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At least 1,171 records · Page 65Linked to original sources
PubMed2002

Success with inlays/onlays: the seven essentials.

Direct restorative materials have revolutionized the industry over the last several years. They offer the convenience to the patient of a one-visit procedure and they decrease overhead in the dental practice. However, it is essential to remember that direct procedures are not always the treatment of choice. For this reason, we should not discount the need for--or the value of--indirect techniques and laboratory-based procedures, such as inlays and onlays. Fit, form, and function can be more predictable when a procedure involves the ultraprecise workings of the dental laboratory--if the impression-making and other focus areas are given their due significance. This article provides key information about and clinical tips for the seven main facets of inlay/onlay fabrications that will lead to clinical success: diagnosis, tooth preparation, tissue management, impression making, temporization, laboratory communications, and final fit/occlusion.

Cementation↗
PubMed1996

[Occlusion-building with tooth-colored restoration materials].

Severe localized or generalized tooth wear will result in loss of vertical dimension. Rehabilitation of the dimensional height is often required. A causal approach is the choice of preference to prevent progression of destructive processes. However, the etiology of pathological wear is not yet clarified, so reversible and non-destructive tooth saving restorative procedures are essential. For adjustment and stabilization of the occlusion of CMD problems the philosophy and treatment approach are similar. Tooth coloured adhesive restorations can be fabricated in different manners, directly and indirectly. In this article treatment objectives for occlusal rehabilitation are described and two cases presented where tooth coloured restorations are used.

Color↗
PubMedDate not supplied

Surface finish of a new hybrid aesthetic restorative material.

This study compared the surface finish of a new hybrid aesthetic restorative material (Reactmer) over time to four different types of existing materials. The latter included a composite (Spectrum TPH), a compomer (Dyract AP) and conventional (Fuji II) and resin-modified glass ionomer cements (Fuji II LC). Six specimens of each material were fabricated and stored in distilled water at 37 degrees C for one week. The materials were subsequently finished with a series of Sof-Lex contouring and polishing disks. The average surface roughness (Ra, microm) of each specimen was measured at three days and three months by a surface profilometer. Storage medium was distilled water at 37 degrees C during the hiatus periods. Data was analyzed by ANOVA/Scheffe's and independent samples t-tests at significance level 0.05. At both time periods, Fuji II and Fuji II LC were significantly rougher than Spectrum, Dyract and Reactmer. For all materials, surface roughness at three days was not significantly different from that at three months. The surface finish of the giomer (Reactmer) was significantly better than conventional/resin-modified glass ionomer cements and comparable to the composite and compomer evaluated. The quality of surface finish for all materials was not significantly affected by long-term storage in water.

Analysis of Variance↗
PubMed2002

Direct restoration of anterior teeth: review of the clinical technique and case presentation.

Direct composite resin bonding procedures are growing in popularity as conservative and predictable restorative treatment alternatives. An understanding of the fundamental layering, contouring, and polishing principles is paramount to the success of any direct composite restoration; this awareness can be subsequently applied to indirect restorations and significantly enhance laboratory/clinician communication. This article presents a clinical technique that describes the incremental placement of direct resin veneers on a typodont and demonstrates the application of these procedures on an actual clinical case.

Adult↗
PubMed2002

The injection-molded technique for anterior maxillary provisional restorations: a clinical case.

Provisional restorations provide valuable clinical information for the definitive restorations. In the provisionalization phase, they guide the healing of the gingival tissues and allow the clinician to determine any necessary phonetic or aesthetic adjustments; provisional restorations also assuage patients' psychological concerns regarding their appearance. This article highlights the development of provisionalization procedures and describes disadvantages that have furthered the quest for improvements. An alternative technique for fabricating provisional restorations through an injection-molding process is demonstrated for the anterior maxilla.

Adult↗
PubMedDate not supplied

Delivering a fixed restoration: a clinical rationale for creating a routine sequence.

The proper sequence of seating a restoration starts with the evaluation of the shade match. Clinical procedures then follow this sequence: adjustment of proximal contact points, assessment of fit, and occlusal adjustment. Attempts to alter this sequence may cause unnecessary occlusal adjustments and an end result of a hypooccluded restoration.

Clinical Protocols↗
PubMed2002

Expectation of retaining natural teeth for a lifetime and its predictors among Norwegian adults.

OBJECTIVE: To determine the extent to which Norwegian adults expect to retain their natural teeth for life, and to assess the effect of possible predictors of expectancy. DESIGN: Cross-sectional random sample survey. SETTING: Participants were interviewed in person or by telephone in August/September 1999. SUBJECTS: A representative nationwide sample aged 15-79 years (n = 1,287). The participation rate was 65%. The results pertain to 1,154 subjects aged 16-79 years with > or = 20 teeth. OUTCOME MEASURE: Expectation of retaining natural teeth for life. RESULTS: About 42% believed definitely that they would retain their natural teeth for life. The rate was 88% when those who answered 'possibly' were included. Logistic regression analysis showed that gender (OR = 1.9, 95% CL 1.25, 2.87), appearance (OR = 2.8, 95% CL 1.85, 4.29) and chewing ability (OR = 2.4, 95% CL 1.26, 4.46) were significant predictors of the expectancy to retain 20 or more natural teeth for life. Explained variance expressed in terms of Nagelkerke's R2 was 0.093. CONCLUSIONS: About 40% of Norwegians definitely expected to retain > or = 20 natural teeth for life, 88% believed this to be 'definitely' or 'possibly'. Gender, appearance and chewing ability were significant predictors but their explanatory effect was low.

Adolescent↗
PubMed2002

Color stability of resin cements--an in vitro study.

The long-term success of an aesthetic restoration is predicated on numerous factors that include its color stability. As clinicians incorporate conservative tooth preparation into their restorative designs, the color stability of the underlying cement material increases in importance. This in vitro study evaluated the color stability of several commercially available resin cements under accelerated conditions. The investigation demonstrated that, under the experimental conditions, resin cements tended to change color between 1 week and 14 weeks, and their color change values increased with accelerated aging times.

Bisphenol A-Glycidyl Methacrylate↗
PubMed2002

An aesthetic component of the IOTN for black subjects.

A study was undertaken among black evaluators to determine their perceptions about anterior dental aesthetics in Negroid subjects with bimaxillary protrusion. One hundred evaluators assessed photographs of the anterior occlusion of 24 patients with varying complexity of bimaxillary protrusion. These adjudicators were requested to select the 5 best and the 5 worst among the 24 photographs. The 10 selected photographs were then shown to 343 Grade nine, 219 Grade twelve and 260 university students, who were required to select the most attractive, second most attractive, most unattractive, second most unattractive and an average photograph. The average ages of the groups of Grade nine, Grade twelve and university students were 15, 19 and 24 years respectively. Results were analysed statistically to determine the 5 most selected photographs in these categories. These photographs are presented and it is hoped to add them to the aesthetic component of the Index of Orthodontic Treatment Need (IOTN) so as to extend the use of this valuable index to include subjects with bimaxillary protrusion common to South Africa and Africa in general.

Adolescent↗
PubMed2002

Aesthetic design preservation in multidisciplinary therapy: philosophy and clinical execution.

Complex perio-prosthetic cases that require multidisciplinary therapy often result in compromised aesthetics. Traditional treatment planning philosophies, as well as existing interdisciplinary relational patterns, do not promote the achievement of predictable aesthetic results. Implementation of a restorative-driven approach requires the development of an aesthetic blueprint that will serve as a guide through treatment. This article illustrates the clinical techniques and sequence for an outcome-based protocol that enhances therapeutic cohesiveness and ensures the sequential transfer of design objectives for the preservation of aesthetics in multidisciplinary therapy.

Dental Impression Technique↗
PubMed2002

Synaesthetic restorations: a psychological perspective for surpassing aesthetic dentistry.

Dentistry is often described as a fusion of art and science. While the scientific aspect is well documented, the artistic component is nebulous and often subject to interpretation. The use of the word "aesthetic" as a description of artistic dentistry is essentially flawed. While it forms part of artistic concepts, aesthetics is not the quintessential description of what constitutes art or its perception by the human brain. This article redresses this balance by emphasizing the artistic nature of dentistry and rationalizing the criteria that constitute artistic perception.

Adult↗