Effects of Er:YAG Laser Treatment on the Mineral Content and Morphology of Primary Tooth Enamel

2018 ◽  
Vol 36 (12) ◽  
pp. 680-686
Author(s):  
Firdevs Kahvecioglu ◽  
Kamil Kahraman ◽  
Hayri Akman ◽  
Gül Tosun
Keyword(s):  
Laser Treatment ◽  
Mineral Content ◽  
Er:Yag Laser ◽  
Tooth Enamel ◽  
Primary Tooth

scholarly journals Bond Durability of Er:YAG Laser-Prepared Primary Tooth Enamel

2013 ◽  
Vol 24 (4) ◽  
pp. 330-334 ◽  
Author(s):  
Maria Cristina Borsatto ◽  
Mayara Garcia Martinelli ◽  
Marta Maria Martins Giamatei Contente ◽  
Talitha de Siqueira Mellara ◽  
Jesus Djalma Pecora ◽  
...  
Keyword(s):  
Shear Bond Strength ◽  
Composite Resin ◽  
Er:Yag Laser ◽  
Tooth Enamel ◽  
Water Storage ◽  
Adhesive System ◽  
Primary Tooth ◽  
Cavity Preparation ◽  
Etch And Rinse

This study evaluated in vitro the influence of thermocycling and water storage (WS) on the shear bond strength (SBS) of composite resin in cavities prepared in primary tooth enamel with conventional bur or Er:YAG laser. The test surfaces were obtained from 48 primary molars and randomly assigned to 2 groups (n=24), according to cavity preparation: A: bur-preparation and B: Er:YAG laser irradiation. The specimens were restored with an etch-and-rinse adhesive system and composite resin. Each group was divided into 4 subgroups (n=6) according to WS duration and number of thermal cycles (TCs): I: 24 h WS/no thermocycling; II: 7 days WS/500 TCs; III: 1 month WS/2,000 TCs; IV: 6 months WS/12,000 TCs. The specimens were tested to failure in shear strength at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by two-way ANOVA and Tukey's test. SBS means (S.D.) in MPa were: AI: 17.45 (2.03), AII:16.38 (1.49), AIII: 6.88 (0.66), AIV: 7.77 (1.53), BI: 12.32 (0.99), BII: 15.37 (2.24), BIII: 15.05 (2.01) and BIV-5.51 (1.01). WS duration and number of TCs influenced significantly the SBS values only for BIV (p<0.05). AI presented the highest SBS value, which was statistically similar to those of AII, BII and BIII. In conclusion, the adhesion of an etch-and-rinse adhesive to Er:YAG laser-irradiated primary tooth enamel was affected by the methods used to simulate degradation of the adhesive interface only when 6 months WS/12,000 TCs were employed.

Energy output reduction and surface alteration of quartz and sapphire tips following Er:YAG laser contact irradiation for tooth enamel ablation

2009 ◽  
Vol 41 (8) ◽  
pp. 595-604 ◽  
Author(s):  
Toru Eguro ◽  
Akira Aoki ◽  
Toru Maeda ◽  
Aristeo Atsushi Takasaki ◽  
Mitsuru Hasegawa ◽  
...  
Keyword(s):  
Er:Yag Laser ◽  
Tooth Enamel ◽  
Energy Output ◽  
Surface Alteration

scholarly journals Effects of Er:YAG Laser on Mineral Content of Sound Dentin in Primary Teeth

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Cigdem Guler ◽  
Meral Arslan Malkoc ◽  
Veli Alper Gorgen ◽  
Erhan Dilber ◽  
Mehmet Bulbul
Keyword(s):  
Surface Roughness ◽  
Mineral Content ◽  
Primary Teeth ◽  
Er:Yag Laser ◽  
Short Pulse ◽  
Pulse Mode ◽  
Emission Spectrometry ◽  
Control Group ◽  
Group A ◽  
Group B

The aim of the present study was to evaluate the mineral content of sound dentin in primary teeth prepared using an Er:YAG laser at two different power settings. Thirty-six primary second molars were used in this study. Three dentin slabs were obtained from each tooth, and the slabs were randomly divided into three groups: Group A, control; Group B, Er:YAG laser at 3.5 W, 175 mJ, and 20 Hz, short pulse mode; and Group C, Er:YAG laser at 4 W, 200 mJ, and 20 Hz, medium-short pulse mode. One dentin slab per group was used to evaluate the dentinal morphology and surface roughness values using SEM and profilometer, respectively. Mineral content in the dentin slabs were calculated by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The data were analyzed by one-way analysis of variance and Tukey’s HSD tests. No significant differences in Ca, K, Mg, Na, and P levels or Ca/P ratio were found among the groups(P>0.05). SEM micrographs showed that surface irregularities increased with a higher power setting. The surface roughness after laser treatment in Group B and Group C was found to be similar, unlike Group A.

scholarly journals Pilot Study of Tooth Structure Removed in Primary Molar Zirconia Crown Preparations of Typodont Teeth

2021 ◽  
Vol 03 (02) ◽  
pp. 1-1
Author(s):  
Christopher Wilson ◽  
◽  
Antheunis Versluis ◽  
Daranee Tantbirojn ◽  
Martha Wells ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Primary Tooth ◽  
Primary Molar ◽  
Tooth Structure ◽  
Optical Scanner ◽  
Before And After ◽  
Zirconia Crowns ◽  
Passive Fit ◽  
The Mean ◽  
Dentin Thickness

Prefabricated zirconia crowns (ZRCs) require a passive fit and more reduction than stainless steel crowns (SSC). To determine the mean and maximum reduction depths in the mesial-buccal and occlusal areas for three ZRC brands and one SSC in posterior primary typodont molars and to compare reduction depths to existing literature to determine the preparation’s proximity to pulpal tissue. Four primary maxillary and mandibular typodont teeth (J and S) were prepared according to the manufacturers’ guidelines for three ZRCs and an SSC. The teeth were scanned before and after preparation with an optical scanner, and the mean and maximum depths of reduction for each tooth were calculated in triplicate with custom software and statistically compared among the types of crown. The results were compared to existing data on primary tooth enamel and dentin thickness. Maximum mesial-buccal and occlusal depth respectively of preparation for any ZRC for tooth J was 1.19 mm and 1.58 mm while for tooth S it was 1.06 and 2.07mm Both EZ Crowns and Kinder Krowns required an additional 0.5mm occlusal reduction beyond the manufacturer’s recommendation for tooth S. Ideal preparations of ZRCs require more reduction than SSCs. Both EZ Crowns and Kinder Krowns require more reduction than the manufacturer’s recommendation for a mandibular first primary molar.

Deciphering the molecular effects of non-ablative Er:YAG laser treatment in an in vitro model of the non-keratinized mucous membrane

2020 ◽  
Author(s):  
Laura Huth ◽  
Sebastian Huth ◽  
Yvonne Marquardt ◽  
Philipp Winterhalder ◽  
Timm Steiner ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Mucous Membrane ◽  
In Vitro Model ◽  
Er:Yag Laser ◽  
Molecular Effects ◽  
Vitro Model

scholarly journals Effect of ammonium hexafluorosilicate application for arresting caries treatment on demineralized primary tooth enamel

2013 ◽  
Vol 55 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Yumiko Hosoya ◽  
Katsumi Tadokoro ◽  
Hideji Otani ◽  
Kiyoshi Hidaka ◽  
Takashi Inoue ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Primary Tooth ◽  
Ammonium Hexafluorosilicate ◽  
Caries Treatment

scholarly journals Refractory Pigmentation Associated with Laugier-Hunziker Syndrome following Er:YAG Laser Treatment

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Sertan Ergun ◽  
Alp Saruhanoğlu ◽  
Dante-Antonio Migliari ◽  
Ilay Maden ◽  
Hakkı Tanyeri
Keyword(s):  
Laser Treatment ◽  
Er:Yag Laser

Adhesive Evaluation by Brushing Tests for Hydroxyapatite Films Fabricated on Dentins Using a Water Mist Assisted Er:YAG Laser Deposition Method

2017 ◽  
Vol 758 ◽  
pp. 97-104
Author(s):  
Ei Yamamoto ◽  
Nobuhiro Kato ◽  
Shigeki Hontsu
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Er:Yag Laser ◽  
Tooth Enamel ◽  
Artificial Saliva ◽  
Water Mist ◽  
Laser Deposition ◽  
Deposition Method ◽  
Dentin Surface ◽  
Restoration Technique ◽  
Tooth Surfaces

Hydroxyapatite (HAp) is one of the main structural components in tooth. Therefore, the HAp is an ideal material to repair tooth substances. However, it has not yet been realized that tooth enamel and dentin are artificially repaired using the HAp in operative dentistry. We have proposed and developed a tooth restoration technique with intraoral laser ablation using an Er:YAG (Erbium: Yttrium-Aluminum-Garnet) laser in order to fabricate HAp films on tooth surfaces in the atmosphere at room temperature. Although HAp thin films were formed on dentin surfaces using the Er:YAG laser deposition method, it has still been unclear how is the mechanical durability of the HAp film on tooth substances. In the present study, we conducted brushing tests to evaluate the durability of adhesion between the HAp film and dentin. To form HAp layers on dentin surfaces, an ablation phenomenon was induced by the Er:YAG laser irradiated to the target of α-tricalcium phosphate (α-TCP) under humid conditions. The deposited layers were hydrolyzed by dripping artificial saliva on the surface at 37 degrees Celsius for 24, 48, 72, 120, and 168 hours to create HAp films. The films hydrolyzed for more than 48 hours were attached on the dentin surface after the brushing tests. This result indicates that the α-TCP layer deposited on the dentin surface changes into a crystallized HAp material by the hydrolyzation for more than 48 hours. The crystallization of the film possibly contributes to the high adhesive durability of the HAp film deposited on the dentin.

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