%0 Journal Article %T Estudo longitudinal do sucesso cl¨ªnico-radiogr¨¢fico de dentes tratados com medica£¿£¿o intracanal de hidr¨®xido de c¨¢lcio %A Nery %A Mauro Juvenal %A Cintra %A Luciano Tavares Angelo %A Gomes-Filho %A Jo£¿o Eduardo %A Dezan-Junior %A Eloi %A Otoboni-Filho %A Jos¨¦ Arlindo %A Sivieri-Araujo %A Gustavo %A Nery %A Thiago Santos %A Salzedas %A Leda Maria Pescinini %J Revista de Odontologia da UNESP %D 2012 %I Scientific Electronic Library Online %R 10.1590/S1807-25772012000600005 %X introduction: root canal treatment plays a fundamental role in abolishing infections in teeth showing pulp necrosis. objective: we aimed to evaluate the clinical and radiographic efficacy of root canal treatment for teeth with chronic periapical lesions, which was performed by students of undergraduate dentistry, faculty of dentistry, campus ara£¿atuba - unesp. material and method: we selected 100 patients who had teeth with chronic periapical lesions. after biomechanical preparation, the root canal receiving of calcium hydroxide intracanal dressing during the 14 days. the root canals were filled with a calcium hydroxide-based endodontic sealer. follow-up examinations were performed for at least 8 months. result: an analysis of the results showed total repair in 78.46% of the cases and no evidence of repair in 21.54% of the cases. conclusion: repair occurred in the teeth with chronic periapical lesions treated by students of undergraduate dentistry, faculty of dentistry, campus ara£¿atuba - unesp. %K endodontics %K root canal therapy %K chronic periapical lesions %K calcium hydroxide. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1807-25772012000600005&lng=en&nrm=iso&tlng=en