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Er,Cr:YSGG

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https://www.readbyqxmd.com/read/28936282/effect-of-thermocycling-and-surface-treatment-on-repair-bond-strength-of-composite
#1
Nazanin Kiomarsi, Pardis Saburian, Nasim Chiniforush, Mohammad-Javd Karazifard, Sedighe-Sadat Hashemikamangar
BACKGROUND: Repair of composite restorations is a conservative method that can increase the longevity and durability of restorations while preserving the tooth structure. Achieving a suitable bond between the old and new composite is difficult. To overcome this problem, some methods have been recommended to increase the repair bond strength of composite.This study aimed to assess the effect of aging by thermocycling (5,000 and 10,000 cycles) and mechanical surface treatments (Er,Cr:YSGG laser and bur) on repair shear bond strength of composite resin...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28920187/sub-ablative-er-cr-ysgg-laser-irradiation-under-all-ceramic-restorations-effects-on-demineralization-and-shear-bond-strength
#2
Serdar Bağlar
This study evaluated the caries resistant effects of sub-ablative Er,Cr:YSGG laser irradiation alone and combined with fluoride in comparison with fluoride application alone on enamel prepared for veneer restorations. And also, evaluated these treatments' effects on the shear bond strength of all-ceramic veneer restorations. One hundred and thirty-five human maxillary central teeth were assigned to groups of 1a-control, 1b-laser treated, 1c-fluoride treated, 1d-laser + fluoride treated for shear bond testing and to groups of 2a-positive control(non-demineralised), 2b-laser treated, 2c-fluoride treated, 2d-laser + fluoride treated, 2e-negative control (demineralised) for microhardness testing (n = 15, N = 135)...
September 17, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28890621/soft-tissue-applications-of-er-cr-ysgg-laser-in-pediatric-dentistry
#3
Gyanendra Kumar, Ferah Rehman, Vivek Chaturvedy
Soft tissue laser, such as diode and Nd:YAG lasers were initially used in soft tissue lesions because of its increased success rate. It was because of the fact that these lasers were well-absorbed by chromophores, such as hemoglobin and melanin which are found abundant in the oral mucosa. The introduction of erbium family in 1990 comprising the Er:YAG and Er,Cr:YSGG lasers made the hard tissue laser a boon for dentistry. Erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG) was introduced in 1997 for the surgical needs of clinical dentistry in general practice...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28765674/a-comparative-evaluation-of-retention-of-pit-and-fissure-sealants-placed-with-conventional-acid-etching-and-er-cr-ysgg-laser-etching-a-randomised-controlled-trial
#4
Gyanendra Kumar, Jatinder Kaur Dhillon, Ferah Rehman
Aim: The aim of this study was to compare the retention rates of sealant placed either with conventional acid etching or Er,Cr:YSGG laser pretreatment of enamel surface. Materials and methods: This is a prospective, single blind randomised controlled clinical trial enrolling 200 permanent first molars in 50 patients, aged 6-12 years for sealant placement. Study followed split mouth design where each side of the arch was randomly allocated to the two treatment group. Group A(Acid etch group): 37 % phosphoric acid (Scotchbond, 3M ESPE, Seefeld, Germany) was applied for 15 seconds, rinsed with water for 20 seconds and then air-dried using air spray...
December 30, 2016: Laser Therapy
https://www.readbyqxmd.com/read/28685202/spectrophotometric-analysis-of-the-effectiveness-of-a-novel-in-office-laser-assisted-tooth-bleaching-method-using-er-cr-ysgg-laser
#5
Dimitrios Dionysopoulos, Dimitrios Strakas, Kosmas Tolidis, Effrosyni Tsitrou, Effimia Koumpia, Eugenia Koliniotou-Koumpia
The purpose of this in vitro study was to compare the effectiveness of a novel Er,Cr:YSGG laser-assisted in-office tooth bleaching method with a conventional method by spectrophotometric analysis of the tooth color change. Furthermore, the influence of the application time of the bleaching gel on the effectiveness of the methods and the maintenance of the results 7 days and 1 month after the treatments were also evaluated. Twenty-four bovine incisors were stained and randomly distributed into four groups...
July 7, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28557642/comparing-the-efficiency-of-er-cr-ysgg-laser-and-diode-laser-on-human-%C3%AE-defensin-1-and-il-1%C3%AE-levels-during-the-treatment-of-generalized-aggressive-periodontitis-and-chronic-periodontitis
#6
Abdullah Seckin Ertugrul, Yasin Tekin, Ahmet Cemil Talmac
BACKGROUND: The aim of this study is to determine the suitability of the Er,Cr:YSGG and 940 ± 15-nm diode laser for the treatment of generalized aggressive periodontitis and chronic periodontitis by measuring the levels of human β-defensin-1 and IL-1β. PATIENTS AND METHODS: A total of 26 patients were included in this study. The study was designed as a "split-mouth" experiment. We performed scaling and root planing in the right maxillary quadrant, scaling and root planning + Er,Cr:YSGG laser in the left maxillary quadrant, scaling and root planning + 940 ± 15-nm diode laser in the left mandibular quadrant, and only scaling and root planing in the right mandibular quadrant...
May 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28467022/comparing-fibroblast-attachment-in-root-surface-scaling-with-er-cr-ysgg-laser-versus-ultrasonic-scaler-a-sem-study
#7
Reza Fekrazad, Ghogha Lotfi, Mohammad Harandi, Sara Ayremlou, Katayoun A M Kalhori, Gholam Ali Gholami, Hanieh Nokhbatolfoghahaei
BACKGROUND AND OBJECTIVES: The regeneration of periodontal support is the main concern in periodontal therapy. The aim of this in vitro study was to investigate the fibroblasts attachment on root surfaces after scaling with Er, Cr:YSGG laser and ultrasonic instruments using scanning electron microscopy (SEM). METHODS: 72 root plates of ∼6 × 4 × 1 mm(3) in dimension were prepared from 27 single-rooted human mature teeth and were then divided into four groups...
May 3, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28461044/influence-of-laser-irradiation-on-the-push-out-bond-strength-between-a-glass-fiber-post-and-root-dentin
#8
Karla G F Gomes, Natália S Faria, Walter R Neto, Vivian Colucci, Erica A Gomes
STATEMENT OF PROBLEM: A major issue related to the failure of endodontically treated teeth restored with an intraradicular post is gradual debonding of the glass fiber post, resin cement, and dentin. PURPOSE: The purpose of this in vitro study was to evaluate the influence of laser irradiation on the push-out bond strength of glass fiber posts to radicular dentin. MATERIAL AND METHODS: Thirty-two mandibular bovine incisors were endodontically treated and divided into 4 groups according to the surface treatment of the post: silane control (GC); irradiation with Er:YAG (GYAG); irradiation with Er,Cr:YSGG (GCR); and 980-nm diode laser (GDI) application...
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28426292/efficacy-of-three-different-lasers-on-eradication-of-enterococcus-faecalis-and-candida-albicans-biofilms-in-root-canal-system
#9
Silvija Kasić, Marita Knezović, Nataša Beader, Dragana Gabrić, Ana Ivanišević Malčić, Anja Baraba
OBJECTIVE: The objective was to compare the efficacy of three different lasers in disinfection of root canals inoculated with Enterococcus faecalis and Candida albicans biofilms. BACKGROUND: Endodontic space disinfection depends on the type of root canal irrigant used and the way it is delivered and agitated because irrigants have limited ability to reach all parts of root canal system. MATERIALS AND METHODS: Thirty single-rooted human teeth were selected...
July 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28402350/various-tip-applications-and-temperature-changes-of-er-cr-ysgg-laser-irradiated-implants-in-vitro
#10
Georgios E Romanos, Nicholas J Montanaro, Danielle Sacks, Robert J Miller, Fawad Javed, Jose Luis Calvo-Guirado, Rafael A Delgado-Ruiz
The impact of the laser tip on implant temperature when irradiating implants with lasers to treat peri-implantitis has received little attention. The present study was designed to assess the influence of two laser tips (sapphire chisel [MC3] and radial firing perio [RFP]) on temperature change of an implant irradiated with an Er,Cr:YSGG laser in vitro under various operational conditions. The results suggest that Er,Cr:YSGG irradiation using either tip with supplemental cooling can be a thermally safe approach to implant decontamination...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28394240/effect-of-laser-activated-irrigations-on-smear-layer-removal-from-the-root-canal-wall
#11
Xiaoli Wang, Xiaogang Cheng, Baogang Liu, Xin Liu, Qing Yu, Wenxi He
OBJECTIVE: The purpose of this study was to evaluate the effect of laser-activated irrigations (LAI) by using the Erbium: Yttrium Aluminum Garnet (Er:YAG) laser and the Erbium Chromium: Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) laser on removing smear layer (SL) from the root canal wall. BACKGROUND DATA: LAI has been proposed as an adjuvant to conventional protocols of endodontic treatment to enhance the disinfection, which is a promising protocol for SL removal...
April 5, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28375683/can-we-improve-the-laser-etching-with-the-digitally-controlled-laser-handpiece-xrunner
#12
Hilal Yilanci, Serdar Usumez, Aslihan Usumez
OBJECTIVE: The aim of this study was to compare the shear bond strength (SBS), enamel surface characteristics, and the adhesive remnant index (ARI) scores of different etching methods. BACKGROUND DATA: Laser etching changes the physical characteristics of the enamel surface and these alterations hold promise for the conditioning of enamel for bonding procedures. A new Er:YAG laser handpiece is unique in its ability to digitally control size, shape, and depth of irradiated enamel area...
June 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28359996/treatment-of-recurrent-aphthous-stomatitis-with-er-cr-ysgg-laser-irradiation-a-randomized-controlled-split-mouth-clinical-study
#13
RANDOMIZED CONTROLLED TRIAL
Hasan Guney Yilmaz, Mohammed Rateb Albaba, Ayse Caygur, Esra Cengiz, Fatma Boke-Karacaoglu, Hayriye Tumer
The present randomized controlled split mouth clinical study aimed to investigate the efficacy of Er,Cr:YSGG laser irradiation on pain reduction and healing rate of recurrent aphthous stomatitis. 40 patients with RAS were recruited for this study and RAS ulcerations of each patient were randomly assigned to the control or test group. In the test group, Er,Cr:YSGG laser with non-contact mode was used to irradiate RAS lesions. In the placebo group, RAS lesions were irradiated with the same device without laser emission...
May 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28322603/bond-strength-of-abraded-and-non-abraded-bleached-enamel-to-resin-after-er-cr-ysgg-laser-irradiation
#14
Pedro H C Oliveira, Alessandra Cassoni, Aldo Brugnera, Ilana P Tenório, José A Rodrigues
OBJECTIVE: The objective of the study was to evaluate the microtensile bond strength (μTBS) of a composite resin to abraded or non-abraded bleached enamel after Er,Cr:YSGG laser irradiation and to observe the fracture patterns of the tested interfaces. MATERIALS AND METHODS: Two hundred twenty-eight bovine incisors were sectioned, resulting in 228 enamel blocks (7 × 4 × 4 mm(3)) that were divided into 12 groups (n = 19) according to the factors "adhesion" after bleaching (immediate adhesion; after 14 days; and a control group with adhesion on unbleached teeth); enamel "abrasion" (with or without abrasion simulating cavity preparation); and "laser" (with or without Er,Cr:YSGG laser irradiation)...
March 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28301014/evaluation-of-surface-roughness-and-bacterial-adhesion-on-tooth-enamel-irradiated-with-high-intensity-lasers
#15
Ruchele D Nogueira, Camilla B Silva, Cesar P Lepri, Regina Guenka Palma-Dibb, Vinicius R Geraldo-Martins
The aim was to evaluate the surface roughness and bacterial adhesion on enamel irradiated with high intensity lasers, associated or not to a fluoride varnish. Eighty fragments of bovine enamel were equally divided in 8 groups (n=10). Group 1 was not treated and Group 2 received only a 5% fluoride varnish application. The other groups were irradiated with an Er:Cr:YSGG (8.92 J/cm2), an Nd:YAG (84.9 J/cm2) and a diode laser (199.04 J/cm2), associated or not to a 5% fluoride varnish. The surface roughness was measured before and after treatments...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28275279/influence-of-laser-activated-irrigation-with-two-erbium-lasers-on-bond-strength-of-inidividually-formed-fiber-reinforced-composite-posts-to-root-canal-dentin
#16
Ivana Parčina, Amižić, Ivana Miletić, Andrei C Ionescu, Eugenio Brambilla, Dragana Gabrić, Anja Baraba
OBJECTIVE: The aim of this in vitro study was to investigate the effect of laser activated irrigation (LAI) using two erbium lasers on bond strength of individually formed fiber-reinforced composite (FRC) posts to root canal dentin. MATERIALS AND METHODS: Twenty-seven single-rooted human teeth were endodontically treated and after post space preparation divided into three groups (n=9 per group), according to the pre-treatment of post space preparation: 1) Conventional syringe irrigation (CSI) and saline; 2) Er...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28257161/evaluation-of-intra-root-canal-er-cr-ysgg-laser-irradiation-on-prosthetic-post-adherence
#17
Jose Quinto, Marcello Magri Amaral, Carlos Eduardo Francci, Patricia Aparecida Ana, Andreas Moritz, Denise Maria Zezell
PURPOSE: In clinical prosthetics procedures, including endodontics and post fixation, the presence of a smear layer can reduce the post bond strength. An Er,Cr:YSGG laser, which emits at 2780 nm, can promote a smear-layer-free surface due to the ablation process. Considering these aspects, the purpose of this work was to evaluate the influence of Er,Cr:YSGG laser irradiation using either a radial or an axial fiber tip on the bond strength of three resin cements to the fiber-reinforced composite posts...
March 3, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28210439/effect-of-endoactivator-and-er-cr-ysgg-laser-activation-of-qmix-as-final-endodontic-irrigant-on-sealer-penetration-a-confocal-microscopic-study
#18
Sarika Chaudhry, Sudha Yadav, Sangeeta Talwar, Mahesh Verma
BACKGROUND: Through chemomechanical debridement of the root canal is a primary requisite for successful endodontic therapy. Thus the aim of this study was to evaluate the effects of using QmiX alone, QmiX with EndoActivator and QmiX with Er,Cr:YSGG laser for final irrigation on sealer penetration into the dentinal tubules. MATERIAL AND METHODS: 75 extracted human mandibular premolar teeth were treated with sodium hypochlorite (NaOCl) irrigation. The samples were divided into 5 groups according to the final irrigation solution used: (1) 17% EDTA and 2...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28166448/treatment-of-gingival-melanin-hyperpigmentation-with-er-cr-ysgg-laser-short-term-follow-up-of-patient
#19
Basak Kusakcİ Seker
The increasing melanin hyperpigmentation of dark skinned individuals was related to the high activity of melanocytes. Also smoking reactive the melanocytes to produce melanin. Gingival depigmentation is a periodontal plastic procedure which has been carried out by various techniques. A healthy 36-years-old female patient complained about unaesthetic gingiva and she had smoked over 17 years. Hyperpigmentation of gingiva observed on the labial surface of both maxilla and mandibula. Er,Cr:YSGG laser was used for depigmentation with wavelength of 2780nm, frequency of 20hz, and pulse energy between 0-300 Mj...
February 6, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/27885966/er-cr-ysgg-laser-effectively-ablates-single-species-biofilms-on-titanium-disks-without-detectable-surface-damage
#20
Jason M Strever, Jaebum Lee, William Ealick, Mark Peacock, Daniel Shelby, Cristiano Susin, Donald Mettenberg, Ahmed El-Awady, Frederick Rueggeberg, Christopher W Cutler
BACKGROUND: Increasing evidence implicates biofilms, consisting of species such as Porphyromonas gingivalis, in the etiology of peri-implantitis. Multiple approaches to ablate biofilms on failing implants have been proposed, include the use of lasers; most recently the Er,Cr:YSGG laser. The purpose of this study is to establish an in-vitro single-species biofilm model on implant surfaces and determine power settings of the Er,Cr:YSGG laser that remove the biofilm while not causing physical damage to the disk...
November 25, 2016: Journal of Periodontology
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