[Investigation of the microbiological variations at the empty root canals after retrograde histoacryl filling that is made with pulpectomy at the same time].

Many researchers defended the thesis of eradicating the apical foramen microleakage for a successful root canal treatment. This study has been designed to defect whether microorganisms will grow or not at the empty root canals as a result of the perfect obstruction of the apical foramen with histoacryl of least microleakage retrogradely. The study has been realized on 24 teeth of 6 adult dogs. Histoacryl was used to obstruct the apical foramens and the experimental animals were anesthetized with general anesthesia. Experimental animals were divided into three groups before the operation. At each group, eight teeth of two experimental animals were studied on. Consequently, a great amount of streptococcus kind, lactobacillus and staphylococcus were isolated at the cultures taken from the root canals of 15 days cases. At 30 day cases, peptostreptococus, lacto bacillus and staphylococcus were isolated while at 60 day cases streptococcus pneumonia, and lactobacillus were isolated and evaluated as meaningless.