How to Choose the Dental Burs

Dental Burs USER GUIDE:

■  Ensure that the correct bur is selected, (shape, size and grit type) according to the preparation being carried out.

■  Ensure  that all handpieces,  high  speed  and contra-angles, are in perfect working order .

■  Ensure  that the bur’s shank  is fully inserted and adequately gripped by the handpiece.

■  Ensure that you have selected the correct speed to ensure  optimum  performance  and strictly obser ve the recommended  speed constraints as  shown   below.  Only  apply  the  diamond grit  to the  surface,  once  the  recommended operational speed has been reached.

■  Ensure  that   preparation work    is   carried out without exerting excess  pressure. The recommended               contact pressure      range  is
0.3–2N.  Excess  pressure will adversely affect the outcome of your preparation.

■  Ensure  that you use  an adequate  supply  of water in order to prevent damaging  the tooth structure, pulp and any adjacent fillings. To achieve   this,  Crosstech   recommends   high - speed  handpieces   with  three coolant  spray jets, which spray the coolant along the entire length of the instrument’s cutting surface. The minimum  coolant supply  is 50ml/min.   Note that burs with lengths in excess of 21mm and a head  exceeding  2mm  in diameter require additional cooling.

■   Avoid  using  blunt,  damaged,   bent  or  non - concentric diamond instruments. They will adversely  affect  your preparation  work  and can damage the handpiece turbine.

 

Dental Burs R e c o m m e n d e d   S p e e d s

Head Diamet
in 1/10 mm

er Speed Range
(min -1)

Max. Speed
(min -1)

008–010

75,000–150,000

450,000

012–014

60,000–110,000

450,000

016–018

45,000–88,000

450,000

021–023

40,000–75,000

300,000

025–027

30,000–65,000

160,000

029–031

25,000–56,000

140,000

033–040

22,000–45,000

120,000

042–050

20,000–37,000

95,000

055–065

17,000–32,000

80,000

■ All diamond burs must be disinfected and sterilized prior to use.
■ After use, diamond instruments must be immediately immersed in a suitable cleaning agent. Use  a cleaning  agent  that contains  a corrosion inhibitor. Do not use strong acidic or alkaline disinfectants  as these will adversely affect  the  instruments.   If  necessar y,  clean by mechanical  means  such  as  with a brass bristled brush ensuring that absolutely no residue is left.
■  Crosstech diamond   burs  may   be  cleaned ultrasonically  and  sterilized  in an autoclave, chemiclave or in hot air .
■  After sterilization, keep burs in our dust free bur blocks ready for re-use.

 

Important:     To  prevent  infectious  germs  from spreading, please carefully dispose of instruments contaminated with blood or saliva.

 

 

G R I T

I S O N O .

C O D E

µ m

■ Standard

524

 

105–125

■ Coarse

534

C

150

■ Fine

514

F

55

■ Extra Fine

504

P

25