ABSTRACT
Achievement of an excellent contact, one that provides a natural look and feel, reproducing the natural tooth contact or sometimes improving it, can be achieved in many ways. Understanding the separate issues of tightness and anatomy is crucial to achieving the desired result. In most cases, use of a contoured sectional matrix and McKean-style ring is the surest way to achieve the desired result. Unusual circumstances, such as wide preparations and malpositioned teeth, call for innovative techniques, some of which are illustrated in this article.
Subject(s)
Dental Restoration, Permanent/methods , Tooth/anatomy & histology , Dental Cavity Preparation/instrumentation , Dental Cavity Preparation/methods , Dental Materials/chemistry , Dental Restoration, Permanent/instrumentation , Esthetics, Dental , Humans , Malocclusion/complications , Matrix Bands/classification , Periodontal Diseases/complications , Rubber Dams , Stress, Mechanical , Surface PropertiesSubject(s)
Composite Resins , Dental Restoration, Permanent/methods , Acid Etching, Dental/adverse effects , Bicuspid , Composite Resins/chemistry , Composite Resins/economics , Dental Amalgam/economics , Dental Restoration Failure , Dental Restoration Wear , Dental Restoration, Permanent/classification , Dental Restoration, Permanent/economics , Dental Restoration, Permanent/instrumentation , Dentin Sensitivity/prevention & control , Dentin-Bonding Agents/chemistry , Fees, Dental , Humans , Matrix Bands , Molar , Surface Properties , Time FactorsABSTRACT
A gold-acrylic resin abutment for a removable partial denture was esthetically and functionally restored with a bonded Artglass facing. Surface preparations utilized were intraoral sandblasting and tin plating. An adhesive resin composite, Panavia 21, bonded the new Artglass facing to the prepared gold surface of the abutment.
Subject(s)
Crowns , Dental Bonding , Dental Veneers , Glass Ionomer Cements , Phosphates , Resin Cements , Silicate Cement , Acrylic Resins , Dental Polishing , Dental Prosthesis Design , Dental Prosthesis Repair , Electroplating , Gold Alloys , Humans , TinABSTRACT
Problems encountered in placement of posterior resin composite restorations have limited their clinical application. This article identifies and solves 4 of the frequently encountered problems: establishment of tight and anatomically correct contacts, refinement of occlusion, postoperative sensitivity, and time required for the procedure. A posterior resin composite is placed using a self-etching primer. A novel matrix, flowable composite, and bite-formed occlusion facilitate the clinical procedure.
Subject(s)
Composite Resins , Dental Restoration, Permanent/methods , Acid Etching, Dental , Composite Resins/chemistry , Dental Marginal Adaptation , Dentin Sensitivity/prevention & control , Dentin-Bonding Agents , Humans , Matrix Bands , Methacrylates , Occlusal Adjustment , Rheology , Rubber Dams , Time Factors , ViscosityABSTRACT
A new type of material is being introduced to American dentistry. The material is a polymer glass, tested in Europe as Artglass. The material is purported to be equal to or better than porcelain for esthetic dentistry. The strength, color translucency, and color vitality allow minimal destruction of enamel for esthetics. An Artglass occlusal is less abrasive to enamel than porcelain and approximates gold. The characteristics of this material system introduces "minimal invasive dentistry" to routine dental repair and reconstruction. A case study of the senior author's reconstruction of his anterior teeth is presented.
Subject(s)
Dental Restoration, Permanent/methods , Dental Veneers , Denture Design , Denture, Partial, Fixed , Glass Ionomer Cements , Glass , Silicate Cement , Dental Bonding , Humans , Male , Metal Ceramic Alloys , Polymers , Silicon DioxideABSTRACT
A new polymer glass, Artglass, is utilized for esthetic modification of an existing porcelain-fused-to-metal fixed partial denture. The masking ability of the polymer glass is demonstrated. A procedure is described for simultaneous adhesion of the Artglass to multiple intraoral surfaces.
Subject(s)
Dental Materials , Dental Veneers , Denture Repair/methods , Denture, Partial, Fixed , Glass Ionomer Cements , Glass , Polymers , Silicate Cement , Dental Bonding , Dental Porcelain , Dentin , HumansSubject(s)
Dental Porcelain , Dental Veneers , Prosthesis Coloring/methods , Composite Resins , HumansABSTRACT
Recent advances in adhesive monomers and surface preparation methods allow strong resin adhesion to all intraoral metal surfaces. Resin-metal bond strengths may exceed typical resin-etched enamel bonds. Innovations in prosthetic procedures have resulted. Data for metal adhesion are reviewed and the use of intraoral metal adhesion to finalize an occlusal rehabilitation is illustrated. Included in the metal surface preparations are intraoral sandblasting and intraoral tin plating.
Subject(s)
Dental Alloys , Dental Bonding , Dental Occlusion, Traumatic/rehabilitation , Inlays , Resin Cements , Dental Occlusion, Balanced , Dental Occlusion, Traumatic/complications , Electroplating/methods , Gold Alloys , Humans , Phosphates , Resins, Synthetic , Surface Properties , Tooth Abrasion/etiologyABSTRACT
A technique is described for novel placement of posterior composites. Two frequently encountered problems are eliminated with this technique: difficulty in achieving good interproximal contacts and composite shrinkage away from the tooth. The desirability of indirect composites is questioned in view of recent research and the technique for direct composites described.
Subject(s)
Composite Resins , Dental Restoration, Permanent/methods , Bicuspid , Dental Cavity Preparation , Matrix Bands , MolarABSTRACT
Phosphoric acid etching of dentin is critically reexamined in view of current adhesive resin development. Research and clinical experience both suggest that "total etch," the simultaneous etching of dentin and enamel, is a rational protocol with many modern adhesive resins.
Subject(s)
Acid Etching, Dental , Composite Resins , Dental Bonding , Dentin , Animals , Dental Cavity Preparation , Dental Enamel , Dental Restoration, Permanent , Dentin/ultrastructure , HumansABSTRACT
A repair technique is presented for elimination of "black line" crown margins and extension of margins onto cervical surfaces. A resin bonding agent that adheres simultaneously to metal, porcelain, and dentin is utilized to expedite completion of the repair. The bonding resin is opaqued with a light-curing, filled resin and then covered with a suitable composite resin. This technique updates a previously published technique by eliminating glass-ionomer cement liners and liner etching and improves both efficiency and esthetics of the repair.
Subject(s)
Composite Resins , Crowns , Dental Bonding/methods , Denture Repair/methods , Resin Cements , Dental Alloys , Dental Porcelain , Electroplating , Esthetics, Dental , Humans , Surface Properties , TinABSTRACT
A technique is presented for repair of fatigue-fractured fixed partial dentures with an overlaid, bonded porcelain/metal repair. The repair techniques utilize recent advances in resin-to-metal and resin-to-porcelain adhesion. Clinical procedures are given for adhesion of repair castings to intraoral porcelain or metal surfaces. Metal surface preparation techniques depend on the chemistry of the metal and include intraoral tin plating of noble metals. Direct adhesion of composite resin luting agents is used for base metals.
Subject(s)
Dental Cements , Dental Porcelain , Denture Repair/methods , Phosphates , Resin Cements , Resins, Synthetic , Adhesives , Aged , Composite Resins , Dental Alloys , Denture, Partial, Fixed , Electroplating , HumansABSTRACT
The status of casting alloys is presented with regard to metallurgical considerations, clinical properties, sales, and evolution of alloys from a historic perspective. Alloys are classified on the basis of 1) normal-fusing (non-porcelain bonding); and 2) high-fusing (porcelain bonding) and on nobility within these two groups. Part I of this two-part series details normal-fusing alloys. High-fusing alloys will be discussed in Part II.
Subject(s)
Dental Alloys , Dental Casting Technique , Dental Alloys/chemistry , Dental Alloys/classification , Gold Alloys/chemistry , Metallurgy , SilverABSTRACT
The purpose of this investigation was to test the bond strengths of several adhesive systems intended for intraoral resin-to-porcelain and resin-to-metal bonding. All measurements were compared with resin bonding to etched bovine enamel. Based on these data and the authors' own clinical experiences, protocols for intraoral porcelain repair are presented for fractures in porcelain only, fractures with both porcelain and metal exposed, and fractures with all metal exposure.
