A longitudinal study of tooth wear in orthodontically treated patients

Knight, Douglas J.; Leroux, Brian G.; Zhu, Charlene; Almond, John; Ramsay, Douglas S.

doi:10.1016/s0889-5406(97)70246-4

Cited by 40 publications

(45 citation statements)

References 24 publications

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“…This concurs with previous observations that the prevalence of tooth wear in adolescents is increasing. [12][13][14] Palatally exposed dentine occurred in 8% of this sample compared with the low prevalence in London of only 2% of 12-year-olds 10 and 1% of 14-year-olds. 15 This is harder to explain although regional differences could exist.…”

Section: Mandibular Dentine Exposedmentioning

confidence: 99%

“…Significantly more wear amongst males than females supports previous results. 2,3,14 This can be attributed to stronger masticatory musculature and greater biting force in males and it has been reported that boys drink more fizzy drinks than girls. 16 Prior to this study there have been no investigations to see what (if any) protective influence fluoridation has on tooth wear (particularly erosion) in the UK.…”

Section: Mandibular Dentine Exposedmentioning

confidence: 99%

See 1 more Smart Citation

Epidemiological studies of tooth wear and dental erosion in 14-year-old children in North West England. Part 1: The relationship with water fluoridation and social deprivation

Bardsley

Taylor

Milosević³

2004

Br Dent J

137

116

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Section: Mandibular Dentine Exposedmentioning

confidence: 99%

Section: Mandibular Dentine Exposedmentioning

confidence: 99%

Epidemiological studies of tooth wear and dental erosion in 14-year-old children in North West England. Part 1: The relationship with water fluoridation and social deprivation

Bardsley

Taylor

Milosević³

2004

Br Dent J

137

116

View full text Add to dashboard Cite

“…There is some evidence to support this from the study undertaken on reviewing tooth wear taken for orthodontic reasons suggesting suspectibility to tooth wear. 7 Tooth wear indices remain the only reliable method of assessing wear over long periods of time and have proved to be effective in measuring the prevalence of wear in populations. [1][2][3]11 The Smith and Knight index, 9 although used widely, does not discriminate wear particularly well once dentine is exposed.…”

Section: Discussionmentioning

confidence: 99%

“…Knight et al 7 reported longitudinal measurement of wear from observations of orthodontic stone casts of patients over an average of 20 years. The authors measured occlusal/incisal wear in the pre-treatment and post orthodontic treatment records of 223 patients treated and they reported that wear could be predicted from the appearance of the study casts taken when they were in the mixed dentition stage.…”

mentioning

confidence: 99%

Retrospective long term monitoring of tooth wear using study models

Bartlett

2003

Br Dent J

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Objective Tooth wear is recognised as a common feature of European dentitions. However, little is known about its progression in susceptible patients. The aim of this study was to assess the degree and progression of tooth wear in patients by examining study casts taken of their teeth on two separate occasions. Design Over 500 sets of study casts taken during an 18-year period from patients referred for a variety of restorative procedures, were examined at Guy's Dental Hospital. Of these, 34 cases were found to have consecutive models taken at two time intervals and these were used to assess the progression of tooth wear. Study models from 19 females and 16 males, with an average age of 26 years (range 18-60) at the time of their first presentation and were all examined by a single operator. The Smith and Knight tooth wear index was used to assess the degree of tooth wear at presentation and then at another time which was a median of 26 months (interquartile range 14 -50 months) later. Results The most common initial TWI score per surface was 1, with 54% of surfaces affected at the first assessment and 57% at the second. Score 2 was less common (14% at both assessments) and the scores for 3 and 4 combined were relatively uncommon with 5% of surfaces effected. Minimal progression of tooth wear was observed on study casts with only 7.3% of surfaces involved. Conclusion In this sample, tooth wear was a slow, minimally progressive process.Tooth wear is increasingly recognised as a common feature of European dentitions with alarmingly high levels observed in children and adults. [1][2][3] Despite this data indicating that tooth wear is prevalent, little is known about its progression. The major problem with measuring tooth wear accurately is the identification of reproducible reference points that are themselves not eroded by acids.An area that has shown promise on the measurement of tooth wear is laser profilometers which scan replicas of the worn teeth. [4][5][6] However, their use remains within the confines of clinical research. Therefore comparing changes on study models of patients with worn teeth remains the most convenient clinical method to measure tooth wear. If the activity is recognisable from obvious changes on sequential study casts then there is justification to treat the wear with conventional restorative techniques. On the other hand if the patient's main concern is preservation of tooth tissue, reviewing the wear would be a more effective management.Knight et al 7 reported longitudinal measurement of wear from observations of orthodontic stone casts of patients over an average of 20 years. The authors measured occlusal/incisal wear in the pre-treatment and post orthodontic treatment records of 223 patients treated and they reported that wear could be predicted from the appearance of the study casts taken when they were in the mixed dentition stage. Pintado et al 8 measured wear over two years on 18 adults and also reported that attrition had progressed. Yet there remains scarce information on whethe...

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“…They were blinded with regard to which group the dental casts belonged. On the basis of the degree of abrasion a variable score from 0 to 3 was assigned to posterior teeth, according to the method described by Knight et al 12 ( Fig. 2).…”

Section: Methodsmentioning

confidence: 99%