Chemical Changes Associated with Increased Acid Resistance of Er:YAG Laser Irradiated Enamel

Díaz-Monroy, Jennifer Manuela; Contreras‐Bulnes, Rosalía; Olea-Mejía, Oscar; García-Fábila, María Magdalena; Rodríguez‐Vilchis, Laura Emma; Sánchez-Flores, Ignacio; Centeno-Pedraza, Claudia

doi:10.1155/2014/501357

Cited by 14 publications

(24 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similarly, mineralizing agents were used in the remineralization solution. These methods were used to efficiently identify calcium and phosphorus and indirectly study the mineral components on dental surfaces [16,[18][19][20].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The Effects of Remineralization via Fluoride Versus Low-Level Laser IR810 and Fluoride Agents on the Mineralization and Microhardness of Bovine Dental Enamel

et al. 2018

View full text Add to dashboard Cite

Abstract:The objective of this study was to assess the mineralization and microhardness of bovine dental enamel surfaces treated with fluoride, tri-calcium phosphate, and infrared (IR) 810 laser irradiation. The study used 210 bovine incisors, which were divided into six groups (n = 35 in each): Group A: Untreated (control), Group B: Fluoride (Durapath-Colgate), Group C: Fluoride+Tri-calcium phosphate (Clin-Pro White-3 M), Group D: Laser IR 810 (Quantum), Group E: Fluoride+laser, and Group F: Fluoride+tri-calcium phosphate+laser). Mineralization was measured via UV-Vis spectroscopy for phosphorus and via atomic absorption spectroscopy for calcium upon demineralization and remineralization with proven agents. Microhardness (SMH) was measured after enamel remineralization. Mineral loss data showed differences between the groups before and after the mineralizing agents were placed (p < 0.05). Fluoride presented the highest remineralization tendency for both calcium and phosphate, with a Vickers microhardness of 329.8 HV0.1/11 (p < 0.05). It was observed that, if remineralization solution contained fewer minerals, the microhardness surface values were higher (r = −0.268 and −0.208; p < 0.05). This study shows that fluoride has a remineralizing effect compared with calcium triphosphate and laser IR810. This in vitro study imitated the application of different remineralizing agents and showed which one was the most efficient for treating non-cavitated injuries. This can prevent the progression of lesions in patients with white spot lesions.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Bovine enamel was used as a model for human teeth. This model offers a large surface area and more uniform enamel thickness; previous studies have shown that they are very similar to human teeth [15][16][17].…”

Section: Introductionmentioning

confidence: 95%

The Effects of Remineralization via Fluoride Versus Low-Level Laser IR810 and Fluoride Agents on the Mineralization and Microhardness of Bovine Dental Enamel

et al. 2018

View full text Add to dashboard Cite

show abstract

“…There are limited reports regarding the element content in the same area of dental enamel during consecutive experimental phases (before and after treatment under several preventive protocols) [18,25]. Such analyses would allow for the objective measurement of the chemical changes that occur.…”

Section: Discussionmentioning

confidence: 99%

“…The distance between the tip and the sample was 1 mm, which was ensured by using a sheet of stainless steel (23 mm × 5 mm × 0 5 mm) that was fixed to the top of the laser handpiece. At this tip-sample distance, the exit tip and the laser beam had the same diameter, which was confirmed by a laminated infrared sensor screen (Lumitek International Inc., Ijamsville, MD, USA) [18,25,27,28]. Each sample was irradiated only once for 20 sec.…”

Section: Er:yag Lasermentioning

confidence: 94%

See 1 more Smart Citation

Chemical Changes of Enamel Produced by Sodium Fluoride, Hydroxyapatite, Er:YAG Laser, and Combined Treatments

Ceballos-Jiménez

Rodríguez‐Vilchis

Contreras‐Bulnes

et al. 2018

Journal of Spectroscopy

Self Cite

View full text Add to dashboard Cite

Occlusal pits and fissures of permanent molars are considered to have higher risk of developing caries. Enamel demineralization can be prevented by applying remineralizing agents, and their absorption increases with prior irradiation. This work evaluates the chemical changes produced by treating occlusal surfaces with sodium fluoride (NaF), hydroxyapatite-NaF-xylitol (HA-NaF-X), Er:YAG laser irradiation (L), and combinations thereof. Fifty enamel samples were randomly assigned to five groups (n = 10): NaF, HA-NaF-X, L, L + NaF, and L + HA-NaF-X. The chemical composition of human enamel was evaluated before (BT) and after (AT) treatment using energy-dispersive X-ray spectroscopy (EDS) and expressed in atomic percentages (at%). For combined treatment groups, the products were applied after laser irradiation. The statistical analyses included a paired t-test and ANOVA (p ≤ 0 05). After treatment, a significant increase in F at% was observed in the NaF group (2.71 ± 1.41). The irradiated groups showed significant increases in Ca and P at% and the Ca/P ratio. The highest values occurred for L + NaF (30.44 ± 4.28 Ca at%, 11.97 ± 1.45 P at%, and 2.55 ± 0.22 Ca/P ratio). Er:YAG laser irradiation alone or in combined protocols increased the Ca and P content of dental enamel, in vitro.

show abstract

Effect of 2.94 µm Er: YAG laser on the chemical composition of hard tissues

Aljdaimi

Devlin

Dickinson

et al. 2018

Microscopy Res & Technique

View full text Add to dashboard Cite

The aim was to investigate the effect of the Er-YAG laser radiation on morphology and chemical composition of enamel, dentin, and bone. The specimens of the three groups were irradiated with a very long pulse mode (VLP) of 2.94 µm Er-YAG laser with 100 mJ pulse energy and energy density of 8.42 J/ for 30 s, at a repetition rate of 15 Hz. The organic and inorganic content of the samples were investigated by Fourier Transforms Infrared spectroscopy (FTIR). The morphological characteristics were investigated with scanning electron microscopy (SEM) and elemental analysis (calcium and phosphorus) with energy-dispersive X-ray spectroscopy (EDX). FTIR data were analyzed with a One-Way ANCOVA test and EDX data with the independent sample t-test. Following the laser radiation, FTIR showed a significant decrease in the organic content of all tissues. The weight percentage (wt %) calcium content of dentin and bone increased significantly following irradiation with a p-value of .002 for both tissues, but the wt % of phosphorus content was not influenced significantly. The morphological alterations expressed signs of fusion in all the samples.

show abstract

Chemical Changes Associated with Increased Acid Resistance of Er:YAG Laser Irradiated Enamel

Cited by 14 publications

References 28 publications

The Effects of Remineralization via Fluoride Versus Low-Level Laser IR810 and Fluoride Agents on the Mineralization and Microhardness of Bovine Dental Enamel

The Effects of Remineralization via Fluoride Versus Low-Level Laser IR810 and Fluoride Agents on the Mineralization and Microhardness of Bovine Dental Enamel

Chemical Changes of Enamel Produced by Sodium Fluoride, Hydroxyapatite, Er:YAG Laser, and Combined Treatments

Effect of 2.94 µm Er: YAG laser on the chemical composition of hard tissues

Contact Info

Product

Resources

About