Search for: [Abstract = "sment of canal curvature using the Schneider scale. • Access opening of the tooth chamber • Measurement of the root canal length • Measurement of the working length. • Root canal cleaning and shaping according to method I or II • Root canal obturation using cold lateral gutta\-percha condensation with AH PLUS sealer. Immediately after the treatment, a control X\-ray was taken to assess root canal obturation and to assign it to the optimal or non\-optimal group. The number and type of endodontic failures were noted as was the time needed for performing the endodontic treatment \(cleaning and shaping\). Both the dentist and the patient subsequently filled in a questionnaire assessing the treatment. A four\-step descriptive scale was used by the dentist to describe the quality of his work. A five\-step descriptive scale was employed by the patient to describe the time of the endodontic treatment and a further five\-stage scale assessed pain levels. The patient was also required to assess how he felt during the treatment according to a ten\-step numerical rating scale. After six months the healing of periapical region was assessed using PAI Index. Both groups were similar in the following respects \: reason for treatment, kind of root canal, degree of root canal curvature and the periapical region status. After six months, the quality of root canal fillings and the healing of the"]

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