Aim:To evaluate the effect of different irrigating solutions on postspace treatments on the push-out bond strength of glass fiber posts.Materials and Methods:Thirty mandibular premolar roots were decoronated and endodontically treated. Postspaces were prepared and roots were divided into three groups: In group 1: 2.5% sodium hypochlorite irrigation (control), group 2: 17% ethylenediaminetetraacetic acid (EDTA) with hand activation, group 3: 17% EDTA irrigation with photon-induced photoacoustic streaming (PIPS) has been done to the postspaces. Scanning electron microscope (SEM) analysis has been made for two samples of each group. Fiber posts were then luted with resin cement. Each root was prepared for push-out test. Data have been statistically analyzed.Results:SEM results showed clean postwalls with both group 2 and group 3, whereas group 1 showed adhesion of resin cement to intraradicular dentine. When all groups were compared, the bond strength values are higher with group 2 followed by group 3.Conclusion:Within the limitations of the study, clean postwalls and the highest bond strength values were obtained from 17% EDTA with hand activation and 17% EDTA with PIPS.
Aim
To study the effect of 17% EDTA with PIPS on dentinal surfaces of pediatric, adolescent and geriatric teeth using scanning electron microscope (SEM).
Background data
The debriding ability of an Er:YAG laser system equipped with a new tapered and stripped tip of 400 micron diameter and auxiliary irrigating solutions after mechanical preparation.
Materials and methods
For each group, 20 single rooted human mandibular premolars were selected. The groups were categorized as group 1 pediatric, group 2 adolescent and group 3 geriatric. These groups were further divided as subgroup A (control)—saline and subgroup B—EDTA and PIPS. Access opening was done for all the samples and respective irrigation protocol was followed. The samples were then sectioned and observed under SEM.
Results
The observational study shows that the efficacy of smear layer removal was better in the pediatrics group followed by adolescent and geriatric groups.
Conclusion
The PIPS technique resulted in effective debriding and decontamination of the root canal system in all the three types of dentin.
How to cite this article
Hegde V, Vangala A, Jain P, Srilatha S, Dixit V. The Effect of PIPS on Three Different Types of Dentin: A Surface Observational Study. World J Dent 2015;6(1):5-9.
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