A smile expresses a feeling of joy, success, sensuality, affection and courtesy, and reveals self-confidence and kindness. The harmony of the smile is determined not only by the shape, position and the colour of the teeth but also by the gingival tissues1. Gummy smile is seen due to improper relation between gingival tissue and tooth, with gingival tissue in excess and tooth portion in a small amount. Excessive gingival display (EGD) commonly described as “gummy smile” is a frequent cause of patient dissatisfaction, which can occur because of various intraoral or extraoral etiologies2. The extraoral causes of a gummy smile are vertical maxillary excess (VME), hypermobile upper lip (HUL), or a short upper lip (SUL measured from the subnasale to the inferior border of the upper lip). The average length of the maxillary lip is 20-22mm in young adult females and 22-24 in young adult males3. In the literature, different techniques have been reported for the treatment of the hyperactive upper lip, injections of botulinum
…show more content…
Later on it was introduced in dentistry, after being modified in 2006 by Rosenblatt and Simon.
An Oral screen was first introduced to orthodontic profession by Newel about a century ago in 1912. It has been used to eliminate oral dysfunction, establish muscular balance, and correct or diminish maxillary incisor protrusion; treat mouth breathing habit; tongue thrusting habit; to achieve physiological expansion of upper and lower arches by force elimination method of orofacial musculature. It has also helped to achieve normal muscular balance and growth of upper lip by stretch exercise of upper lip.
The objective of lip repositioning is to limit the retraction of elevator smile muscles. Lip repositioning results in shallow vestibule restricting the muscle pull therapy limiting the gingival display during smiling.
Case
Later on it was introduced in dentistry, after being modified in 2006 by Rosenblatt and Simon.
An Oral screen was first introduced to orthodontic profession by Newel about a century ago in 1912. It has been used to eliminate oral dysfunction, establish muscular balance, and correct or diminish maxillary incisor protrusion; treat mouth breathing habit; tongue thrusting habit; to achieve physiological expansion of upper and lower arches by force elimination method of orofacial musculature. It has also helped to achieve normal muscular balance and growth of upper lip by stretch exercise of upper lip.
The objective of lip repositioning is to limit the retraction of elevator smile muscles. Lip repositioning results in shallow vestibule restricting the muscle pull therapy limiting the gingival display during smiling.
Case