Thermal, morphological, and spectral changes after Er, Cr:<scp>YSGG</scp> laser irradiation at low fluences on primary teeth for caries prevention

Almaz, Merve Erkmen; Ulusoy, Nur Burcu; Oba, Aylin Akbay; Erdem, Ümit; Doğan, Mustafa

doi:10.1002/jemt.23637

Cited by 7 publications

(10 citation statements)

References 51 publications

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“…Erkmen Almaz et al [51] argue that the Er,Cr:YSGG laser irradiation may influence the prevention of teeth enamel demineralization considering the increase in the temperature. Alkhudhairy et al [52] emphasized that the Er,Cr:YSGG laser may remove minimal material and cause potential thermomechanical damage by ablation, but the increased temperature may eliminate free radicals and improve the bond strength of the enamel.…”

Section: Resultsmentioning

confidence: 99%

Structural changes in the crystal lattice in enamel under Er,Cr:YSGG laser irradiation and oven heated by Rietveld analysis

Rabelo Neto,

da Ana,

Mazzocchi

et al. 2023

Laser Phys.

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Changes in the crystal lattices and compositions of the dental enamel powders were evaluated after oven or Er,Cr:YSGG laser irradiation. A decrease in the Ca/P ratio to levels close to the ideal theoretical value of laser irradiation caused a considerable decrease in the hydroxyapatite crystallite size but without changes in the crystallographic phase. These changes alter the material, can affect the demineralization process, and are useful for the prevention of caries and dental erosion.

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Section: Resultsmentioning

confidence: 99%

Structural changes in the crystal lattice in enamel under Er,Cr:YSGG laser irradiation and oven heated by Rietveld analysis

Rabelo Neto,

da Ana,

Mazzocchi

et al. 2023

Laser Phys.

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“…Although water functions as a cooler when operating lasers for protecting the tooth and the adjacent tissues from thermal, the presence of water when the laser interacts with the dental hard tissues is an essential factor that promotes ablation ( 25 ). But many other studies used the air/water cooling parameters to keep the temperature from rising too much above the ablation threshold or damaging the pulpal tissue ( 26 , 27 ).…”

Section: Discussionmentioning

confidence: 99%

Preventive effect of combined Er, Cr: YSGG and fluoride gel on acid resistance of the permanent tooth enamel: An in vitro study

Abdulhussein¹,

Haidar²

2023

J Clin Exp Dent

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Background Increasing the resistance of enamel to acids may prevent dental erosion and diminish microhardness alterations in the enamel. This study aimed to evaluate the preventive effect of erbium, chromium: yttrium, scandium, gallium, and garnet laser combined with 1.23% acidulated phosphate fluoride gel on enamel resistance to demineralization. Material and Methods Thirty-four human maxillary first premolars were randomly assigned to three groups. Group I (control group), group II were treated with fluoride gel for 4-minutes and group III received ten seconds of laser treatment; then fluoride has applied. Each sample was immersed in a soft drink for 2 minutes, then washed and kept in deionized water. Four consecutive cycles were carried out at 6 hours intervals. The effects were studied utilizing the Vickers microhardness test and scanning electron microscopy. Data analyses were performed by Levene test and General Linear Model Repeated Measure Factorial ANOVA with Bonferonni post hoc test, the accepted level of significance was 0.05. Results Microhardness was increased statistically in groups II and III after treatment, with the highest value for group III. After demineralization, the control group had the lowest microhardness score, followed by group II and group III, which showed the least reduction in microhardness with a statistical significance ( p <0.05). There was a correlation between the morphological alterations in enamel surfaces and the increased enamel resistance. Conclusions Both fluoride and the combined laser fluoride treatment had an advantage in protecting the enamel and increasing enamel resistance to acids, with a more significant benefit for the combined laser fluoride group. Key words: Prevention, Er, Cr: YSGG, enamel demineralization, fluoride, microhardness.

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“…However, these alternations of the irradiated enamel surface should be minimal if adequate water cooling is used. 19,20 Dental lasers interact with water and hydroxyapatite, which both play a major role in bonding interactions with hard dental tissues. 21 Increasing the temperature during Er,Cr:YSGG laser irradiation may affect the quantity of carbonate and hydroxyl groups in enamel.…”

Section: Discussionmentioning

confidence: 99%

Effect of Erbium, Chromium-doped: Yttrium, Scandium, Gallium and Garnet Laser Tooth Preparation on Gap Formation of Universal Adhesive Bonded to Enamel and Dentin: A Micro-CT and SEM Study

AlQussier

Awliya

2022

J Lasers Med Sci

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Introduction: The presence of gaps at the bonding interface of resin composite restorations is known to have an impact on restoration longevity. This study aimed to evaluate the effect of erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er, Cr:YSGG) laser irradiation on gap formation at the tooth–resin interface and to compare the reliability of micro-computed tomography (µCT) and scanning electron microscopy (SEM) scans for gap formation assessment. Methods: Thirty standardized non-retentive class V cavities were prepared on sound human premolars using either an Er,Cr:YSGG laser or a round carbide bur (n=15 for each). A universal adhesive and A nano-filled resin composite were applied in accordance with the manufacturer’s recommendations. After water storage for 24 hours at 37°C, the teeth were subjected to thermocycling. Gap formation assessments were performed by µCT (Skyscan 1173 µCT, Brucker, Belgium) and SEM (JEOL JSM-6610LV, Japan), and SPSS version 24.0 (IBM Inc., Chicago, USA) was used to analyze the data at P value<0.05. Descriptive statistics were used to describe the gap formation percentages. To compare the impact of both preparation and assessment methods, a non-parametric Mann–Whitney U test was used. Results: In enamel, similar gap formation values were detected for the two preparation methods (bur and laser). However, the laser-prepared group showed higher gap formation values in dentin. Additionally, higher gap formation values were reported for both preparation methods when µCT was used for assessment. Conclusion: Cavity preparation using a Waterlase laser led to higher gap formation percentages at the dentin–resin interface. In addition, SEM assessment is more reliable for assessing the tooth–resin interface.

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Thermal, morphological, and spectral changes after Er, Cr:YSGG laser irradiation at low fluences on primary teeth for caries prevention

Cited by 7 publications

References 51 publications

Structural changes in the crystal lattice in enamel under Er,Cr:YSGG laser irradiation and oven heated by Rietveld analysis

Structural changes in the crystal lattice in enamel under Er,Cr:YSGG laser irradiation and oven heated by Rietveld analysis

Preventive effect of combined Er, Cr: YSGG and fluoride gel on acid resistance of the permanent tooth enamel: An in vitro study

Effect of Erbium, Chromium-doped: Yttrium, Scandium, Gallium and Garnet Laser Tooth Preparation on Gap Formation of Universal Adhesive Bonded to Enamel and Dentin: A Micro-CT and SEM Study

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