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J Indian Soc Pedod Prev Dent. 2019 Jul-Sep;37(3):271-274. doi: 10.4103/JISPPD.JISPPD_113_19.

Scanning electron microscopic observation of primary tooth dentin following final irrigation with 95% ethanol: An in vitro study.

Author information

1
Department of Pediatric and Preventive Dentistry, Nair Hospital Dental College, Mumbai, Maharashtra, India.
2
Department of Pediatric and Preventive Dentistry, Government Dental College and Hospital, Mumbai, Maharashtra, India.
3
Department of Pediatric and Preventive Dentistry, Nair Hospital Dental College, Mumbai,Maharashtra, India.
4
Department of Pediatric and Preventive Dentistry, Saraswati Dhanwantari Dental College and Hospital, Parbhani, Maharashtra, India.
5
Department of Conservative Dentistry and Endodontics, Nair Hospital Dental College, Mumbai, Maharashtra, India.

Abstract

Background:

The beneficial effects of irrigants during endodontic treatment are well known; however, it may have some deleterious effects on the internal root canal wall, thereby altering its physical properties.

Aim:

The purpose of the study was to assess the effect of 95% ethanol on morphological characteristics of primary root dentin.

Materials and Methods:

Biomechanical preparation was done in twenty extracted single-rooted primary anterior teeth using Rotary ProTaper Universal System. Samples were divided into two groups based on the final irrigation protocol: nonalcohol group (NAG) and alcohol group (AG). 3% sodium hypochlorite and 17% ethylenediaminetetraacetic acid were used for irrigation in both the groups, whereas 95% ethanol was used as a final irrigant in AG. After the treatment, these teeth were longitudinally sectioned and studied under the scanning electron microscope (SEM).

Results:

SEM observation of NAG showed scattered debris with unaffected morphology of dentinal tubules (DT). In AG, DT showed severe erosion with the loss of peritubular and intertubular dentin.

Conclusion:

A final rinse with 95% ethanol can change the morphology of the internal root surface and aid in smear layer removal in primary teeth.

KEYWORDS:

Dentinal erosion; endodontic irrigation; ethanol; intertubular dentin; primary teeth

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