Related Experiment Video
Updated: May 22, 2026

11:51
An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
Connective tissue attachment to laser-microgrooved abutments: a human histologic case report
Myron Nevins1, Marcelo Camelo, Marc L Nevins
1Associate Clinical Professor, Division of Periodontology, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston MA 02115, USA. nevinsperimp@aol.com
Summary
Laser-ablated microgrooves on implant abutments promote connective tissue attachment, preventing epithelial migration and preserving bone. This case report confirms their effectiveness in human subjects for enhanced dental implant stability.
Area of Science:
- Biomaterials Science
- Periodontology
- Dental Implantology
Background:
- Dental implant success relies on soft tissue integration and crestal bone preservation.
- Laser-ablated microgrooves on implant collars have shown potential for direct connective tissue attachment.
- Previous studies in preclinical models demonstrated efficacy in preventing apical junctional epithelium migration.
Observation:
- This case report investigates the use of laser-ablated microgrooves on abutments in human subjects.
- The microgrooves were precisely configured on the abutment surface.
- Direct connective tissue attachment to the modified abutment surface was observed.
Findings:
- Precisely configured laser-ablated microgrooves facilitated direct connective tissue attachment to the abutment.
- This attachment effectively prevented the apical migration of the junctional epithelium.
- Crestal bone resorption was prevented, safeguarding the bone level around the implant.
Implications:
- Abutment-positioned laser-ablated microgrooves represent a promising technique for improving dental implant outcomes.
- This method enhances peri-implant soft tissue integration and bone maintenance.
- Further clinical studies may validate this approach for routine use in implant dentistry.

