الفهرس 
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Abstract
This study was carried-out in an attempt to compare the effect of using tooth-brush and Miswak on gingival condition and oral hygiene status
Fifteen girls, ages ranging between twenty and twenty- five years old and appearing free from any systemic disease, have been divided randomly to two groups : Miswak group and tooth-brush group
Clinical dental examination and sampling of saliva were taken from them at the beginning and at the end of study period of 3 months . Clinical dental evaluation was applied by using :
1. Plaque index : Silness and Löe
2. Gingival index Löe and Silness
3. Retention index : Bjorby and LOe
Biochemical evaluation included estimation of salivary PH, fluoride and vitamin C concentrations
Data obtained from the present investigations revealed
1. A significant decrease in plaque index was observed in both groups
2. Severity of gingival inflammation-was decreased at both groups with a significant improvement in Miswak group only.