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CC BY-NC-ND 4.0 · Eur J Dent 2008; 02(03): 198-203
DOI: 10.1055/s-0039-1697378
Original Article
Dental Investigation Society

Effect of Passive Ultrasonic Irrigation on Apical Extrusion of Irrigating Solution

Tamer Tasdemir
a   Department of Endodontics, School of Dentistry, Karadeniz Technical University, Trabzon, Turkey
,
Kursat Er
a   Department of Endodontics, School of Dentistry, Karadeniz Technical University, Trabzon, Turkey
,
Davut Celik
a   Department of Endodontics, School of Dentistry, Karadeniz Technical University, Trabzon, Turkey
,
Tahsin Yildirim
b   Department of Restorative Dentistry, School of Dentistry, Karadeniz Technical University, Trabzon, Turkey
› Author Affiliations
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Publication History

Publication Date:
27 September 2019 (online)

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ABSTRACT

Objectives: To determine the influence of passive ultrasonic irrigation (PUI) on apical extrusion of irrigating solution.

Methods: Twenty freshly extracted maxillary and mandibular incisors with single straight root canals were instrumented with ProTaper rotary files. During final irrigation, the root canals were filled with 2.5% sodium hypochlorite (NaOCl) solution and PUI was performed with a piezoelectronic unit. A stainless steel instrument (size 15) was inserted into the root canal and the irrigant was ultrasonically activated for one minute. This sequence was repeated three times, resultingin a total PUI time of three minutes. The volume of extruded irrigant was measured by Pipetman pipettes. The data were statistically analyzed with the Mann-Whitney U test.

Results: The mean volume of apical extruded irrigant was 2.15 �L for the PUI group and 14 �L forthe control group. The experimentalgroup extruded significantly smaller amounts of irrigant than the control group (P<.05).

Conclusions: The PUI procedure as a final irrigation was associated with less apical extrusion of the irrigating solution. (Eur J Dent 2008;2:198-203)

Key Words:

Apical extrusion - Passive - Ultrasonic - Irrigation
 

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