مقارنة مساحة معجون الحشو بين تقنيتي التكثيف الجانبي و التكثيف العمودي بالأمواج المستمرة في ثلاثة مستويات من الأقنية الجذرية للضواحك السفلية

Abstract EN

Background and Objective: The obturation of the whole root canal with inert material and create a complete seal against the liquids is the most important aim of the success root canal treatment.

The aim of this research was to investigate the sealer area ratio in the apical third of obturated canals' cross-sections.

Lateral condensation and continuous wave (system B) techniques were studied.

Methods and Materials: To approach this goal an in vitro study has been performed on 40 single rooted mandibular premolars divided into two groups: Group (1): 20 teeth /prepared in rotary technique (K3) to a size 35\0.06, the canals were obturated with laterl condensation using Guttapercha\ZOE.

Group (1): 20 teeth /prepared in rotary technique (K3) to a size 35\0.06, the canals were obturated with continuous wave (system B) using Guttapercha\ZOE.

Each tooth was horizontally sectioned at 1, 4 and 7 mm from the apical foramen.

And each section was visiualized under the microscope and digitally photographed, and the ratio of sealer area in relation to the canal area was calculated and statistically analyzed.

Results: Within the experimental conditions of the present study, both obturating techniques gave acceptable sealer area ratio but the continuous wave technique (10.98%) was significantly better (P value < 0.05) than lateral condensation (6.81%), regardless of the apical level of sectioning.

Conclusions: This study showed that the continuous wave (system B) was superior tol lateral condensation in terms of the obturation quality because it gave less sealer area ratio.