Tensile bond strength of sealants following Er:YAG laser etching compared to acid etching in permanent teeth.


:The aim of this in vitro study was to assess the effect of Er:YAG laser surface treatment on the tensile bond strength of a sealant in permanent teeth. A total of 30 sound third molars were selected and embedded in cold-cure acrylic resin. The enamel surfaces were flattened by a grinding. The teeth were randomly divided into three groups and pretreated as follows: (1) 37% phosphoric acid; (2) Er:YAG laser (1.5 ml/min water spray, 100 mJ energy output, 10 Hz frequency, focal distance 17 mm); (3) Er:YAG laser + 37% phosphoric acid. The treated surfaces were isolated by double adhesive Sellotape and after insertion of a split Teflon matrix at an isolated site, sealant was applied. The specimens were thermocycled and stored at 37°C in distilled water for 72 h, then subjected to a tensile bond strength test (50 kgf at 0.5 mm/min). The mean tensile bond strengths (± SD, in megapascals) were: 18.51 ± 5.68 in group 1, 8.06 ± 2.69 in group 2, and 17.33 ± 5.04 in group 3. Data were submitted to analysis of variance and the Tukey test. No significant difference were found between groups 1 (37% phosphoric acid) and group 3 (Er:YAG laser + 37% phosphoric acid) but treatment with the Er:YAG laser alone (group 2) resulted in significantly lower tensile bond strength than seen in the other groups. In this setting, the Er:YAG laser prepared the enamel surface for sealing but did not eliminate the need for acid etching before sealant application.


Lasers Med Sci


Shahabi S,Bagheri HG,Ramazani K




Has Abstract


2012-03-01 00:00:00












  • An investigation into the inhibitory effect of ultraviolet radiation on Trichophyton rubrum.

    abstract::Fungal infection of nails, onychomycosis, is predominantly caused by Trichophyton rubrum. This infection is an important public health concern due to its persistent nature and high recurrence rates. Alternative treatments are urgently required. One such alternative is phototherapy involving the action of photothermal ...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Cronin LJ,Mildren RP,Moffitt M,Lauto A,Morton CO,Stack CM

    更新日期:2014-01-01 00:00:00

  • Laser/LED phototherapy on the repair of tibial fracture treated with wire osteosynthesis evaluated by Raman spectroscopy.

    abstract::The aim of the present study was to assess, by means of Raman spectroscopy, the repair of complete surgical tibial fractures fixed with wire osteosynthesis (WO) treated or not with infrared laser (λ780 nm) or infrared light emitting diode (LED) (λ850 ± 10 nm) lights, 142.8 J/cm2 per treatment, associated or not to the...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Pinheiro ALB,Soares LGP,da Silva ACP,Santos NRS,da Silva APLT,Neves BLRC,Soares AP,Silveira L Jr

    更新日期:2018-11-01 00:00:00

  • Effects of the percentage of air/water in spray on the efficiency of tooth ablation with erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser irradiation.

    abstract::We aimed at examining the effects of a percentage of air/water in spray on the cutting efficiency of Er,Cr:YSGG laser for enamel and dentin. The intensity and frequency of irradiation were 3.0 W and 20 Hz for the enamel surface and 2.0 W and 20 Hz for the dentin surface, respectively. Flattened surfaces of enamel and ...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Shinkai K,Takada M,Kawashima S,Suzuki M,Suzuki S

    更新日期:2019-02-01 00:00:00

  • Effect of diode laser application as an adjunct to nonsurgical periodontal therapy on the reduction of red complex microorganisms in type 2 diabetics with chronic periodontitis.

    abstract::Bactericidal and detoxification effects of diode laser (DL) have been reported in periodontal treatment. The objective of this study was investigating the additional effect of DL with nonsurgical periodontal treatment on the red complex bacteria in type 2 diabetes mellitus (DM) patients with chronic periodontitis (CP)...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,随机对照试验


    authors: Kocak E,Sağlam M,Arslan U,Kayis SA,Kebapcilar L,Loos BG,Hakki SS

    更新日期:2020-08-01 00:00:00

  • A review of monochromatic light devices for the treatment of alopecia areata.

    abstract::There are many laser technologies that are being tested that claim to support hair regrowth for patients with alopecia areata (AA). In this paper, we will determine whether the body of evidence supports the use of devices using monochromatic light sources to treat AA. Articles were gathered from PubMed, Embase, and th...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,meta分析,评审


    authors: Darwin E,Arora H,Hirt PA,Wikramanayake TC,Jimenez JJ

    更新日期:2018-02-01 00:00:00

  • Efficacy of antimicrobial photodynamic therapy as an adjuvant in periodontal treatment in Down syndrome patients.

    abstract::Down syndrome (DS) has characteristics that include mental retardation, a characteristic phenotype, congenital heart defects, immune disorders, and increased risk of periodontal disease (PD). Antimicrobial photodynamic therapy (aPDT) is the combined use of photosensitizers associated with low-level laser (LLL) and oxy...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,随机对照试验


    authors: Martins F,Simões A,Oliveira M,Luiz AC,Gallottini M,Pannuti C

    更新日期:2016-12-01 00:00:00

  • Histological evaluation of the safety of toluidine blue-mediated photosensitization to periodontal tissues in mice.

    abstract::Our previous in vitro study has shown that toluidine blue (TB)-mediated lethal photosensitization of periodontal pathogens (PPs) from periodontal patients is possible. The purpose of this study was to investigate whether TB-mediated photosensitization exerted damaging effects on periodontal tissues in mice. Twenty-fou...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Luan XL,Qin YL,Bi LJ,Hu CY,Zhang ZG,Lin J,Zhou CN

    更新日期:2009-03-01 00:00:00

  • The effect of pre-operative topical anaesthetic cream on the ablative width and coagulative depth of ablative fractional resurfacing laser.

    abstract::Topical anaesthetic cream (TAC) is commonly used as a pre-treatment of ablative fractional resurfacing (AFR) laser. Most of anaesthetic cream contains distilled water as major component. Therefore, pre-operative TAC may interfere the photothermal reaction in the skin treated with fractional carbon-dioxide (FCO2) laser...

    journal_title:Lasers in medical science

    pub_type: 临床试验,杂志文章


    authors: Punyaratabandhu P,Wanitphakdeedecha R,Pattanaprichakul P,Sitthinamsuwan P,Phothong W,Eimpunth S,Lohsiriwat V,Manuskiatti W

    更新日期:2017-02-01 00:00:00

  • The effect of Er,Cr:YSGG laser, fluoride, and CPP-ACP on caries resistance of primary enamel.

    abstract::The aim of this in vitro study was to determine the effect of different remineralization agents and laser on caries resistance of primary enamel. In the study, 150 sound primary molars were used. The initial microhardness values were measured and the teeth were randomly assigned to ten treatment groups (n = 15): no tr...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Serdar-Eymirli P,Turgut MD,Dolgun A,Yazici AR

    更新日期:2019-07-01 00:00:00

  • Specific effects of laserpuncture on the cerebral circulation.

    abstract::Acupuncture is a form of traditional Chinese medicine that has developed over thousands of years. We studied the effects of laser puncture, needle acupuncture, and light stimulation on cerebral blood flow in 15 healthy volunteers (mean age 25.0±1.9 years, 5 female, 10 male) with non-invasive transcranial Doppler sonog...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Litscher G,Wang L,Wiesner-Zechmeister M

    更新日期:2000-01-01 00:00:00

  • Effects of the combination of low-level laser irradiation and recombinant human bone morphogenetic protein-2 in bone repair.

    abstract::Low-level laser irradiation (LLLI) and recombinant human bone morphogenetic protein type 2 (rhBMP-2) have been used to stimulate bone formation. LLLI stimulates proliferation of osteoblast precursor cells and cell differentiation and rhBMP-2 recruits osteoprogenitor cells to the bone healing area. This in vivo study e...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Rosa AP,de Sousa LG,Regalo SC,Issa JP,Barbosa AP,Pitol DL,de Oliveira RH,de Vasconcelos PB,Dias FJ,Chimello DT,Siéssere S

    更新日期:2012-09-01 00:00:00

  • Effect of low-level laser therapy on oral keratinocytes exposed to bisphosphonate.

    abstract::Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a side effect of bisphosphonate therapy. However, its pathophysiology is not yet fully elucidated, and effective treatment of BRONJ remains unclear. The aim of this study is to investigate the effects of alendronate on oral keratinocytes and of low-level laser...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Lee JY,Kim IR,Park BS,Kim YD,Chung IK,Song JM,Shin SH

    更新日期:2015-02-01 00:00:00

  • Efficacy of low-level laser therapy in the management of orthodontic pain: a systematic review and meta-analysis.

    abstract::This review aimed to identify the efficacy of low-level laser therapy (LLLT) in the management of orthodontic pain. This systematic review and meta-analysis was carried out in accordance with Cochrane Handbook and the PRISMA statement. An extensive literature search for RCTs, quasi-RCTs, and CCTs was performed through...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,meta分析,评审


    authors: He WL,Li CJ,Liu ZP,Sun JF,Hu ZA,Yin X,Zou SJ

    更新日期:2013-11-01 00:00:00

  • Diabetic distal symmetric polyneuropathy: effect of low-intensity laser therapy.

    abstract::Low-intensity laser therapy (LILT) has been considered as a treatment modality in diabetic distal symmetric polyneuropathy (DSP). The aim of this study is to determine the effectiveness of LILT on DSP. We examined 107 subjects with type 2 diabetes for detection of DSP using the Michigan Neuropathy Screening Instrument...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Khamseh ME,Kazemikho N,Aghili R,Forough B,Lajevardi M,Hashem Dabaghian F,Goushegir A,Malek M

    更新日期:2011-11-01 00:00:00

  • Microtensile bond strength of an etch-and-rinse adhesive to enamel and dentin after Er:YAG laser pretreatment with different pulse durations.

    abstract::The purpose of this study is to evaluate microtensile bond strength (μTBS) of an etch-and-rinse adhesive to enamel and dentin after treatment with Er:YAG laser using different pulse durations. Extracted human molars were flattened to obtain enamel or dentin surfaces. The enamel specimens (E) were divided into nine gro...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Firat E,Gurgan S,Gutknecht N

    更新日期:2012-01-01 00:00:00

  • Photobiomodulation improves motor response in patients with spinal cord injury submitted to electromyographic evaluation: randomized clinical trial.

    abstract::Photobiomodulation is a treatment that has been widely used in neurotrauma and neurodegenerative diseases. In the present study, low-level laser therapy was administered to patients with spinal cord injury. Twenty-five individuals were divided into two groups: placebo photobiomodulation plus physiotherapy and active p...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,随机对照试验


    authors: da Silva FC,Gomes AO,da Costa Palácio PR,Politti F,de Fátima Teixeira da Silva D,Mesquita-Ferrari RA,Fernandes KPS,Bussadori SK

    更新日期:2018-05-01 00:00:00

  • Optical coherence tomography parameters as predictors of treatment response to a 577-nm subthreshold micropulse laser in chronic central serous chorioretinopathy.

    abstract::To determine the relation between retinal microstructural changes and the response to 577-nm subthreshold micropulse laser (SML) treatment in chronic central serous chorioretinopathy (cCSC). This retrospective study included 39 eyes of 39 patients with cCSC, treated with the 577-nm SML. The eyes were evaluated in thre...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Altınel MG,Acikalin B,Gunes H,Demir G

    更新日期:2021-01-07 00:00:00

  • Desferrioxamine shows different potentials for enhancing 5-aminolaevulinic acid-based photodynamic therapy in several cutaneous cell lines.

    abstract::Protoporphyrin IX (PpIX) is the photosensitizer in 5-aminolaevulinic acid (ALA)-based photodynamic therapy (PDT). Its further bioconversion to heme requires iron and can be suppressed by iron chelators such as desferrioxamine (DFO). To investigate the effectiveness of DFO in enhancing PpIX-based PDT in skin tissue, we...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Yang J,Xia Y,Liu X,Jiang S,Xiong L

    更新日期:2010-03-01 00:00:00

  • Computer-assisted evaluation of microleakage after apical resection with laser and conventional techniques.

    abstract::The purpose of this in vitro study was to observe the morphological changes and apical dye penetration at apical dentin surfaces after apicoectomy with conventional techniques and laser beam. Sixty single-rooted extracted teeth were selected for the study. The crowns were resected below the cemento-enamel junction. Th...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Arisu HD,Sadik B,Bala O,Türköz E

    更新日期:2008-10-01 00:00:00

  • Evaluation of scars in children after treatment with low-level laser.

    abstract::Burn scars are known for their tendency to worsen with hypertrophy and contracture, causing esthetic and functional problems. The objective is to analyze the effectiveness of low-level laser therapy on post-burn hypertrophic scar tissue in children. A randomized controlled study included 15 children, ranging from 2 to...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,随机对照试验


    authors: Alsharnoubi J,Shoukry KE,Fawzy MW,Mohamed O

    更新日期:2018-12-01 00:00:00

  • Regulation of the cardiovascular function by CO2 laser stimulation in anesthetized rats.

    abstract::Physical stimulation of body surface points is known to affect various organ functions. In traditional Chinese medicine, so-called acupoints were defined. These points can be physically stimulated to effectively treat various diseases. Here we describe for the first time the effect of CO(2) laser stimulation at the ac...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Friedemann T,Shen X,Bereiter-Hahn J,Schwarz W

    更新日期:2012-03-01 00:00:00

  • Low-energy irradiation stimulates formation of osteoclast-like cells via RANK expression in vitro.

    abstract::Low-energy laser irradiation (Ga-Al-As semiconductor laser, output 50 mW) was applied to rat osteoclast precursor cells for 1, 3, 6, or 10 min at 24-h intervals during the culture period. The number of tartrate-resistant acid phosphatase positive multinucleate cells was increased by approximately 1.3-fold in the 3- an...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Aihara N,Yamaguchi M,Kasai K

    更新日期:2006-04-01 00:00:00

  • One-year clinical results of Er,Cr:YSGG laser application in addition to scaling and root planing in patients with early to moderate periodontitis.

    abstract::In 30 patients with periodontitis, a total of 278 teeth exhibiting bleeding on probing, subgingival calculus, and a probing depth between 3-6 mm were examined. For each participant, two treatment types were alternatively applied on the contralateral quadrants: scaling and root planing (SRP) as control, and SRP followe...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Kelbauskiene S,Baseviciene N,Goharkhay K,Moritz A,Machiulskiene V

    更新日期:2011-07-01 00:00:00

  • ENAP vs LANAP: assessment of revascularization using ultrasound Doppler flowmetry-a split-mouth randomized controlled clinical trial.

    abstract::Laser-assisted new attachment procedure (LANAP) is a new protocol that has been proposed for the treatment of periodontitis. However, there is little evidence regarding the rate of revascularization and the clinical efficacy of LANAP over conventional periodontal therapies. Hence, this study is done to evaluate and co...

    journal_title:Lasers in medical science

    pub_type: 杂志文章,随机对照试验


    authors: Sameera S,Aravind Kumar P,Nagasri M,Indeevar P,Raviraj K

    更新日期:2018-08-01 00:00:00

  • Comparative study of treatment for striae alba stage striae gravidarum: 1565-nm non-ablative fractional laser versus fractional microneedle radiofrequency.

    abstract::Striae gravidarum is a common dermatologic condition for females caused by multiple factors during pregnancy. It remains a therapeutic challenge especially in the striae alba (SA) stage, generating psychological and emotional distress to those affected. This study aims to compare the efficacy and safety of 1565-nm non...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Tang Z,Wen S,Liu T,Yu A,Li Y

    更新日期:2021-01-07 00:00:00

  • Application of phototherapy for the healing of the navels of neonatal dairy calves.

    abstract::The present work evaluated the effects of LED light irradiation on the healing of the navels of neonatal dairy calves. Fifty-seven neonatal calves were divided into two groups. Animals had their umbilical stumps immersed in 10% iodine tincture for 60 s, and this process was repeated every 24 h for three consecutive da...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: de Souza Faria ALB,Conrado LAL,Vanzela LS,Villaverde AB,Munin E

    更新日期:2017-09-01 00:00:00

  • Characterization of dental caries by LIF spectroscopy with 404-nm excitation.

    abstract::The potential of laser-induced fluorescence (LIF) spectroscopy for the characterization of different stages of dental caries using 404-nm diode laser excitation was investigated. In vitro spectra from 16 sound, 10 noncavitated carious and 10 cavitated carious molar teeth were recorded on a miniature fibre-optic spectr...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Thomas SS,Jayanthi JL,Subhash N,Thomas J,Mallia RJ,Aparna G

    更新日期:2011-05-01 00:00:00

  • Effect of phototherapy with light-emitting diodes (890 nm) on tendon repair: an experimental model in sheep.

    abstract::The effect of phototherapy with 890-nm light-emitting diodes (LEDs) on the healing of experimentally induced tendinitis in sheep was evaluated in this study. Partial tenotomies measuring 0.2 cm wide × 0.5 cm long were performed on the second third of the superficial digital flexor tendons of 10 healthy sheep. The anim...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: de Mattos LH,Álvarez LE,Yamada AL,Hussni CA,Rodrigues CA,Watanabe MJ,Alves AL

    更新日期:2015-01-01 00:00:00

  • Different CO2 laser vaporization protocols for the therapy of oral precancerous lesions and precancerous conditions: a 10-year follow-up.

    abstract::Use of the CO(2) laser (λ = 10.6 μm, continuous wave, defocused) is an established procedure for the treatment of premalignant lesions. Through employment of the sp-mode as well as scanners, thermal laser effects can be reduced but, on the other hand, a lesser degree of destruction of dysplastic cells could lead to an...

    journal_title:Lasers in medical science

    pub_type: 临床试验,杂志文章


    authors: Deppe H,Mücke T,Hohlweg-Majert B,Hauck W,Wagenpfeil S,Hölzle F

    更新日期:2012-01-01 00:00:00

  • Toxicity of photodynamic therapy with LED associated to Photogem®: an in vivo study.

    abstract::The aims of this study were to evaluate the effects of Photogem®-mediated photosensitization on rat palatal mucosa and the biodistribution of the photosensitizer in this tissue. A solution of Photogem® (500 or 1000 mg/l) was applied to the palatal mucosa for 30 min and the exposure time to blue LED (460 nm) was 20 min...

    journal_title:Lasers in medical science

    pub_type: 杂志文章


    authors: Trindade FZ,Pavarina AC,Ribeiro AP,Bagnato VS,Vergani CE,Costa CA

    更新日期:2012-03-01 00:00:00