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PubMed2000

Resin-based composites and compomers in primary molars.

Resin-based composite resins and polyacid-modified resin-based composites (compomers) have become popular for the restoration of primary anterior and posterior teeth. In some European countries, resin-based composites or glass-ionomers are the materials of choice for primary teeth because of the controversy over dental amalgam and its alleged adverse health effects resulting from the release of mercury, although a clear correlation between amalgam restorations and health has not been determined. Another reason for the worldwide increased use of resin-based composites and glass-ionomers in pediatric dentistry could be attributed to the growing demand from parents to provide esthetic restorations to their children. More conservative preparations can be performed maintaining more tooth structure because of the adhesive properties of the composites and compomers. The most conservative treatment planning and meticulous care in the placement of the resin-based composites and compomers would produce long-term satisfactory results. These restorations should be placed in patients with low-to-moderate caries risk, and after placement the restorations should be monitored carefully to avoid complications mainly produced by recurrent caries and wear.

Adhesives↗
PubMedDate not supplied

Location of incisal edge position for esthetic restorative dentistry.

Restorative dentistry means just that--changing the position and morphology of teeth (when indicated) to restore the patient to a functional and esthetic occlusion. The first step considers the mandibular incisal edge position. Following that choice, the maxillary anterior teeth are evaluated for position against the lips and with the rest of the dentition, particularly the mandibular incisors and canines. When the three major determinants of incisal edge position (occlusion, phonetics, and esthetics) are used to place the anterior teeth where they will function best, all cases have the potential for a more enduring esthetic success.

Cuspid↗
PubMed2000

Strengthening mechanisms of current dental porcelains.

Dental porcelains have a high glass content, which provides the translucency necessary for esthetic restorations. Because glasses are brittle, they fail under tension or bending by the propagation of preexisting flaws (e.g., scratches, porosities). Several approaches that are based on impeding the propagation of flaws have been used to strengthen dental porcelains, including bonding to metals, adding microcrystalline phases, and surface treatments (i.e., polishing, ion exchange, hydration). Through these methods, porcelain systems are used routinely for all-ceramic anterior restorations; however, porcelain-fused-to-metal restorations remain the most reliable for posterior applications.

Crystallization↗
PubMed2001

Occlusal function. Beyond centric relation.

With the emphasis placed on esthetics today, anterior guidance has an important role in the development of a stable, anatomic, functional, and esthetic result. To develop a predictable and stable result requires a multidisciplinary approach to esthetics and function. The orthodontist is a major contributor in helping the restorative dentist achieve the anatomic and functional harmony that is needed for long-term stable function and esthetics. Harmony in function creates long-lasting smiles. In their continued quest for optimal results, and as members of their interdisciplinary teams, orthodontists should remind themselves of what Gottlieb wrote in 1986 in an editorial in the Journal of Clinical Orthodontics: "There is a difference between a beautiful alignment of teeth and an alignment of beautiful teeth. The orthodontist's job is not complete until there is a beautiful alignment of beautiful teeth."

Bite Force↗
PubMed2001

Advances in restorative materials.

This article has presented basic up-to-date information concerning the selection, properties, and clinical uses of current restoratives that are tooth colored and adhesive. This area in dentistry is advancing at an exponential rate, and it is essential that all practitioners pay constant attention to the information about all materials as they appear on the market. Coupled with a thorough knowledge of treatment planning and case design, results such as seen in Figure 4 make restorative practice a rewarding endeavor for clinicians and patients. Interest in the scientific background, development, and performance of restorative materials must be at a high level to avoid being snared by advertising promises.

Adhesives↗
PubMed2001

Creating tight, anatomically correct interproximal contacts.

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.

Dental Cavity Preparation↗
PubMed2001

Indirect posterior restorations using a new chairside microhybrid resin composite system.

A plethora of choices is available as potential tooth-colored restoratives for the posterior dentition. Advances in adhesive technology and esthetic chairside microhybrid composite resins have permitted clinicians to perform inlay/onlay restorations. The use of adhesive indirect procedures offers advantages such as better control of polymerization shrinkage and anatomical form, when compared to conventional, direct restorative techniques. This article describes the use of a new chairside microhybrid composite system as an indirect restorative material, using semidirect and indirect techniques that can be accomplished within the realm of a dental operatory.

Bicuspid↗
PubMedDate not supplied

Increasing the esthetics, production and profit of fabricating ceramic restorations with an alternative build-up technique.

The purpose of this article is to demonstrate the advantages and benefits of utilizing The Dry Powder Technique during the fabrication of ceramic restorations. This article explains how to create esthetically superior restorations using an unlimited number of porcelain powders while conserving time and materials. By utilizing dry powder storage containers, kolinsky sable brushes, capillary attraction and multiple oven firing procedures, a ceramist may control grain size distribution, color and contour with a minimum of effort and maximum of results.

Ceramics↗
PubMed2000

Utilization of a small-particle composite resin for anterior and posterior restorations.

The ability to acid etch enamel has resulted in the proliferation of adhesive dental techniques that enable conservation of sound tooth structure during the preparation and restorative phases. Recent research has focused on the clinical procedures that use composite resins as well as the material formulations involved in adhesive treatment. This article discusses the physical and optical properties of a composite resin with a smaller filler particle and demonstrates its utilization in anterior and posterior applications as a means of providing functional aesthetic dental care.

Acid Etching, Dental↗
PubMedDate not supplied

Facial analysis: a comprehensive approach to treatment planning in aesthetic dentistry.

Patient aesthetic expectations and smile enhancement can be achieved through the use of facial analysis. This process allows each member of the restorative team (i.e., clinician, specialist, dental technician) to diagnose the patient and develop a comprehensive treatment plan for his or her specific needs. Treatment planning according to facial architecture and dental configuration allows function and harmonious aesthetics to be improved. This article demonstrates a predictable means to evaluate the components of an attractive face for use as a guide during aesthetic dental treatment.

Adult↗
PubMed2001

A dental dream.

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Biocompatible Materials↗
PubMed2001

A wake-up call.

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Advertising↗
PubMed2001

Surface roughness of aesthetic restorative materials: an in vitro comparison.

The purpose of this study was to compare the surface roughness of three types of aesthetic restorative material. Six standard samples of two brands of each type of material were prepared namely: hybrid composites (Prodigy, Z100), compomers (Compoglass F, Hytac Aplitip) and glass ionomer cements (Photac-Fil, Vitremer) in a perspex mould (N = 36). Upper and lower surfaces were covered with Mylar strips which, in turn, were covered with glass slides and compressed to express excess material. After light curing, specimens were stored in distilled water for 14 days. Thereafter, one side of each specimen was polished sequentially with medium, fine and super fine Soflex discs (treatment). Untreated surfaces served as controls. All surfaces were examined with Talysurf and the surface roughness (Ra) of each specimen was recorded. Three measurements were made of each specimen. A 4-way ANOVA and Tukey's Studentised range test were used to analyse the data. Statistically significant effects were found for both type of material (P = 0.0001) and for treatment process (P = 0.0065). Among unpolished specimens: Compoglass F is significantly rougher than Vitremer, Z100, Prodigy and Hytac Aplitip, and compomers are significantly rougher than hybrids. Among polished specimens: Photac-Fil is significantly rougher than Z100 but does not differ from Compoglass F, Vitremer, Prodigy and Hytac Aplitip, and glass ionomers are also significantly rougher than hybrids. The smoothest surface is obtained when curing materials against a Mylar strip.

Analysis of Variance↗