Journal of the Korean Academy of Pediatric Dentistry 2013;40(2):120-126.
Published online May 31, 2013.
VITAL PULP THERAPY USING PLATELET-RICH FIBRIN IN AN IMMATURE PERMANENT TOOTH : CASE REPORTS
Ka-Young Lee, Sang-Ho Lee, Nan-Young Lee
Department of Pediatric Dentistry, College of Dentistry, Chosun University 
Correspondence:  Sang-Ho Lee,  Tel: 062-220-3860, Email: shclee@chosun.ac.kr
Received: 10 April 2013   • Accepted: 8 May 2013
Abstract
Preserving the pulp is important in the treatment of carious pulp exposure in young permanent teeth. Pulpotomy is a vital pulp therapy in which a portion of the coronal pulp tissue is surgically removed, and the remaining radicular tissue is covered with suitable material that protects the pulp from further injury and permits and promotes healing. It is important to develop biocompatible treatment directed at maintaining pulp vitality and increasing tooth longevity. Platelet-rich fibrin (PRF) has been referred to as a second-generation platelet concentrate. Two clinical cases in which PRF was applied as a medicament after pulpotomy of an immature permanent tooth are presented. After isolation, caries removal and pulpotomy with PRF was performed. A layer of mineral trioxide aggregate (MTA) was placed over the PRF, and the final restoration was performed. Postoperatively, the patient had no pain or discomfort, and follow-up radiographs revealed normal periodontal ligament space and trabecular bone pattern.
Key Words: Pulpotomy, Platelet-rich fibrin, Immature permanent toot


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