The Resin-Bonded Fixed Partial Denture as the First Treatment Consideration to Replace a Missing Tooth.

The resin-bonded fixed partial denture (RB-FPD) is the first restorative treatment option to be considered in cases where one or more teeth are missing. The indications for implants, conventional FPDs, and adhesive FPDs, considering the general and dental conditions of the patient, are discussed in this article. When the RB-FPD is the chosen option, a direct or indirect technique, a cantilever-type or fixed-fixed design, and materials to be used need to be selected.

Effect of a retention groove on the shear bond strength of dentin-bonded restorations.

Statement Of Problem: With the increasing use of minimally invasive restorations, effective adhesion becomes more important. Applying mechanical retention to a flat dentin surface might improve the adhesion of ceramic and composite resin restorations.

Purpose: The purpose of this in vitro study was to evaluate the effect of a groove in a flat dentin surface on the bond strength of various restorative materials.

Case Report: A Predictable Technique to Establish Occlusal Contact in Extensive Direct Composite Resin Restorations: The DSO-Technique.

This paper describes the application technique of direct shaping by occlusion (DSO) for large composite restorations including the entire occlusal surface. For this technique, matrix bands and wedges are inserted without interference with antagonists in the desired occlusion. The final increment of soft-composite resin is shaped by letting the patient occlude on the uncured composite.

Effect of thickness of bonded composite resin on compressive strength.

Objective: The aim of this study was to investigate the compressive strength of composites with different physical properties bonded as a restoration to dentin in layers of varying thicknesses.

Methods: Four types of direct composite materials: a midway-filled (Tetric EvoCeram); a compact-filled (Clearfil AP-X); a nano-filled (Filtek Supreme); and a micro-filled material (Heliomolar) were bonded in 0.5-3.

Staining of dentin from amalgam corrosion is induced by demineralization.

Purpose: To evaluate the effect of artificial demineralization upon color change of dentin in contact with dental amalgam.

Methods: Sound human molars (n = 34) were embedded in resin and coronal enamel was removed. Dentin was exposed to artificial caries gel (pH 5.

The influence of varying layer thicknesses on the color predictability of two different composite layering concepts.

Objective: Optical properties of teeth are mimicked by composite layering techniques by combining a relatively opaque layer (dentin) with more translucent layers (enamel). However, the replacing material cannot always optically imitate the tooth when applied in the same thickness as that of the natural tissues. The natural layering composite system is available in 2 concepts: (1) dentin (D) and enamel (E) have the same shade but with different translucencies; (2) D and E have different shades where E is always the same high translucent shade.

Clinical performance of direct composite restorations for treatment of severe tooth wear.

Purpose: The aim of this retrospective clinical study was to evaluate the performance of direct composite restorations that were placed in patients with severe tooth wear requiring an increase of the occlusal vertical dimension.

Methods And Materials: Eighteen patients with severe tooth wear, who had been treated in a private practice between April 1996 and July 2007, were selected. All subjects had been treated with direct composite resin restorations in increased vertical dimension using a three-step etch-and-rinse adhesive system and a hybrid composite resin.

Seven-year clinical evaluation of painful cracked teeth restored with a direct composite restoration.

The purpose of this study was to investigate long-term clinical effectiveness of treating painful cracked teeth with a direct bonded composite resin restoration. The hypothesis tested was that cracked teeth treated with or without cuspal coverage showed the same performance. Forty-one patients attended a dental practice with a painful cracked tooth that was restored with a direct composite resin restoration.

Longevity and reasons for failure of sandwich and total-etch posterior composite resin restorations.

Purpose: To investigate longevity and reasons for failure of Class II posterior composite restorations (PCRs) placed with or without a lining of glass-ionomer cement.

Materials And Methods: Four hundred fifty-eight Class II PCR placed in 248 patients (110 male, 138 female, age 18 to 80) by two dentists in a general practice between 1988 and 1997 were retrospectively examined from the patient files. The restorations were placed either with a total-etch technique or with a resin-modified glass-ionomer lining placed on the dentin.

The effectiveness of different polymerization protocols for class II composite resin restorations.

Objectives: To investigate the effect of reduced light exposure times on Vickers hardness (VH) of class II composite resin restorations.

Methods: Class II restorations were made in vitro in three 2mm thick increments in a human molar. Two composite resins (Clearfil AP-X; Esthet-X) were polymerized with four light-curing units (Halogen; Astralis 10, LED; The Cure, L.

Influence of composite resin consistency and placement technique on proximal contact tightness of Class II restorations.

Purpose: To investigate the influence of composite resin consistency and placement technique on proximal contact tightness of Class II composite resin restorations.

Materials And Methods: A manikin model (KaVo Dental) was used with an artificial first molar in which a standardized MO preparation was ground. This preparation was duplicated 360 times.

A retrospective clinical study on longevity of posterior composite and amalgam restorations.

Objectives: The purpose of this study was to evaluate retrospectively the longevity of class I and II amalgam and composite resin restorations placed in a general practice.

Methods: Patient records of a general practice were used for collecting the data for this study. From the files longevity and reasons for failure of 2867 class I and II amalgam and composite resin restorations placed in 621 patients by two operators between 1990 and 1997 were recorded in 2002.

Can a single composite resin serve all purposes?

The consensus view less than a decade ago was that direct posterior composites should be restricted to small restorations, preferably in premolar teeth with little, if any, occlusal function. Major advances in adhesive systems, materials and restorative techniques have combined to allow us to question this view and our increased clinical evidence base makes it appropriate to reconsider this viewpoint.

The effectiveness of bonded composite restorations in the treatment of painful, cracked teeth: six-month clinical evaluation.

This study investigated the clinical efficacy of a bonded resin composite restoration with and without cuspal coverage for the treatment of painful, cracked teeth. Patients in a private dental practice who presented with complaints were selected. Inclusion criteria were sensitivity to cold, biting and a clinically-visible crack after removal of the existing restoration.

Fracture strength of cusp replacing resin composite restorations.

Purpose: To assess the influence of an additional shoulder preparation on the fracture strength of a cusp-replacing direct resin composite restoration in a premolar that previously had an amalgam MOD restoration followed by fracture of a cusp.

Materials And Methods: Two preparation designs were tested. In extracted sound premolars an MOD amalgam cavity was simulated followed by fracture of a cusp (Group A).

Voids and porosities in class I micropreparations filled with various resin composites.

In this in vitro study, voids inside a minimal occlusal restoration using different consistencies of resin composite and various application techniques were investigated. One hundred and fifty-two simulated, minimally invasive preparations, including a prepared fissure and an excavated carious dentin lesion, were ground in perspex blocks. After applying an acrylic primer (Artglass Connector, Kulzer), the preparations were restored with the adhesive PhotoBond (Kuraray) and one of three resin composites: a packable composite (Prodigy Condensable-Kerr), a syringable composite (Clearfil Photo Posterior, Kuraray) and a flowable composite (Revolution, Kerr).

Microleakage and damage to adjacent teeth when finishing Class II adhesive preparations using either a sonic device or bur.

Purpose: To detetmine the damage to adjacent tooth surfaces and the quality of the marginal seal of a resin-based composite restoration when a sonic preparation device (Sonicsys) was used to finish the preparation outline.

Materials And Methods: Three general practitioners prepared 60 Class II box-type cavities in extracted teeth placed in an artificial jaw in a phantom-head. In 30 preparations a bevel was made with a bur, in the other 30 restorations the margins were finished using the sonic preparation device.

The combination of a surgical and adhesive restorative approach to treat a deep crown-root fracture: a case report.

Most dental trauma requires immediate action to preserve the affected teeth. Furthermore, the trauma has often a great impact on the appearance and well being of the patient. In this case trauma resulted in a very deep complicated crown-root fracture of one incisor and a complicated crown fracture in another incisor of a 47-year-old woman.

Porosities and voids in Class I restorations placed by six operators using a packable or syringable composite.

Objectives: The aim of the study was to investigate the influence of two resin composites with different handling properties and application techniques on the homogeneity of a restoration placed in small and large cavities. Furthermore, the operator-effect on the restorative procedure was studied.

Methods: Standardized Class I cavities of two sizes were prepared in artificial lower first molars.

[Adhesive techniques in the treatment of tooth wear due to bruxism].

Wear due to bruxism is not restricted to those surfaces of the tooth that are loaded by occlusion and articulation. Due to tooth flexure wedge-shaped lesions, so-called abfractions, may develop. In the treatment of wear caused by bruxism, direct composite restorations may play an important role.

A simple method to protect patient and environment when using sandblasting for intraoral repair.

Repair or correction of intraoral restorations can be an alternative to complete replacement. A simple sandblasting device is very effective in producing a microretentive surface on every restorative material. A disadvantage of the technique is the production of an aerosol contaminated with the small, abrasive aluminum-oxide particles.

Extended indications for directly bonded composite restorations: a clinician's view.

Adhesive techniques play an important role in almost every discipline of dentistry. Compared to conventional direct and indirect techniques, the direct adhesively bonded composite restoration offers many advantages. This article summarizes and illustrates some of them.

Evaluation of the clinical performance and effectiveness of adhesively-bonded metal crowns on damaged canine teeth of working dogs over a two- to 52-month period.

In this clinical study, 41 metal full crown restorations of canine teeth were placed in 18 working dogs. Twenty-six canine teeth had severe attrition with no involvement of the pulp cavities; 15 fractured canine teeth were endodontically treated. With the exception of one tooth, at least one-third of the coronal part of each canine tooth was available for a supragingivally performed, minimal tooth crown preparation.

Class I occlusal composite resin restorations: in vivo post-operative sensitivity, wall adaptation, and microleakage.

Purpose: To investigate the effect of restoration technique and adhesive system on the post-operative sensitivity and marginal adaptation of Class I occlusal composite resin restorations placed in vivo.

Materials And Methods: 48 Class I cavities were restored in vivo according to one of three protocols: (1) Scotchbond Multi-Purpose/P50 placed in increments; (2) Scotchbond Multi-Purpose/P50 placed in bulk, and (3) Clearfil Liner Bond 2/Clearfil Ray Posterior placed in bulk. Post-operative sensitivity and sensitivity on loading were recorded 5-7 weeks after placement of the restorations; the teeth were cautiously extracted, immersed in a dye solution and sectioned.