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Class Information
Number: 433/153
Name: Dentistry > Apparatus > Hand manipulatable implement > Having relatively movable work engaging surfaces
Description: Apparatus including a plurality members, each having a work contacting face, and structure connecting the members which permits relative displacement between the work contacting faces.










Sub-classes under this class:

Class Number Class Name Patents
433/156 Including contoured work shaping surface 4
433/157 Pivoted 15
433/162 Resiliently biased 11
433/161 Screw actuated 11
433/154 Three or more relatively movable coacting surfaces 4


Patents under this class:

Patent Number Title Of Patent Date Issued
8439679 Extractor for broken tooth root May. 14, 2013
8252213 Denture flask mould press and method of use Aug. 28, 2012
7367804 Endodontic instrument extractor tool manufactured from a shape memory material and related kits and methods May. 6, 2008
7284983 Matrix band retainer Oct. 23, 2007
7175432 Dental contact matrix limited Feb. 13, 2007
7128571 Orthodontic tool Oct. 31, 2006
7100476 Torque wrench for dental implants Sep. 5, 2006
7025592 Bone-dislocating device Apr. 11, 2006
6652277 Dentist's matrix contact instrument Nov. 25, 2003
6589053 Low profile matrix band retainers Jul. 8, 2003
6261095 Dental tool for tooth restoration Jul. 17, 2001
5755573 Dental post extractor May. 26, 1998
5599186 Implement for extracting dental bridges and the like Feb. 4, 1997
5411396 Method of and implement for extraction of dental prostheses May. 2, 1995
5385471 Cerec inlay holder and inserter Jan. 31, 1995
5197877 Implement for extracting dental crowns, bridges and the like Mar. 30, 1993
5197878 Clamp for removing a dental prosthetic Mar. 30, 1993
5181849 Articulating paper holder Jan. 26, 1993
5015185 Device for extracting dental prostheses, crowns and the like May. 14, 1991
4923399 Dental instrument May. 8, 1990
4884581 Oral hygiene tongue holder Dec. 5, 1989
4725233 Device for removing crowns, bridges, and similar structures from the stumps of teeth Feb. 16, 1988
4230454 Tooth extractor Oct. 28, 1980
4202103 Matrix band guide and matrix retainer device May. 13, 1980
4196520 Method of removing a crown from a tooth Apr. 8, 1980











 
 
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