None of us can really give you a substantive answer without seeing at least a photograph or you in examination. Your soft tissue coverage over your chin implant (muscle, fat, and skin) had 10 years to accommodate to the presence of your implant before it was removed. 1cc of Radiesse is probably no more than 5-10% of the volume of the removed implant, but at age 29, you still have good tissue elasticity and probably do not have a "hanging" or "witch's chin." The marionette lines (subcommissural lines) that bother you can be filled with one of several filler options, fat grafted or dermal-fat grafted, but I doubt that facelift to tighten these tissues is appropriate.
There is no "chin tightening" option as a "standard" procedure in plastic surgery (including through the old incision), but every patient's exact anatomy has its own unique features and characteristics. See an experienced, ABPS-certified plastic surgeon for an examination and perhaps an innovative solution can be found for your concern.