WO2000018315A1 - Dental instrument - Google Patents
Dental instrument Download PDFInfo
- Publication number
- WO2000018315A1 WO2000018315A1 PCT/SE1999/001483 SE9901483W WO0018315A1 WO 2000018315 A1 WO2000018315 A1 WO 2000018315A1 SE 9901483 W SE9901483 W SE 9901483W WO 0018315 A1 WO0018315 A1 WO 0018315A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- caries
- instrument
- edges
- scraping
- longitudinal
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
Definitions
- the present invention relates to a dental instrument for removing caries attacked dentine.
- the two-component liquid consists of a sodium hypochlorite component and a nitrogen-containing component.
- the nitrogen-containing component consists in this case of three nitrogen-containing compounds with different charge states in its side chain; one neutral, one with a negative net charge and one with a positive net charge.
- the biological treatment method is usually not painful at all. Neither does it require any investments in expensive equipments . It only requires an excavator instrument to remove softened carious dentine material.
- the instrument specifically made for removing softened carious dentine is previously disclosed in SE 96.04626-3.
- This instrument makes it possible to manually scrape in different directions and the scraping edges of the tool head of the instrument are adapted to all types of caries attacks.
- the instrument comprises a star-shaped tool head having four symmetrically arranged scraping edges with a curved, preferably spherical, outer contour (periphery) for scraping away softened carious substance.
- the instrument can also be used for catching drops of the liquid solution used for the chemical-mechanical treatment method and carry these drops to the site of the caries at- tacked tooth part. This is possible because of the open, empty spaces which are located between the scraping edges of the tool head of the instrument and this function of the instrument is facilitated as the liquid solution which is used has a viscous, gel form.
- the instrument comprises a tool head having one or more longitudinal scraping edges with a curved outer contour and transverse grooves so that a number of scraping edges is formed also transverse to the curved, longitudinal edges.
- the lateral edges have a V-shaped section so that the longitudinal curved scraping edge is substantially forming a sawtooth geometry.
- figure 1 is an overall view of the instrument.
- figure 2 illustrates the tool head more in detail.
- the instrument generally com- prises two tool members 1 , 2 with a grip member 3 therebetween.
- the two tool members are angulated in order to facilitate the use of the instrument in the mouth of a patient.
- the two tool heads 4,5 have a substantially, spher- ical outer contour formed by a number of scraping edges extending radially outwards.
- the scraping edges are substantially longitudinal, i e they are extending in the longitudinal direction of the instrument, and curved, preferably circular, the tool heads are forming a star- shaped geometry with a substantially spherical outer contour.
- the instrument according to this invention has a number of transverse grooves 6 on the longitudinal edges 7 so that a number of cutting edges 8 are formed also transverse to the longitudinal edges 7, which are parallell to the longitudinal axis 9 of the instrument, see figure 2.
- the tool head has four longitudinal scraping edges 7 and four transverse grooves 6.
- the grooves 6 are V-shaped so that the scraping edges 7 are forming a sawtooth geometry. This means that each of the scraping edges 7 also has three scraping edges 8 extending transverse to the longitudinal edge 7.
- transverse scraping edges 8 By means of said transverse scraping edges 8 a hard, car- ies-attacked dental surface is more easily roughened, for instance by small back-and-forward movements, so that the used solution could more rapidly soften the caries . Otherwise the instrument is used in the same way as the previous instruments for application of the used solution through the spaces between the scraping edges and then for removing the carious, softened tooth substance.
- the instrument according to the invention could have more or less than four longitudinal scraping edges 7 and more than four transverse grooves 6.
- the tool head will be more "solid", like a ball with a wafer or rutile surface structure, or like a spherical spike head.
- Such a design might be more useful for roughening a hard dental surface, but as soon as the carious tooth substance is soft enough, the previously known type of instrument might then be required for removing the softened caries substance.
- both or only one of the tool heads 4 , 5 might be designed according to the invention.
- one of the tool heads could be designed with transverse grooves according to the invention, while the other tool head could be designed according to the previously mentioned patent SE 96.04626-3.
- the tool head instead of the design illustrated in figure 1, could have a shaft 10 connectable to a machine instrument of the type which is described in SE 98.02868-9.
- a machine instrument provides a more controlled scraping movement which makes a tool head according to this invention more efficient.
- the tool head could be included in a set of different instruments to be used in the chemical-mechanical treatment method and which then could be connected to one and the same machine instrument.
- transverse grooves could have another pro- file, U-formed, rectangular etc. Then the cutting angle of the transverse edges 8 will be more sharp.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000571838A JP2002525160A (en) | 1998-09-10 | 1999-08-30 | Dental instruments |
AU62353/99A AU6235399A (en) | 1998-09-10 | 1999-08-30 | Dental instrument |
EP99949495A EP1109508A1 (en) | 1998-09-10 | 1999-08-30 | Dental instrument |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9803057A SE512810C2 (en) | 1998-09-10 | 1998-09-10 | Dentist instrument with scraping edges to remove caries damaged dentin |
SE9803057-0 | 1998-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000018315A1 true WO2000018315A1 (en) | 2000-04-06 |
Family
ID=20412541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1999/001483 WO2000018315A1 (en) | 1998-09-10 | 1999-08-30 | Dental instrument |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1109508A1 (en) |
JP (1) | JP2002525160A (en) |
AU (1) | AU6235399A (en) |
SE (1) | SE512810C2 (en) |
WO (1) | WO2000018315A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1844727A1 (en) | 2006-04-12 | 2007-10-17 | 3M Innovative Properties Company | Dental instrument for removing solely unremineralisable carious dentin |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998029053A1 (en) * | 1996-12-17 | 1998-07-09 | Mediteam Dentalutveckling I Göteborg Ab | Dental instrument |
-
1998
- 1998-09-10 SE SE9803057A patent/SE512810C2/en not_active IP Right Cessation
-
1999
- 1999-08-30 WO PCT/SE1999/001483 patent/WO2000018315A1/en not_active Application Discontinuation
- 1999-08-30 EP EP99949495A patent/EP1109508A1/en not_active Withdrawn
- 1999-08-30 AU AU62353/99A patent/AU6235399A/en not_active Abandoned
- 1999-08-30 JP JP2000571838A patent/JP2002525160A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998029053A1 (en) * | 1996-12-17 | 1998-07-09 | Mediteam Dentalutveckling I Göteborg Ab | Dental instrument |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1844727A1 (en) | 2006-04-12 | 2007-10-17 | 3M Innovative Properties Company | Dental instrument for removing solely unremineralisable carious dentin |
EP2004088A2 (en) * | 2006-04-12 | 2008-12-24 | 3M Innovative Properties Company | Dental instrument and method of use |
EP2004088A4 (en) * | 2006-04-12 | 2013-03-13 | 3M Innovative Properties Co | Dental instrument and method of use |
Also Published As
Publication number | Publication date |
---|---|
AU6235399A (en) | 2000-04-17 |
SE9803057D0 (en) | 1998-09-10 |
SE512810C2 (en) | 2000-05-15 |
JP2002525160A (en) | 2002-08-13 |
EP1109508A1 (en) | 2001-06-27 |
SE9803057L (en) | 2000-03-11 |
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