DE19854223C2 - Spitzenposition-Ermittlungsgerät - Google Patents
Spitzenposition-ErmittlungsgerätInfo
- Publication number
- DE19854223C2 DE19854223C2 DE19854223A DE19854223A DE19854223C2 DE 19854223 C2 DE19854223 C2 DE 19854223C2 DE 19854223 A DE19854223 A DE 19854223A DE 19854223 A DE19854223 A DE 19854223A DE 19854223 C2 DE19854223 C2 DE 19854223C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- measuring
- electrode
- measuring electrode
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 28
- 210000004262 dental pulp cavity Anatomy 0.000 claims description 21
- 210000000214 mouth Anatomy 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
- A61C19/041—Measuring instruments specially adapted for dentistry for measuring the length of the root canal of a tooth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
- A61C19/042—Measuring instruments specially adapted for dentistry for determining the position of a root apex
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10237262A JP2000060878A (ja) | 1998-08-24 | 1998-08-24 | 根尖位置検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19854223A1 DE19854223A1 (de) | 2000-03-09 |
| DE19854223C2 true DE19854223C2 (de) | 2001-05-17 |
Family
ID=17012808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19854223A Expired - Lifetime DE19854223C2 (de) | 1998-08-24 | 1998-11-24 | Spitzenposition-Ermittlungsgerät |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6059569A (enExample) |
| JP (1) | JP2000060878A (enExample) |
| DE (1) | DE19854223C2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8920166B2 (en) | 2007-03-16 | 2014-12-30 | J. Morita Manufacturing Corporation | Root canal length measuring apparatus and root canal therapy apparatus |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000060878A (ja) * | 1998-08-24 | 2000-02-29 | Toei Denki Kk | 根尖位置検出装置 |
| US7713063B2 (en) * | 2001-05-03 | 2010-05-11 | Lee Charles Q | Dental training device |
| US6988894B2 (en) * | 2001-05-03 | 2006-01-24 | Lee Charles Q | Dental training device |
| US6845265B2 (en) * | 2002-07-26 | 2005-01-18 | Aseptico, Inc. | Systems and methods for locating a tooth's apical foramen |
| US7758342B2 (en) * | 2002-07-26 | 2010-07-20 | Aseptico, Inc. | Detecting and indicating a proximity of a dental instrument to a tooth apical foramen |
| US6968229B2 (en) * | 2003-05-06 | 2005-11-22 | Ormco Corporation | Apex locating system |
| JP4511465B2 (ja) * | 2003-06-11 | 2010-07-28 | 藤栄電気株式会社 | 根尖位置検出装置 |
| SE0401910D0 (sv) * | 2004-07-21 | 2004-07-21 | Jonas Martynaitis | Apical constriction locator |
| BRPI0504065A (pt) * | 2005-09-06 | 2007-05-22 | Ronaldo Piazzalunga | coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico |
| JP2008110141A (ja) * | 2006-10-31 | 2008-05-15 | Morita Mfg Co Ltd | 歯科用診断器、これを用いた根管治療装置、根管治療装置用の表示装置及び歯科用診療台 |
| US20100239999A1 (en) * | 2007-06-21 | 2010-09-23 | Haim Rozenboim | Multi-frequency apex locator |
| JP2009011470A (ja) * | 2007-07-03 | 2009-01-22 | Morita Mfg Co Ltd | 歯科用診断器及び、これを用いた歯内治療装置，歯科用診療台 |
| DE102007043366A1 (de) * | 2007-09-12 | 2009-03-19 | Degudent Gmbh | Verfahren zur Positionsbestimmung eines intraoral messenden Messgerätes |
| US8343079B2 (en) * | 2007-10-18 | 2013-01-01 | Innovative Surgical Solutions, Llc | Neural monitoring sensor |
| US20090130623A1 (en) * | 2007-11-20 | 2009-05-21 | Techdent Technologies Ltd. | Method and apparatus for effecting dental measurements using a body-contacting electrode |
| KR101483201B1 (ko) * | 2008-04-07 | 2015-01-15 | 메일레퍼 인스트러먼츠 홀딩 에스에이알엘 | 치근관에서 근단 위치를 결정하는 방법 및 장치 |
| CN102762166B (zh) * | 2009-11-06 | 2014-12-03 | 纽约州立大学研究基金会 | 用于检测未成洞早期龋损的装置 |
| JP6035390B1 (ja) * | 2015-08-11 | 2016-11-30 | 藤栄電気株式会社 | 根管から歯根膜腔に伸びた側枝の位置とその開口方向を検出する方法、装置及びその方法をコンピュータに実行させるためのプログラムを記録したコンピュータ可読記録媒体 |
| JP6634104B2 (ja) * | 2018-01-30 | 2020-01-22 | 藤栄電気株式会社 | 側枝検出装置、側枝検出用プローブ、側枝検出方法およびそのプログラム |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4126753C2 (de) * | 1991-08-14 | 1997-04-10 | Morita Mfg | Vorrichtung zum Erkennen einer Apikalposition |
| DE4139424C2 (de) * | 1991-11-27 | 1997-07-31 | Morita Mfg | Wurzelkanal-Meßgerät |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02271854A (ja) * | 1989-04-14 | 1990-11-06 | Takeshi Saito | 歯科用根管処置装置 |
| JP2000060878A (ja) * | 1998-08-24 | 2000-02-29 | Toei Denki Kk | 根尖位置検出装置 |
-
1998
- 1998-08-24 JP JP10237262A patent/JP2000060878A/ja active Pending
- 1998-11-12 US US09/190,829 patent/US6059569A/en not_active Expired - Lifetime
- 1998-11-24 DE DE19854223A patent/DE19854223C2/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4126753C2 (de) * | 1991-08-14 | 1997-04-10 | Morita Mfg | Vorrichtung zum Erkennen einer Apikalposition |
| DE4139424C2 (de) * | 1991-11-27 | 1997-07-31 | Morita Mfg | Wurzelkanal-Meßgerät |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8920166B2 (en) | 2007-03-16 | 2014-12-30 | J. Morita Manufacturing Corporation | Root canal length measuring apparatus and root canal therapy apparatus |
| DE102008012677B4 (de) | 2007-03-16 | 2021-11-04 | J. Morita Mfg. Corp. | Vorrichtung zur Messung der Länge eines Wurzelkanals; Vorrichtung zur Behandlung des Wurzelkanals |
Also Published As
| Publication number | Publication date |
|---|---|
| US6059569A (en) | 2000-05-09 |
| JP2000060878A (ja) | 2000-02-29 |
| DE19854223A1 (de) | 2000-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| R071 | Expiry of right |