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Development of noncarious cervical notch lesions in vitro.

PURPOSE: The initiation and progression of noncarious cervical notch lesions (NCCL) continues to perplex clinicians worldwide and poses a considerable restorative challenge. The purpose of this brief communication is to report what is believed to be the first in vitro production of notch-shaped lesions in the cervical third of premolar teeth. MATERIALS AND METHODS: The lesions, were produced by axial loading of selected permanent premolar teeth in a 10% aqueous solution of sulfuric acid over a period of 5 days, followed by immersion in water for 7 days. RESULTS: Results revealed macroscopic and microscopic features similar to those observed in noncarious cervical lesions in vivo. The lesions were incidental findings while the authors were studying stress corrosion of enamel at low pH. Although much remains to be investigated regarding the etiology and pathogenesis of NCCL, axial loading and a corrosive environment may be implicated in these processes. The artificial lesions arose in clinically sound teeth, suggesting that there is no simple clinical examination to identify teeth at risk from NCCL. CLINICAL SIGNIFICANCE: The relationship between the development of NCCL and applied stress indicates that occlusal factors may play the most significant role in the initiation and progression of NCCL.

Bicuspid↗

Perioesthetic approach to the diagnosis and treatment of carious and noncarious cervical lesions: Part I.

Several factors can contribute to the development of noncarious cervical lesions. Therefore, these lesions can be described and classified according to their primary etiology. Traditionally, most dentists have treated noncarious cervical lesions only with restorative methods, for example, composite resin restorations. However, in many cases, a periodontal or a combined restorative/periodontal approach provides a better esthetic and functional result. In part I of this two-part report, we provide a review of noncarious cervical lesions and a series of clinical case reports showing surgical techniques used and the importance of the periodontal aspect of lesion management.

Adult↗

Anorexia nervosa.

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Adolescent↗

A model for the prediction of tooth wear in individuals.

BACKGROUND: Easily applied, age-specific standards are useful in assisting clinicians to decide whether the extent of tooth wear observed in a given patient at a specific age is acceptable or whether intervention is indicated. METHOD: A simple method of scoring tooth wear and previously established mathematical relationships between tooth wear scores and age, provide the basis of a method for predicting tooth wear scores. In its most specific form, the method can be used to predict tooth wear scores for individual patients at subsequent ages. Alternatively, tables or graphs can be consulted to provide a less precise prediction of tooth wear that can assist clinicians to decide whether the amount of wear reflects high, moderate or low rates of wear at the specified age. CONCLUSION: In cases where there is no reason to believe that aetiological factors have changed significantly over time, data obtained from the methods described can assist clinicians to plan appropriate management for patients presenting with unacceptable levels of tooth wear.

Age Factors↗

Eating disorders and oral health: a review of the literature.

This article is a review of the recent literature pertaining to the oral sequelae of eating disorders (EDs). Dentists are recognized as being some of the first health care professionals to whom a previously undiagnosed eating disorder patient (EDP) may present. However, despite the prevalence (up to 4 per cent) of such conditions in teenage girls and young adult females, there is relatively little published in the recent literature regarding the oral sequelae of EDs. This compares unfavourably with the attention given recently in the dental literature to conditions such as diabetes mellitus, which have a similar prevalence in the adult population. The incidence of EDs is increasing and it would be expected that dentists who treat patients in the affected age groups would encounter more individuals exhibiting EDs. Most of the reports in the literature concentrate on the obvious clinical features of dental destruction (perimolysis), parotid swelling and biochemical abnormalities particularly related to salivary and pancreatic amylase. However, there is no consistency in explanation of the oral phenomena and epiphenomena seen in EDs. Many EDPs are nutritionally challenged; there is a relative lack of information pertaining to non-dental, oral lesions associated with nutritional deficiencies.

Adolescent↗

Diet and oral health.

This review paper looks at the effects of diet on oral health and is concerned mainly with the effects of localised attacks on the dental hard tissues. In analysing the epidemiological evidence, the paper draws distinctions between the rates of diseases entities in developed and developing countries. The author concludes that oral health risks do not necessitate dietary recommendations in addition to, or other than, those required for maintenance of general health. The paper indicates an increasing need for evidence-based, individual tailor-made counselling and for specific programmes directed towards defined, high-risk groups or populations whose oral health problems have been carefully studied and identified.

Beverages↗

Cocaine abuse: orofacial manifestations and implications for dental treatment.

Millions of individuals in Europe and the United States use cocaine regularly. Use of cocaine may have several orofacial effects such as perforation of nasal septum and palate, gingival lesions and erosion of tooth surfaces. Recent use of cocaine may also increase medical risks during dental treatment, especially when local anaesthetics with epinephrine or epinephrine-impregnated retraction cords are used. Therefore, it is recommended to postpone dental treatment at least 6 to 24 hours after the use of cocaine.

Adult↗

Tooth surface loss in adult subjects attending a university dental clinic in Trinidad.

OBJECTIVES: To determine the prevalence of tooth surface loss (TSL) in a sample of subjects attending a university dental clinic in Trinidad and to investigate the relationship to tooth brushing, medical history, parafunction and dietary habits. DESIGN: Tooth surface loss was measured clinically by the index used in the 1998 UK, Adult Dental Health Survey. SETTING: Trinidad, West Indies. PARTICIPANTS: Convenience sample of adult subjects attending The University of the West Indies Dental School Polyclinic, Mount Hope. METHODS: A questionnaire was administered and tooth surface loss measured clinically. MAIN OUTCOME MEASURES: mild, moderate and severe tooth surface loss. RESULTS: 155 subjects were examined (mean age 40.6 years) of whom 72% had some degree of TSL with the majority (52%), exhibiting mild, 16% with moderate and 4% with severe TSL. There were associations found between TSL and age (OR=3.14), reflux (OR=1.37), parafunction (OR=1.06), weekly consumption of citrus fruits (OR=1.31) and soft drinks (OR=1.78), daily consumption of alcohol (OR=1.40) and a vegetarian diet (OR=2.79). CONCLUSIONS: Tooth surface loss in this Trinidadian population group appears to be common. Data supports an association between TSL and age, reflux parafunction and certain dietary patterns.

Adolescent↗

Teeth, vomiting and diet: a study of the dental characteristics of seventeen anorexia nervosa patients.

Seventeen anorexia nervosa patients were examined dentally and their dietary histories and eating habits studied. Analysis of the data confirmed earlier observations dental deterioration associated with anorexia nervosa. The deterioration included a pattern of enamel dissolution in cases of vomiting, regurgitation, and/or the consumption of large amounts of citrus fruits; and an altered caries response due to abnormal carbohydrate consumption. Despite the patient's probably insistent denial of 'anorectic' eating habits, the general practitioner should consider the existence of anorexia nervosa in the presence of such abnormal features, especially in young women. The relationship of these findings to larger populations with similar eating habits is discussed.

Adolescent↗