Techniques | NTI Guide Pin Diamonds
Keep it uniform
These guide pin diamonds help create preparations with precise, uniform depth, and defined finish lines.
Information provided by Axis Dental Corp.
| • The pin is located at the tip of each diamond • Eliminates lipping that occurs with chamfer preparations • Provides controlled preparation for uniform cutting depth • Limits the diamond’s depth of cut
• Available in Friction Grip only and sold in packs of five 800-355-5063
axisdental.com |
|
| |
NTI Guide Pin Diamonds are designed to provide an easy, predictable method for clinicians to achieve accurate preparations, even when working with the most demanding cases.
A pin is located at the tip of each diamond, limiting the diamond’s depth of cut and eliminating the lipping that’s common with chamfer preparations. This leads to precise, uniform depth—as well as a well-defined finish line that lab technicians can clearly see.
The uncoated guide pins provide clinicians with a solution to visibility problems at transitional line angles and distal surfaces. Clinicians can use the pin as an “extra hand” instead of trying to see the depth of cut, the location of the finish line, and the angle of the prep all at the same time. With these pins, clinicians can first make a depth of cut, set the taper of the prep, and then move the diamond circumstantially around the tooth while maintaining contact of the pin against the root surface.
The guide pin diamonds can be used at normal FG speeds of 300,000 to 500,000 rpms. They come in three shapes: beveled cylinder, round end taper, and round end cylinder.
The following illustrates how these guide pin diamonds can be used for successful crown preparations.
1. The 879SE beveled cylinder, featuring a safe end tip and a long parallel shape, can be used for veneer preparations or for breaking contact for any crown or bridge restoration (Fig. 1).
2. The 998 round-end tapers can be used on traditional PFMs, a Captek crown, Procera and other CAD/CAM restorations, and full cast gold crowns. The 021 and 023 sizes in a supercoarse grit provide sufficient reduction in the gingival third of the tooth (Fig. 2). Fine diamonds in the same sizes help create a well-defined, smooth finish line (Fig. 3). Available in supercoarse and fine, the 016 can also be used to prep on root surfaces.
3. Indicated for full porcelain crowns, the 998-026 and 999-021 are wider, rounded end taper and cylinder guide pin diamonds (Fig. 4). They provide a 0.8 mm depth of reduction at the margin, giving clinicians a controlled, uniform preparation.
Printer Friendly
Email Article
