The relationship between irregularity of the incisor teeth, plaque, and gingivitis: a study in a group of schoolchildren aged 11–14 years
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Date
1998Author
Ashley, F. P.
Usiskin, L. A.
Wilson, R. F.
Wagaiyu Evelyn G.
Type
ArticleLanguage
enMetadata
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SUMMARY The relationship between irregularity of teeth and periodontal disease was investigated
in 201 children aged 11–14 years. The upper and lower incisor teeth were assessed
for spacing, labio-lingual displacement, and mesiodistal overlap at each of the six contact
areas. Plaque and gingivitis were assessed at six sites on each of the four upper and four
lower incisor teeth. There was evidence for a direct relationship between the number of
contact areas with tooth displacement combined with overlap and the number of sites with
gingival redness (R= 0.25, P< 0.001), bleeding (R= 0.18, P< 0.01), and profuse bleeding
(R= 0.25, P<0.001). There was no evidence for a relationship between labio-lingual displacement
alone and gingivitis. One-hundred-and-twenty-eight subjects without tooth displacement
combined with incisor overlap had, respectively, 34, 15, and 35 per cent fewer sites with
redness (P< 0.01), bleeding (P< 0.05), or profuse bleeding (P< 0.01) than the 73 subjects
with overlap. The statistical significance of these differences was unaffected by covariate
adjustment to take account of the effect on gingivitis of variation in the number of sites with
plaque. There was no evidence of a relationship between incisor overlap and amount of plaque
in these subjects. The results indicate that overlapping of incisor teeth is directly related to
gingivitis and this relationship cannot be explained simply by an effect on oral hygiene.
Citation
European Journal of Orthodontics 20 (1998) 65–72Publisher
United Medical and Dental Schools of Guy’s and St Thomas’ Hospitals, London, UK Dental School, University of Nairobi, Kenya
Description
The relationship between irregularity of the incisor teeth,plaque, and gingivitis: a study in a group of schoolchildren aged 11–14 years.
Collections
- Faculty of Health Sciences (FHS) [10387]