instruments third lec

define rake angle

enumerate factors affecting the cutting efficiency of the bur

Burnishing Burs have more than 8 blades

• True
• False

positive rake angle indicate shorter functional life

• true
• false

positive rake angle tail the face of the blade

• true
• false

which of the following is the most effective rake angle

• positive
• negative
• radial
• none of the above

the bur design depend on

which of the following is false about cross cutting

• Increase chip space
• Decrease clogging tendency
• increase heat generation
• Increase number of blades without undue weakening of blades

cross cutting disadvantage is

which bur is the most efficient end cut

• pear
• fissure
• inverted
• round