Abstract
The study was carried out to evaluate the clinical efficacy of Mineral trioxide aggregate (MTA) in arresting dental resorption and as a regenerative material especially for growth of bone and periodontal ligament. Tooth no 25 having Aggressive Dental Resorption (simultaneous presentation of apical and lateral perforating resorption) with discharging sinus and co-existing oral communication through periodontal pocket was treated with MTA. After thorough debridement and disinfection of the root canal, complete obturation of the root canal system was done with MTA and evaluated thereafter. Follow up examinations up to a period of 1 year could not reveal resolution of any of the preoperative signs and symptoms i.e. discharging sinus, periodontal pocket healing and mobility; also did not show radiographic evidence of arrest of resorption and bone or periodontal tissue formation. Clinical efficacy of MTA in arresting dental resorption with subsequent repair found questionable. However, Shorter period of disinfection, co-existence of oral communication with the resorptive defects through periodontium and non surgical treatment approach all or any one of these may be the concern for the failure. Keywords : Resorption, Perforation, MTA. DOI: 10.3329/bsmmuj.v2i1.3711 BSMMU J 2009; 2(1): 42-46
Highlights
When the apical portion of the root is resorbed so severely by external or internal resorption, biological apical limit of the canal disappears
Bit by bit condensation was done by the Schilder pluggers of appropriate length up to the apical limit and perforating resorptive defect of the canal to facilitate the induction of hard tissue barrier formation and to ensure proper adaptation of the material with the canal wall creating a three dimensional obturation.(fig 7,8,9) Verification of the condensation was done by radiographs.(fig 10) A damp cotton pellet was placed in the access cavity and it was closed with provisional restoration
Failure in the resolution of preoperative clinical features even after 12 months has turned the potentiality of Mineral trioxide aggregate (MTA) in arresting dental resorption into an uncertainty
Summary
When the apical portion of the root is resorbed so severely by external or internal resorption, biological apical limit of the canal disappears. 12.5 sets to a hard mass in approximately 4 hours thereby facilitate immediate repair of the perforation and barrier formation for obturation of the root canal.[11,12] Various researchers have reported the clinical success of MTA as a repair material over the other traditional materials. Bit by bit condensation was done by the Schilder pluggers of appropriate length up to the apical limit and perforating resorptive defect of the canal to facilitate the induction of hard tissue barrier formation and to ensure proper adaptation of the material with the canal wall creating a three dimensional obturation.(fig 7,8,9) Verification of the condensation was done by radiographs.(fig 10) A damp cotton pellet was placed in the access cavity and it was closed with provisional restoration.
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