Can we establish any rules for augmenting the lower third of the face?In looking at the aging lip, there are two important areas to observe.1) One is the shape of the lips themselves, and, i2)the importance of the support provided to the lower third of the face by dentition,grinding and also bone structure. These are all features which require restoration.Not only injection of the lips themselves but also on volumetric restoration of the lower third of the face. The lips should be full and well defined. They should be injected without blunting the edge of the vermilion border of the lips or unnatural fullness above the lips. A physician must also focus on the restoration of the ends of the lips, as well as the building of buttresses at these ends to restore height to the lower third of the face, correcting the labiomandibular grooves and oral commissure. Although dermatologic and esthetic journals deal with substances for implantation, these journals do not, in themselves, hold information regarding the proper goal of lip enhancement. Instead, the answer is found in the dental literature, in which many articles have addressed the proper height, size, and location of the lips as produced by dental restoration. With the patient in the sitting position, the lips should be parallel to a line drawn between the pupils of the eyes. In regard to spatial location, the upper lip should be 18 to 20 mm from the nose and the lower lip should be 36 to 40 mm from the chin. As the dental support is lost over time the lips move farther from your lips with the visual concept your nose is getting larger. The concept of this loss of dental support is commonly referred to as "Long on the Tooth!