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At least 271 records · Page 15Linked to original sources
PubMed1981

Margin placement of esthetic veneer crowns. Part II: Posterior tooth visibility.

The amount of posterior tooth visibility was analyzed in a population of 425 subjects. By scoring photographic data, the percentage of posterior teeth that could have a crown margin placed in their occlusal, middle, and gingival sections without showing were calculated. The results of this study indicate that: 1. For esthetic reasons, posterior margin placement should be handled on an individual basis. 2. The routine placement of either supragingival or subgingival margins for esthetics alone on posterior teeth may be over- or under-treating, respectively, a portion of the population. 3. A substantial percentage of the population studied had posterior gingival sections that were visible. A substantial percentage also had gingival sections that were not visible.

Bicuspid↗
PubMed1981

Esthetic parameters of mandibular anterior teeth.

Designing mandibular anterior fixed prostheses for good esthetics involves many factors. Factors which are, at least in part, functionally or phonetically determined are degree of vertical and horizontal overlap, curve and height of the teeth, anterior placement of the incisal edge, and incisal contacts. Design factors which must be appreciated and manipulated by the dentist in his prescription and in the fabrication techniques are overlap, incisal wear and facets, and height and variety of contact area. It is these design factors which are crucial to the esthetic success of a mandibular anterior fixed partial denture.

Adult↗
PubMed1990

Psychologic facets of esthetic dental health care: a developmental perspective.

A developmental perspective is presented to explore dental health and esthetics in dentistry and to describe the specific ways human behavior and various aspects of esthetic health care interrelate. An investigation of the fascinating links between mind and mouth over the life cycle are elucidated to explain how and why the oral cavity is so psychologically important. Clinical examples of how personality factors can influence dental treatment and its outcome are illustrated.

Adult↗
PubMed1990

A simplified technique for fabricating esthetic cast metal occlusal surfaces for dentures.

This article describes a simplified method for making esthetic cast metal occlusal surfaces. Monoplane posterior acrylic resin block teeth, cast in a nickel-chrome alloy, are coated with silane and an esthetic composite resin veneer is applied to the buccal surface. These veneered posterior metal teeth are incorporated in the wax setup and the dentures are processed and finished. The dentist's routine technique for delivering dentures to the patient can be followed.

Composite Resins↗
PubMed1992

Racial norms: esthetic and prosthodontic implications.

A review of the orthodontic literature reveals that different races have different cephalometric norms. This has great implications in the placement and arrangement of teeth and in the evaluation of esthetics in people of dissimilar ethnic origins. In the diverse American society, prosthodontists and restorative dentists need to be concerned with the phylogenetic characteristics of their patients. The resultant esthetic differences can have significant importance in the function and design of prostheses.

Denture Design↗
PubMed1989

Esthetic evaluation of frontal labial morphology after double V-Y closure following Le Fort I osteotomy.

Ten orthognathic surgery patients who had their maxillary circumvestibular incision closed with a double V-Y closure were compared with 10 unoperated controls. Pre- and post-operative frontal photographs were presented to nine oral and maxillofacial surgeons and nine orthodontists. The examiners answered a set of questions designed to evaluate changes in maxillary exposed vermilion height, contour of the Cupid's bow, and the final esthetic result. Results of the study show that any changes in the definition of Cupid's bow or the vermilion height with double V-Y closure are difficult to discern clinically and that this procedure produces an esthetically acceptable outcome.

Adult↗
PubMed1991

Esthetic evaluation and treatment of the upper one third of the face.

Esthetic assessment and treatment planning for the upper one third of the face is reviewed. The importance of esthetic anatomy in evaluation of the face as a whole is stressed. Three basic approaches to the forehead and brow lift are discussed, with particular regard to patient selection, indications, and contraindications. Clinical cases are presented as examples.

Adult↗
PubMed1992

Maxillofacial esthetics: anthropometrics of the maxillofacial region.

Many artists, orthodontists, and surgeons have proposed guidelines for esthetic facial evaluation, but few have shown a scientific basis for their criteria. Farkas, however, made a substantial contribution to anthropometric facial measurements of adult whites. His raw data were used to develop a comprehensive set of ratios to define the esthetic face. A systematic maxillofacial evaluation derived from Farkas's data is presented, along with a brief description of its clinical application.

Adult↗
PubMed2005

Tooth shape preferences in an esthetic smile.

INTRODUCTION: The purpose of this study was to evaluate the contributions of tooth shape to the esthetic smile. METHODS: Restorative dentists (120), laypeople (102), and orthodontists (113) evaluated a series of color photographs of men's and women's smiles. The photographs were randomly presented to test the effects of 3 different shapes of maxillary incisors and canines on the same patient. RESULTS: For women, orthodontists preferred round and square-round incisors (P < .01), and restorative dentists preferred round incisors (P < or = .03). Laypeople did not discriminate between incisor shapes. For men, all 3 groups preferred square-round incisors (P < or = .042). There was also a tendency for male judges to rate female images more attractive than did female judges. CONCLUSIONS: Restorative dentists, orthodontists, and laypeople share similarities and display differences when considering esthetic preferences in tooth shape. Although there was no consensus in preference among the laypeople as a group, their preferences differed from those of the dental professionals.

Adult↗
PubMed2006

The enigma of facial beauty: esthetics, proportions, deformity, and controversy.

The study of the face and the ability to alter its form have fascinated mankind for thousands of years. The clinical ability to alter dentofacial form, whether through orthodontics, facial growth modification, or surgery, requires an understanding of facial beauty, including the evaluation of facial esthetics, proportions, and symmetry. The purposes of this article were to give a brief contemporary overview of our concepts of facial beauty and esthetics and to consider a long-standing and controversial debate on the treatment of patients with dentofacial deformities.

Beauty↗
PubMed2006

Perceptions of dental professionals and laypersons to altered dental esthetics: asymmetric and symmetric situations.

INTRODUCTION: Previous studies evaluated the perception of laypersons to symmetric alteration of anterior dental esthetics. However, no studies have evaluated the perception of asymmetric esthetic alterations. This investigation will determine whether asymmetric and symmetric anterior dental discrepancies are detectable by dental professionals and laypersons. METHODS: Seven images of women's smiles were intentionally altered with a software-imaging program. The alterations involved crown length, crown width, midline diastema, papilla height, and gingiva-to-lip relationship of the maxillary anterior teeth. These altered images were rated by groups of general dentists, orthodontists, and laypersons using a visual analog scale. Statistical analysis of the responses resulted in the establishment of threshold levels of attractiveness for each group. RESULTS: Orthodontists were more critical than dentists and laypeople when evaluating asymmetric crown length discrepancies. All 3 groups could identify a unilateral crown width discrepancy of 2.0 mm. A small midline diastema was not rated as unattractive by any group. Unilateral reduction of papillary height was generally rated less attractive than bilateral alteration. Orthodontists and laypeople rated a 3-mm distance from gingiva to lip as unattractive. CONCLUSIONS: Asymmetric alterations make teeth more unattractive to not only dental professionals but also the lay public.

Adult↗
PubMed2005

Interobserver agreement and consensus over the esthetic evaluation of conservative treatment for breast cancer.

Twenty-four experts from 13 different countries were asked to evaluate photographs taken of 60 women following conservative breast cancer treatment. The esthetic result of each case was classified as poor, fair, good or excellent. Agreement was evaluated using the kappa (k) and weighted kappa (wk) statistics, for all observers, male and female participants, those younger and older than 50 years, those seeing more than 250 cases a year, and those with previous publications in this area. Consensus was obtained by way of a modified Delphi approach, when more than 50% of participants provided the same classification. In a second round, consensual cases were disclosed and a revised opinion was asked in non-consensual ones. Agreement between all participants was fair (k=0.24, wk=0.37) and remained within the same range (k=0.20-0.31, wk=0.31-0.45) in the subgroups analyzed. First round consensus was obtained in 46 out of 60 cases (77%) and in the second round in 59 out of 60 cases (98%). Evaluation of the esthetic results of conservative treatment for breast cancer is only fairly reproducible when performed by experts working in different geographical areas. Consensus is obtainable if a relatively low threshold of agreement is considered acceptable.

Adult↗
PubMed2004

Analysis of influence of lip line and lip support in esthetics and selection of maxillary implant-supported prosthesis design.

The lip line and lip support influence esthetics and selection of implant-supported prosthetic designs for maxillary edentulous patients. This article describes a procedure to analyze the influence of lip line and lip support on the esthetics of an existing maxillary complete denture, revealing potential limitations when planning a fixed implant-supported prosthesis.

Dental Prosthesis, Implant-Supported↗
PubMed2004

Esthetic enhancement of ceramic crowns with zirconia dowels and cores: a clinical report.

There has been an increase in the use of esthetic metal-free ceramic crowns in restoring endodontically treated teeth or teeth with severe coronal destruction. Tooth-colored dowels and cores are used to enhance the esthetic result. This report describes the treatment of a patient with bilateral maxillary supernumerary lateral incisors, a severe malocclusion, and maxillary anterior tooth discoloration. Treatment included heat-pressed, metal-free ceramic crowns supported by zirconia ceramic dowel-and-core foundations.

Adult↗
PubMed2005

Restoring dentate appearance: a literature review for modern complete denture esthetics.

Despite the fact that solutions to functional and comfort problems are often available, successfully restoring the appearance of an edentulous patient remains a challenge. This review of the literature demonstrates the limited amount of useful evidence-based information available for restoration of dentate appearance in edentulous individuals. The English language peer-reviewed literature from 1880 to the present was reviewed. Articles were identified through previous literature reviews, an extensive hand search, and a search of MEDLINE using the key words esthetics and denture esthetics. Three main areas of information were found: published guidelines for achieving natural appearance, patient preference studies, and studies that have collected and analyzed anatomic norms.

Denture Design↗
PubMed2003

Effect of three bleaching agents on the surface properties of three different esthetic restorative materials.

STATEMENT OF PROBLEM: Information related to the effect of night-guard vital bleaching procedure on the surface properties of esthetic dental restorative materials is incomplete. PURPOSE: The aim of this study was to examine the effects of 3 proprietary carbamide peroxide bleaching agents on the surface properties of 3 dental esthetic restorative materials. MATERIAL AND METHODS: Three bleaching products (Nite White, Opalescence, and Rembrandt Lighten Gel) and 3 restorative materials (Duceram, Fuji II LC, and Silux Plus) were studied. A stainless steel mold and a 6-mm-thick polytetrafluoroethylene plate with a 1-cm-diameter hole were used to prepare 30 standardized specimens for each of the 3 restorative materials tested. Each group was divided into 3 subgroups (n=10). Two specimens from each subgroup were selected to form a control group. Three different carbamide peroxide bleaching agents were applied to each restorative material group for 8 hours per day for 30 days, respectively. Initial roughness measurements (Ra measured in microm) were made by use of a profilometer, at repeated intervals of 24 hours, 48 hours, 1, 2, 3, and 4 weeks (30 days). Surface topography of the specimens was assessed by scanning electron microscopy, and results were compared with the control group graphically. Surface structure and alterations of atomic weight percentages of element were made by use of energy-dispersive x-ray microanalysis. One-way analysis of variance was used to evaluate the surface roughness measurements. Significant results were evaluated with Fisher and Duncan's multiple range test (P<.005) RESULT: Surface roughness values for all restorative materials increased during the bleaching procedure. The only significant increase was found with the effect of Rembrandt bleaching gel on modified glass ionomer cement (mean Ra was 0.48 microm initially, 0.5 microm at 24 hours, 0.75 microm at 2 weeks, and 0.83 microm at 30 days). Surface roughness values increased significantly during the first 2 weeks (P<.005) for all bleaching groups of each restorative material, and no significant changes were seen in the following periods. SEM micrographs of the feldspathic porcelain specimens for each bleaching agent appeared to be similar to the control group. All of the modified glass ionomer specimens revealed serious cracking areas, whereas microfilled composite specimens showed increased surface porosity and cracks in certain areas when compared with control specimens. Surface spectral analyses results indicated a decrease in the SiO(2) content in the feldspathic porcelain and the microfilled composite groups for all bleaching agents. Modified glass ionomer specimens bleached with Nite White and Rembrandt showed an increase in mass percentage of SiO(2), whereas Opalescence specimens showed a decrease. However, there were no significant differences between the groups. CONCLUSION: Within the limitations of this study, no significant difference was found between bleaching agents. Most changes occurred in the first 2 weeks; the products tested were relatively stable in the following test periods. No significant change in the surface roughness of feldspathic porcelain was observed. On the other hand, the microfilled composite tested showed slight changes in the surface roughness. Significant changes were found for the modified glass ionomer cement (P>.005).

Aluminum Silicates↗
PubMed1997

Alternative method of conservative esthetic treatment for gingival recession.

The health and appearance of gingival tissue play an essential role in esthetics. The esthetic function of the tissue is enhanced when it frames the restoration. With gingival recession, the effect of natural gingiva is created with pink composites or ceramics on the cervical part of the crown, as described in this clinical report. This goal depends on the absence of adverse effects on the color, shape, and health of the surrounding tissue. The new composites are more color stable and wear resistant, and the latest generation of dental bonding agents allows the bonding of composites to dentin, various metals, and porcelain. The application of soft-tissue colored composite on dentin cementum, enamel, or porcelain is a good solution for correcting gingival recessions.

Acid Etching, Dental↗
PubMed1997

The Twin-Flex clasp: an esthetic alternative.

In removable partial denture fabrication, the patient's interest usually lies in the improvement of his or her esthetic appearance. Unsightly facial clasps have always been a cosmetic problem with traditional options either expensive or technically difficult. This article describes an alternative for anterior retention that maintains excellent esthetics with a simple approach.

Dental Abutments↗