The SLink Real Teeth attachment offers the ultimate customization if you like the “open lips” look. This attachment is sculpted prim teeth and tintable lips texture worn with an alpha layer that hides some portion of the existing lips (on your skin). This product does require intermediate editing skills to fit to your lips shape and also be able to tint the lips texture so it blends seamlessly otherwise it would look weird.
I would say that this is really awesome for photographs, but I would not wear it in-world all the time. The front looks nice, and depending on how good you are at editing (I’m not that good), the side view is decent but not perfect (it would never be unless the lips were custom made to fit).
The SLink Real Teeth package includes: SLink Teeth Corner down, up, and straight in Color and in Grey. I am wearing “corner down” to fit the shape of my lips, because my lips corners are slightly turned down. I think Siddean is brilliant for offering 3 corner options so there’s something for everyone.