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Er,Cr:YSGG

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https://www.readbyqxmd.com/read/29133967/comparison-of-marginal-microleakage-of-flowable-composite-restorations-in-primary-canine-teeth-prepared-with-high-speed-diamond-bur-er-yag-laser-and-er-cr-ysgg-laser
#1
Beheshteh Malekafzali, Mohammad Asnaashari, Fateme Javadi
Background and Objectives: Adhesive restorations have become highly popular in pediatric dentistry, and novel methods of cavity preparation with minimal patient discomfort including Er:YAG and Er,Cr:YSGG laser preparations have greatly advanced. This study aimed to compare the microleakage of composite restorations of class V cavities prepared in primary canine teeth with high-speed bur and Er:YAG and Er,Cr:YSGG lasers. Materials and Methods: This in vitro study was conducted on 30 class V cavities prepared on the buccal surfaces of primary canine teeth in three groups (n = 10) of bur preparation, Er:YAG laser and Er,Cr:YSGG laser...
September 30, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29133964/in-vitro-evaluation-of-repair-bond-strength-of-composite-effect-of-surface-treatments-with-bur-and-laser-and-application-of-universal-adhesive
#2
Nazanin Kiomarsi, Melika Espahbodi, Nasim Chiniforush, Mohammad Javd Karazifard, Sedighe Sadat Hashemi Kamangar
Objectives: This study aimed to assess the effect of surface treatment by bur and laser and application of universal adhesive on repair bond strength of composite resin. Materials and Methods: A total of 120 composite blocks measuring 6×4×4 mm were fabricated of Filtek Z250 composite. All samples were subjected to 5,000 thermal cycles and divided into two groups for surface preparation by bur and by Er,Cr:YSGG laser (n = 60). The surfaces were then etched with orthophosphoric acid, rinsed with water and divided into three groups (silane, silane plus Single Bond and silane plus Single Bond Universal)...
September 30, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29123628/evaluation-of-different-types-of-lasers-in-surface-conditioning-of-porcelains-a-review-article
#3
REVIEW
Amirhossin Mirhashemi, Nastaran Sharifi, Mohammad Moharrami, Nasim Chiniforush
To achieve proper bond strength for porcelains, adequate surface roughness is essential, which is traditionally gained by sandblasting or acid etching with hydrofluoric (HF) acid. Nowadays with the development of laser systems, serious efforts were made to apply this new instrument for surface etching of porcelains due to easy usage, safety, and more efficiency. There are different kinds of lasers and porcelains, so choosing the ones which will be good match for each other is crucial. Besides that, changing the irradiation setting can be beneficial as well...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29099682/er-cr-ysgg-laser-energy-delivery-pulse-and-power-effects-on-enamel-surface-and-erosive-resistance
#4
Renan Mota de Oliveira, Vinicius Matsuzaki de Souza, Camila Machado Esteves, Ynara Bosco de Oliveira Lima-Arsati, Alessandra Cassoni, José Augusto Rodrigues, Aldo Brugnera Junior
BACKGROUND: High power lasers have been suggested as a useful tool for dental caries and erosion prevention due to the increase of enamel acid resistance. OBJECTIVE: to evaluate the effect of Er,Cr:YSGG (erbium,chromium:yttrium, scandium, gallium, garnet) laser irradiation pulse frequency and power on enamel surface and acid erosion resistance. METHODS: By combining pulse frequency (5-75 Hz) and power settings (0.10-1.00 W), 20 irradiated groups and one nonirradiated control group were tested...
November 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29098254/-comparison-of-antimicrobial-activity-of-er-cr-ysgg-laser-and-ultrasonic-irrigation-in-root-canal-disinfection
#5
Chun-Hui Lu, Qun Zhong
PURPOSE: The aim of this study was to compare the antimicrobial activity of Er,Cr:YSGG laser and ultrasonic irrigation in root canal disinfection. METHODS: Sixty decayed teeth requiring root canal therapy were divided into 3 groups randomly: Er,Cr:YSGG laser group, ultrasonic irrigation group and control group, 20 in each group. The bacteria in each group were incubated and counted before and after root canal treatment. Statistical analysis was performed using SPSS 19...
June 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29075997/effect-of-different-power-settings-of-er-cr-ysgg-laser-before-or-after-tribosilicatization-on-the-microshear-bond-strength-between-zirconia-and-two-types-of-cements
#6
Leonardo C Zeidan, Camila M Esteves, Juliana A Oliveira, Aldo Brugnera, Alessandra Cassoni, José Augusto Rodrigues
The aim of this study was to evaluate the effect of different output powers of Er,Cr:YSGG laser and the association with tribochemical silica coating on the bond strength between zirconia ceramic and two resin cements. One hundred ninety-two zirconia ceramic bars (IPS e-max ZirCAD Ivoclar Vivadent-) were sectioned (6 × 6 × 4 mm), sintered, and randomly divided into 12 groups for each cement system according to the surface treatment (n = 8): C-without treatment (control); R-tribochemical coating + resin cement (control); 2L-laser (2...
October 27, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29071025/effect-of-various-laser-surface-treatments-on-repair-shear-bond-strength-of-aged-silorane-based-composite
#7
Parnian Alizadeh Oskoee, Siavash Savadi Oskoee, Sahand Rikhtegaran, Fatemeh Pournaghi-Azar, Sarah Gholizadeh, Yasaman Aleyasin, Shahin Kasrae
Introduction: Successful repair of composite restorations depends on a strong bond between the old composite and the repair composite. This study sought to assess the repair shear bond strength of aged silorane-based composite following surface treatment with Nd:YAG, Er,Cr:YSGG and CO2 lasers. Methods: Seventy-six Filtek silorane composite cylinders were fabricated and aged by 2 months of water storage at 37°C. The samples were randomly divided into 4 groups (n=19) of no surface treatment (group 1) and surface treatment with Er,Cr:YSGG (group 2), Nd:YAG (group 3) and CO2 (group 4) lasers...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071024/fracture-resistance-of-incisal-fragments-following-reattachment-with-different-techniques-in-simulated-crown-fractures
#8
Fatih Tulumbacı, Volkan Arıkan, Aylin Akbay Oba, Serdar Bağlar
Introduction: The aim of the present study was to evaluate and compare the effect of acidetching and Er, Cr:YSGG laser treatment before the reattachment of incisal fragments in coronal fractures of permanent incisor teeth. Methods: Sixty-six sound human maxillary incisors were randomly divided into 3 groups (n=22). Teeth were embedded in self-cure acrylic resins by leaving one-third of the crowns out, and uncomplicated crown fractures were obtained using an Instron testing device. The fragments were reattached using 3 different procedures and a hybrid resin composite (Z250): Group I: Acid etching + Prime & Bond NT; Group II: Er,Cr:YSGG + Prime & Bond NT; Group III: Er,Cr:YSGG + Acid etching + Prime & Bond NT...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071020/in-vitro-comparison-of-fluoride-gel-alone-and-in-combination-with-er-cr-ysgg-laser-on-reducing-white-spot-lesions-in-primary-teeth
#9
Fatemeh Molaasadollah, Mohammad Asnaashari, Fatemeh Mashhadi Abbas, Maral Jafary
Introduction: Laser therapy has been suggested as a method for caries-prevention, and ErCr:YSGG laser is increasingly used in dentistry. This study aimed to compare the efficacy of fluoride gel alone and in conjunction with Er,Cr:YSGG laser for remineralization of white spot lesions (WSLs) in primary teeth. Methods: This study was conducted on 20 primary teeth with WSLs extracted for orthodontic reasons. Three sections were made of each tooth at the site of WSLs. The surface area of WSLs was measured under a stereomicroscope at ×25 magnification...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28985086/gingival-melanin-depigmentation-by-er-yag-laser-a-literature-review
#10
Verica Pavlic, Zlata Brkic, Sasa Marin, Smiljka Cicmil, Mirjana Gojkov-Vukelic, Akira Aoki
Laser ablation is recently suggested as a most effective and reliable technique for depigmentation of melanin hyperpigmented gingiva. To date, different lasers have been used for gingival depigmentation (CO2, diode, Nd:YAG, Er:YAG and Er,Cr:YSGG lasers). The use of Er:YAG laser for depigmentation of melanin hyperpigmented gingiva has gained increasing importance in recent years. The purpose of this study was to report removal of gingival melanin pigmentation using an Er:YAG laser in a literature review. The main outcomes, such as improvement of signs (clinical parameters of bleeding, erythema, swelling and wound healing), symptoms (pain) and melanin recurrence/repigmentation were measured...
October 6, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28936282/effect-of-thermocycling-and-surface-treatment-on-repair-bond-strength-of-composite
#11
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
#12
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
#13
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
#14
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
#15
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...
November 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
#16
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...
November 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
#17
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
#18
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
#19
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
#20
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
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