Clinical and radiographic analysis of extrusion of ca lcium hydroxide paste in teeth with periapical lesions

It has been evaluated clinically and radiographically the effect of the extrusion of calcium hydroxide paste in teeth with periapical lesions. Twenty-five patients with teeth showing pulp necrosis and periapical lesions were submitted to endodontic treatment. Dressing calcium hydroxide paste, iodoform and propylene glycol were used. Clinically, the symptoms were evaluated after treatment and, radiographically, the reabsorption of extravasated paste and repair process of the periapical lesion. Only three patients had symptoms severe in the first 24 hours, the paste was completely reabsorbed within 15 days and no interference in the repair process.Avaliou-se, clínica e radiograficamente, o efeito do extravasamento da pasta de hidróxido de cálcio em dentes com lesões periapicais. Vinte e cinco pacientes com dentes exibindo necrose pulpar e lesão periapical foram submetidos a tratamento endodôntico. Como medicação intracanal foi usada pasta de hidróxido de cálcio, iodofórmio e propilenoglicol. Avaliou-se, clinicamente, a sintomatologia após o tratamento e, radiograficamente, a reabsorção da pasta extravasada e o processo de reparo da lesão periapical. Somente três pacientes apresentaram sintomatologia intensa nas primeiras 24 horas, sendo que a pasta foi totalmente reabsorvida em 15 dias e não houve interferência no processo de reparo