Efficacy of Mineral Trioxide Aggregate as an Apical Plug in Non-Vital Young Permanent Teeth: Preliminary Results

Abstract

Purpose: The purpose of this study was to evaluate the efficacy of Mineral trioxide aggregate (MTA) clinically and radiographically as material used to induce root end closure in nonvital permanent teeth with immature apices (apexification) in children. Methods: The study included 30 non vital young permanent,single rooted teeth of 22 children between 8 and 13 years of age. Treatment followed a standard non-surgical root canal treatment protocol and the root canal was filled with a apical plug of 4-5 mm of MTA (white MTA – Angelus, Brazil), followed by gutta-percha obturation. The children were reviewed for 1 year at 3 month interval and the teeth were assessed clinically and radiographically. Results: MTA showed success rate of 100% both clinically and radiographically at the 12th months follow up and root end closure was seen in 86.6% of cases and root growth in 30% of cases. Conclusions: MTA showed clinical and radiographic success as an apexification material by inducing root end closure and root growth in non-vital young permanent teeth.

Intracannal pain remission in child with amelogenesis imperfecta. Case report

“…The use of calcium hydroxide in the short term does not negatively affect tooth resistance 30 . In our case, X-rays after six months of treatment has shown significant decrease in periapical lesions, being in agreement with studies of Annamalai & Mungara 28 and Sarris et al 31 . However, the latter suggest broader clinical trials to evaluate long term success.…”

“…On the other hand, Torabinejad et al 27 have reported antimicrobial properties of MTA for 5 out of 9 facultative bacteria more commonly found in infected root canals, however with no effect on strictly anaerobic bacteria. Annamalai & Mungara 28 have also reported 100% clinical and radiological success rate with MTA in the 12 th month of follow-up, while root extremity closing was observed in 86.6% of cases with root growth in just 30% of cases. In our case, the combination of calcium hydroxide was used as intracanal drug for 15 days to obtain a dry and infection-free canal.…”

“…In our case, apical barrier had 5 mm for being, according to some authors, stronger than that of 2 mm 32,33 . To induce apexification, MTA acts converting tricalcium oxide into calcium hydroxide when in contact with tissue fluids 28 . Calcium hydroxide is then dissociated in calcium and hydroxyl ions.…”

Repair of perforation with Mineral trioxide aggregate (MTA)

“…Two types of MTA are available, Grey and white. White MTA was preferred in this case since it is associated with the development of cementoblasts and keratinocytes [8], [9]; though both prove to be good in many perforation cases.…”

Alternativas clínicas para el tratamiento de dientes traumatizados con rizogénesis incompleta: una visión actualizada

“…Esta barrera puede estar compuesta por dentina, cemento, hueso, u osteodentina. Para obtener el estímulo necesario para la formación de la barrera apical deben ser colocados materiales inductores dentro del conducto radicular (8,9). Este protocolo de tratamiento no debe confundirse con apicogénesis, que es el tratamiento de un diente vital, cuyo objetivo principal es estimular el desarrollo fi siológico de la raíz y la formación del ápice (10).…”