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Lookup NU author(s): Professor Mark Thomason, Dr Julie Fitzgerald, Dr Nick Steen, Emerita Professor Helen Foster
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AIM: To establish whether there is an increased prevalence and extent of enamel defects associated with Juvenile Idiopathic Arthritis (JIA) in patients in the North of England. STUDY DESIGN: clinical examination of subjects and age and sex matched controls. METHODS: The labial surfaces of all erupted permanent teeth in subjects, as well as age and sex matched controls, were examined. They were classified for type and extent of defects according to the Modified DDE index. The records of 146 subjects and 142 controls were available for analysis. STATISTICS: defects were expressed as the percentage of subjects or controls with or without any defects or specific types of defect. Fisher's exact test was used to compare the prevalence of disease in the two groups with significance being accepted at the 5% level. In addition, 95% confidence intervals for the relative risk of disease in the two groups were derived. RESULTS: There was no significant difference between subjects and controls for the presence of any type of defect (p=0.48), demarcated opacities (p=0.39), diffuse opacities (p=0.71), or hypoplasias (p=0.19). There was no significant increase in severity of defects in subjects compared with controls. There was also no significant difference when comparing the group diagnosed before the age of 4 (0-3) and the group diagnosed after the age of 4 (>4) years. CONCLUSION: There was no greater overall prevalence of enamel defects or specific type of defects and no greater extent of them in subjects with JIA compared with age and sex matched controls.
Author(s): Welbury RR, Thomason JM, Fitzgerald JL, Steen IN, Foster HE
Publication type: Article
Publication status: Published
Journal: European Journal of Paediatric Dentistry
Year: 2002
Volume: 3
Issue: 4
Pages: 217-221
ISSN (print): 1591-996X
ISSN (electronic): 2035-648X
Publisher: Casa Editrice Ariesdue
URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12870996
