Erbium laser ablation of dental hard tissue: Effect of water cooling

Visuri, Steven R.; Walsh, Joseph T.; Wigdor, Harvey A.

doi:10.1002/(sici)1096-9101(1996)18:3<294::aid-lsm11>3.0.co;2-6

Cited by 205 publications

(132 citation statements)

References 20 publications

Supporting

Mentioning

111

Contrasting

Unclassified

Order By: Relevance

“…These findings could be explained by the fact that the heat induced in the tissue by Er:YAG laser was not high due to the relatively low output energy, coupled with the use of a water-cooling spray in Group I 22) . These findings agreed with those of Sasaki et al 18) , whereby it was reported that the infrared spectra of dentin irradiated by Er:YAG laser using an output energy of 40 mJ/pulse were similar to those of nonirradiated dentin.…”

Section: Discussionmentioning

confidence: 97%

Analysis of Er:YAG Lased Dentin Using Attenuated Total Reflectance Fourier Transform Infrared and X-ray Diffraction Techniques

et al. 2007

View full text Add to dashboard Cite

The purpose of this study was to investigate the chemical characteristics of dentin after Er:YAG laser irradiation using various output energies with or without water irrigation. Analysis was carried out by means of attenuated total reflectance Fourier transform infrared spectroscopy (FT-IR/ATR) and X-ray diffraction (XRD). Furthermore, the relative infrared peak intensities of dentin specimens were compared statistically. Results showed that Er:YAG laser with an output energy of 100 mJ/pulse with water irrigation did not cause any detectable change in dentin. However, a higher energy output or the absence of water irrigation affected the organic portion of dentin. With XRD, no obvious phase changes were observed between the XRD pattern of the control (non-irradiated) dentin powder and those after Er:YAG irradiation -regardless of Er:YAG laser output energy or dehydration condition. It was suggested that the intrinsic water content of dentintogether with extrinsic water irrigation -were important factors to achieving the desired outcome of dentin ablation by Er:YAG laser.

show abstract

Section: Discussionmentioning

confidence: 97%

Analysis of Er:YAG Lased Dentin Using Attenuated Total Reflectance Fourier Transform Infrared and X-ray Diffraction Techniques

et al. 2007

View full text Add to dashboard Cite

show abstract

“…The Er:YAG laser effectively ablates dental hard tissues as its energy is well absorbed by both water and hydroxyapatite 1,2) . According to some histological studies, the pulpal response to Er:YAG laser irradiation appears to be similar to the response to high-speed drilling, as thermal damage is reduced by continuous water spray [3][4][5][6] . Following caries removal/cavity preparation by Er:YAG laser, the prepared cavity is generally filled with an adhesive plastic material such as resin composite.…”

Section: Introductionmentioning

confidence: 97%

Tensile Bond Strength of One-step Self-etch Adhesives to Er:YAG Laser-irradiated and Non-irradiated Enamel

et al. 2008

View full text Add to dashboard Cite

This study determined the bond strengths to Er:YAG laser-irradiated and non-irradiated bovine enamel of three one-step self-etch adhesives (AQ Bond Plus (AQP), G-Bond (GB), and Clearfil Tri-S Bond (TS)) and one two-step self-etch adhesive (Clearfil Megabond (MB)). Eighty SiC paper-ground bovine enamel surfaces were used, of which half were laser-irradiated. The enamel surfaces were bonded to a resin composite with each adhesive, and tensile bond strengths were determined after 24 hours. For non-irradiated enamel groups, MB achieved greater bond strength to enamel than GB and TS (p<0.05), but no significant difference was found between MB and AQP (p>0.05). For laser-irradiated enamel groups, no significant differences were found among the four adhesives (p>0.05). Additionally, for each adhesive, no significant differences were found between laser-irradiated and non-irradiated enamel. It was thus concluded that Er: YAG laser irradiation of enamel did not affect the tensile bond strength of one-step and two-step self-etch adhesives.

show abstract

“…The results of early experiments with lasers were not promising because of insufficient ablation efficiency and undesirable side effects such as melting, cracking and charring of enamel and dentin, and pulpal damage caused by overheating [3][4][5][6][7] . However, subsequent advances in laser research have resulted in clinically useful wavelengths, an ability to set the physical and technical parameters, and a provision for water cooling [8][9][10][11] . The wavelength of Er: YAG laser is endowed with the highest absorption in water and has a high affinity for hydroxyapatite 12) .…”

Section: Introductionmentioning

confidence: 99%

Effect of Pulse Duration of Er: YAG Laser on Dentin Ablation

Nishimoto

Otsuki

Yamauti³

et al. 2008

Dent. Mater. J.

View full text Add to dashboard Cite

The present study examined the effects on dentin ablation efficiency arising from various pulse durations of Er: YAG laser at a fixed energy fluence. Ten flat human dentin disks were prepared and exposed to an Er: YAG laser at 1 pps for three seconds at pulse durations of 100 -500 μsec with 150 mJ/pulse (40.0 J/cm 2 •pulse). The depth and diameter of the ablated dentin were measured and the ablation volume was estimated. Irradiated surfaces and cross-sections were observed using a SEM. Depth of the removed dentin increased and the diameter of the spot decreased without a change in the estimated volume at increased pulse durations. SEM observation of the irradiated surfaces revealed that there were no morphological differences when the pulse duration was changed. When the specimens were cross-sectioned, the ablated dentin had a dome shape and there was a dark layer under the irradiated surface.

show abstract

Erbium laser ablation of dental hard tissue: Effect of water cooling

Cited by 205 publications

References 20 publications

Analysis of Er:YAG Lased Dentin Using Attenuated Total Reflectance Fourier Transform Infrared and X-ray Diffraction Techniques

Analysis of Er:YAG Lased Dentin Using Attenuated Total Reflectance Fourier Transform Infrared and X-ray Diffraction Techniques

Tensile Bond Strength of One-step Self-etch Adhesives to Er:YAG Laser-irradiated and Non-irradiated Enamel

Effect of Pulse Duration of Er: YAG Laser on Dentin Ablation

Contact Info

Product

Resources

About