BRPI0700372B8 - improvements introduced in drill for cervical root canal preparation - Google Patents
improvements introduced in drill for cervical root canal preparationInfo
- Publication number
- BRPI0700372B8 BRPI0700372B8 BRPI0700372A BRPI0700372A BRPI0700372B8 BR PI0700372 B8 BRPI0700372 B8 BR PI0700372B8 BR PI0700372 A BRPI0700372 A BR PI0700372A BR PI0700372 A BRPI0700372 A BR PI0700372A BR PI0700372 B8 BRPI0700372 B8 BR PI0700372B8
- Authority
- BR
- Brazil
- Prior art keywords
- cutting
- drill
- sector
- rotation
- cut
- 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
- A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
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
aperfeiçoamentos introduzidos em broca para preparo cervical dos canais radiculares, mais precisamente trata-se de aperfeiçoamentos em broca pertencente ao campo da endodontia ou prótese, a qual é dimensionada, tratada e conformada de maneira a apresentar um perfil cortante adequado para trabalhar desgastando lateralmente a dentina dos canais radiculares, reduzindo acidentes durante o ato operatório; a broca (1) apresenta-se conformada por setor cônico (s) e setor cortante (p) com diâmetro inicial menor (a) e diâmetro final maior (b), além de um comprimento de corte (c), sendo que o setor (p) é conformado, preferencialmente, com 04 (quatro) arestas de corte (2) e ponta inativa (não cortante) (3) para tratamento de canais radiculares e opcionalmente com ponta ativa (cortante) (4) para retratamento ou remoção de materiais obturadores de tratamentos endodônticos anteriores; completando a conformação da broca, o setor cortante (p) se desenvolve em setor cônico (s) que se interliga à base cilíndrica (d) de montagem no micro motor; as arestas de corte (2) são posicionadas preferencialmente a 90º do centro de giro, alinhadas axialmente em relação à conicidade e ao eixo de giro (e) do instrumento (1); as arestas de corte (2) possuem dois sentidos de corte, sendo eles: a) sentido no corte lateral, ou seja no sentido do raio do instrumento, tanto no avanço como no retorno e b) corte no sentido longitudinal ao eixo de giro (e), promovido pelo diâmetro maior da conicidade da área de corte que formam cantos vivos(q).improvements introduced in a drill for cervical root canal preparation, more precisely these are improvements in a drill pertaining to the field of endodontics or prosthesis, which is sized, treated and shaped so as to present a cutting profile suitable for working laterally wearing the dentin root canals, reducing accidents during the surgery; the drill (1) is formed by a conical sector (s) and cutting sector (p) with a smaller initial diameter (a) and larger final diameter (b), in addition to a cut length (c), and the sector (p) is preferably shaped with 04 (four) cutting edges (2) and inactive (non-cutting) tip (3) for treatment of root canals and optionally with active (cutting) tip (4) for retreatment or removal of filling materials from previous endodontic treatments; completing the shaping of the drill, the cutting sector (p) develops into a conical sector (s) that interconnects to the cylindrical base (d) of assembly in the micromotor; the cutting edges (2) are preferably positioned at 90º from the center of rotation, aligned axially with respect to the taper and the axis of rotation (e) of the instrument (1); the cutting edges (2) have two cutting directions, namely: a) direction in the side cut, that is, in the direction of the instrument radius, both in forward and in return, and b) cut in the longitudinal direction of the rotation axis (and ), promoted by the larger diameter of the cutting area taper that form sharp corners(q).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0700372A BRPI0700372B8 (en) | 2007-01-19 | 2007-01-19 | improvements introduced in drill for cervical root canal preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0700372A BRPI0700372B8 (en) | 2007-01-19 | 2007-01-19 | improvements introduced in drill for cervical root canal preparation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| BRPI0700372A BRPI0700372A (en) | 2008-09-02 |
| BRPI0700372B1 BRPI0700372B1 (en) | 2018-11-13 |
| BRPI0700372B8 true BRPI0700372B8 (en) | 2021-06-22 |
Family
ID=39730929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0700372A BRPI0700372B8 (en) | 2007-01-19 | 2007-01-19 | improvements introduced in drill for cervical root canal preparation |
Country Status (1)
| Country | Link |
|---|---|
| BR (1) | BRPI0700372B8 (en) |
-
2007
- 2007-01-19 BR BRPI0700372A patent/BRPI0700372B8/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0700372B1 (en) | 2018-11-13 |
| BRPI0700372A (en) | 2008-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B03A | Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette] | ||
| B25A | Requested transfer of rights approved |
Owner name: ALEXANDRE CAPELLI (BR/SP) |
|
| B15K | Others concerning applications: alteration of classification |
Ipc: A61C 3/02 (2006.01) |
|
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 13/11/2018, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B16C | Correction of notification of the grant |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/01/2007, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO |