الفهرس 
Title: Clinical Evaluation of Platelet rich fibrin versus subepithelial connective tissue graft, for soft tissue augmentation around implant in the aesthetic zone: A randomized control clinical trial
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Abstract
Dental implants have been considered a successful treatment throughout decades and have been used to replace missing teeth for more than half a century. They are considered to be an important contribution to dentistry as they have revolutionized the way by which missing teeth are replaced with a high success rate. As the use of dental implants has become much more common, dental personnel are more likely now to see patients who have implantsupported/retained restorations. Implant success not only depended on ossieointegration but also on esthetics that became a main criterion for implant acceptance. One of the major factors that affected the success of esthetics around implants was soft tissue biotype since its deficiency was believed to affect the crestal bone, facial recession, deficient papilla, and it might not mask the implant metallic color.Therefore, soft tissue augmentation techniques could be performed not only to enhance soft tissue thickness and esthetics but also could reduce the crestal boneloss. One of the most accepted methods used to enhance soft tissue around implant is the subepithelial connective tissue graft (SCTG). It has been regarded as a reliable and predictable procedure that provided a satisfactory esthetic outcome, making it a popular alternative for clinicians. Having many advantages such as being inexpensive, versatile, less invasive and easily available; in addition to its ability to provide successful outcomes than other autogenous harvesting techniques with a short healing period had put the SCTG as a golden standard for treatment