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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 32 (2012), No. 4     9. July 2012
Int J Periodontics Restorative Dent 32 (2012), No. 4  (09.07.2012)

Page 385-392, PubMed:22577643


Connective Tissue Attachment to Laser-Microgrooved Abutments: A Human Histologic Case Report
Nevins, Myron / Camelo, Marcelo / Nevins, Marc L. / Schupbach, Peter / Kim, David M.
Previous preclinical and clinical studies have demonstrated the effectiveness of precisely configured laser-ablated microgrooves placed on implant collars to allow direct connective tissue attachment to the implant surface. A recent canine study examining laser-ablated microgrooves placed in a defined healing abutment area demonstrated similar findings. In both instances, direct connective tissue attachment to the implant-abutment surface served as an obstacle to the apical migration of the junctional epithelium, thus preventing crestal bone resorption. The current case report examines the effectiveness of abutment-positioned laser-ablated microgrooves in human subjects. As in the preclinical trial, precisely defined laser-ablated microgrooves allowed direct connective tissue attachment to the altered abutment surface, prevented apical migration of the junctional epithelium, and thus protected the crestal bone from premature resorption.