Do Deep Plane facelifts last longer & have more natural results than SMAS? If so, typically how much longer?

Studies have shown no difference, but in my hands a SMAS facelift can last five to ten years with nice results.

Dear Sam Thank you for your question. As you may imagine every cosmetic procedure has a certain period to have its effect and results last. In that sense deep plane lifting has longer lasting result. Properly performed Deep Plane Facelift can take 10 up to 15 years off your appearance, but it can not stop the process of natural aging. Even with aging you will  always remain younger, than if you hadn't done your facelift at all. I hope this helps you. Best wishes

There is no evidence that SMAS flap vs deep plane results in more longevity of results or vice versa.  The SMAS flap technique allows for a more vertical vector of pull than the deep plane and is generally the more universally preferred technique. 

Using the elastic skin to support a facelift in my opinion is a poor idea. In a deep plane are composite facelift the SMAS is repaired under tension to support the lift. This allows for a tension free closure of the skin.

Dear SamStevensonThank you for your question!  The facelift result and longevity depend  on a lot of factors - to give natural results that also change with your face as you age.  With Warm RegardsTrevor M Born MD