Comparison of Er,Cr:YSGG Laser and Hand Instrumentation on the Attachment of Periodontal Ligament Fibroblasts to Periodontally Diseased Root Surfaces: An In Vitro Study

Hakkı, Sema S.; Korkusuz, Petek; Berk, Gizem; Dündar, Niyazi; Sağlam, Mehmet; Bozkurt, Buket; Puralı, Nuhan

doi:10.1902/jop.2010.090715

Cited by 55 publications

(59 citation statements)

References 40 publications

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“…One possible explanation for this is that surfaces irradiated by the Er,Cr:YSGG laser are relatively more thermally affected than those irradiated by the Er:YAG laser, insofar as the ablation produced by the Er:YAG laser is initiated at temperatures of approximately 300°C, whereas that produced by the Er,Cr:YSGG laser is initiated at approximately 800°C. 5 On the other hand, studies that evaluated the adhesion of fibroblasts 10 and blood elements 13 on root surfaces irradiated with the Er,Cr:YSGG laser showed that irradiated surfaces present a biocompatibility greater than 10 or comparable 11,13 to that of surfaces scaled with hand tools. This may have occurred owing to the work angles used in these studies (~20-30° 10 and ~45° 13 ), smaller than those used in our study.…”

Section: Discussionmentioning

confidence: 99%

“…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%

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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.

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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.

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Section: Discussionmentioning

confidence: 99%

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.

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“…The roughness of the dentin surface is a matter of great importance because when roughness is present in a supragingival region, it can lead to biofilm build-up. 23,24 Thus, polishing of previously irradiated areas is required to reduce the chances of dental plaque accumulation. 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.…”

Section: Discussionmentioning

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

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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.

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“…Labeling protocol was similar to that previously reported [23]. Briefly, cells were incubated for 2 h at 37°C in dialkylcarbocyanine probe DiO (Invitrogen, 10 µg/ml in serum-free culture medium).…”

Section: Methodsmentioning

confidence: 99%

Use of Mesenchymal Stem Cells and Darbepoetin Improve Ischemia-Induced Acute Kidney Injury Outcomes

Altun¹,

Yılmaz²,

Aki³

et al. 2012

Am J Nephrol

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Background: Interest has recently been focused on the possible role of bone marrow-originating stem cells and the therapeutic role of erythropoietin in the recovery of ischemia-induced acute kidney injury (AKI). The aim of the present study was to compare treatment with mesenchymal stem cells (MSCs) to treatment with darbepoetin-α (DPO) or both concomitantly in a rat model of ischemia/reperfusion (I/R) AKI. Methods: Forty male Sprague-Dawley rats were included, and 28 of them were randomly assigned to controls (treated with serum physiologic) or one of the three treatment groups treated with either DPO, MSCs, or both (MSCs and DPO concomitantly) after the induction of I/R injury. Hematocrit, serum creatinine, and BUN levels were obtained at 0, 24, 48, and 72 h of surgery, and renal tissue was obtained at 72 h after nephrectomy for histological analysis. Tissue injury was quantified by standardized histological scoring systems, using light and electron microscopes. Results: Treatment with MSCs or DPO improved renal function compared with controls. However, the improvement observed in renal function in the MSC/DPO group was better than that in the other groups. Histological analysis demonstrated that tissue injury was significantly decreased in rats in the MSC or DPO groups compared to that of the controls; however the best recovery was observed in rats treated with MSCs and DPO concomitantly. Conclusion: These results suggest that concomitant application of DPO and MSCs may be a potential novel renoprotective therapy for patients after having sustained an ischemic renal insult.

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Comparison of Er,Cr:YSGG Laser and Hand Instrumentation on the Attachment of Periodontal Ligament Fibroblasts to Periodontally Diseased Root Surfaces: An In Vitro Study

Abstract: The results of the study indicate that short-pulse laser setup (laser I) looks more promising regarding the attachment, spreading, and orientation of PDL cells.

Cited by 55 publications

References 40 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

Use of Mesenchymal Stem Cells and Darbepoetin Improve Ischemia-Induced Acute Kidney Injury Outcomes

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