Efficacy of subgingival calculus removal with Er:YAG laser compared to mechanical debridement: an in situ study

Eberhard, Jörg; Ehlers, Heiko; Falk, Wolfgang; Açil, Yahya; Albers, Hans-Karl; Jepsen, Søren

doi:10.1034/j.1600-051x.2003.00052.x

Cited by 129 publications

(134 citation statements)

References 54 publications

Supporting

Mentioning

107

Contrasting

Unclassified

Order By: Relevance

“…4,7 The surfaces irradiated with Er:YAG and Er,Cr:YSGG lasers showed similar morphological characteristics, including root surface roughness, no smear layer, open dentinal tubules and lack of thermal damage. These characteristics are consistent with those observed in other in vitro studies that evaluated the morphology of dentin irradiated with Er:YAG 4,8,11 and Er,Cr:YSGG lasers. 7,9,12,13 The morphological characteristics of the surfaces irradiated with these lasers are explained by the laser tissue ablation mechanism, called photomechanical ab- …”

Section: Discussionsupporting

confidence: 80%

“…Some studies have shown that irradiation of root surfaces using Er:YAG lasers does not promote the formation of a smear layer. 4,7 Additionally, the Er:YAG and ErCr: YSGG lasers promote a selective removal of calculus with minimal damage to root surfaces, [8][9][10] and may be clinically effective for stabilizing the clinical parameters of periodontal disease. 2,3 Although the Er:YAG 1 and Er,Cr:YSGG 3 lasers have been recommended for root instrumentation, to our knowledge there are no studies reporting a direct comparison between these tools.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Er,Cr:YSGG and Er:YAG laser irradiation on the adhesion of blood components on the root surface and on root morphology

Oliveira

Theodoro²,

Marcantônio

et al. 2012

Braz. oral res.

View full text Add to dashboard Cite

The aim of this study was to conduct an in vitro evaluation, by scanning electron microscopy (SEM), of the adhesion of blood components on root surfaces irradiated with Er,Cr:YSGG (2.78 µm) or Er:YAG (2.94 µm) laser, and of the irradiation effects on root surface morphology. Sixty samples of human teeth were previously scaled with manual instruments and divided into three groups of 20 samples each: G1 (control group) -no treatment; G2 -Er,Cr:YSGG laser irradiation; G3 -Er:YAG laser irradiation. After performing these treatments, blood tissue was applied to 10 samples of each group, whereas 10 samples received no blood tissue application. After performing the laboratory treatments, the samples were observed under SEM, and the resulting photomicrographs were classified according to a blood component adhesion scoring system and root morphology. The results were analyzed statistically (Kruskall-Wallis and Mann Whitney tests, α = 5%). The root surfaces irradiated with Er:YAG and Er,Cr:YSGG lasers presented greater roughness than those in the control group. Regarding blood component adhesion, the results showed a lower degree of adhesion in G2 than in G1 and G3 (G1 × G2: p = 0.002; G3 × G2: p = 0.017). The Er:YAG and Er,Cr:YSGG laser treatments caused more extensive root surface changes. The Er:YAG laser treatment promoted a greater degree of blood component adhesion to root surfaces, compared to the Er,Cr:YSGG treatment.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Effect of Er,Cr:YSGG and Er:YAG laser irradiation on the adhesion of blood components on the root surface and on root morphology

Oliveira

Theodoro²,

Marcantônio

et al. 2012

Braz. oral res.

View full text Add to dashboard Cite

show abstract

“…20 When irradiation is applied in the subgingival region, which is not in direct contact with the oral environment, this roughness may benefit healing processes because rough surfaces can increase the adhesion of blood components 15 and fibroblasts from the periodontal ligaments. 25 However, it should be taken into consideration that after periodontal treatment, the root surfaces that were once located below the gingival margin will eventually become located above the gingival margin due the retraction of the inflamed gingiva 26 This pattern has been demonstrated in previous studies that compared the roughness of surfaces irradiated with an Er,Cr:YSGG laser 15 or an Er:YAG laser 8 with hand scaling. The rougher texture on root surfaces irradiated with an Er,Cr:YSGG laser may be a result of its thermomechanical ablation mechanism, in which the abrupt evaporation of water from the interprismatic substance promotes micro-explosions that remove hydroxyapatite crystals.…”

Section: Discussionmentioning

confidence: 99%

“…3 Some alternative tools to facilitate SRP have been proposed, such as sonic instruments, 4 ultrasonic instruments 5 and lasers. 6 The alternative use of lasers has been proposed due to some advantages, such as hemostasis, 7 selective calculus removal 8 and antibacterial effects. 9 However, different types of radiation can lead to harmful thermal effects on the root surface 10,11 and can also promote a rough root surface.…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Proportions of External Irrigation During the Er,Cr:YSGG Laser Irradiation on Wear and Roughness of Root Surface

Oliveira

et al. 2016

J Lasers Med Sci

View full text Add to dashboard Cite

Introduction: The aim of this study was to evaluate the influence of different levels of external irrigation during irradiation with an erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser on the roughness and wear of dental tissue during scaling procedures. Methods: Twenty-Five uniradicular bovine teeth had the proximal surfaces planed and divided into 3 regions: upper, middle and lower. The upper region was treated with hand instruments, the middle region was not treated and served as a control, and the lower region was treated by the Er,Cr:YSGG laser. The teeth were randomly divided into five groups according to the different proportions of external irrigation used during the laser irradiation: G1: 10%; G2: 20%; G3: 30%; G4: 40% and G5: 50%. The samples were analyzed for roughness and wear on the root surface irradiated with the laser. Results: There were no differences in the surface roughness and wear parameters between the groups irradiated with the laser, but the laser irradiation produced a rougher surface of the dentin than treatment with hand scaling. Conclusion: Changes in the external irrigation level did not influence the wear and roughness of root surfaces treated with an Er,Cr:YSGG laser.

show abstract

“…1 Unintentional damage can easily occur using hand instruments 6 and power-driven scalers (e.g., ultrasonic and air-abrasion) 7 causing grooves and/or excessive cementum removal. In addition, mechanical root scaling usually leaves behind a smear layer containing harmful bacteria, infected cementum, and calculus debris.…”

Section: Introductionmentioning

confidence: 99%

Pulsed laser ablation of dental calculus in the near ultraviolet

2014

View full text Add to dashboard Cite

Abstract. Pulsed lasers emitting wavelengths near 400 nm can selectively ablate dental calculus without damaging underlying and surrounding sound dental hard tissue. Our results indicate that calculus ablation at this wavelength relies on the absorption of porphyrins endogenous to oral bacteria commonly found in calculus. Suband supragingival calculus on extracted human teeth, irradiated with 400-nm, 60-ns laser pulses at ≤8 J∕cm 2 , exhibits a photobleached surface layer. Blue-light microscopy indicates this layer highly scatters 400-nm photons, whereas fluorescence spectroscopy indicates that bacterial porphyrins are permanently photobleached. A modified blow-off model for ablation is proposed that is based upon these observations and also reproduces our calculus ablation rates measured from laser profilometry. Tissue scattering and a stratified layering of absorbers within the calculus medium explain the gradual decrease in ablation rate from successive pulses. Depending on the calculus thickness, ablation stalling may occur at <5 J∕cm 2 but has not been observed above this fluence.

show abstract

Efficacy of subgingival calculus removal with Er:YAG laser compared to mechanical debridement: an in situ study

Cited by 129 publications

References 54 publications

Effect of Er,Cr:YSGG and Er:YAG laser irradiation on the adhesion of blood components on the root surface and on root morphology

Effect of Er,Cr:YSGG and Er:YAG laser irradiation on the adhesion of blood components on the root surface and on root morphology

Influence of Different Proportions of External Irrigation During the Er,Cr:YSGG Laser Irradiation on Wear and Roughness of Root Surface

Pulsed laser ablation of dental calculus in the near ultraviolet

Contact Info

Product

Resources

About