Burs and rotary attachments for handpieces

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Burs and rotary attachments for handpieces

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Pictured: MIDWEST Bur. Photo courtesy DENTSPLY International, York, PA.

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Bur

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To be used in high-speed or low-speed handpiece

Characteristics image

Parts:
1. Head: Part of bur that cuts, polishes, or finishes

Available in a variety of shapes and sizes
2. Neck: Part of bur that tapers to connect shank to head
3. Shank: Part of bur that is inserted into the handpiece
• Length and style of shank will vary depending on handpiece used.
• Bur with straight, long shank fits into straight slow-speed handpiece.
• Bur with latch-type shank fits into contra-angle slow-speed handpiece (friction grip bur shown).
• Friction grip bur fits into high-speed handpiece; chuck, lever, or push button tightens bur into the handpiece.
• Bur with long shank used for surgical procedures

 

imageBurs must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Bur shanks

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To insert shank part of bur into handpiece

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Fit a variety of shanks into different styles of handpiece
Working or cutting end of the bur could be the same style and/or size, but shank could be different according to handpiece used.

Example:

1. No. 2 round bur in straight shank
2. No. 2 round bur in latch-type shank
3. No. 2 round bur in friction grip shank
Long shank used for surgical procedures

 

imageBurs must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Pictured: MIDWEST Round Bur. Photo courtesy DENTSPLY International, York, PA.

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Round bur

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To remove caries from tooth structure
To open tooth for endodontic treatment
To place retention in cavity preparation
To use for many procedures on a tooth

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Range of sizes
Commonly used sizes: No. 1⁄4 to No. 10

Practice notes image

Bur is inserted and secured in a handpiece.
Type of handpiece determines type of shank used.

 

imageRound Bur must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Pictured: MIDWEST Pear-Shaped Bur. Photo courtesy DENTSPLY International, York, PA.

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Pear-shaped bur

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To open tooth for a restoration
To remove caries

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Frequently used in preparation of composite restorations
Range of sizes
Commonly used sizes: No. 330 to No. 333
Bur head available in long

Example:

 ​No. 333L

Practice notes image

Bur is inserted and secured in a handpiece.
Type of handpiece determines type of shank used.

 

imagePear-Shaped Bur must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Pictured: MIDWEST Inverted Cone Bur. Photo courtesy DENTSPLY International, York, PA.

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Inverted cone bur

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To remove caries
To establish retention in tooth for cavity preparation

Characteristics image

Range of sizes
Commonly used sizes: No. 331⁄2, No. 34, No. 37, No. 39

Practice notes image

Bur is inserted and secured in a handpiece.
Type of handpiece determines type of shank used.

 

imageInverted Cone Bur must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Pictured: MIDWEST Straight Fissure Bur—Plain Cut. Photo courtesy DENTSPLY International, York, PA.

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Straight fissure bur—plain cut

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To cut cavity preparation
To form inner walls of cavity preparation
To place retention grooves in walls of cavity preparation

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Cutting part of bur—Has parallel sides
Range of sizes—Commonly used: No. 56, No. 57, No. 58
May have short or long (L) shank for adaptation to a variety of cavity preparations

Examples of short- and long-shank friction-grip burs:

 ​​No. 56S, No. 56L

Practice notes image

Bur is inserted and secured in a handpiece.
Type of handpiece determines type of shank used.

 

imageStraight Fissure Bur—Plain Cut must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Pictured: MIDWEST Tapered Fissure Bur—Plain Cut. Photo courtesy DENTSPLY International, York, PA.

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Tapered fissure bur—plain cut

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To cut cavity preparation
To form angles in walls of cavity preparation
To place retention grooves in walls of cavity preparation

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Cutting part of bur—Has tapered sides
Range of sizes—Commonly used: No. 168, No. 169, No. 170, No. 171
May have short (S) or long (L) shank for adaptation to a variety of cavity preparations

Examples of short- and long-shank friction-grip burs:

 ​​No. 168S, No. 171L

Practice notes image

Bur is inserted and secured in a handpiece.
Type of handpiece determines type of shank used.

 

imageTapered Fissure Bur—Plain Cut must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. A chemical/steam indicator device should be included in the wrapping, or the used bur must be disposed of in a Sharps container.

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Feb 3, 2015 | Posted by in Dental Hygiene | Comments Off on Burs and rotary attachments for handpieces
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