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  • Erbium laser...

Erbium laser ineffective for removing smear layers from mesial roots of mandibular first molars

Written By : Dr. Shravani Dali |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2022-07-13T21:12:27+05:30  |  Updated On 13 July 2022 9:12 PM IST
Erbium laser ineffective for removing smear layers from mesial roots of mandibular first molars
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Erbium laser is a cornerstone in oral surgery and implantology in dentistry. It emits at 2940 nm and is characterized by an active medium consisting of a Yttrium–Aluminium–Garnet (YAG) crystal doped with erbium ions.

Erbium laser is ineffective to remove smear layers from the mesial roots of mandibular first molars according to a recent study published in the Journal of Conservative Dentistry.

The aim of the study is to evaluate erbium laser efficiency in removing the smear layer from mesial roots of mandibular first molars at different laser settings.

One hundred (100) mandibular first molars were selected. Ninety-six (96) mesial roots were assigned to two experimental groups according to the laser wavelength applied: I. Er, Cr: YSGG and II. erbium-doped yttrium aluminium garnet laser system. Four samples were used as the control group. Samples of each group were distributed into two subgroups (A and B), following specific irrigation protocol. Each subgroup was divided into four subcategories according to the applied power laser. Each subcategory consisted of six samples. Teeth were observed under scanning electron microscope. The results were statistically analyzed with Kruskal–Wallis and Mann–Whitney test (SPSS statistics software).

The Results of the study are:

No statistically significant difference was observed between experimental groups I and II. However, a statistically significant difference was found among subgroups IA and IB and IIA and IIB. In every root third, groups IIA and IIB had better outcomes but it was not statistically significant. There was no statistically significant difference between the subcategories of Group I (IA1-4 and IB1-4) and Group II (IIA1-4 and IIB1-4).

Thus, the researchers concluded that the erbium laser with tested parameters did not completely remove the smear layer from the root canals. Chelating factors can contribute to the laser mechanism of smear layer removal from the apical part of narrow and curved root canals.

Reference:

Evrykleia Kourti, Ourania, Papadopoulou-Pantelidou, Kosmas Tolidis, Christos Angelopoulos, Dimitris Strakas. Laser applications in smear layer removal from posterior root canals: A comparative study. 2022.Volume25.Issue3. https://www.jcd.org.in/article.asp?issn=0972-0707;year=2022;volume=25;issue=3;spage=283;epage=287;aulast=Kourti;type=0



Journal of Conservative DentistryErbiumlaserineffectiveremovesmearlayers
Source : Journal of Conservative Dentistry
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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