All on 4 Doctors

DON T WE NEED 5 IMPLANTS FOR A HYBRID

Discussion by : SajDate : 09-26-2016
Comments : 0
All on 4 Doctors

Traditionally many clinicians have used 5 implants for a hybrid. Today it’s accepted that its not the number of implants but rather the AP spread. Most of the studies comparing 4 and 5 implants have encompassed, mathematical models, finite element analysis and intra-oral strain gauges. It has been established when you put load on a cantilever the most distal implant is in compression and the remainder and the implant next to it is in tension. By increasing the AP spread and tilting the the distal implants we can reduce the cantilever and hence load magnification. The All-On 4 ™ was designed for very specific clinical situations where there are anatomical limitations for placing implants and grafting is avoided.

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