الفهرس 
ACKNOWLEDGMENTOnly 14 pages are availabe for public view
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Abstract
The current study was carried out to compare the combined effect of
low level laser therapy (LLLT) and ascorbic acid on tooth movement during
canine retraction, regarding the rate of tooth movement, the amount of
increase in bone density around the first permanent maxillary molars, the
amount of anchorage loss, and the mesio-distal axial inclination of the first
permanent maxillary molars and maxillary permanent canines.