مقايسه كارآيي روشهاي مختلف پيشگيري در ميزان پلاك دنداني در دانش آموزان 12 ساله منطقه 6 تهران

Comparison of the effect of different preventive measures on plaque index

Aim: This survey was designed to compare the efficiency of preventive methods on plaque index (PI) of 12 year old Tehranian pupils. Method and Materials: 16 secondary schoold were selected randomly and then divided into four groups: Group I: the control group with no preventive program. Group II: the first trial group (Education G) who were introduced to oral hygiene through audio-visual training_ Group III: the second trial group (Promotion G) who Were persuaded practically. Group IV: The third trial group (Education and Promotion G) who were both trained and persuaded practically.P1 was recorded both before and after intervention using Quigley - Hein plaque index, which is completed. Results: PI was increased from 30.8% (grade 3) to 48.3% (grade 4) in control group (P<0.115)_ while its decrease was seen from 32.9% (grade 3) to 407% (grade 2) in group 11 (P<0.05). PI increased form 31.9% (grade 3) to 39.1% (grade 4) in group III_ In group IV. PI decreased from 31.6% (grade 3) to 38.6 (grade 2) (P<0.05). Conclusion: Education and training has art obvious effect on increase of the level of oral hygiene.