We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
The International Journal of Oral & Maxillofacial Implants
Login:
username:

password:

Plattform:

Forgotten password?

Registration

Int J Oral Maxillofac Implants 29 (2014), No. 2     21. Mar. 2014
Int J Oral Maxillofac Implants 29 (2014), No. 2  (21.03.2014)

Online Article, Page 265-271, doi:10.11607/jomi.te63, PubMed:24683590


Online Article: Biomechanics and Peri-implantitis: The Effect of a Subcrestal Wing-Thread to Decrease Alveolar Crestal Bone Strain. Theory, Finite Element Analysis, and Clinical Application
Laster, Zvi / Weissberg, Ilan / Kablan, Fares
Purpose: This study used finite element analysis and a clinical case example to test the hypothesis that a wing-thread placed 4 mm below the top of an implant would decrease crestal bone loss in function.
Materials and Methods: Finite element analysis was used to compare standard and wingthread implants subjected to axial and off-axis forces based on the hypothesis that decreasing bone strain at the alveolar crestal margin improves peri-implant bone stability. A clinical case example of the wing-thread implant was followed for 30 months.
Results: Stress concentration was diminished at the crest when a wing-thread was used compared to a standard implant body. Ninety-degree lateral forces were diminished by a factor of 10 in the wing-thread implant. A patient followed for 30 months showed stable bone levels around the wing-thread implants.
Conclusion: The wing-thread hypothesis appears to have some support for increasing bone stability based on finite element analysis and early clinical results.

Keywords: biomechanics, bone loss, bone strain, mechanostat, peri-implantitis, wing-thread