal enamel was removed to expose a flat dentin surface. Twenty four box-shaped cavities (C-factor = 4.5) were prepared in dentin. Prime&Bond 2.1 was appli...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/05-37
更新日期:2006-05-01 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
pub_type: 杂志文章
doi:10.2341/08-113
更新日期:2009-07-01 00:00:00
abstract::This investigation evaluated the stabilizing effect of glass fiber reinforced posts (FRP) luted with self-adhesive universal cement on the fracture resistance of excessively flared endodontically treated teeth (ETT). Values were compared to teeth with no ferrule, 2 mm ferrule and resin cement for luting with 2 mm ferr...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/05-142
更新日期:2006-11-01 00:00:00
abstract::Most currently marketed fluoride varnishes (FVs) have not been evaluated for their effectiveness in preventing dental caries. The objective of this study was to investigate the anticaries efficacy, measured as fluoride release into artificial saliva (AS); change in surface microhardness of early enamel caries lesions;...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/18-040-L
更新日期:2019-09-01 00:00:00
abstract::This study determined the relationship between marginal adaptation to dentin cavity preparations, tensile bond strength of the restorations, and mechanical properties of the composites. Contraction gaps, tensile bond strengths, flexural strengths, and Young's modulus of eight commercial resin composites were determine...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract:OBJECTIVES:The aim of this investigation was to test the tensile bond strength (TBS) between different computer-aided-design/manufacturing (CAD/CAM) ceramics after conditioning using different universal adhesive systems and resin composite cement. METHODS AND MATERIALS:Substrates of four CAD/CAM ceramics-1) VITABLOCS ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/18-017-L
更新日期:2019-07-01 00:00:00
abstract::This study compared the amount of artificial plaque synthesized in vitro by Streptococcus sobrinus on various dental materials using radioisotopes. In particular, plaque-retaining capacities of new types of ceramics were the focus of this study. Specimens were fabricated from the following materials (one amalgam alloy...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2001-07-01 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
pub_type: 杂志文章
doi:10.2341/16-046-L
更新日期:2017-01-01 00:00:00
abstract::The aim of the present study was to evaluate the effect of composite resin contamination with powdered and unpowdered latex gloves on the shear bond strength of etch-and-rinse and two-step self-etch adhesive systems. Standard flat dentin surfaces were prepared on the facial aspect of 120 bovine incisors and randomly a...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-088-L
更新日期:2012-09-01 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
pub_type: 杂志文章,随机对照试验
doi:10.2341/06-157
更新日期:2007-09-01 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
pub_type: 杂志文章,评审
doi:
更新日期:1989-01-01 00:00:00
abstract::This study investigated the influence of curing lights and modes on the cross-link density of dental composites. Four LED/halogen curing lights (LED-Elipar Freelight [FL], 3M-ESPE and GC e-light [EL], GC; high intensity halogen-Elipar Trilight [TL], 3M-ESPE; very high intensity halogen-Astralis 10 [AS], Ivoclar Vivade...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00