① Making a Model

② Scanning the Model

**Delcam Japan Co., Ltd(iMetric D102i)

③ Setting GAMMATHETA

*Roland DGA Corporation
(Dental Milling Machine DWX-50)

④ Completion of Milling

(L size)

⑥ Remove Sprue Mark with a Carborundum Point

⑦ Removing Scratches with a Silicone Point

⑧ Polishing with a Robinson Brush

⑨ Polishing with a Cotton Buff to Finish

  Processing time

GAMMATHETA can be milled with both dry- and wet-typemilling machines.
Milling time for GAMMATHETA is approx. the same as for BLOCK 2.

  Size of Block and Crown

Even though the size of the mandibular first teeth is the maximum value, M size block is available.
Select the size of block considering the milling time and use of milling bur.
*HANIHARA, K., and KOIZUMI, K. (1979). Sexing from Crown Diameters in the Permanent Teeth by Discriminant Function Method. Journal of the Anthropological Society of Nippon, 87(4), 445-456.

  Polishing Time

GAMMATHETA can be polished with an alumina polisher, but C&B DIAMOND POLISHER or C&B NANO DIAMOND POLISHER, which contain diamond particles, are recommended for smooth, quick polishing

① Sandblasting with Alumina

Blast with 50μm alumina particles at a pressure of 0.2 - 0.3 MPa

② Washing with Phosphoric Acid or cleaner

After trial, always wash the inside of the crown with phosphoric acid or cleaner (Multi Etchant and etc.), then rinse and dry to remove saliva and blood proteins.

③ Surface treatment

Apply surface treatment agent containing silane coupling for ceramics inside of the crown, and then dry

④Tooth Surface
Treatment

Wash tooth and perform surface treatment in accordance with the appropriate instructions for the cement to be used.

⑤ Cement Application

Apply resin cement for CAD/CAM hybrid ceramics block inside the crown in accordance with the proper operational instructions.