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Tooth wear is a significant problem in the ageing population and has increased in prevalence over the last century owing to the increase in life expectancy. Further, with the advances in dentistry, people tend to retain more of their natural dentition until the seventh or eighth decade of their lives and leading to an increased number of people with tooth wear. A certain degree of physiological tooth wear is inevitable over a lifetime as a result of the continuous function of the dentition.
CPD/Clinical Relevance: A removable prosthesis, used in patients with severely worn teeth, is cost-effective compared to other prosthetic options and can be easily maintained hygienically.
Article
The predicted percentage of adults presenting with severe tooth wear has been reported to increase from 3% at the age of 20 years, to 17% at the age of 70 years. Therefore, there is a tendency to develop more tooth wear with age.1 The highest prevalence of tooth wear is shown by males (70%) than females (61%) according to the adult dental health survey carried out in the UK in 2009.2
A study by Lambrecht and co-workers in 1984 found that the physiological tooth wear is 29 µm/year for molars and 15 µm/year for premolars.3 When this wear rate accelerates owing to various exogenous and endogenous factors acting alone or together, there is progressive tooth wear. According to Loomans et al, pathological tooth wear is defined as an atypical type of wear for the age of the patient that causes pain or discomfort, functional problems, or deterioration of aesthetic appearance, and which, if it progresses, may give rise to undesirable complications of increasing complexity. The wear process is often multifactorial with an interplay among the processes of erosion, attrition, and abrasion.4 This aetiological classification was proposed by Pindborg in 1970.5 where the delineation of each aetiology is questionable clinically. Severe tooth wear could result from a mechanical cause, a chemical cause, or a combination of both. However, Hammoudi et al have proposed that erosion to be the leading cause of tooth wear.6
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