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

Function image

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

Function image

To insert shank part of bur into handpiece

Characteristics image

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

Characteristics image

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

Functions image

To open tooth for a restoration
To remove caries

Characteristics image

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

Functions image

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

Functions image

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

Characteristics image

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

Functions image

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

Characteristics image

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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