Corelation between machines assisted endodontic irrigant agitation and apical extrusion of debris and irrigant: a laboratory study.
OBJECTIVE
To compare amount of root canal debris and irrigant extruded apically after irrigants agitation using closed and open chambers.


METHODS
Sixty maxillary central incisors were selected, decoronated, and mounted in preweighed glass vials filled with distilled water. Biomechanical preparation was completed using ProTaper rotary files until number F4 and 1 mL of 3% NaOCl solution after each file use. Samples were randomly divided into closed or open chamber sets which were further subdivided into 6 groups, based on the agitation techniques: no agitation (control), canalBrush, lentulospiral, passive ultrasonic agitation (PUA), EndoActivator, and EndoVac. Canals were irrigated with 1 mL of 17% EDTA and agitated for 30 s and then flushed with 2 mL of distilled water. Apically extruded irrigant was measured and vials were kept in incubator for 5 days at 68 °C for drying for weight calculation. Statistical Analysis. Analysis was done using Student's t-test, one-way ANOVA, and post-hoc.


RESULTS
All agitation techniques showed apical extrusion of the debris and irrigant. The closed chamber apparatus showed significantly less extrusion of debris and irrigant than open chamber (P < 0.05).


CONCLUSIONS
EndoVac was found to be the safest agitation system among all test groups with regard to apical extrusion of debris and irrigant.
Department of Conservative Dentistry and Endodontics, Subharti Dental College, NH-58 Delhi-Haridwar Road, Meerut, Uttar Pradesh 250005, India.
Jatin
J
Gupta
Department of Conservative Dentistry and Endodontics, Subharti Dental College, NH-58 Delhi-Haridwar Road, Meerut, Uttar Pradesh 250005, India.
Vineeta
0000-0003-3954-5676
V
Nikhil
Department of Conservative Dentistry and Endodontics, Subharti Dental College, NH-58 Delhi-Haridwar Road, Meerut, Uttar Pradesh 250005, India.
Padmanabh
P
Jha
D003762:Dental Instruments; D003786:Dental Pulp Cavity / Q000187:drug effects / Q000473:pathology; D006801:Humans; D012388:Root Canal Irrigants / Q000008:administration & dosage*; D007507:Therapeutic Irrigation / Q000295:instrumentation*
D012388:Root Canal Irrigants