Apical barrier formation after incomplete orthograde MTA apical plug placement in teeth with open apex--report of two cases.

Two cases are reported in which incomplete placement of 4 mm mineral trioxide aggregate (MTA) plug was performed unintentionally at the apical third of permanent immature teeth with open apex and apical periodontitis. As confirmed radiographically, there were gaps between MTA and dentinal walls along the MTA-dentin interface. After setting of MTA was confirmed, endodontic treatment was completed and access was sealed with composite resin. At 6 to 16 months follow-up examinations, formation of dentin in contact with the MTA surface, as well as apical closure and periapical healing were ideied radiographically for both cases. The results of these cases showed that apical barrier formation and complete periapical healing is possible despite the incomplete apical placement of the MTA plug. This might be due to the biological properties of the MTA. Even so, an incomplete three-dimensional placement of the filling material is not advocated.

[1]  D. E. Slot,et al.  Histological responses of the periodontium to MTA: a systematic review. , 2013, Journal of clinical periodontology.

[2]  E. Kontakiotis,et al.  Non-surgical retreatment of a failed apicoectomy without retrofilling using white mineral trioxide aggregate as an apical barrier. , 2012, Brazilian dental journal.

[3]  R. Abouqal,et al.  Apexification of immature teeth with calcium hydroxide or mineral trioxide aggregate: systematic review and meta-analysis. , 2011, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[4]  A. O’Connell,et al.  Treatment of open apex teeth using two types of white mineral trioxide aggregate after initial dressing with calcium hydroxide in children. , 2011, Dental traumatology : official publication of International Association for Dental Traumatology.

[5]  M. Turgut,et al.  Mta Apical Plugs in the Treatment of Traumatized Immature Teeth with Large Periapical Lesions Case Report , 2022 .

[6]  V. D’antò,et al.  Effect of mineral trioxide aggregate on mesenchymal stem cells. , 2010, Journal of endodontics.

[7]  Hai Zhang,et al.  Effects of mineral trioxide aggregate on human dental pulp cells after pulp-capping procedures. , 2010, Journal of endodontics.

[8]  S. Friedman,et al.  Mineral trioxide aggregate apical plugs in teeth with open apical foramina: a retrospective analysis of treatment outcome. , 2009, Journal of endodontics.

[9]  S. Kuttler,et al.  Mineral trioxide aggregate obturation: a review and case series. , 2009, Journal of endodontics.

[10]  E. Hakki,et al.  Effects of mineral trioxide aggregate on cell survival, gene expression associated with mineralized tissues, and biomineralization of cementoblasts. , 2009, Journal of endodontics.

[11]  H. Duncan,et al.  Histological, ultrastructural and quantitative investigations on the response of healthy human pulps to experimental capping with Mineral Trioxide Aggregate: a randomized controlled trial. 2008. , 2009, International endodontic journal.

[12]  Aaron Schindeler,et al.  Bone remodeling during fracture repair: The cellular picture. , 2008, Seminars in cell & developmental biology.

[13]  H. Duncan,et al.  Histological, ultrastructural and quantitative investigations on the response of healthy human pulps to experimental capping with mineral trioxide aggregate: a randomized controlled trial , 2007, BDJ.

[14]  T. Umemoto,et al.  Expression of bone extracellular matrix proteins on osteoblast cells in the presence of mineral trioxide. , 2007, Journal of endodontics.

[15]  Giuseppe Polimeni,et al.  Biology and principles of periodontal wound healing/regeneration. , 2006, Periodontology 2000.

[16]  K. Gauba,et al.  Comparative evaluation of endodontic management of teeth with unformed apices with mineral trioxide aggregate and calcium hydroxide. , 2006, Journal of dentistry for children.

[17]  M. Somerman,et al.  Cementoblasts maintain expression of osteocalcin in the presence of mineral trioxide aggregate. , 2003, Journal of endodontics.

[18]  R. Holland,et al.  Mineral trioxide aggregate repair of lateral root perforations. , 2001, Journal of endodontics.

[19]  M. Torabinejad,et al.  Clinical applications of mineral trioxide aggregate. , 2004, Journal of endodontics.

[20]  M. Torabinejad,et al.  Using mineral trioxide aggregate as a pulp-capping material. , 1996, Journal of the American Dental Association.

[21]  M Torabinejad,et al.  Investigation of mineral trioxide aggregate for root-end filling in dogs. , 1995, Journal of endodontics.

[22]  M. Torabinejad,et al.  Physical and chemical properties of a new root-end filling material. , 1995, Journal of endodontics.

[23]  M. Torabinejad,et al.  Use of mineral trioxide aggregate for repair of furcal perforations. , 1995, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[24]  M. Torabinejad,et al.  Dye leakage of four root end filling materials: effects of blood contamination. , 1994, Journal of endodontics.

[25]  T R Pitt Ford,et al.  Sealing ability of a mineral trioxide aggregate when used as a root end filling material. , 1993, Journal of endodontics.