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Updated: Mar 1, 2026
An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
Hard and soft tissue integration of immediate and delayed implants with a modified coronal macrodesign: Histological,
Ignacio Sanz-Martin1, Fabio Vignoletti1, Javier Nuñez1
1Section of Periodontology, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain.
Aim:
To study the healing of peri-implant tissues around implants with a triangular coronal third (test) or cylindrical (control).
Materials And Methods:
In eight beagle dogs, immediate and delayed implants were placed. Test and control implants were randomly assigned and the hard and soft tissue healing was evaluated with histology and micro-CT analysis at 4 and 12 weeks. The soft tissue contour changes were assessed by image analysis software.
Results:
When measured at the implant shoulder level, the buccal crestal width (primary outcome assessed in mm) attained similar values in test and control implants. More apically (3 mm) test implants had greater buccal crestal width in delayed and immediate sites. For vertical soft and hard tissue measurements, no significant differences were found between Test and Control. Micro-CT evaluation of the buccal volume of interest showed less volume of implant component in T implants in all sites, although bone volume was not significantly different between T/C. Soft tissue contours were similar around T/C implants.
Conclusion:
Triangular implants showed similar percentage of osseointegration, buccal bone volume and soft tissue contours, although attaining greater buccal crestal bone width. No differences were found in regard to soft tissue dimensions and the position of the first bone-to-implant contact.
