- Product Details
- Clinical Technique
- Technical Details
- Configurations
- Resources
Komet's ZR8379L is an egg-shaped diamond bur with a long neck. For grinding all types of ceramics including zirconia. It is a part of ZR-Diamonds™ series.
About ZrO2 | ZR-Diamonds™
Offering a combination of strength, durability, and outstanding esthetics, all-ceramics are a popular restorative choice. All-ceramics are, however, exceptionally difficult to manage and cut with conventional diamond instruments.
ZR-Diamonds have been the premier choice for working with modern high-strength ceramics since their introduction into the dental marketplace. Unmatched in versatility and performance, ZR-Diamonds address these real, everyday challenges by providing superior results quickly and with minimal effort. Offered in a range of shapes and sizes, ZR-Diamonds provide an effective, efficient, and easy-to-use option for adjusting high-strength ceramic restorations. Other features and benefits include:
- Permanently bonded, high-quality diamond particles
- Densely packed diamond layer
- Outstanding durability & extended service life
- Optimal material-reduction capacity
- Extensive range of shapes and sizes to meet all needs
Indications for Use
Crown and bridge technique.
Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here:
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Slight adaption of the ZrO₂ crown with the ZR862.FG.016
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Quick trepanation with the round special abrasive ZR6801.FG.010/014/023.
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For cutting adhesive bonded, all-ceramic crowns, we recommend Jackie (4ZRS). This instrument has to be applied at an angle of 45° to the crown.
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Particularly in the case of ahesively bonded all-ceramic restorations, the separation joint should also encompass the incisal edge or the axial wall, respectively the occlusal surface in the lateral tooth area.
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To remove the restoration, it has to be widened until it fractures. This can be performed with a lever or a Plaert crown widening pliers.
To grind down residual fragments, it is recommended to use the 4ZR.FG.012/014.
Shank Type
Diamond Grit Size Legend
Maximum Permissible Speed Legend
ZR8379L.FGL.014: 5-Pack (Item Number: 1901990)
ZR8379L.FGL.023: 5-Pack (1901991)