Tab1

INCISION	DESCRIPTION	INDICATION	INSTRUMENTS
EXTERNAL BEVEL	Performed in the coronal direction	Gingivectomy; clinical crown augmentation; gingivoplasty; gingival growth	Kirkland gingivectomy knife; or banging ivectomy knife; blades 11D; blades 15; 360 degrees, Laser gingivectomy
INTERNAL BEVEL (reverse or inverted bevel)	Performed in the apical direction, made on the crest of the gingival margin, or 0.5 to 2.0 mm away from the margin	Excisional procedures for new insertion; modified Widman flap; clinical crown augmentation; gingival augmentation	Blades 11,12 or 12B, 15 or 15C
SULCULAR (of the sulcus)	Performed in the apical direction, madein the sulcus and performed in the direction of the alveolar crest	Procedures for preservation of the papillae; esthetic are as; are as with little kerati- nized tissue; guided tissue regeneration procedures (GTR)	Blades 11,12 or 12B, 15 or 15C
RELAXING (vertical)	Perpendicular to the gingival margin at the angles of transition of the teeth	Increase access to allow the flap to be positioned towards the coronal or apical region	Blades 11,12 or 12B, 15 or 15C
FOR THINNING	Increase access to allow the flap to be positioned towards the coronal or apical region	Palatal flaps; distal wedge procedures; gingivectomy with internal bevel; voluminous papillae	Blades 11,12 or 12B, 15 or 15C
CONTRAINCISION	Small incision made in the relaxing incision, and directed towards the base of the flap	Laterally positioned pediculated flaps	Blades 11, 15 or 15C
RELAXING INCISION IN THE PERIOSTEUM	Incision at the base of the flap, cutting the subjacent periosteum	To release the tension on the flap, allowing it to advance in the coronal direction	Blades 11, 15 or 15C