Effect of duration of Er,Cr:YSGG laser etching on dentin morphology: an in vitro study

Mahdisiar, Farnaz; Mirzaei, Alireza; Fallah, Alireza; Gutknecht, Norbert; Akhoundan, saeedeh

doi:10.1007/s41547-018-0038-z

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…The effect of Er,Cr:YSGG laser debonding on the re-bond strength of the materials used showed that there was a significant difference in re-bond SBS for both ceramic materials lithium disilicate and ultratranslucent zirconia, re-bond strength mean values were 1.12 ± 0.05 MPa for IPS e.max CAD and 4.08 ± 1.88 MPa for the BruxZir group, and there was statistical difference between the two re-bond groups. By comparing the SBS results of bond groups and re-bond groups, lithium This significant decrease in re-bond strength under the limitation of this study may be due to changes in dentin surface after Er,Cr:YSGG laser application for debonding ceramic samples, as smear layer presence affected by laser time application as mentioned by Mahdisiar et al [27], and structural changes in dentinal tubules found by Wang et al [28], where the surface morphology of the dentin changed after Er:YAG laser pre-treatment with different energy and frequency values. The dentinal tubules opened within a specific energy (50-200 mJ) and frequency (5-20 Hz) range.…”

Section: Discussionmentioning

confidence: 67%

“…This significant decrease in re-bond strength under the limitation of this study may be due to changes in dentin surface after Er,Cr:YSGG laser application for debonding ceramic samples, as smear layer presence affected by laser time application as mentioned by Mahdisiar et al [ 27 ], and structural changes in dentinal tubules found by Wang et al [ 28 ], where the surface morphology of the dentin changed after Er:YAG laser pre-treatment with different energy and frequency values. The dentinal tubules opened within a specific energy (50–200 mJ) and frequency (5–20 Hz) range.…”

Section: Discussionmentioning

confidence: 78%

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The effect of Er, Cr:YSGG laser debonding on the bond strength of two ceramic materials to dentin

2023

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Objectives Evaluating the bond strength of two ceramic materials to dentin after Er,Cr:YSGG laser debonding. Would laser debonding affect the bond strength of ceramic to dentin? Materials and methods Recently extracted human molars were ground to expose dentin. Forty square shaped samples were prepared from CAD/CAM ceramic blocks. Samples were divided into two groups according to the type of ceramic material; group E: Lithium disilicate and group T: Ultra-translucent Zirconia (n = 20) Each group was divided into two subgroups (n = 10) according to the laser debonding effect (subgroup B: bonded samples, subgroup R: re-bonded samples after laser debonding). Ceramic samples were bonded to dentin using dual cure self-adhesive resin cement. Laser debonding of ceramic samples of subgroups R using Er, Cr:YSGG laser, were then re-bonded again to dentin surface with same resin cement. The Shear bond strength test using Universal testing machine was done. The failure mode was analyzed. Two-way analysis of variance was used to compare the mean bond strength and re-bond strength of two materials. The significance level was set at P ≤ 0.05. Results Two-Way ANOVA showed that ceramic type had a significant effect on the re-bond strength to dentin. The predominant failure mode was adhesive. Conclusions Laser debonding of Lithium disilicate and Ultra translucent Zirconia decreased the re-bond strength to dentin. Deterioration in re-bond strength for Lithium disilicate ceramics was more pronounced than for Ultra translucent Zirconia. Clinical Relevance Deterioration in the bond strength between ceramics & dentin after laser debonding still needs improvement to allow its clinical use.

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Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 78%

The effect of Er, Cr:YSGG laser debonding on the bond strength of two ceramic materials to dentin

2023

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In vitro effect of Er,Cr:YSGG laser on microtensile bond strength of composite resin to dentin using two different bonding systems

Mahdisiar

Nemati

Mirzaei³

et al. 2021

Laser Dent Sci

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A Study of the Effects of Medical Dental Laser and Diamond Drill on Dentin Tissue during Dental Restoration Based on Spectral Imaging and Multivariate Analysis of Synchrotron FTIR Microspectroscopy Data

Seredin,

Goloshchapov,

Buylov

et al. 2023

Photonics

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In our work, the effect of a dental Er:YAG pulsed laser and a diamond cylindrical drill with a turbine handpiece on dentin tissue was studied using spectral imaging. The combination of spectral imaging of FTIR microspectroscopy data and subsequent multivariate analysis (hierarchical cluster analysis (HCA) and principal component analysis (PCA)) was shown to unambiguously detect visually indistinguishable structural changes occurring in the hard dental tissue (dentin) depending on the method used for their pre-processing, and to classify and differentiate the identified features at the submicron level with high spatial resolution. The detectable spectral transformations indicate that the preparation of dental tissue with a dental laser leads to significant changes in the organic components of dentin, which may affect adhesion. The use of a diamond cylindrical drill with a turbine handpiece is characterized by a larger area (depth) of the altered hard tissue than in the case of a dental laser for dental cavity preparation. The observed redistribution of the phase composition of the inorganic component in the tissue is associated with the emergence of additional phases of weak calcium phosphates, and changes in the organic component with transformations in the secondary structure of proteins. Active use of the proposed integrated approach in the future will clarify the areas of its applicability to the analysis of biological tissues and pathologies in them, which will help in the clinical setting to choose the optimal personalized approach for patients.

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Effect of duration of Er,Cr:YSGG laser etching on dentin morphology: an in vitro study

Cited by 3 publications

References 17 publications

The effect of Er, Cr:YSGG laser debonding on the bond strength of two ceramic materials to dentin

The effect of Er, Cr:YSGG laser debonding on the bond strength of two ceramic materials to dentin

In vitro effect of Er,Cr:YSGG laser on microtensile bond strength of composite resin to dentin using two different bonding systems

A Study of the Effects of Medical Dental Laser and Diamond Drill on Dentin Tissue during Dental Restoration Based on Spectral Imaging and Multivariate Analysis of Synchrotron FTIR Microspectroscopy Data

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