carious
2.Conclusion: The pit and fissure sealant have significant preventive effect on carious teeth.
3.Study of Treating Carious Mandibular Primary molar in Perfora- tion of Pulp Bottom with ZOE Iodoform Paste
4.This case report will present an immature mandibular first permanent molar with carious exposure treated by partial pulpotomy.
5.Methods: In one mouth, the teeth of one side were as test group, other side as control group, the first molar in non-carious pit and fissure of 500 children were sealed.
6.Methods In one mouth, the teeth of one side were as test group, other side as control group, the first molar in non - carious pit and fissure of 1 089 children were sealed, the retention rate of plastic membrane and the protection rate of sealant were observed at three months intervals.

