الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
1- Evaluate incidence of cervical crown or root fracture following PRF revascularization versus traditional root canal treatment using root canal obturation with cold lateral compaction technique in non-vital anterior permanent teeth with closed apex.
2- Evaluation of the Postoperative Pain intensity after 6, 12, 24, and 48 hours between the two groups.