Your facelift probably did not pull on any facial muscles firmly enough to change your bite over three years. Bite imbalance should be evaluated by your dentist, as a poor occlusion over time can lead to tooth wear and loss, and TMJ problems with the clicking and shift your describe. Overbites...
As illustrated in many of the other answers already given, the risks of a temporal lift are damage to a branch of the facial nerve resulting weakness or paralysis of the upper face/forehead, numbness, loss of hair along the incision line, poor scarring, infection, asymmetry, and bleeding...