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. Author manuscript; available in PMC: 2008 Apr 1.
Published in final edited form as: J Endod. 2007 Feb 20;33(4):391–398. doi: 10.1016/j.joen.2006.10.009

Fig. 2.

Fig. 2

Orthograde filling of root canals with mineral trioxide aggregate (MTA) as an apexification material represents a contemporary version of the primary monoblock in attempts to strengthen immature tooth roots. A. Pre-operative radiograph of a central incisor (tooth 8) with incompletely formed root and open root apex that was necrotic and exhibiting radiographic signs of chronic apical periodontitis. B. Post-operative radiograph of an apexification procedure that was performed with orthograde filling of the entire root with white MTA. C. A 14 month post-treatment radiograph showing gradual bone regeneration along the periapex.