• Acerdent diamond dental burs are sold non-sterile and must be sterilized prior to first use and between subsequent uses in accordance with the instructions on page 2 of this instructions for use leaflet.
• Do not apply forces greater than those specified in the instructions section below.
• Do not use Acerdent diamond dental burs as levers and/or at incorrect angulations.

• ACERDENT diamond dental burs are intended for:

  • Preparation of the cavity (preservative)
  • Preparation of the stumps (prosthetic)
  • Finishing of the cavity edges and repair work
  • Polishing of the repairs

Sterilization and
Reprocessing

• Ensure the hand-piece and cooling nozzles are in perfect condition.
• Visually inspect the Acerdent diamond dental bur to check the condition of the diamond cutting edges and concentricity.
• Insert the bur carefully and without excess force into the hand-piece.
• Before use, check that the bur shank locks perfectly with the hand-piece.
• Use Acerdent diamond burs with suitable cooling methods to ensure correct cooling of the treatment site.
• Use aspiration techniques which do not compromise cooling efficiency.
• Bring the tool to the necessary speed (see the “Table of Speeds” below) before approaching the treatment site.
• Use a pressure force between 0.3 – 2 N. Under no circumstances must greater pressures be applied

• Acerdent diamond dental burs are intended to be reuseable but must be reprocessed and sterilized in accordance with the instructions on page 2 of this leaflet prior to first use and between subsequent uses.
• If signs of wear or damage are noted at visual inspection prior to use the bur should be disposed of in an appropriate sharps container complying with BS 7320:1990 “Specification for sharps containers” or in accordance with local policy.

Diameter of the
working piece(mm)

Maximum speed
(rpm)

Recommended speed range
(rpm)

0.8-1.0

450,000

100,000-220,000

1.2-1.4

450,000

70,000-220,000

1.6-1.8

450,000

55,000-160,000

2.1-2.3

300,000

40,000-120,000

2.5-2.7

160,000

35,000-110,000

2.9-3.1

140,000

30,000-95,000

3.3-4.0

120,000

25,000-75,000

4.2-5.0

95,000

15,000-60,000

WARNINGS

• Acerdent diamond dental burs are sold non-sterile and must be sterilized prior to first use and between subsequent uses in accordance with the following instructions.
• Care must be taken when handling contaminated burs. Gloves and eye protection should be worn.
• All packaging must be removed prior to processing.
• Acerdent diamond dental burs may be damaged by alkaline and acidic detergents. Always use a pH neutral detergent solution for cleaning.
• Acerdent diamond dental burs should not be exposed to temperatures in excess of 140°C.

Limitations on
reprocessing

• Repeated reprocessing in line with these instructions has only minimal effect on Acerdent diamond dental burs. End of useful life is normally determined by wear and attrition during use rather than by the effects of reprocessing. Burs should be visually inspected for signs of wear prior to reuse.

Point of use:

• Remove from packaging prior to first sterilization.
• Remove any excess soil with a disposable wipe.
• Handle carefully to protect fine burs from damage.
• Burs should be reprocessed as soon as possible after use.

Preparation for
decontamination

• Disassembly is not required.

• Automated cleaning is the preferred method.
• Use a validated washer/disinfectors complying with HTM 2030 (UK only) or national equivalents. Use only appropriate cleaning agents compatible with both the burs and the equipment. Follow the instructions issued by both the equipment and cleaning agent suppliers.
• Validated ultrasonic baths with appropriate cleaning agents may be used.
• After cycle completion visually inspect for removal of soil. Repeat cycle if necessary.

• Automated cleaning is the preferred method.
• Manual cleaning by careful brushing/wiping using absorbent disposable wipes/brushes and pH neutral cleaning agents followed by thorough rinsing with running potable water and drying may be used in exceptional circumstances.
• Always inspect visually to confirm removal of soil. Repeat cleaning if necessary.

• Sterilization by exposure to moist heat, rather than disinfection, is the recommended method for the reprocessing of the burs.

Drying:

• Dry by wiping with absorbent disposable wipes or dry heat. Do not expose burs to temperatures in excess of 140°C.
• Burs left wet may corrode or stain.

Maintenance,
Inspection and
Testing:

• Visually inspect to ensure contamination has been removed from all burs.
• Visually inspect for signs of damage and wear. Cutting edges should be free of defects and burs with elongated shapes should be free from distortion.
• Discard damaged or corroded burs.
• Some surface discoloration or dulling may routinely occur after moist heat sterilization. This does not affect performance.

Packaging:

• For wrapped burs an autoclave with a validated pre-vacuum cycle capability should be used.
• An autoclave cycle including only a post sterilization vacuum for drying purposes is not suitable for sterilizing wrapped burs.
• Burs may be processed in dedicated instrument trays or in general purpose sterilization trays in accordance with the manufacturer’s instructions. Cutting edges should be protected.

• • Use only a validated pre-vacuum autoclave for wrapped burs complying with HTM 2010 (UK only) or national equivalents.
  • Do not expose the burs to temperatures in excess of 140°C
  • The following time/temperature combinations are acceptable:

  Sterilization temperature (°C) Minimum time at temperature (min.) Minimum Maximum   134 137 3 132 137 8 126 129 10 121 124 15

  • Do not exceed the autoclave manufacturer’s stated maximum load.

• Take appropriate precautions to avoid recontamination prior to next use.