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At least 343 records · Page 19Linked to original sources
PubMed1998

A comparison of DAI scores and characteristics of occlusal traits in three ethnic groups of Asian origin.

The Dental Aesthetic Index (DAI) is an orthodontic index based on socially defined aesthetic standards. The primary aim of this study was to compare the prevalence of malocclusion using the DAI among three ethnic groups of Asian origin; Japanese, Chinese in Taiwan and Native Americans with white Americans. A secondary goal was to consider the possibility that genetic factors might be the cause of the characteristics of malocclusion in the ethnic groups of Asian origin. Malocclusion was evaluated in 1029 Japanese and 176 Chinese in Taiwan students utilising the DAI, and the findings were compared with those of Native Americans and white Americans. The DAI values of Japanese and Native Americans were significantly higher than those of Chinese in Taiwan and white Americans. The mean DAI values showed no common tendency among the three ethnic groups. The characteristics of malocclusion in each ethnic group were also evaluated by analysis of each of the 10 DAI component scores. The results revealed common characteristics of malocclusion in the three ethnic groups of Asian origin using white Americans as the standard. The findings in the present study suggest the possibility that genetic factors might have an influence on the characteristics of malocclusion.

Adolescent↗
PubMed2002

Restitution of maxillary anterior aesthetics with all-ceramic components.

This paper discusses the use of four types of ceramics; zirconia, leucite reinforced glass, densely-sintered pure aluminium oxide and a low fusing porcelain, for the restitution of anterior aesthetics. Recent advances in dental ceramic technology have made this scenario a reality, which only a decade ago, was thought elusive. While ceramics offer obvious advantageous properties of enhanced appearance, they also need to satisfy functional and longevity criteria to be considered viable restorative materials. Numerous studies have cited data to fulfil these criteria, including sustained function and survival rates similar to porcelain fused to metal (PFM) restorations. This discussion will focus on current dental ceramic advances, and present a clinical case study using all ceramic constituents to rectify a deteriorating dentition.

Computer-Aided Design↗
PubMed1989

Assessment of appearance match by visual observation and clinical colorimetry.

Judgments of appearance matching by means of the visual criteria established by the United States Public Health Service (USPHS) and by means of an extended visual rating scale were determined for composite resin veneer restorations and their comparison teeth. Using a colorimeter of 45 degrees/0 degrees geometry and the CIELAB color order system we used the color of the restorations and comparison teeth to calculate a color difference for every visual rating. Statistically significant relationships were found between each of the two visual rating systems and the color differences. The average CIELAB color difference of those ratings judged a match by the USPHS criteria was found to be 3.7. However, the overlap in ranges of the color differences for those comparisons rated matches and mismatches indicates the importance of other factors in appearance matching, such as translucency and the effects of other surrounding visual stimuli. The extended visual rating scale offers no advantages to the more broadly defined criteria established by the USPHS.

Color↗
PubMed2005

Aesthetic orthodontic brackets.

Due to an increasing demand for superior aesthetics during fixed appliance treatment, the use of aesthetic brackets has grown in popularity over recent years. Although often requested by patients, aesthetic brackets are not without their disadvantages. This article presents the currently available plastic and ceramic brackets and discusses the potential problems associated with each. Recent advances, introduced by manufacturers in an attempt to overcome their clinical disadvantages, are described.

Ceramics↗
PubMed1992

Indelible bond location marks: an avoidable aesthetic hazard.

An increasingly popular method of aiding the precise placement of bonded brackets is to identify the long axis and centre of the crown with small pencil marks. A case is reported where marks placed with a soft pencil in the centre of the etched enamel have led to the inclusion of pigment deep in the enamel surface which has proved impossible to remove.

Adolescent↗
PubMed1992

Aesthetic tooth modification for patients with cleft lip and palate.

Alongside orthodontic treatment, tooth shape modification may be indicated for teeth associated with clefts of the lip and alveolus, and in non-carious teeth, minimal tooth preparation techniques appear to be most appropriate. Two methods of tooth shape modification are described. In one, hybrid composite materials, bonded to tooth enamel using the acid-etch technique, may be considered to provide a permanent, low cost, aesthetically satisfactory result, often without tooth preparation and with minimal operating time. Alternatively, indirect veneers may be appropriate for treatment of more severely malformed teeth.

Anodontia↗
PubMed1994

A comparison of the Index of Orthodontic Treatment Need applied clinically and to diagnostic records.

The Index of Orthodontic Treatment Need was applied clinically to a group of patients and later to study models and photographs taken at that same visit. Examiner reliability and agreement between the information obtained clinically and from diagnostic models was high. There was however, poor agreement for the Aesthetic component scored from photographs, when compared with scores recorded clinically or from models.

Dental Records↗
PubMed2000

The orthodontic restorative management of the peg-lateral.

There are usually two orthodontic options in dealing with the peg-lateral. First, the lateral incisor can be extracted and the resultant space closed. However, this will often give a narrow unaesthetic smile. The canine is too yellow and the gingival margin is too high. The second, preferred, option is often to open the space mesial and distal to the peg-lateral and create a proper space for a normal-sized lateral incisor. The restorative dentist has to build up the peg-lateral to simulate a normal-sized lateral incisor.

Acrylic Resins↗
PubMed2003

Does the GDP need to know about IOTN?

'Two-tier dental systems planned'; 'Children in need of orthodontic treatment to go without'... recent scaremonger headlines from consumer reports exaggerate the latest potential effects of this government's plans to target financial resources at those in greatest need. This article aims to provide a background to occlusal indices and provide general dental practitioners (GDPs) with an insight into the use of the Index of Orthodontic Treatment Need (IOTN), which it is understood may be introduced into the General Dental Service in the future.

Dental Health Surveys↗
PubMed2006

Amelogenesis imperfecta--clinical presentation and management: a case report.

Amelogenesis imperfecta (AI) is an inherited disorder which results in enamel defects. The presentation of AI can vary depending on the type and severity of AI. The management of this condition is important for the patient, both functionally and aesthetically. This report describes the management of a young man who was referred to Birmingham Dental Hospital with AI. The patient's primary complaint was the appearance of his front teeth and the sensitivity he was experiencing from his worn molar teeth.

Adolescent↗
PubMed1995

Clinical evaluation of restored maxillary incisors: veneers vs. PFM crowns.

This cross-sectional study compared the periodontal health and clinical acceptability of maxillary incisors restored with porcelain veneers vs. porcelain-fused-to-metal crowns. The authors evaluated 60 patients, a total of 120 restorations, in groups according to the age of the restorations (zero to 60 months). Margins of veneers were generally more supragingival with less gingival inflammation. All veneers were clinically acceptable, while 5 percent of PFMs failed because of secondary caries.

Adolescent↗