Effect of passive ultrasonic agitation during final irrigation on cleaning capacity of hybrid instrumentation
Restorative Dentistry & Endodontics
;
: 104-108, 2014.
Article
in English
| WPRIM
| ID: wpr-155544
ABSTRACT
OBJECTIVES:
To evaluate the effect of passive ultrasonic agitation on the cleaning capacity of a hybrid instrumentation technique. MATERIALS ANDMETHODS:
Twenty mandibular incisors with mesiodistal-flattened root shape had their crowns sectioned at 1 mm from the cementoenamel junction. Instrumentation was initiated by catheterization with K-type files (Denstply Maillefer) #10, #15, and #20 at 3 mm from the working length. Cervical preparation was performed with Largo bur #1 (Dentsply Maillefer) followed by apical instrumentation with K-type files #15, #20 and #25, and finishing with ProTaper F2 file (Denstply Maillefer). All files were used up to the working length under irrigation with 1 mL of 2.5% sodium hypochlorite (Biodynamica) at each instrument change. At the end of instrumentation, the roots were randomly separated into 2 groups (n = 10). All specimens received final irrigation with 1 mL of 2.5% sodium hypochlorite. The solution remained in the root canals in Group 1 for one minute; and ultrasonic agitation was performed in Group 2 for one minute using a straight tip inserted at 1 mm from working length. The specimens were processed histologically and the sections were analyzed under optic microscope (x64) to quantify debris present in the root canal.RESULTS:
The samples submitted to ultrasonic agitation (Group 2) presented significant decrease in the amount of debris in comparison with those of Group 1 (p < 0.05).CONCLUSIONS:
The hybrid instrumentation technique associated with passive ultrasonic agitation promoted greater debris removal in the apical third of the root canals.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Sodium Hypochlorite
/
Ultrasonics
/
Catheterization
/
Tooth Cervix
/
Crowns
/
Dental Pulp Cavity
/
Dihydroergotamine
/
Catheters
/
Incisor
Language:
English
Journal:
Restorative Dentistry & Endodontics
Year:
2014
Type:
Article
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