ABSTRACT
INTRODUCTION: The use of biocompatible materials like mineral trioxide aggregate (MTA) may improve the prognosis of teeth with root perforations. METHODS: The treatment outcome of root perforations repaired between 2000 and 2006 with MTA was investigated. Twenty-six patients received treatment with MTA in 26 teeth with root perforations. Treatment was performed by supervised undergraduate students (29%), general dentists (52%), or dentists who had focused on endodontics (19%). Perforation repair by all treatment providers was performed using a dental operating microscope. Calibrated examiners assessed clinical and radiographic outcome 12 to 65 months after treatment (median 33 months, 81% recall rate). Pre-, intra-, and postoperative information relating to potential prognostic factors was evaluated. RESULTS: Of 21 teeth examined, 18 teeth (86%) were classified as healed. None of the analyzed potential prognostic factors had a significant effect on the outcome. CONCLUSIONS: MTA appears to provide a biocompatible and long-term effective seal for root perforations in all parts of the root.
Subject(s)
Aluminum Compounds/therapeutic use , Calcium Compounds/therapeutic use , Oxides/therapeutic use , Root Canal Filling Materials/therapeutic use , Silicates/therapeutic use , Tooth Injuries/therapy , Tooth Root/injuries , Adult , Dental Instruments/adverse effects , Drug Combinations , Female , Follow-Up Studies , Furcation Defects/therapy , Humans , Male , Middle Aged , Root Canal Preparation/adverse effects , Root Canal Preparation/instrumentation , Statistics, Nonparametric , Tooth Injuries/etiology , Treatment OutcomeABSTRACT
INTRODUCTION: Teeth with open apical foramina present a challenge during root canal treatment, and little is known about the clinical outcome of treatment in such teeth. This retrospective study assessed healing of teeth with open apices managed by the placement of mineral trioxide aggregate apical plugs. METHODS: Seventy-two patients with 78 teeth with apical resorption or excessive apical enlargement, treated between 2000 and 2006, were contacted for follow-up examination 12 to 68 months after treatment (median 30.9 months). Treatments were provided by supervised undergraduate students (27%), general dentists (32%), or dentists who had focused on endodontics (41%). The outcome based on clinical and radiographic criteria was assessed by calibrated examiners and dichotomized as "healed" or "disease." RESULTS: Of 56 teeth examined (72% recall), 84% were healed. Teeth without or with preoperative periapical radiolucency had a healed rate of 100% and 78%, respectively. None of the variables analyzed had a significant effect on the outcome. CONCLUSION: The results supported the management of open apical foramina with mineral trioxide aggregate apical plugs.
