Thermographical and Morphological Studies of Er,Cr:YSGG Laser Irradiation on Root Canal Walls

Ishizaki, Nelson Tatsunari; Matsumoto, Koukichi; Kimura, Yuichi; Wang, Xiaogu; Kinoshita, Jun-Ichiro; Okano, Sheila Mayumi; Jayawardena, Jayanetti Asiri

doi:10.1089/1549541041797814

Cited by 17 publications

(23 citation statements)

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“…The Er,Cr:YSGG laser has been used widely in endodontic therapy due to their microbial reduction potential [12][13][14][15][16]3,17 . This laser has capacity of ablate enamel and dentin by the high absorption in water and also strong absorption by the hydroxyl radicals present in the hydroxyapatite structure 12,18 .…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, it can create precise hard tissue cuts through the interaction of laser energy with atomized water droplets on the tissue interface resulting in the ablation of the tissue 19,16,17 . Most of smear layer and debris on root canal walls is removed by Er,Cr:YSGG laser, and dentinal tubules were patent 18,13 . The smear layer is composed of cut tooth structure and some nonspecific inorganic contaminants 13,11 .…”

Section: Discussionmentioning

confidence: 99%

“…Most of smear layer and debris on root canal walls is removed by Er,Cr:YSGG laser, and dentinal tubules were patent 18,13 . The smear layer is composed of cut tooth structure and some nonspecific inorganic contaminants 13,11 . Different irrigant solutions have been used in order to remove smear layer partially, such as NaOCl and EDTA [20][21][22] .…”

Section: Discussionmentioning

confidence: 99%

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Influence of Er,Cr: YSGG laser on bond strength of self-adhesive resin cement

et al. 2012

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0.05) among the groups G1a (25.44 ± 2.35) and G1b (23.62 ± 3.48), G2a (11.77 ± 2.67) and G2b (9.93 ± 3.37). Fractures were observed at the interface between the dentin and the resin in all groups. The Er,Cr:YSGG laser irradiation did not influence on the bond strength of the resin cements and the etch-and-rinse resin cement had better results on bond strength than self-adhesive resin cement.]]>

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Influence of Er,Cr: YSGG laser on bond strength of self-adhesive resin cement

et al. 2012

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“…This condition can be achieved by dentin irradiation with Er;Cr:YSGG laser, which results in debris and smear layer removal. When laser is associated with a water coolant, no carbonization, melting or considerable temperature increase is observed (14,15).…”

Section: Introductionmentioning

confidence: 99%

Sealer penetration and marginal permeability after apicoectomy varying retrocavity preparation and retrofilling material

Winik¹,

Araki

Negrão³

et al. 2006

Braz. Dent. J.

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Apicoectomy failure is generally related to inappropriate marginal sealing of the retrocavity, which allows percolation of microorganisms and their products from root canal system to periapex. This study evaluated tubular penetration of canal sealers and marginal permeability after retrocavity irradiation with Er;Cr:YSGG laser and retrofilling with MTA or cyanoacrylate. Twenty-two singlerooted teeth were decoronated and endodontically treated, their apical 3 mm were resected and the root ends were retroprepared with a low-speed bur. Twenty roots were randomly assigned to 4 groups (n=5): GI and GII -retrofilling with MTA and cyanoacrylate, respectively; GIII and GIV -retrocavity irradiation with Er;Cr:YSGG laser (2.78 μm, 4 W, 20 Hz, 70.8 J/cm 2 ) and retrofilling with MTA and cyanoacrylate, respectively. The remaining 2 roots served as positive and negative controls. The analysis of rhodamine B dye infiltration (p=0.05) demonstrated that laser irradiation and MTA retrofilling presented significantly higher permeability rates (p<0.05). Retrofilling with cyanoacrylate showed significantly lower permeability, either when laser was used or not on retrocavity. SEM analysis depicted more cyanoacrylate penetration through dentinal tubules when compared to MTA, suggesting a more efficient marginal sealing. Based on these results, it may be concluded that cyanoacrylate provided a less permeable retrofilling regardless of the retropreparation method, suggesting a more favorable condition to the establishment of the periapical healing.

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“…Quando a refrigeração não foi utilizada, notaram-se carbonizações e fusões nas superfícies de esmalte e dentina, sendo que a superfície dentinária mostrou-se com aspecto de lava derretida e com aparência de bolhas, margens e paredes cavitárias irregulares com a presença de várias microfendas. Estes resultados sugerem que a utilização do spray de água no momento da irradiação pode prevenir danos térmicos nos tecidos duros dentais (HOSSAIN et al, 1999;HOSSAIN et al, 2002aHOSSAIN et al, , 2002bISHIZAKI et al, 2004;KIMURA et al, 2001;YU et al, 2000). Os parâmetros indicados pelo fabricante para preparo cavitário e remoção de cárie em dentina, variam de 3 a 4,5 W, com refrigeração ajustada em 70-86 % de água e 60-100 % de ar.…”

Section: Microinfltração Marginalunclassified

Análise do selamento marginal de restaurações realizadas após remoção de cárie radicular com o laser de Er, Cr:YSGG

Martins¹

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Thermographical and Morphological Studies of Er,Cr:YSGG Laser Irradiation on Root Canal Walls

Cited by 17 publications

References 0 publications

Influence of Er,Cr: YSGG laser on bond strength of self-adhesive resin cement

Influence of Er,Cr: YSGG laser on bond strength of self-adhesive resin cement

Sealer penetration and marginal permeability after apicoectomy varying retrocavity preparation and retrofilling material

Análise do selamento marginal de restaurações realizadas após remoção de cárie radicular com o laser de Er, Cr:YSGG

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