Titanium is actually better for someone who's LOST an entire jaw or a jaw joint than as something to overlay to augment an existing jaw because it's not going to matter much if it's a small to tiny amount off. But if it's a small amount off for a custom aesthetic face implant, there's NO leeway to kind of squeeze it tight to fit the area as would an implant that is NOT metal based. So, I would not say a titanium implant is 'better' for aesthetics only ONLAY cases.
