Surgical reshaping of the gingivae and papillae for correction of deformities (particularly enlargements) and to provide the gingivae with a normal and functional form, the incision creating an external bevel. (Dorland, 28th ed)
Gingivoplasties
D014727
Vestibuloplasty
Those procedures designed to widen the zone of attached gingiva and deepen the vestibular depth which will facilitate the clearance of the area for natural food passage, and provide access for toothbrushing and interdental stimulation.