Dehiscence defects around implants
Clinical case: Minor bone augmentation performed simultaneously with implant placement four to six weeks after tooth extraction favours the long-term aesthetic appearance.
After tooth extraction without flap elevation, the alveole is carefully debrided to remove the inflammatory tissue. The extraction socket is allowed to heal for 4–8 weeks.
Following the healing period, during which soft tissue is allowed to heal, implant surgery is performed. Special attention is paid to correct prosthetic positioning of the implant in all three dimensions with good primary stability.
The crater-like defect exposing a part of the buccal implant surface is covered with locally harvested autogenous bone chips in order to promote bone re-formation in the region of the defect as quickly as possible.
The bone volume is further optimised by local augmentation using Geistlich Bio-Oss® granules. The low substitution rate of Geistlich Bio‑Oss® helps to maintain the volume of the alveolar ridge over time, a factor of great importance to the maintenance of the long-term aesthetic outcome.
A collagen membrane, used as a barrier, is applied in two layers in order to improve the stability. Geistlich Bio-Gide® acts as a temporary barrier instead of unnecessary blockade: once the protective function of Geistlich Bio-Gide® has been fulfilled the membrane resorbs. The natural complex structures of the soft-tissue, with all the intrinsic components such as periosteum are formed.1-3
Following the release of the flap by means of a mucoperiosteal incisions, a tension-free primary wound closure is achieved. Provisional implant prosthesis starts after 8 weeks.
Clinical and x-ray findings at the 4-year follow-up. The peri-implant bony conditions are absolutely stable.
Geistlich biomaterials help reconstruct buccal dehiscence at the time of implant placement for a stable long-term result.
References:
- Rothamel D et al. Clin. Oral Implants Res. 2005; 16(3): 369-378. (Pre-clinical study)
- Gielkens PFM et al. Clin. Oral Implants Res. 2008;19:516-521. (Pre-clinical study)
- Rothamel D et al. Int J Oral Maxillofac Implants. 2012 Jan–Feb;27(1):146–54. (Pre-clinical study)
- Treatment Concepts - Minor Bone Augmentation
- Geistlich Bio-Oss®, Geistlich Bio-Gide®, Geistlich Mucograft® and Geistlich Fibro-Gide® - Product Information
- Indication Sheet Special Edition – Long-term stability
- Geistlich Bio-Oss® Collagen and the L-Shape Technique
- A little innovation can make a big difference - Geistlich Bio-Oss® Collagen
- Patient information video – When implants become visible
- Fill the gap - Geistlich Bio-Oss® Collagen and Geistlich Bio-Gide® Shape
- Fill the gap - Geistlich Bio-Oss® Collagen
- L-Shape Technique - Courtesy of Prof. Ronald Jung and Dr. Alfonso Gil
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