BRPI0700372A - Improvements made in a drill for cervical root canal preparation - Google Patents

Improvements made in a drill for cervical root canal preparation

Info

Publication number
BRPI0700372A
BRPI0700372A BRPI0700372-2A BRPI0700372A BRPI0700372A BR PI0700372 A BRPI0700372 A BR PI0700372A BR PI0700372 A BRPI0700372 A BR PI0700372A BR PI0700372 A BRPI0700372 A BR PI0700372A
Authority
BR
Brazil
Prior art keywords
cutting
drill
sector
rotation
diameter
Prior art date
Application number
BRPI0700372-2A
Other languages
Portuguese (pt)
Inventor
Alexandre Capelli
Original Assignee
G N Injecta Ind Com De Mat Med
F F D M Pneumat
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G N Injecta Ind Com De Mat Med, F F D M Pneumat filed Critical G N Injecta Ind Com De Mat Med
Priority to BRPI0700372A priority Critical patent/BRPI0700372B8/en
Publication of BRPI0700372A publication Critical patent/BRPI0700372A/en
Publication of BRPI0700372B1 publication Critical patent/BRPI0700372B1/en
Publication of BRPI0700372B8 publication Critical patent/BRPI0700372B8/en

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 cónico (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 endodónticos anteriores; completando a conformação da broca, o setor cortante (P) se desenvolve em setor cónico (S) que se interliga à base cilíndrica (D) de montagem no micro motor; as arestas de corte (2) são posicionadas preferencialmente a 900 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).PERFORMANCE INTRODUCED IN DRILL FOR CERVICAL PREPARATION OF RADICULAR CHANNELS. More precisely, these are drill enhancements in the field of endodontics or prostheses, which are sized, treated and shaped to present a cutting profile suitable for working laterally wearing the dentin of the root canals, reducing accidents during the operation; the drill (1) is formed by the conical sector (S) and cutting sector (P) with smaller initial diameter (a) and larger final diameter (b), besides a cutting length (c), and the sector (P) is preferably formed with 04 (four) cutting edges (2) and inactive (non-cutting) tip (3) for root canal treatment and optionally with active (cutting) tip (4) for retreatment or removal of obturator materials from previous endodontic treatments; Completing the conformation of the drill, the cutting sector (P) develops into the tapered sector (S) which interconnects with the cylindrical base (D) mounted on the micro motor; the cutting edges (2) are preferably positioned at 900 ° from the center of rotation, axially aligned with respect to the taper and axis of rotation (E) of the instrument (1); the cutting edges (2) have two cutting directions, namely: a) direction in the lateral section, that is, in the direction of the radius of the instrument, both in advance and in return and b) section in the longitudinal direction of the axis of rotation (E ), promoted by the larger taper diameter of the cutting area forming sharp corners (Q).

BRPI0700372A 2007-01-19 2007-01-19 improvements introduced in drill for cervical root canal preparation BRPI0700372B8 (en)

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 true BRPI0700372A (en) 2008-09-02
BRPI0700372B1 BRPI0700372B1 (en) 2018-11-13
BRPI0700372B8 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)

Also Published As

Publication number Publication date
BRPI0700372B1 (en) 2018-11-13
BRPI0700372B8 (en) 2021-06-22

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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