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According
to national oral health survey, a dental case is prevalent
among 63.1% of 15 year olds and much as 80.2% among adults in
the age group of 35-44 years. Periodontal diseases (gum
diseases) are prevalent in 67.7% of 15 year old and in 89.6%
of 35-44 year olds. The mean DMFT( decayed, missing and filled
teeth) score is 2.4 in 15 years olds and 5.4 in adults.
Over half the population in India is still does not have
access to modern dental case and the problem is critically low
dentist- population ratio. Who recommended 1:7,500 dentist –
population ratio but in India is 1:22,500. This limits the
curative approach to tackle dental problems. Dental disease
can best be detected at the early stage and primary
prevention. Unfortunately, the awareness leaves of good or all
hygiene are abysmally low.
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CLASS
SURVEY DONE BY THE TEAM OF DENTAL MIRROR IN THE SCHOOL |
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The Team had done the survey in the school gathering
information regarding students who had visited a
dentist and the students who had some dental problems but did
not visit the Dentist following
information was gathered by the Team |
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Class & Sec
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VI A |
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VI B |
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VI C |
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VI D |
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VI E |
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VII A |
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VII B |
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VII C |
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VII D |
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VII E |
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VIII A |
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VIII B |
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VIII C |
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VIII D |
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VIII E |
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IX A |
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IX B |
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IX C |
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IX D |
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IX E |
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X A |
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X B |
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X C |
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X D |
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X E |
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No. of Student
Enroll.
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46 |
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48 |
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45 |
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45 |
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46 |
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47 |
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46 |
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48 |
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45 |
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47 |
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45 |
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44 |
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45 |
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45 |
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45 |
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46 |
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43 |
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42 |
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41 |
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45 |
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46 |
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46 |
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48 |
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45 |
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47 |
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No. of Student
Present
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45 |
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47 |
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45 |
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44 |
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44 |
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44 |
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45 |
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47 |
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44 |
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46 |
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45 |
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43 |
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44 |
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42 |
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44 |
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46 |
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42 |
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41 |
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40 |
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44 |
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45 |
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46 |
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47 |
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44 |
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46 |
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No. of Student
Who have Visited
Dentist
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26 |
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25 |
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15 |
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20 |
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20 |
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25 |
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20 |
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30 |
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10 |
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28 |
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25 |
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17 |
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25 |
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15 |
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18 |
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23 |
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26 |
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29 |
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20 |
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26 |
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28 |
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15 |
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28 |
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29 |
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30 |
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No. of Student
having dental Problem but have not visited dentist |
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5 |
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6 |
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5 |
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8 |
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8 |
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6 |
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7 |
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8 |
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5 |
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5 |
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3 |
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5 |
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9 |
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4 |
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5 |
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5 |
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6 |
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5 |
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4 |
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4 |
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7 |
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4 |
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5 |
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8 |
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5 |
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BAR CHART SHOWING THE PROBABILITY OF THE DISEASE BASED ON THE
SYMPTOMS |
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Bar Chart showing possibilities of Caries |
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Bar Chart showing possibilities of Gengivitis |
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PROBABILITY MODEL FOR VARIOUS DENTAL DISEASES |
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CASE 1:
SYMPTOMS
• Irritation in gums
• Pain(pricking,mild)
• Bleeding(mild)
• swelling in gums
• senstivity(shere)
• visible pits
Diagnosis using chain rule
1-Probability of gingivitis
= .4 * 0.0 * 1 * 0.9 * 0.9
= 0.0
2-Probability of Caries
=.4*.6*.1*.1*.6*.9
= .0010
3-Probability of peripical abcess
=0.8 * 1 * 0.6 * 0.0* 1
= 0.0
4-Probability of pericoronal abcess
=1 * 1 * 0.2 * 1 * 1 * 0.0
= 0.0
5-Probability of apical periodontitis
=0.9 * 0.2 * 0.1 * 0.2
= 0
6-Probability of pulpitis
=0.7* 0.1 * 0.6 * 0.4 * 0.05
= 0.00084
Patient is suffering from Caries
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CASE 2:
SYMPTOMS
• pus
• Irritation in gums
• Bleeding (severe)
• Swelling in gums
• Senstivity very low
Diagnosis using chain rule
1-Probability of gingivitis
= .4 * 0.3 * .9 * 0.7 * 0.1
= 0.0075
2-Probability of Caries
=.1*.1*.1*.6*.4
= .00024
3-Probability of peripical abcess
=0.8 * 1 * 0.6 * 0.0* 1
= 0.0
4-Probability of pericoronal abcess
=1 * 1 * 0.2 * 1 * 1 * 0.0
= 0.0
5-Probability of apical periodontitis
=0.9 * 0.2 * 0.1 * 0.2
= 0
6-Probability of pulpitis
=0.7* 0.1 * 0.0 * 0.4 * 0.05
= 0.0
Patient is suffering from Gingivitis
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CASE 3:
SYMPTOMS
• Pain(throbbing,contineous)
• Pus
• Mouth opening
• Wasting of teeth
• Pockets
• Blackening of teeth
• Redness
• Visible pits
Diagnosis using chain rule
1-Probability of gingivitis
= .2 * 0.2 * .3 * 0.1 * 0.4
= 0.00048
2-Probability of Caries
=.2*.4*.0*.6*.4
= .0
3-Probability of peripical abcess
=0.8 * .8* 0.7 * 0.4* 1*1*1*.1
= 0.017
4-Probability of pericoronal abcess
=1 * 1 * 0.2 * 1 * 1 * 0.0
= 0.0
5-Probability of apical periodontitis
=0.9 * 0.2 * 0.1 * 0.2
= 0
6-Probability of pulpitis
=0.7* 0.1 * 0.0 * 0.4 * 0.05
= 0.0
Patient is suffering from Peripical abcess
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CASE 4:
SYMPTOMS
• Blackening of teeth
• Pain(throbbing,intermittent)
• Wasting of teeth
• Visible pits(deep)
Diagnosis using chain rule
1-Probability of gingivitis
= .2 * 0.2 * .0 * 0.4
= 0.0
2-Probability of Caries
=.2*.4*.6*.1
= .0048
3-Probability of peripical abcess
=0.1 * .5* 0.7 * 0.4*
= 0.014
4-Probability of pericoronal abcess
=1 * 0.2 * 1 * 0.0
= 0.0
5-Probability of apical periodontitis
=0.9 * 0.2 * 0.1 * 0.2
=0.0036
6-Probability of pulpitis
=0.7* 0.8 * 0.4 * 0.3
= 0.067
Patient is suffering from Pulpitis
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References
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All the
information was collected by the students
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Mr.Mohit
Gangwar andMr.Manuj
Darbari of BBD
LUCKNOW
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