- Product Details
- Clinical Technique #1
- Clinical Technique #2
- Technical Details
- Configurations
- Resources
838M is a diamond round cylinder bur with modified shoulder and long neck ideal for micropreparation.
Specifications:
- Size: 007
- Size Ø: 007 1/10 mm
- L1 in mm: 2.7 mm
- Maximum Speed: 300,000
Indications for Use
Cavity preparation.
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Small instruments sizes (838M/830RM) are used for treatment of fissure caries, as well as for substance-preserving opening of larger, deep carious defects.
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Due to the elliptic shape of figures 953M/953AM, cavities for undermining caries can be excavated in an ampoule-like shape.
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The special shape and the diamond-coated neck of the instruments 830M/953M/953AM enable you to realise rounded surfaces with undercuts, particularly when trimming inner proximal areas.
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With the adhesive restoration technique, cavity margins should be rounded in order to equilibrate tension between restoration and hard tooth substance. This can perfectly be done with the pear-shaped instrument (830M).
- Initial situation: Undermining fissure and proximal caries in tooth 46.
- Minimally invasive opening and detection of the size of the carious defect with instrument 889M.
- Excavation of minimally undermining fissure caries with the pear-shaped instrument 830RM.FG.009.
- Optimal vision even in deep areas due to the extremely thin instrument necks permitting good flow of coolant. Preparation with instrument 953M.FG.014.
- Completed undermining cavity in tooth 46, occlusal view.
- Aesthetic and anatomically perfect composite restoration in teeth 45 and 46.
Shank Type
Diamond Grit Size Legend
Maximum Permissible Speed Legend
Friction Grip Shank:
- 838M.FG.007: 5-Pack (Item Number: 1901486)