| Links |  |
Of Interest |
| Journal | Authors | |
| Subscribe | Reviewers | |
| Shopping Cart | Continuing Education | |
Number 1
Number 2
Number 3
Number 4
Number 5
Number 6
Editorial
Research
Bond Strengths of Single-Bottle Dentin Adhesives to Caries-Affected Dentin.
Clinical Relevance:
When bonding single-bottle adhesives to caries-affected dentin, 32-35% phosphoric acid is required as an etchant to achieve optimal bond strength.
Long-Term Effect of Dentin Primers on Enamel Bond Strength and Marginal Adaptation.
Clinical Relevance:
Dentin primers alone do not decrease the bonding performance of resin composites to enamel. Intensive rubbing of adhesives deteriorates long-term enamel bond strength and marginal adaptation.
Fluoride Release from Three Glass Ionomers, a Compomer, and a Composite Resin in Water, Artificial Saliva, and Lactic Acid.
Clinical Relevance:
The pH of the environment strongly affected fluoride release from the materials tested.
Marginal Adaption of Class V Restorations With and Without "Softstart-Polymerization".
Clinical Relevance:
"Softstart-polymerization" using a very low start curing light intensity does not provide better marginal adaption in Class V composite resin and polyacid-modified resin restorations.
Effect of Cavity Form and Setting Expansion of Refractory Dies on Adaptability of Fires Ceramic Inlays.
Clinical Relevance:
The cavity form and the setting expansion of refractory die materials have significant effects on the adaptability of fired ceramic inlays.
Dentin Bond Strength and Marginal Adaption After NaOCl Pre-Treatment.
Clinical Relevance:
Sodium hypochlorite treatment after etching dentin exhibited detrimental effects on marginal adaptation of totally bonded direct composite resins, independent of the adhesive system used.
Two-Year Clinical Comparison of a Microfilled and a Hybrid Resin-Based Composite in Non-Carious Class V Lesions.
Clinical Relevance:
Two groups of subjects received restorations in non-carious Class V lesions, one group with a microfilled composite and the other a small-particle hybrid composite. After 24 months there was no difference in the proportion of restorations retained.
Effect of Dentin Primer on Shear Bond Stength of Composite Resin to Moist and Dery Enamel.
Clinical Relevance:
The use of dentin primer on enamel seems to be essential to obtain acceptable bond strengths when enamel is moist and does not affect bond strengths when enamel is dry.
Invited Paper
Operative Dentistry for the New Millennium: A Problem Specific Approach to Operative Dentistry
Commentary
Excellence in Diagnosing Failures: A Challenge for the 21st Century.
Awards
AAGFO Distinguished Member Award:
Operative Pearls
Custom Provisional Restorations: Simple, Fast and Accurate
Abstracts
Book Reviews
Editorial
Research
Durability of Enamel Bond Strength of Simplified Bonding Systems.
Clinical Relevance:
Some of the recently introduced simplified bonding systems showed decreased enamel bond strengths after thermal cycling and it was dependent on the systems employed.
Microhardness of Carious Decidous Dentin.
Clinical Relevance:
The dentin in all regions on the carious side of deciduous teeth was significantly softer than sound dentin, and thus, may require different treatments to optimize bonding for restorations.
Single-Crystalline Ceramic Whisker-Reinforced Carboxylic Acid-Resin Composites with Fluoride Release.
Clinical Relevance:
Carboxylic acid-resin composites containing ceramic whiskers and fluorosilicate glass release fluoride and possess flexural strength and work-of fracture substantially higher than those of a traditional glass ionomer, a resin-modified glass ionomer, or a compomer.
Polymerization Shrinkage of Visible-Light-Cured Composites.
Clinical Relevance:
Conventional and Polyacid-modified composite resin shrinkage continues after removal of the cruing light and is greatest at one hour. Composite restorations, if polished immediately after light curing, should be rechecked after one month to determine if re-polishing is required.
Fluoride Uptake Around Cavity Walls; Two-Dimensional Mapping by Electron Probe Microanalysis.
Clinical Relevance:
Two-dimensional mapping of fluoride uptake around cavity walls could provide useful information in the development of new fluoride-releasing restorative materials.
Effectiveness of Polymerization in Composite Restoratives Claiming Bulk Placement: Impact of Cavity Depth and Exposure Time.
Clinical Relevance:
The composite restoratives evaluated should not be placed in increments greater than 2 mm in order to ebtain uniform and maximum polymerization. The findings did not support the manufacturer's claim of "bulk placement."
Literature Review
Bonding of Amalgam Restorations: Existing Knowledge and Future Prospects.
Clinical Relevance:
Numerous in vitro studies have demonstrated potential advantages with bonded amalgam, including improved retention, decreased microleakage, and possible tooth reinforcement. However, the few in vivo studies available show little advantage for bonding traditional amalgam preparations with mechanical undercuts.
Invited Paper
The Full Gold Crown: An Overview.
Awards
AAGFO Clinician of the Year Award:
Operative Pearls
E-Z Gold for Repair of Abraded and Eroded Cusp Tips
Abstracts
Book Reviews
In Memoriam
Miles R Markley
Editorial
Operative Dentistry in the Academic World
Clinical Research
The Efficacy of reservoirs in Bleaching Trays.
Clinical Relevance:
The use of bolckout spacers to create bleaching-solution reservoirs does not increase the success of home bleaching.
Three-Year clinical Evaluation of a Polyacid-Modified resin Composite (Dyract).
Clinical Relevance:
Retention of a polyacid-modified resin composite in cervical non-stress bearing areas was excellent after three years. However, marginal discoloration remains a concern.
Short-Term Dentin Bridging of Mechanically-Exposed Pulps Capped with Adhesive Resin Systems.
Clinical Relevance:
Adhesive resin systems can protect mechanically-exposed pulps, allowing dentin bridging to occur.
Laboratory Research
Comparison of Conventional vs Self-Etching Ashesive Bonds to Caries-Affected Dentin.
Clinical Relevance:
The benefits of moist bonding can be extended to include caries-affected dentin when using Single Bond.
Effect of Food-Simulating Liquids on Surface Characteristics of Composite and Polyacid-Modified Composite Restoratives.
Clinical Relevance:
Silux Plus, Z100 and P50 appeared to be more susceptible to the softening effects of some food-simulating liquids which could result in increased clinical wear. The large increase in surface roughness of Dyract AP could encourage plaque accumulation in vivo.
Effect of Restoration Size on Fracture Resistance of Bonded Amalgam Restorations.
Clinical Relevance:
Amalgambond-Plus (with HPA) significantly improved the fracture strength of small proximocclusal amalgam restorations, but did not improve or degrade the fracture strength of large proximocclusal amalgam restorations.
Edge-Bevel Fracture Resistance of Three Direct-Filling Materials.
Clinical Relevance:
The "edge strength" fracture resistance of a hand-consolidated (condensed) experimental silver filling material is similar to that of dispersed-phase amalgam and should perform clinically in a manner comparable to amalgam at cavosurface margins.
The Effect of Depth of Dentin Demineralization on Bond Strengths and Morphology of the Hybrid Layer.
Clinical Relevance:
The utilization of different phosphoric acid gels to etch dentin results in different thicknesses of the hybrid layer. It does not, however, affect the bond strengths associated with the one-bottle adhesive systems tested when dentin is etched for 15 seconds.
The Influence of Blood Contamination on Bond Strengtha Between Dentin and an Adhesive Resin Cement.
Clinical Relevance:
Contamination by blood of any conditioned dentin surface immediately prior to bonding reduced the bond strength between adhesive resin cement and the dentin. The strength was restored at any stage of the adhesive process by washing away the blood, air-drying, and applying a self-etching primer.
Effect of Food-Simulating Liquids on the Flexural Strength of Composite and Polyacid-Modified Composite Restoratives.
Clinical Relevance:
The flexural strengths of the composites were, in general, significantly higher than their polyacid-modified counterparts after conditioning in various aqueous solutions. Clinical usage of polyacid-modified composites in stress-bearing areas should, therefore, be done with caution.
Repair Strength of Etched vs Silica-Coated Metal-Ceramic and All-Ceramic Restorations.
Clinical Relevance:
Silica coating represents an effective method for repair of porcelain-fused-to-metal and all-ceramic restorations, enabling simultaneous treatment of ceramic and metal.
Factors Affecting Shear Bond Strength of Composite Resin to Fluorosed Human Enamel.
Clinical Relevance:
Age affects shear bond strength of composite resin to fluorosed teeth; when fluorosis is severe, bond failur is most likely to be cohesive in enamel.
Rigidity and Retention of Ceramic Root Canal Posts.
Clinical Relevance:
Tapered, smooth ceramic root canal posts were more rigid but less retentive in roots than similar-sized parallel-sided stainless steel posts.
Marginal Hybrid Layer in Class V Restorations.
Clinical Relevance:
The quality of the hybrid layer created in dentin at the external margin of resin composite restorations (termed the marginal hybrid layer) may determine the longevity of such restorations, for it is very thin and exhibits porosities and grooves, indicating that it is not completely infiltrated with resin.
Clinical Techniques/Case Reports
Techniques in Recording Centric Relation.
Expideted Custom Post and Core Technique.
Conservative Anterior Tooth Replacement Using Fiber-Reinforced Composite.
Awards
AOD Award of Excellence:
AOD Hollenback Memorial Prize:
Editorial
Clinical Research
Tooth-colored Filling Materials for the Restoration of Cervical Lesions: A 24-Month Follow-Up Study.
Clinical Relevance:
The clinical performance of resin-bas4ed Class V restorations was significantly better than that of resin-modified glass ionomers when comparing the materials evaluated in this study.
Class II Restorations with a Polyacid-Modified Composite Resin in Primary Molars Placed in a Dental Practice: Results of a Two-Year Clinical Evaluation.
Clinical Relevance:
In the everyday situation, both a polyacid-modified composite resin and a hybrid composite can be recommended for restoration in Class II cavities in primary molars.
Laboratory Research
Antibacterial Activity of Resin Adhesives, Glass Ionomer and Resin-Modified Glass Ionomer Cements and a Compomer in Contact with Dentin Caries Samples.
Clinical Relevance:
Using chlorhexidine as a positive control, this study demonstrated considerable variation in the antimicrobial effects of the materials tested.
The Use of Resin Composite Pins to Improve Retention of Class IV Resin Composite Restorations.
Clinical Relevance:
The use of an intracoronal resin composite pin may improve the retention of Class IV resin composite restorations.
Effect of Sealant Viscosity on the Penetration of Resin into Etched Human Enamel.
Clinical Relevance:
High viscosity sealants tested did not penetrate far enough into etched enamel to reach the depth of acid etching which may affect their ability to maintain good marginal seals.
Bond Strength of Compomers to Human Enamel.
Clinical Relevance:
The highest tensile bond strengths for compomer restorative materials to enamel were attained using phosphoric acid etching, primers, and moist bonding surfaces.
Microleakage of Light-Cured Resin and Resin-Modified Glass-Ionomer Dentin Bonding Agents Applied with Co-Cure Vs Pre-Cure Technique.
Clinical Relevance:
A significant Decrease in microleakage was noted for Class V resin composite restorations where dentin bonding agents were used.
Bond Strengths of a Porcelain Material to Different Abutment Substrates.
Clinical Relevance:
The bond strength of a single-unit all-porcelain material to the substrates present on the surface of the abutments was evaluated. Amalgam and gold showed significantly lower bond strength values than enamel, dentin and composite resin.
Flow Characteristics and Sealing Ability of Fissure Sealants.
Clinical Relevance:
Viscosity and flow properties of fissure sealants do not appear to affect their sealing ability.
Three-Dimensional Optical Profilometry Analysis of Surface States Obtained After Finishing Sequences for Three Composite Resins.
Clinical Relevance:
The clinical purpose of this study was to check the best finishing method on three composite resins.
Microleakage of Bonded Amalgam Restorations: Effect of Thermal Cycling.
Clinical Relevance:
In Vitro data indicate that universal adhesive dentin systems, when used to bond alamgam restorations, reduce microleakage only when the restorations do not undergo thermal cycling.
Technique Sensitivity of Dentin Bonding: Effect of Application Mistakes on Bond Strength and Marginal Adaptation.
Clinical Relevance:
Strict accordance to recommended application protocols is essential for successful bonding to dentin. Application mistakes when using dentin adhesive systems resulted in dramatically lower bond strengths and percentages of gap-free margins.
Physical Properties of Three Packable Resin-Composite Restorative Materials.
Clinical Relevance:
The results of fracture toughness, transverse strength and elastic modules revealed significant differences among high-performance packable resin composites and conventional hybrid composites.
Cumulative Assessment of Factors Leading to Restorative Decisions in an Educational Environment A Graphical Demonstration Using an In Vitro Case.
Clinical Relevance:
The more abundant the shortcomings of restorations and signs denoting caries, the more frequent and sooner restorative interventions were proposed in a series of in vitro evaluations.
Clinical Techniques/Case Reports
Foreign Body Gingivitis Associated with a New Crosn: EDX Analysis and Review of the Literature.
Clinical Relevance:
Abrasive tools and materials used in or near the gingival margin may drive microscopic foreign particles into the gingival connective tissue, causing chronic inflammation known as foreign body gingivitis.
Editorial
The Crossroads of Operative Dentistry: Being on the Right Track is Not Enough!!
Buonocore Memorial Lecture
Adhesive Dentistry in the 21st Century.
Clinical Research
Clinical Performance of Class II Resotrations in Which Resin Composite is Laminated Over Resin-Modified Glass-Ionomer.
Clinical Relevance:
Resin composite/resin-modified glass-ionomer open laminates appear to be as effective as resin composites when used for restoring Class II cavities.
Review of Bonded Amalgam Restorations, and Assessment in a General Practice over Five Years.
Clinical Relevance:
This long-term, double-blinded clinical study was unable to substantiate that bonded amalgam restorations show fewer failures and marginal deterioration than similar restorations placed in permanent teeth using a cavity varnishing lining.
Cervical Compomer Restorations: The Role of Cavity Etching in a 48-Month Clinical Evaluation.
Clinical Relevance:
This 48 month follow-up demonstrated that enamel and dentinal etching improves long-term marginal adaptation of compomer restorations in Class V cavities.
Laboratory Research
Fracture Resistance of Five Pin-Retained Core Build-Up Materials on Teeth With and Without Extracoronal Preparation.
Clinical Relevance:
Amalgam core build-ups may provide the greatest resistance to fracture on teeth prior to preparation, but the strength of the amalgam core is reduced following preparation for a crown. When amalgam is used as a core build-up material, care should, therefore, be exercised to minimize the extent of the subsequent preparation if resistance to fracture is to be maximized. Prepared core build-ups in hybrid composite provided the highest fracture resistance.
Effect of Collagen Removal on Shear Bond Strength of Two Single-Bottle Adhesive Systems.
Clinical Relevance:
Using sodium hypochlorite to remove collagen may enhance bond strength between resin and dentin when an acetone-based adhesive system is used.
Influence on Dentin Conditioning and Contamination on the Marginal Integrity of Sandwich Class II Restorations.
Clinical Relevance:
Sandwich Class II restorations show better marginal integrity than composite restorations and might be less sensitive to saliva/blood contamination.
Bonded Amalgam Restorations: Using a Glass-Ionomer as an Adhesive Liner.
Clinical Relevance:
Fuji-II glass-ionomer cement, when used as an adhesive liner for amalgam restorations, may effectivly reinforce the remaining tooth structure and, therefore, enhance the fracture resistance of the amalgam-restored teeth.
In Vivo Examination of the Scotchbond Multi-Purpose Dental Adhesive System in Rat (Vitalmicroscopic Study)
Clinical Relevance:
Resin Composite bonding agents applied directly onto a thin layer of dentin showed acute vasodilating effects on rat pulpal microvessels.
Resistance to Condensation of 'Condensable' Resin Composites as Evaluated by a Mechanical Test.
Clinical Relevance:
Condensable resin composites are unlikely to facilitate restoration of acceptable proximal contacts in Class II restorations.
Metal Surface Treatment: Characterization and Effect on Composite-to-Metal Bond Strength.
Clinical Relevance:
The superior bond strength found using air-abrasion of metal with CoJet-Sand in combination with silane, may assist clinicians in providing greater long-term clinical success for resin bonded to metal restorative procedures.
Solubility and Sorption of Resin-Based Luting Cements.
Clinical Relevance:
Hygroscopic expansion and deterioration of luting cements can result from the marginal discrepancy of restorations. Previous studies have shown that hygroscopic expansion of resin-modified glass-ionomer cements occur as a result of water sorption (Kanchanavasita, Anstice & Pearson, 1997). This expansion may initially compensate for polymerization shrinkage; however, some concern has been raised regarding the forces produced against the tooth and restoration as a result of hygroscopic expansion (Momoi & McCabe, 1994). Clinical concern regarding the solubility of luting cements revolves around the deterioration of a luting cement, which may result in breakdown of the material and potential recurrent decay followed by failure of the restoration. In this study, all resin-modified glass-ionomer cements showed significantly higher water sorption and lactic acid solubility compared to composite cements.
Post Retention and Post/Core Shear Bond Strength of Four Post Systems.
Clinical Relevance:
The Para Post XT, because of its retentive capabilites and greater resistance to root fracture, is most likely to give successful clinical results in most situations.
Effect of Three Surface Sealants on Marginal Sealing of Class V Composite.
Clinical Relevance:
The rebonding agent, when applied on polymerized composite resin restorations, contributes to a reduction in the degree of microleakage at dentin and cementum margins, thus increasing the marginal integrity.
Editorial
Operative Dentistry: The First Twenty-Five Years
Clinical Research
Leucite-Reinforced Glass Ceramic Inlays and Onlays After Six Years: Clinical Behavior.
Clinical Relevance:
Adhesively luted IPS Empress inlays and onlays showed an acceptable clinical behavior, exhibiting a 7% failure rate after six years of clinical service.
Leucite-Reinforced Glass Ceramix Inlays After Six Years: Wear of Luting Composites.
Clinical Relevance:
The wear of a conventional low-viscosity luting composite was similar to a minifilled hybrid resin composite restorative material used for luting of ceramic inlays after six years of clinical service.
Eight-Year Clinical Evaluation of Fired Ceramic Inlays.
Clinical Relevance:
The in vivo longevity of fired ceramic inlay restorations dropped from 92% to 80% between the sixth and eighth year after restoration because bulk fracture occurred in five cases (11%) during these two years.
Laboratory Research
Brushing Abrasion of Luting Cements Under Neutral and Acidic Conditions.
Clinical Relevance:
A material with low-brushing abrasion should be used for cementing a restoration with an inevitable marginal gap. The brushing abrasion resistance of the luting material in an acidic environment should be considered if the patient shows patterns of erosive tooth wear or tends to accumulate plaque.
Marginal Seal of Resin-Modified Glass Ionomers and Compomers: Effect of Delaying Polishing Procedure After One-Day Storage.
Clinical Relevance:
The marginal seal of resin-modified glass ionomers is enhanced by delaying polishing for one day. Delaying was not necessary for a componer.
Effect of Dentin Deproteinization on Microleakage of Class V Composite Restorations.
Clinical Relevance:
The formation of gaps occurred at the dentin/cementum margins of Class V restorations regardless of the presence of a hybrid layer.
Retentive Strength of an Amalgam Bonding Agent: Chemical vs Light vs Dual Curing.
Clinical Relevance:
The light-cured and dual-cured (light and chemical) versions of a bonding agent provided greater retention for an amalgam restoration than did the chemical-cured restoration.
Evaluation of Dental Adhesive Systems with Amalgam and Resin Composite Restorations: Comparison of Microleakage and Bond Strength Results.
Clinical Relevance:
The use of an adhesive significantly influenced bond strength and the extent of microleakage in both amalgam and resin composite restorations.
Color Stability of Fluoride-Containing Restorative Materials.
Clinical Relevance:
There are visual color differences between products of the same vita shade and the color stability and stain resistance varies between materials.
The Effect of Tooth Preparation on Microleakage Behavior.
Clinical Relevance:
Teeth bonded and restored with composite resin exhibited less microleakage with acid-etched cavities than with non-etched cavities irrespective of the method of cavity preparation.
Effect of Finishing and Polishing Procedures on the Surface Roughness of Packable Composites.
Clinical Relevance:
Aluminum-oxide discs produced the smoothest surfaces as compared to five other finishing and polishing procedures for three packable and one hybrid composite restorative material.
Handpiece Coolant Flow Rates and Dental Cutting.
Clinical Relevance:
Increasing the coolant flow rate during tooth preparation procedure should maximize cutting efficiently and result in improved practice efficiency.
Effects of Cavity Form and Setting Expansion of Refractory Dies on Adaptability of Class II (MO and MOD) Fired Ceramic Inlays.
Clinical Relevance:
The setting expansion of refractory die material has significant effects on the adaptability of Class II (MO and MOD) fired ceramic inlays.
(C) Operative Dentistry, 2000