THE ULTIMATE GUIDE TO BOTULINUM TOXINS IN HUMANS

Botulinum toxin type-A has also been used in the treatment of gummy smiles;[167] the material is injected in the hyperactive muscles of higher lip, which causes a reduction inside the upward movement of lip Therefore leading to a smile by using a fewer publicity of gingiva.The oral commissures (depressor anguli oris muscles) are An additional commo