title: A new non-instrumental technique for cleaning and filling root canals.
abstract: The aim of this in vitro study was to test the ability of a novel non-instrumental technique to prepare and obturate root canals. Cleaning of the root canal system was achieved with a device which was able to develop, under reduced pressure, controlled cavitation. The same device was used for proper drying and subsequent obturation of the root canal system. A total of 55 freshly extracted molars with 120 canals were treated either by the step-back technique and lateral condensation of gutta-percha and AH26 as a sealer or by the new device. The teeth were then sectioned horizontal to the long axis of the root canal and examined by light microscopy. The cross-sectional area, area with residual pulpal tissue and voids were assessed morphometrically. Overall, the treatment with the new device resulted in similar cleanliness and obturation quality when compared with the control group. Total treatment time using the new non-instrumental technique, however, was less than half of that using hand instrumentation.
authors.affiliation: Department of Operative, Preventive and Paediatric Dentistry, University of Bern, School of Dental Medicine, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Lussi
authors.forename: L
authors.initials: L
authors.lastname: Messerli
authors.forename: P
authors.initials: P
authors.lastname: Hotz
authors.forename: J
authors.initials: J
authors.lastname: Grosrey
mesh_terms: D000704:Analysis of Variance; D016009:Chi-Square Distribution; D005069:Evaluation Studies as Topic; D006801:Humans; D006874:Hydrostatic Pressure; D012388:Root Canal Irrigants / Q000627:therapeutic use*; D012389:Root Canal Obturation / Q000379:methods*; D012390:Root Canal Therapy / Q000295:instrumentation* / Q000379:methods*; D013997:Time Factors
chemical_list: D012388:Root Canal Irrigants