What chin implant materials are probably safer than others?

Silicone Chin Implants have the longest and best track record for safety. Other materials such as PTFE are also safe and commonly used. 

There is no single best chin implant material.  Silastic (aka silicone) implants have the longest track record for facial implants.  They have the main advantage of being easy to place, easily removed, little tissue in-growth, and malleable (allowing implant to be placed through a small incision).Gore-tex, Medpor and Mersilene Mesh are also commonly used and have the main disadvantage of having tissue in growth (making the implant difficult to remove).

Different surgeons will have different preferences as to what type of material they use for chin implants.  One type of implant is not necessarily safer than the others.  I prefer to use the solid silicone implants, as I have more experience with those than the others and obtain good results with them.  Some surgeons will prefer using implants made of other material.  

Solid silicone implants have had a very good track record. Its imperative to fixate the implant with titanium screws as to prevent micro movement and shifting of the implant. This will allow the implant to be encapsulated and protected. I like the the custom implant from Implantech. 

In our practice for over 23 years, we have been using Silastic silicone chin implants with an excellent success rate. For more information, and diagrams and many examples, Please see the link and the video below

I have been using silastic silicone implants for over 20 years and have great results with this implant.  The look is natural and anatomical; the procedure is quick and the recovery is easy.