Holland R, Otoboni Filho J A, Bernabé P F, de Souza V, Nery M J
Department of Endodontics, Faculty of Dentistry of Araçatuba, UNESP, Brasil.
Endod Dent Traumatol. 1993 Feb;9(1):8-12. doi: 10.1111/j.1600-9657.1993.tb00453.x.
Dogs' teeth with infected root canals, were submitted to apicoectomy and the root canals were filled flush or 2 mm short. In a third group the canals were left unfilled and only the access openings were closed. One hundred and eighty days after the treatment, the animals were killed and the specimens prepared for histological analysis. Repair was not observed in the teeth with unfilled root canals. The healing observed in the teeth with root canals filled flush was less complete than the healing observed when the root canals were filled 2 mm short.
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