BRPI0504065A - coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico - Google Patents
coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈnticoInfo
- Publication number
- BRPI0504065A BRPI0504065A BRPI0504065-5A BRPI0504065A BRPI0504065A BR PI0504065 A BRPI0504065 A BR PI0504065A BR PI0504065 A BRPI0504065 A BR PI0504065A BR PI0504065 A BRPI0504065 A BR PI0504065A
- Authority
- BR
- Brazil
- Prior art keywords
- spectral attenuation
- attenuation coefficient
- caer
- foramen
- exponential
- Prior art date
Links
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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0534—Measuring electrical impedance or conductance of a portion of the body for testing vitality of teeth
-
- 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
Abstract
COEFICIENTE DE ATENUAçãO ESPECTRAL RADICULAR PARA USO EM LOCALIZADOR FORAMINAL ENDODÈNTICO. Esta patente reivindica a descoberta de um novo parâmetro denominado COEFICIENTE DE ATENUAçãO ESPECTRAL RADICULAR-CAER, para uso na medição do comprimento do canal radicular (CCR) e na localização do forame apical (LFA). Em trabalhos experimentais descobriu-se que existe uma atenuação espectral com decaimento do tipo exponencial no sinal medido entre dois eletrodos, assim posicionados: um preso ao lábio do paciente e uma lima endodóntica inserida no canal radicular. Os gráficos (2.3) e (2.6) apresentam os aspectros de freqüências dos sinais aplicados e medidos, respectivamente. a atenuação exponencial é devida às características elétricas do canal do dente. O constante de decaimento da exponencial muda à medida em que a extremidade da lima endodóntica aproxima-se do forame aplical. em uma escala logarítmica a atenuação espectral tem um comportamento linear, conforme apresentado no fráfico (2.10). Nos experimentos descobriu-se que a medida da inclinação da reta (2.10), denominada de Coeficiente de Atenuação Espectral Radicular (CAER), permite determinar o CCR e a LFA. O CAER é convertido na medida do CCR por meio de uma equação de conversão obtida experimentalmente.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0504065-5A BRPI0504065A (pt) | 2005-09-06 | 2005-09-06 | coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico |
US12/065,644 US8348863B2 (en) | 2005-09-06 | 2006-02-09 | Radicular spectral attenuation coefficient for use in endodontic foraminal locator |
PCT/BR2006/000020 WO2007028217A2 (en) | 2005-09-06 | 2006-02-09 | Radicular spectral attenuation coefficient for use in endodontic foraminal locator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0504065-5A BRPI0504065A (pt) | 2005-09-06 | 2005-09-06 | coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0504065A true BRPI0504065A (pt) | 2007-05-22 |
Family
ID=37836172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0504065-5A BRPI0504065A (pt) | 2005-09-06 | 2005-09-06 | coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico |
Country Status (3)
Country | Link |
---|---|
US (1) | US8348863B2 (pt) |
BR (1) | BRPI0504065A (pt) |
WO (1) | WO2007028217A2 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8348863B2 (en) | 2005-09-06 | 2013-01-08 | Ultradent Products, Inc. | Radicular spectral attenuation coefficient for use in endodontic foraminal locator |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2345388A1 (en) * | 2010-01-14 | 2011-07-20 | Endosafe GmbH | Apparatus for determining the location of the apex of a dental root canal |
US9179843B2 (en) | 2011-04-21 | 2015-11-10 | Hassan Ghaderi MOGHADDAM | Method and system for optically evaluating proximity to the inferior alveolar nerve in situ |
US9968301B2 (en) * | 2014-07-09 | 2018-05-15 | The Board Of Regents, The University Of Texas System | Body-driven pseudorandom signal injection for biomedical acquisition channel calibration |
US10543060B2 (en) | 2015-12-03 | 2020-01-28 | Ormco Corporation | Fluted endodontic file |
USD842474S1 (en) | 2017-10-20 | 2019-03-05 | Ormco Corporation | Endodontic file |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4629424A (en) * | 1984-08-30 | 1986-12-16 | Integrated Ionics, Inc. | Intraoral ambient sensing device |
US5728680A (en) * | 1987-12-30 | 1998-03-17 | Cytoven J.V. | Methods for normalizing numbers of lymphocytes |
US4895163A (en) * | 1988-05-24 | 1990-01-23 | Bio Analogics, Inc. | System for body impedance data acquisition |
DE4126753C2 (de) * | 1991-08-14 | 1997-04-10 | Morita Mfg | Vorrichtung zum Erkennen einer Apikalposition |
JP3113095B2 (ja) * | 1991-09-30 | 2000-11-27 | 株式会社モリタ製作所 | 歯科用根管診療装置 |
US5211556A (en) * | 1991-11-27 | 1993-05-18 | Kabushiki Kaisha Morita Seisakusho | Root canal meter |
US5759159A (en) * | 1996-09-25 | 1998-06-02 | Ormco Corporation | Method and apparatus for apical detection with complex impedance measurement |
FR2759897B1 (fr) * | 1997-02-25 | 1999-05-14 | Roger Heraud | Procede et dispositif perfectionne de mesure et de localisation de l'apex d'une dent |
JP2000060878A (ja) * | 1998-08-24 | 2000-02-29 | Toei Denki Kk | 根尖位置検出装置 |
AU2001294525A1 (en) * | 2000-09-06 | 2002-03-22 | Johns Hopkins University | Quantification of muscle tone |
JP3676753B2 (ja) * | 2001-05-02 | 2005-07-27 | 株式会社モリタ製作所 | 歯科用診療装置 |
US6845265B2 (en) * | 2002-07-26 | 2005-01-18 | Aseptico, Inc. | Systems and methods for locating a tooth's apical foramen |
US6968229B2 (en) * | 2003-05-06 | 2005-11-22 | Ormco Corporation | Apex locating system |
BRPI0504065A (pt) | 2005-09-06 | 2007-05-22 | Ronaldo Piazzalunga | coeficiente de atenuação espectral radicular para uso em localizador foraminal endodÈntico |
-
2005
- 2005-09-06 BR BRPI0504065-5A patent/BRPI0504065A/pt not_active IP Right Cessation
-
2006
- 2006-02-09 US US12/065,644 patent/US8348863B2/en not_active Expired - Fee Related
- 2006-02-09 WO PCT/BR2006/000020 patent/WO2007028217A2/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8348863B2 (en) | 2005-09-06 | 2013-01-08 | Ultradent Products, Inc. | Radicular spectral attenuation coefficient for use in endodontic foraminal locator |
Also Published As
Publication number | Publication date |
---|---|
US20090142726A1 (en) | 2009-06-04 |
US8348863B2 (en) | 2013-01-08 |
WO2007028217A8 (en) | 2007-09-20 |
WO2007028217A2 (en) | 2007-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25A | Requested transfer of rights approved |
Owner name: CAPI COMERCIO DE APARELHOS ELETRONICOS LTDA. (BR/P Free format text: TRANSFERIDO DE: RONALDO PIAZZALUNGA |
|
B25A | Requested transfer of rights approved |
Owner name: ULTRADENT PRODUCTS, INC. (US) Free format text: TRANSFERIDO DE: CAPI COMERCIO DE APARELHOS ELETRONICOS LTDA. |
|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 9A ANUIDADE. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2270 DE 08/07/2014. |
|
B15K | Others concerning applications: alteration of classification |
Ipc: A61C 19/04 (2006.01), A61B 5/053 (2006.01) |