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Severe dental attrition has several causes but may be the result of bruxism in neurological or psychological disturbances. Rett's syndrome is an uncommon but increasingly recognised neurological disorder, characterised by acquired microcephaly, progressive dementia, bruxism, and loss of purposeful movements of the hands. A patient with Rett's syndrome who demonstrated masseteric hypertrophy, bruxism, and severe attrition is reported.
As a final year undergraduate dental student at the University of Manchester, I visited the school of dentistry at the University of Otago in Dunedin, New Zealand (South Island) for the month of July, 1991 to do research for my non-clinical elective. This article is a description of some of the history of dentistry, dental education and the local way of life I glimpsed during this visit.
Restoration of dentitions affected by tooth surface loss has been a problem to the dental profession for many years. This problem is likely to increase as the population ages and retains more teeth into old age. This article describes a method of restoring teeth with non-carious loss of tooth tissue whilst conserving the remaining tooth tissue.
This paper reports a case of tooth surface loss as a result of the eating disorder pica. Background to the condition is discussed and the clinical findings and treatment of the patient outlined. The case illustrates a rare cause of wear which should be considered when patients present with an unusual pattern of tooth surface loss.
Cosmetic dentistry has evolved with the advent of more robust porcelain materials and ever-stronger bonding agents. This series of three articles aims to provide a practical overview of what is now possible both functionally and cosmetically from the preparation of a small number of teeth, through a whole smile, to full mouth rehabilitation. A complete diagnosis is the starting point to planning any cosmetic or functional changes. Guidance is given on the techniques used but adequate training must be considered essential before embarking upon modification in occlusal schemes or even minor adjustments in smile design. Understanding vertical dimension and how and when it can be changed has always been a challenging prospect for the general dental practitioner. This article aims to discuss the rationale behind changes in vertical dimension and demonstrate how it can be achieved in general practice assuming adequate hands-on postgraduate training has been completed.
A case of hereditary opalescent dentin is described, which showed the same clinical and radiological features as those reported previously. However, there was no evidence of osteogenesis imperfecta. While a diagnosis of type II dentinogenesis imperfecta was therefore made, this case also had features characteristic of type III dentinogenesis imperfecta. Treatment by means of an overdenture is described.
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Variation in the size, shape, number, arrangement, and wear pattern of the teeth of man has long been an area of great interest to physical anthropologists. In this paper some of the remarkable variations to be found in the human dentition are identified and translated in orthodontic terms. Teeth are by nature imperfect structures, often just as disfigured individually as the malocclusions they form collectively. It is important that the orthodontist cultivates an anthropologist's eye for tooth variations. With this sensitivity he shall surely enlarge his understanding of the limitations of orthodontic therapy and shall appreciate the valuable role of tooth altering procedures in achieving treatment success.
Dental attrition has been investigated in depth. Besides alterations in arch length due to attrition, skeletal and intra-arch differences were discovered. It is felt that these findings do have value in helping us realize that present-day concepts of proper occlusion cannot necessarily be applied to dentitions that existed at another time. A more thorough knowledge of occlusions exhibiting dental attrition provides information that is helpful in understanding more fully the nature of tooth eruption and associated dental arch occlusion and the interrelationships of these factors with supporting skeletal structures.
1. It is thought the differences shown to exist between the unworn sample and the worn sample would have been clearer if the criteria for the classification of worn had been more severe. Examination of the ranges of measurements would make one suspect some subjects suffered dental attrition to a degree that no enamel was left on the occlusal surfaces of the third molars without showing damage elsewhere. The author did not feel competent to assess third molars that had not only lost all their occlusal enamel but also one mm of dentin, so was unable to make his worn classification more stringent. Again the reader is reminded that broeken down or "worn out" dentitions were specifically excluded from the samples...
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An evaluation of overjet and attrition in skulls of aboriginal California populations, finding a strong negative correlation.