Jamil Awad Shibli

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All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

1 INTRODUCTION Molars with classes II and III furcation defects are recognized as complexity factors for determining the stage of periodontitis in the new AAP/EFP classification of periodontal diseases.1, 2 This is due to the fact that they exhibit a higher rate of tooth loss than molars without furcation involvement3 and provide a significant challenge for the clinician to accomplish a successful treatment.4 Although access flap surgery (open flap debridement) and nonsurgical therapies have...