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Quintessence Publishing: Journals: JOLA


The Journal of Oral Laser Applications

Edited by Prof Dr Andreas Moritz and Prof G. Lynn Powell

Official publication of the European Society for Oral Laser Applications

ISSN (print) 1473-7809 • ISSN (online) 1867-5611

Winter 2007
Volume 7 , Issue 4

Pages: 247-254
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Natural Scaffold Formation After Er,Cr:YSGG Laser Irradiation: Case Report of a Laser-assisted Extraction

Moll, Elena S.

Background: Teeth are extracted for various reasons. Wound toilet is, amongst others, crucial for post-operative morbidity and uneventful healing. It has been reported that low level hard laser irradiation enhances fibroblast proliferation, which accelerates wound healing and might be advantageous for bone in-growth. Objectives: This case report has the purpose to illustrate an indication of an Er,Cr:YSGG-laser in extraction surgery. Conventional post-extractive wound toilet with sutures is replaced by laser decontamination and relative coagulation. Materials and Methods: In a 48 year old female tooth number 34 presents purulent discharge. Radiographic exams show an extensive periapical abscess and a fractured root. After infiltration anaesthetics, the tooth is removed. Fibre dissection and post extractive site decontamination was performed by an Er,Cr:YSGG 2780nm wavelength laser. Results: At 24 hours follow up, a wound, completely closed by a fibrin network, was observed. Radiographic exams 1 week post-operative showed an extensive radiolucency. Neighbouring tooth #33 had on the distal a wide two–wall defect, with an radiographic angle ≥90° and no more than 1mm distal bone support. Radiographic follow up showed at 1,3,6,and at 12 months resolution of the defect with evident bone in-growth and mineralization. Conclusion: Low power Er,Cr:YSGG laser irradiation might have enhanced rapid wound closure within 24 hours after extraction. As if a natural scaffold was formed, under which osteogenic cells were able to repopulate the defect, resulting in radiographic bone regeneration. Rapid epithelium growth closing over an extraction-socket seems to avoid its down-growth in the extraction site

Keywords: Er,Cr:YSGG laser, Bone-regeneration, Natural Scaffold Formation

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