SEM investigation of Er:YAG laser apical preparation

Cosmin Bălăbuc; Carmen Todea; Cosmin Locovei; Aurel Răduţă

doi:10.1117/12.2191912

22 March 2016 SEM investigation of Er:YAG laser apical preparation

Cosmin Bălăbuc, Carmen Todea, Cosmin Locovei, Aurel Răduţă

Proceedings Volume 9670, Sixth International Conference on Lasers in Medicine; 96700Q (2016) https://doi.org/10.1117/12.2191912
Event: Sixth International Conference on Lasers in Medicine, 2015, Bucharest, Romania

Abstract

Endodontic surgery involves the incision and flap elevation, the access to the root tip, its resection, the cavity retrograde preparation and filling it with biocompatible material that provides a good seal of the apex[1]. Apicoectomy is compulsory in endodontic surgery. The final stage involves the root retropreparation and the carrying out of the retrograde obturation. In order to perform the retrograde preparation the endodontist can use various tools such as lowspeed conventional handpieces, sonic and ultrasonic equipment. The ideal depth of the preparation should be 3 mm, exceeding this value may affect the long-term success of the obturation [2]. Resection at the depth of 3 mm reduces apical ramifications by 98% and lateral root canals by 93%. The ultrasonic retropreparation has numerous advantages compared to the dental drill. Firstly, the cavity will be in the axis of the tooth which implies a minimum destruction of the root canal morphology. The preparations are precise, and the cutting pattern is perpendicular to the long axis of the root, the advantage being the reduction in the number of dentinal tubules exposed at the resected area [3]. Therefore, the retrograde filling is the procedure when an inert and non-toxic material is compacted in the apically created cavity.[4,5]. The Er:YAG laser is the most common wavelength indicated for dental hard tissue preparation. Its natural selectivity offers a significant advantage compared to the conventional hard tissue preparation [6-9].The purpose of this in vitro study was to investigate the quality of Er:YAG laser apical third preparation using Scanning Electron Microscopy (SEM), in comparison with the conventional ultrasonic method.

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Cosmin Bălăbuc, Carmen Todea, Cosmin Locovei, and Aurel Răduţă "SEM investigation of Er:YAG laser apical preparation", Proc. SPIE 9670, Sixth International Conference on Lasers in Medicine, 96700Q (22 March 2016); https://doi.org/10.1117/12.2191912

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KEYWORDS

Er:YAG lasers

Scanning electron microscopy

Ultrasonics

Teeth

Cements

Tissues

Laser cutting

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