INSTRUMENTS AND TRAY SYSTEMS
Help!
|
|
||||
|---|---|---|---|---|---|
| The working end may be | point,blade,or nib
🗑
|
||||
| blade may be | flat or curved and rounded or cutting edge
🗑
|
||||
| the cutting edge | is formed by a bevel on the working end of the instrument.
🗑
|
||||
| the part of the dental hand instrument. | handle,shank,working end
🗑
|
||||
| which part of the instrument actually performs the specific function of the instrument | working end
🗑
|
||||
| formula was developed to standardize the exact size and angulation of an instrument | black's
🗑
|
||||
| following are cutting instruments | chisel,excavator,angle former
🗑
|
||||
| following are noncutting instruments | carver,carrier,file
🗑
|
||||
| black's three number formula | -the first number is the width of the blade,-the second number is the measurement of length of blade,-third number provides measurement of angle of the blade to the long axis of the handle
🗑
|
||||
| hand cutting instruments | are used to assist in the design of the cavity preparation
🗑
|
||||
| chisels | are used to shape and plane enemal and dentin walls of the cavity preparation
🗑
|
||||
| hatchet | are paired left and rigth and used in a downward motion to refine the cavity walls
🗑
|
||||
| Hoe | is used in the a pulling motion and shape the floor of the cavity preparation
🗑
|
||||
| gingival margin trimmer | is similar to the HATCHET in regard to the position of the position ofthe blade to the handle,is used to bevel the gingival margin wall of the cavity preparation
🗑
|
||||
| angle former | is used in downward pushing motion to form and define point angles and to shapen line.
🗑
|
||||
| excavator | is used to remove carious material,has a cutting edge that is rounded all the way
🗑
|
||||
| basic | examination setup instruments are common to all tray setups
🗑
|
||||
| basic examination setup instrument | mouth mirror,explorer,cotton plier
🗑
|
||||
| type of mouth mirror | are the plane surface,front surface and concave surface
🗑
|
||||
| what the operator use to view area of the mouth not visible with direct vision | indirect vision
🗑
|
||||
| the mirror is used to direct the light to reflect and detect fractures in tooth | transillumination
🗑
|
||||
| which instrument working end is thin,sharp pint of flexible steel | exporer
🗑
|
||||
| cotton plier | are used to transport and manipulate various material,they are also available locking and nonlocking handles
🗑
|
||||
| the probe | workin end consists of rounded or blunted blade that is marked in millimiters
🗑
|
||||
| amalgam carrier | designed to carry and dispense amalgam into cavity preparation
🗑
|
||||
| condensers | are used to remove excess restorative material and to carve tooth anatomy in the restoration
🗑
|
||||
| knives are used to trim excess filling material is | finishing
🗑
|
||||
| spatulas are used to mix composite resin material is? | plastic
🗑
|
||||
| characteristic of crowns and collar scissors are | trim matrix,cut retraction cord,trim amalgam
🗑
|
||||
| the neck of the bur is | inserted into the handpiece
🗑
|
||||
| the head of the bur is | the working end of the bur
🗑
|
||||
| cutting burs have | 6 cutting blades or surfaces
🗑
|
||||
| there are | 9 basic cutting bur shapes
🗑
|
||||
| Diamond burs or stones | are used for rapid reducing tooth structure during cavity preparation ,polishing and finishing composite restorations and occlusial
🗑
|
||||
| abrasives | are nonbladed instruments used finish and polish restoration
🗑
|
||||
| following instruments have abrasive material that may be made of garnet,diamond and quartz | discs
🗑
|
||||
| diamond discs | are used for rapid cutting and have diamond particles bonded to both sides of steel discs.
🗑
|
||||
| working end of the handpiece is | where burs,stones,and attachments are held
🗑
|
||||
| following will reducefrictional heat from the use of the high speed | -air,water,air-water spray
🗑
|
||||
| the chuck | holds the shank portion of the bur in place
🗑
|
||||
| what will activate and control the speed of the handpiece | rheostat
🗑
|
||||
| the low-speed handpiece is often called | straight handpiece
🗑
|
||||
| at the dental unit,the low -speed handpiece will not | polish appliances
🗑
|
||||
| which of the following cannot be sterilized | sandpaper discs
🗑
|
||||
| high-speed handpieces operate at | 400,000 rpm
🗑
|
||||
| preset tray | provides an efficient means of transportating instruments
🗑
|
||||
| the wedelstaedt chisel | is used for class III or IV cavity preparation
🗑
|
||||
| dental handpiece is used for | removing dental decay,polishing teeth,polishing and finishing restoration except probing
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
fifisolange