#19 Class I Occlusal Ag Preparation

Isthmus Width: 1.0 - 1.2 mm

• RGS 3 Width (W)

Groove Extensions: 1.0 - 1.5 mm

• RGS 3 (W), RGS 1 Length (L)

Dovetail Extensions: 0.25 - 0.5 mm

• RGS 1 (W)

Fishtail Extensions: 0.8 - 1.0 mm

• RGS 3 (W)

*TIP: You can also use the perio probe provided in your cassettes. Each marking = 1 mm.