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Volume 30 , Issue 3
May/June 2010

Pages 245-255

Histologic Evidence of a Connective Tissue Attachment to Laser Microgrooved Abutments: A Canine Study

Myron Nevins, DDS/David M. Kim, DDS, DMSc/Sang-Ho Jun, DDS, MS/Kevin Guze, DMD/Peter Schupbach, PhD/Marc L. Nevins, DMD, MMSc

PMID: 20386781
DOI: 10.11607/prd.00.0922

Previous research has demonstrated the effectiveness of laser-ablated microgrooves placed on implant collars to support direct connective tissue attachments to altered implant surfaces. Such a direct connective tissue attachment serves as a physiologic barrier to the apical migration of the junctional epithelium and prevents crestal bone resorption. The current prospective preclinical trial sought to evaluate bone and soft tissue healing patterns when laser-ablated microgrooves were placed on the abutment. A canine model was selected for comparison to previous investigations that examined the negative bone and soft tissue sequelae of the implant-abutment microgap. The results demonstrate significant improvement in peri-implant hard and soft tissue healing compared to traditional machined abutment surfaces. (Int J Periodontics Restorative Dent 2010;30:245255.)

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