期刊
JOURNAL OF ENDODONTICS
卷 39, 期 1, 页码 138-144出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.joen.2012.09.015
关键词
Apical periodontitis; cementoid/osteoid tissue; immature permanent tooth; platelet-rich plasma; revascularization/revitalization
Introduction: An immature mandibular right first molar (#30) with apical periodontitis of a-9-year-old boy was treated With a revascularization/revitalization procedure Using either a mixture of platelet:rich plasma (PRP) and a blood clot Or a WOO clot alone on the seine tooth. Methods: Tooth #30: fractured 2 years and 1 month after the revascularization/revitalization procedure and Could not be saved. The tooth was extracted, and processed for histologic examination. to determine the nature Of the tissues that formed in the Canals. Results: Clinically, the endodontic treatment of the,case was successful based on the resolution of apical periodontitis and the absence of clinical signs and Symptoms. Histologically, the tissues formed in the distal, and mesial canals were mineralized tissue similar to cemenitoid/osteoid tissue and uninflamed fibrous connective tissue regardless of PRP or no PRP treatment. No tissue characterized by the presence of odontoblast-like Cells, polarized. along the dentin-like mineralized :tissue was observed. Conclusions: The tissues:formed in,the canals were Mineralized tissue and some fibrous Connective tissue. No pulp-like tissue characterized by the presence of odontoblast-like cells Was observed lining the dentin-like Mineralized tissue. (J Endod 2013;39:138-144)
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