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Title: Tooth wear associated with dietary factors and its prevention
Author: Hooper, Susan Mary
ISNI:       0000 0001 2416 9351
Awarding Body: University of Bristol
Current Institution: University of Bristol
Date of Award: 2015
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Tooth wear is now reported in large numbers of children and young adults, and this is predominantly thought to be related to enamel and dentine erosion. Changes in diet, lifestyle and social behaviour are all considered to contribute to this concerning trend in young dentitions. This dissertation investigates methods for measuring tooth wear in vitro and in situ, studies the effects of erosion and abrasion on enamel and dentine, and explores ways to limit the damaging effects of these processes. The literature review considers the structure of normal dental tissues and the consequences of tooth wear before reviewing enamel and dentine erosion in greater detail, together with ways of addressing this condition for the benefit of future generations. Ten published works are included in this dissertation. Classic methodology for in situ erosion studies was improved and also applied to combine assessment of abrasion and erosion. Results of studies undertaken confirmed the erosive potential of conventional and modified citric and malic acid based fruit juices, acid based fruit drinks, sports drinks and acidic fruit flavoured coatings on chewing gum. The erosive effect of acid based fruit drinks was shown to be reduced by adding calcium [at both room and elevated temperatures], or adding calcium with maltodextrin, or adding calcium with phosphate at room temperature. Further studies showed protection against an erosive challenge in situ, by an experimental fluoride-based toothpaste containing sodium hexametaphosphate, and the benefit of a low RDA [relative dentine abrasivity] paste on dentine. Finally, two studies confirmed the anti-erosive properties of stannous-containing sodium fluoride toothpaste compared with competitor formulations. Conclusions from the work in this dissertation are that acidic based fruit drinks can be beneficially modified to reduce enamel and dentine erosion and that additional protection can be gained from the use of customised anti-erosion toothpastes.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available