perceived vs actual oral health status of maltese school ... · 10/2/2017 · rx) 34.5% caries...
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Perceived vs Actual Oral Health Status of Maltese School Children
Dr Ethel Vento Zahra
Dr Paula Vassallo
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Data Collection
– Stratified random sampling, all types of schools, Malta and Gozo
–n= 603 12 year olds part of National Oral Health Survey
–n=367 8 year olds part of COSI survey –All children included in the study were given:
• a full mouth examination • a questionnaire sent home to parents (8 year
olds - 74.1% response rate) or administered to the child (12 year olds – 99.3% response rate)
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Data Assessment
• Perceived Health of teeth assessed by a Likert scale with 6 categories ranging from Excellent to Very Poor
• Actual Health for decay assessed by DMFT (decayed, missing, filled permanent teeth) and subdivided into categories to match the perceived health Likert scale.
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Data Assessment
• Perceived Health of gums assessed by a Likert scale with 6 categories ranging from Excellent to Very Poor
• Actual Health for periodontal health assessed by scoring:– presence of plaque and calculus in 8 year olds
– presence of plaque, calculus, bleeding or inflamed gingivae on 6 predetermined tooth surfaces in 12 year olds
The resulting data was then subdivided into categories to match the perceived health Likert scale
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Data Analysis
• Data analysed using SPSS by Dr Neville Calleja, Department of Health Information and Research
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Dental Caries
8 year oldsDMFT 1 lesions affecting both enamel and
dentineDMFT 0.21 lesions affecting dentine only (requiring
Rx)
53.4% caries free when considering both enamel and dentine lesions
57.5% caries free when considering dentine lesions only
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Dental Caries
12 year oldsDMFT 2.3 lesions affecting both enamel and
dentineDMFT 0.74 lesions affecting dentine only (requiring
Rx)
34.5% caries free when considering both enamel and dentine lesions
67.8% caries free when considering dentine lesions only
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Perceived vs Actual Dental Health
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perceived
caries enamel
caries dentine.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
ExcellentVery good
GoodAverage
PoorVery Poor
perceived
caries enamel
caries dentine
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Perceived vs Actual Dental Health
• Perceived health of teeth and both caries in enamel and caries in dentine are highly correlated p value of .000
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Periodontal Health
8 year oldsMean of 1.2 teeth were scored for presence of plaque
Mean of 0.25 teeth were scored for calculus
Overall mean of 1.45 teeth scored for these early markers for periodontal disease
12 year oldsMean of 15 out of 48 surfaces examined scored for plaque, calculus, bleeding or inflamed gingivae
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Perceived vs Actual Periodontal Health
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Perceived vs Actual Periodontal Health
• Perceived health of gums and actual periodontal health are highly correlated –
p value of .014
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Perceived vs Actual Periodontal Health
Further analysis for correlations gave:
p value of 0.002 for perceived health and level of education of father – significant correlation
p value of 0.088 for actual health and level of education of father – no significant correlation, but could possibly be correlated if the study had more power with a larger sample size.
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Limitations
74.1% response rate in questionnaires for 8 year olds
Questionnaire filled in by parents – possible bias issues
Narrow age range – further analysis of other age groups that are part of the National Oral Health Survey should give a wider view
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Conclusion
Very significant correlation between perceived and actual oral health in these two age groups.
Further investigation required as to:
Whether service use reflects this pattern
Whether perception and actual oral health are also correlated in older age groups in the population
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Thank you for your attention.Enjoy your active networking break!
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