Comparison of the effect of Er, Cr-YSGG laser and ultrasonic retrograde root-end cavity preparation on the integrity of root apices

The aim of this study was to compare the effect of Waterlase laser and ultrasonic root end cavity preparation on the integrity of root end in extracted human teeth. The canals of 60 extracted maxillary central incisors were cleaned, shaped, obturated and 3 mm of the root end was resected and examine...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Oral Science 2010, Vol.52(1), pp.77-81
Main Authors: Rahimi, Saeed, Yavari, Hamid R., Shahi, Shahriar, Zand, Vahid, Shakoui, Sahar, Reyhani, Mohammad F., Pirzadeh, Ahmad
Format: Article
Language:English
Subjects:
Aluminum Compounds
Apicoectomy
Calcium Compounds
chipping
Cr-YSGG laser
crack
Dentistry
Drug Combinations
Humans
Incisor
Lasers, Solid-State
Oxides
Retrograde Obturation
Root Canal Filling Materials
Root Canal Preparation - instrumentation
Root Canal Preparation - methods
root-end preparation
Silicates
Tooth Apex - pathology
Tooth Apex - surgery
ultrasonic
Ultrasonics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study was to compare the effect of Waterlase laser and ultrasonic root end cavity preparation on the integrity of root end in extracted human teeth. The canals of 60 extracted maxillary central incisors were cleaned, shaped, obturated and 3 mm of the root end was resected and examined for the presence of any cracks. Class I root-end cavities were then prepared using an ultrasonic unit or Waterlase laser. In the ultrasonic group, KIS 2D tip and medium intensity and in the laser group, 600 μm laser tips and an output power setting of 4 W with 55% water and 65% air were used to prepare the cavity which was studied for the presence of any cracks or chippings. One crack was found in the ultrasonic group, while no cracks were observed in the laser group. There was no significant difference between the two groups (P > 0.05). As for the chipping effect, seven cases (23%) had chipping after cavity preparation in the ultrasonic group but no chipping was found in the specimens of the laser group and the difference was statistically significant (P < 0.05). According to the results of this in vitro study, laser preserves the integrity of root-end cavities better than ultrasonic devices from the standpoint of producing chipping. (J Oral Sci 52, 77-81, 2010)
ISSN:1343-4934
1880-4926
DOI:10.2334/josnusd.52.77