Evaluation of Mineral Content and Photon Interaction Parameters of Dental Enamel After Phosphoric Acid and Er:YAG Laser Treatment

2017 ◽  
Vol 35 (5) ◽  
pp. 270-277 ◽  
Author(s):  
Huseyin Simsek ◽  
Taskın Gurbuz ◽  
Suleyman Kutalmış Buyuk ◽  
Yuksel Ozdemir
Keyword(s):  
Phosphoric Acid ◽  
Laser Treatment ◽  
Mineral Content ◽  
Er:Yag Laser ◽  
Dental Enamel ◽  
Interaction Parameters ◽  
Photon Interaction

scholarly journals Comparison of Phosphoric Acid 37% and Er:YAG Laser Used to Prepare Dental Enamel Palatal Surface before Bonding Braces

2018 ◽  
Vol 05 (01) ◽  
Author(s):  
Pinheiro LL ◽  
Pinheiro NL ◽  
Cavalcanti MF ◽  
Cordeiro JM ◽  
Marcos RL ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Er:Yag Laser ◽  
Dental Enamel

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 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 Human Dental Enamel and Dentin Structural Effects after Er:yag Laser Irradiation

2014 ◽  
Vol 15 (3) ◽  
pp. 283-287 ◽  
Author(s):  
Mateus Rodrigues Tonetto ◽  
Marcelo Ferrarezi de Andrade ◽  
Shelon Cristina Souza Pinto ◽  
Darlon Martins Lima ◽  
José Roberto Cury Saad ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Soft Tissues ◽  
Er:Yag Laser ◽  
Laser System ◽  
Dental Enamel ◽  
Target Tissue ◽  
Structural Effects ◽  
Ablation Process ◽  
Dental Tissues ◽  
Laser Systems

ABSTRACT Ideally projected to be applied on soft tissues, infrared lasers were improved by restorative dentistry to be used in hard dental tissues cavity preparations — namely enamel and dentin. This paper evidentiates the relevant aspects of infrared Erbium laser's action mechanism and its effects, and characterizes the different effects deriving from the laser's beams emission. The criteria for use and selection of optimal parameters for the correct application of laser systems and influence of supporting factors on the process, such as water amount and its presence in the ablation process, protection exerted by the plasma shielding and structural factors, which are indispensable in dental tissues cavity preparation related to restorative technique, are subordinated to optical modifications caused by the interaction of the energy dissipated by these laser light emission systems in the targeted tissue substrate. Clinical relevance Differences in the action of infrared Erbium laser system in regard to the nature of the ablation process and variations on the morphological aspects observed in the superficial structure of the target tissue irradiated, may be correlated to the structural optical modifications of the substrate produced by an interaction of the energy propagated by laser systems. How to cite this article Lima DM, Tonetto MR, de Mendonça AAM, Elossais AA, Saad JRC, de Andrade MF, Pinto SCS, Bandéca MC. Human Dental Enamel and Dentin Structural Effects after Er:yag Laser Irradiation. J Contemp Dent Pract 2014;15(3):283-287.

Influence of the Pulse Duration of an Er:YAG Laser System on the Ablation Threshold of Dental Enamel

2002 ◽  
Vol 17 (4) ◽  
pp. 253-257 ◽  
Author(s):  
C. Apel ◽  
R. Franzen ◽  
J. Meister ◽  
H. Sarrafzadegan ◽  
S. Thelen ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Ablation Threshold ◽  
Er:Yag Laser ◽  
Laser System ◽  
Dental Enamel

scholarly journals Impact of Intracoronal Dentin Treatment Prior to Bleaching on Bond Strength of Restorative Materials

2014 ◽  
Vol 25 (6) ◽  
pp. 519-523 ◽  
Author(s):  
Erica Moreno Zanconato-Carvalho ◽  
João Felipe Bruniera ◽  
Natália Spadini de Faria ◽  
Vivian Colucci ◽  
Danielle Cristine Messias
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Surface Treatment ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Er:Yag Laser ◽  
Composite Resins ◽  
Bleaching Procedure ◽  
Significant Difference ◽  
Restorative Materials

Surface treatment of dentin before the bleaching procedure may affect its permeability and influence the bond strength of restorative materials. This study evaluated the influence of surface treatment before the bleaching on shear bond strength (SBT) of restorative materials to intracoronal dentin. Dentin slabs were subjected to surface treatment: no bleaching (control - CON), no surface treatment + bleaching (HP), 37% phosphoric acid + bleaching (PA) and Er:YAG laser + bleaching (L). After the bleaching procedure, specimens (n=10) were restored with: microhybrid composite resin (MH), flowable composite resin (F), and resin-modified glass-ionomer cement (RMGIC). The shear test was carried out. ANOVA and Tukey's test (α=0.05) showed significant difference for surface treatment and restorative materials (p<0.05). CON presented higher STB and was statistically different from HP (p<0.05). PA and L showed intermediate values and were statistically similar to CON and HP (p>0.05). STB for MH and F were higher than RMGIC (p<0.05), and did not differ from each other (p>0.05). The surface treatments with phosphoric acid and Er:YAG laser before the bleaching procedure provided shear bond strength at the same level of unbleached dentin and the composite resins presented superior bond strength to the intracoronal dentin.

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

Laser-Aided Enamel Conditioning: A Comparison of Microleakage Under Brackets Following Different Aging Procedures

2019 ◽  
Vol 10 (2) ◽  
pp. 154-160
Author(s):  
Ufuk Ok ◽  
Berza Sen Yilmaz ◽  
Sabri Ilhan Ramoglu
Keyword(s):  
Phosphoric Acid ◽  
Thermal Cycling ◽  
Analytical Study ◽  
Er:Yag Laser ◽  
Thermomechanical Loading ◽  
Basic Fuchsin ◽  
Mean Values ◽  
Orthodontic Adhesives ◽  
Significant Difference ◽  
Self Etch

Objective: To evaluate microleakage under the orthodontic adhesives applied following two version of erbium:yttrium aluminum garnet (Er:YAG) laser-aided enamel conditioning after thermal and thermomechanical simulators. Materials and Methods: A comparative analytical study based on metal braces bonded on the enamel of extracted teeth ( n = 160) etched with acid, Er:YAG laser and Er:YAG laser with an X-Runner handpiece, and self-etch adhesives. An arch wire was ligatured to samples which were embedded in acrylic blocks by two with periodontal ligaments. The specimens were subdivided into two groups: those aged with thermal cycling and thermomechanical aging procedures. The samples were immersed in basic fuchsin solution (0.5%) for 24 h. Buccolingual sections were performed on the mesial and distal wings of the braces. The color penetration at the gingival and occlusal margins of the adhesive-bracket and enamel-adhesive was evaluated under a stereomicroscope. The median and mean values of microleakage in both groups were evaluated with Kruskal–Wallis and Mann–Whitney U tests ( P < .05). Results: The highest microleakage was recorded in the gingival part of the samples aged with the thermomechanical aging procedure ( P = .001). The amount of microleakage generally increased in the samples subjected to thermomechanical loading, but the only significant difference was recorded in the gingival part in each four different conditioning methods. Conclusion: Microleakage of the phosphoric acid-etched groups was recorded with lower values for both aging methods. Thermomechanical aging should be included to microleakage studies due to increased microleakage on gingival side for all etching groups.

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