The project was designed to study the accumulation of @entity1608 on the tooth surface in school @entity1 . One hundred and twenty two 10-15 years of age school @entity1 in both sexes were participated in the study. They were evaluated by a dentist for the presence and quantity of @entity1608 on the labial and lingual surfaces of the lower six anterior teeth using Volpe-Manhold @entity1608 scoring method. The subjects were divided into three groups according to their @entity1608 scores as "slight" (10-25 mm.) "moderate" (26-40 mm.) and "heavy" (greater than 40 mm.). Then all subjects received a complete oral prophylaxis, including the removal of all @entity527 . At six months and twelve months after oral prophylaxis all subjects were evaluated for the @entity1608 deposition by the same dentist. The results revealed that redeposit of @entity1608 at six and twelve months of the three groups were statistically different (p less than 0.05). The "slight" @entity1608 group had the @entity1608 deposit, after oral prophylaxis, less than the "moderate" and the "heavy" group. The "heavy" group had the @entity1608 deposit much more than the "moderate" group.

[Calculus accumulation on tooth surface in XXXX ].

@entity1 :: ('9606', 'Species') :: ['children'] @entity527 :: ('MESH:D058225', 'Disease') :: ['subgingival and supragingival deposits'] @entity1608 :: ('MESH:D002137', 'Disease') :: ['calculus deposits', 'calculus']
@entity1 :: (9606,Species) :: ['children']
