Implant Thread Pitch and Height: Importance of these Factors?
Dr. H. asks:
Are there any studies in the peer reviewed literature on implant thread pitch and thread height? Does altering the thread pitch or thread depth have any effect on osseointegration? Are these factors only important for facilitating insertion and achieving primary stability? Should we be basing our selection of implants on these or other similar thread design features? What about selecting implants for placement in the posterior maxilla where there is Type IV bone?
3 Comments on Implant Thread Pitch and Height: Importance of these Factors?
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Alejandro Berg
4/29/2008
Dear H:
there are some studies in terms of thread forms and spacing between them and bone formation and percentage of attachement.
In the end most implants work(dont they?) and you should pick the one that goes better with your rehab skills or the one that pleases you the most in surgical and rehab terms( today one can get good cosmetic results with pretty much every implant out there).
I would say that maybe if you have short amount of bone in the posterior maxilla, you should maybe think outside the box and use syntered porous implants(endopore) just a possibility
Don Callan
4/30/2008
Threads on the implant are there to increase the surface area for the mechanical retention of the implant. The more surface area the better, all implants work, but how long? The long term problem is periodontal pathogens. Sufficient evidence exists to conclude that both periodontitis and peri-implantitis involve the same bacteria, and the same inflammatory process that damages tissues, and also leads to bone loss. Because so many variables may be involved in the success or failure of implants, many variables have been explored in numerous studies and review articles over the years. These include optimizing the health of the bone at the implant site, and approaches to decrease or elimination bacteria on implant surfaces, evaluating different surface textures, as well as elimination of the micro-gap of the implants to prevent peri-implantitis from the periodontal pathogens.
Evattopanny
8/18/2010
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