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 dentin bonding agents at the completion of the crown preparation. This study evaluated the ability of six different dentin bonding agents to seal the dentin of crown preparations of human teeth in vitro using two independent techniques. The first technique quantitated fluid filtration across dentin before and after treatment with dentin bonding agents at one hour, one day, one week, and one month and after thermocycling. The second method measured silver nitrate penetration of the thin veneers of dentin bonding agents into the dentin. Both methods correlated well with each other. The best seals were obtained with Prisma Universal Bond 2 or Superbond powder plus liquid. The worst seals were found using Gluma and Superbond liquid only. Clearfil PhotoBond, Amalgambond, and Scotchbond 2 gave intermediate results. Although the dentin bonding agents tend to accumulate on chamfers, thereby increasing their thickness to 200-300 microns, the method looks promising as a simple way to protect the pulp from the consequences of microleakage.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Pashley EL,Comer RW,Simpson MD,Horner JA,Pashley DH,Caughman WFkeywords:
subject
Has Abstractpub_date
1992-01-01 00:00:00pages
13-20issue
1eissn
0361-7734issn
1559-2863journal_volume
17pub_type
杂志文章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
pub_type： 杂志文章
doi：10.2341/12-284-T
更新日期：2013-07-01 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：OBJECTIVE:The purpose of this study was to evaluate the effects of different desensitizing agents on the prevention of root caries when applied to root surfaces. MATERIALS AND METHODS:Thirty human roots were sectioned into quarters with a 3 × 4 mm window. A desensitizer (VX, Clinpro™ XT Varnish; SP, Seal & Protect®; o...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/11-007-L
更新日期：2012-05-01 00:00:00
abstract：:This study evaluated the cytotoxicity of four single component dentin bonding agents: Syntac Single Component, Prime & Bond 2.1, Single Bond and One Up Bond F. The test materials were applied on dentin discs of dentin barrier models in the same way as in the clinical procedures recommended by each manufacturer. Cell v...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：:The reasons for placement and replacement and the longevity of amalgam restorations were recorded by 62 Italian private practitioners. The survey compiled 1935 amalgam restorations inserted due to primary caries (59%) and failed restorations (41%). The clinical diagnosis of secondary caries constituted 59% of failures...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：OBJECTIVES:Published transmission electron microscopy analysis of in vitro resin-dentin bonds shows that, after 44 months, almost 70% of collagen fibrils from the hybrid layer disappear. Matrix metalloproteinases (MMPs) play an important role in that process and are thought to be the main factor responsible for the sol...
journal_title：Operative dentistry
pub_type： 杂志文章,随机对照试验
doi：10.2341/12-425-L
更新日期：2014-03-01 00:00:00
abstract：:This study compared the surface finish of eight different types of aesthetic restorative materials. The materials included resin-modified (Fuji II LC [FL], GC) and highly viscous (Fuji IX GP Fast [FN], GC) glass ionomer cements, a compomer (F2000 [FT], 3M-ESPE), minifilled (Z100 [ZO], 3M-ESPE) and microfilled (A110 [A...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2004-01-01 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: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
pub_type： 杂志文章
doi：10.2341/14-331-L
更新日期：2016-03-01 00:00:00
abstract：:This study evaluated the effects of acid etching of the enamel and the combination of different light sources (halogen light, light-emitting diodes [LEDs], and LED/Laser) and the bleaching product on color change, penetration of hydrogen peroxide (H2O2), and cytotoxicity over time. The color change (ΔE) and the amount...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/14-364-L
更新日期：2016-01-01 00:00:00
abstract：:Dental fluorosis is a developmental disturbance of enamel caused by excessive fluoride on ameloblasts during enamel formation. Patients often present to the dentist with a main goal of improving their esthetic appearance. This case report describes a minimally invasive technique for treating a severe case of enamel fl...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/12-238-S
更新日期：2013-07-01 00:00:00
abstract：:This study evaluated (1) the effect of known reductions in the output of curing lights on the depth of cure of various resins as determined by hardness measurements, and (2) the ability of the clinician to detect reduced light output by use of an explorer to compare the hardness of the top and bottom surfaces of resin...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：:Class V restorations are a very common occurrence in clinics. Some reasons include an increase in non-carious cervical lesions (NCCL), root caries and the elderly population. Unfortunately, Class V restorations also represent one of the less durable types of restorations and have a high index of loss of retention, mar...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/09-310-TR
更新日期：2010-05-01 00:00:00
abstract：:Various core materials with different shades affect the final color of high-translucency monolithic zirconia restorations. The blue core shows the greatest color difference in final zirconia restorations followed by metal, A3 dentin-shade resin core, and white core. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/19-238-L
更新日期：2020-12-21 00:00:00
abstract：:While a one-year report had been previously published, this study was undertaken to evaluate the clinical performance and appearance of a resin-modified glass ionomer and a resin composite over two years. Thirty-seven pairs of restorations of FujI II LC and Z 250/Single Bond were placed in caries-free cervical erosion...
journal_title：Operative dentistry
pub_type： 临床试验,杂志文章,随机对照试验
doi：
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
pub_type： 杂志文章,评审
doi：10.2341/08-74
更新日期：2009-03-01 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
pub_type： 杂志文章,评审
doi：10.2341/17-208-T
更新日期：2018-07-01 00:00:00
abstract：:Good wettability is one of the desirable physical properties of mercury-free gallium-based alloys (Gallium Alloy GF). However, wettability, while providing good adhesion to the cavity wall, has the adverse effect of causing stickiness to the inside of the capsule during mixing, and also to the metal hand instruments u...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:The tested hypotheses of this study were that dentin enamel bonding agents (DBAs) proposed for compomers create a hybrid layer (HL) that seals the margins of Class V restorations and HL is free from voids or gaps on both enamel and dentin margins. For purposes of this study, Class V restorations (n = 70) were made in ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:This case report illustrates how to restore severely compromised teeth with direct composite restorations. The size of the restorations presented is often considered by dentists as being a contraindication for direct composites. Hence, the technique is explained step by step, addressing the crucial points. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/15-001-T
更新日期：2016-09-01 00:00:00
abstract：:A fundamental issue of restorative treatment is assessing the different conditions of cases not only from tooth-to-tooth but also from the activity of each caries lesion and the size of the cavity. In addition, restorative treatment is sometimes carried out for prosthetic and cosmetic purposes and involves cutting sou...
journal_title：Operative dentistry
pub_type：
doi：
更新日期：2002-05-01 00:00:00
abstract：:The purpose of this study was to find out the degree to which eugenol-containing temporary cements or temporary filling materials affected shear bond strength of a dual-cure resin luting cement to acid-etched enamel. For this purpose 56 human caries-free third molars were embedded in acrylic resin and cross sectioned ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1998-03-01 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
pub_type： 杂志文章
doi：
更新日期：2005-05-01 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
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：:The purpose of this study was to determine the relationship between the deterioration and the later failure of a very large number of amalgams and anterior resin composites examined over periods of up to 16 years. Assessments were made of the deterioration of various clinical factors or characteristics of the restorat...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1993-07-01 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
pub_type： 杂志文章
doi：10.2341/05-81
更新日期：2006-07-01 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：:The molar proximal half-crown cast gold restoration may be an ideal choice for the conservative treatment of teeth with only one compromised proximal aspect. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/10-T1
更新日期：2010-03-01 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
pub_type： 杂志文章
doi：10.2341/18-091-L
更新日期：2019-03-01 00:00:00
abstract：:On occasion we receive manuscripts that we would like to publish, but do not have the page room to include in the print journal. For the full article, please go to www.jopdentonline.org or enter the provided address into your address bar. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/1559-2863-43.5.561
更新日期：2018-09-01 00:00:00
