WO2024026545A1 - Structural arrangement introduced into a dental matrix - Google Patents

Structural arrangement introduced into a dental matrix Download PDF

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Publication number
WO2024026545A1
WO2024026545A1 PCT/BR2023/050006 BR2023050006W WO2024026545A1 WO 2024026545 A1 WO2024026545 A1 WO 2024026545A1 BR 2023050006 W BR2023050006 W BR 2023050006W WO 2024026545 A1 WO2024026545 A1 WO 2024026545A1
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WIPO (PCT)
Prior art keywords
matrix
tooth
dental
holes
arrangement introduced
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PCT/BR2023/050006
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French (fr)
Portuguese (pt)
Inventor
Rafael MELARA
Simone Melara MANSSUR
Original Assignee
Melara Rafael
Manssur Simone Melara
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Application filed by Melara Rafael, Manssur Simone Melara filed Critical Melara Rafael
Publication of WO2024026545A1 publication Critical patent/WO2024026545A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
    • A61C5/85—Filling bands, e.g. matrix bands; Manipulating tools therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
    • A61C5/88—Wedges

Definitions

  • the present utility model belongs to the dental technical sector and refers more specifically to a new constructive arrangement introduced into a dental matrix with a tie fixation method with at least two dental wires that results in better adaptation and stabilization of the matrix around the tooth, providing a better contour of the face of the tooth to be restored.
  • Total or partial dental matrices consisting of bands that adapt to the surface of the tooth, with the aim of serving as a shield for the insertion of restorative material, reproducing the dental anatomy of tooth walls lost due to caries and fracture or when need to replace pre-existing defective restorations.
  • the objective is to reproduce the anatomical contours, replacing the lost tooth wall with composite resin or amalgam.
  • dental matrices available on the market.
  • the total matrices are adapted to the dental structure with the help of a matrix holder, a device that tightens the matrix around the dental structure using a screw, and is also stabilized by a wooden or plastic wedge.
  • a known solution is the Hollemback matrix, which recommends the creation of a central hole at each end of the matrix, however this arrangement needs to be customized by the dentist, who needs to carry out the perforations, making it difficult to adapt the matrix correctly. close to the tooth and increasing the risk of tearing the dental floss due to the presence of burrs on the edges of the holes made.
  • Patent document US 2011262878 describes a partial dental matrix that has 2 lower edges at the ends with a curvature, where a dental floss is adapted with the sole aim of facilitating the interproximal insertion of the matrix between the teeth.
  • This matrix does not It presents the possibility of performing the tie around the teeth as it is positioned towards the lower part of the tie, not allowing a correct adaptation of the matrix around the tooth.
  • US patent document 2012164594AA describes a device for applying pressure against adjacent teeth in order to separate them.
  • the device increases the interproximal space between adjacent teeth in order to facilitate visualization and work field.
  • the invention is accompanied by a conventional flexible partial matrix, presenting the same drawback described previously for this type of matrix (difficulty in adapting to cavities with great structural destruction).
  • US patent document 2015182302 describes a partial dental matrix with an upper flap and two side flaps containing holes.
  • This partial dental matrix arrangement features the possibility of inserting and removing the matrix using specific forceps adapted to one of the holes. Its holes are used only as a space for the instrument (tweezers) to be inserted to place and remove the matrix, not presenting a satisfactory position for dividing the matrix by tying it with dental floss.
  • holes are arranged in different positions, making it possible to divide the matrix with a wire in both the coronal and cervical portions, as well as different shapes and sizes, to be used in both molars and pre-molars. molars.
  • the total dental matrices of the state of the art are fixed using dental instruments (matrix holders), making it difficult for the professional to access the operating field to perform the necessary restorative procedure, which is solved by the present model through a partial matrix with holes , which allows its stabilization in the dental structure by traction, using dental floss or similar object tied firmly by a double knot (tie), which tensions the matrix around the tooth as the knot is tightened;
  • Figure 1 - illustrates the front view of the matrix of this model
  • Figure 2 - illustrates the front view of the matrix of the present model with tying wires
  • Figure 3 - illustrates the front view of a matrix option with inferior projection for subgingival adaptation
  • Figure 4 - illustrates the front view of a matrix option with two bodies for simultaneous use on two sides.
  • Figure 1 illustrates the new constructive arrangement introduced in the dental matrix in its preferred model, which comprises a laminar body (1) with at least four holes (2) at the lateral ends arranged in pairs, mirrored in relation to the vertical center of the matrix .
  • the holes (2) contain a diameter that allows the passage of a dental floss so that the matrix can be fixed by a tie in an operation performed by the dental professional. Such constructiveness brings stability and adaptation to the matrix and mobility to the professional, who does not need robust dental instruments next to the patient's mouth to fix the matrix. [017] To enable correct use of the matrix, the holes (2) are sanded (smooth), preventing wear on the dental floss and possible breakage.
  • the matrix contains at least four holes to enable its correct adaptation and fixation next to the patient's tooth, namely, a pair of upper holes (2-A) allows fractionation next to the coronal portion of the tooth and a pair of of inferior orifices (2-B) allows fractionation near the cervical portion of the tent, using ties.
  • This matrix comes in two sizes: one for molars and one for premolars.
  • Figure 2 illustrates the positioning of the two dental floss (3) for fixing each matrix, each dental floss (3) or similar objects, passes between the upper (2-A) and lower (2-B) holes from the same end and tied together on the opposite side of the tooth or wherever is best and possible, bringing stability and ensuring that the entire body (1 ) molds itself close to the patient's tooth.
  • the matrix may contain a laminar body (1) with a lower flap (4) containing, in addition to the four holes (2), two more holes (4-A) that enable lower binding together to the cervical of the tooth.
  • This optional model is especially applicable for teeth that have deep cavities in relation to the gingival tissue (subgingival).
  • the matrix may contain two similar laminar bodies (1) interconnected through a wall (5), which allows the laminar bodies (1) to be folded around the tooth, molding itself accordingly. according to the design of the tooth, containing at least four holes (2), at the opposite ends of each body (1), making it possible to work on the two proximal surfaces at the same time (mesial and distal). This matrix comes in two sizes: one for molars and one for premolars.

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  • 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

This utility model consists of a laminar body (1) with at least four openings (2) on the side ends arranged in pairs, symmetrical with respect to the vertical centre of the matrix, which allow the correct adaptation and fastening of the matrix on to the patient's tooth, that is, a pair of upper openings (2-A) for traction together with the crown portion of the tooth and a pair of lower openings (2-B) for traction on the cervical portion of the tooth using ligatures. The dental wires (3) pass between the upper opening (2-A) and lower opening (2-B) of the same end and are fastened together on the opposite side of the tooth.

Description

DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM MATRIZ DENTÁRIA Setor técnico CONSTRUCTIVE ARRANGEMENT INTRODUCED INTO DENTAL MATRIX Technical sector
[001 ] O presente modelo de utilidade pertence ao setor técnico odontológico e refere-se mais especificamente a uma nova disposição construtiva introduzida em matriz dentária com método de fixação por amarria com pelo menos dois fios dentais que resulta em uma melhor adaptação e estabilização da matriz em tomo do dente, proporcionando um melhor contorno da face do dente a ser restaurado. [001] The present utility model belongs to the dental technical sector and refers more specifically to a new constructive arrangement introduced into a dental matrix with a tie fixation method with at least two dental wires that results in better adaptation and stabilization of the matrix around the tooth, providing a better contour of the face of the tooth to be restored.
Estado da técnica State of the art
[002] São conhecidas matrizes dentárias totais ou parciais constituídas de bandas que se adaptam à superfície do dente, com o objetivo de servirem de anteparo para a inserção do material restaurador, reproduzindo a anatomia dental das paredes dentais perdidas por cárie e fratura ou quando da necessidade de substituição de restaurações defeituosas pré-existentes. [002] Total or partial dental matrices are known, consisting of bands that adapt to the surface of the tooth, with the aim of serving as a shield for the insertion of restorative material, reproducing the dental anatomy of tooth walls lost due to caries and fracture or when need to replace pre-existing defective restorations.
[003] Geralmente na técnica operatória de restauração dental, objetiva-se a reprodução dos contornos anatômicos, substituindo a parede do dente perdida por resina composta ou amálgama. Existem vários tipos de matrizes dentárias disponíveis no mercado. As matrizes totais são adaptadas à estrutura dental com o auxílio de um porta-matriz, dispositivo esse que realiza o apertamento da mesma em torno da estrutura dental através de um parafuso, sendo também estabilizadas por uma cunha de madeira ou de plástico. [003] Generally in the surgical technique of dental restoration, the objective is to reproduce the anatomical contours, replacing the lost tooth wall with composite resin or amalgam. There are several types of dental matrices available on the market. The total matrices are adapted to the dental structure with the help of a matrix holder, a device that tightens the matrix around the dental structure using a screw, and is also stabilized by a wooden or plastic wedge.
[004] Existem também as matrizes parciais, as quais são adaptadas aos dentes com auxílio de um anel metálico, que pressiona a matriz contra as paredes dentais remanescentes, sendo também estabilizadas por uma cunha de madeira ou de plástico. [004] There are also partial matrices, which are adapted to the teeth with the aid of a metal ring, which presses the matrix against the remaining tooth walls, and are also stabilized by a wooden or plastic wedge.
[005] As matrizes atualmente disponíveis apresentam alguns inconvenientes. As matrizes totais estabilizadas por um porta-matriz ocupam um espaço demasiado no campo operatório devido à presença do porta-matriz, sendo estabilizadas nos dentes com o auxílio de uma cunha de madeira ou plástico. Outro inconveniente deste tipo de matriz é a dificuldade da correta reprodução da convexidade das faces dentais pois as mesmas apresentam formato plano. Por sua vez, as matrizes parciais apresentam como inconveniente a dificuldade de adaptação em dentes com elevada perda tecidual, pois como são estabilizadas por um anel metálico, este muitas vezes, não encontra anteparo na parede dental perdida, pois ao comprimir a matriz contra o dente, empurra a mesma para o interior da cavidade dental. [005] Currently available matrices have some drawbacks. Total matrices stabilized by a matrix holder take up too much space in the operative field due to the presence of the matrix holder, and are stabilized on the teeth with the help of a wooden or plastic wedge. Another drawback of this type of matrix is the difficulty in correctly reproducing the convexity of the tooth surfaces as they have a flat shape. In turn, partial matrices present the inconvenience of difficulty in adapting them to teeth with high tissue loss, as they are stabilized by a metal ring, which often finds no protection in the lost tooth wall, because when the matrix is compressed against the tooth, it pushes it into the dental cavity.
[006] Uma solução conhecida é a matriz de Hollemback, a qual preconiza a confecção de um orifício central em cada extremidade da matriz, porém esta disposição necessita ser personalizada pelo cirurgião-dentista, que precisa realizar as perfurações, dificultando a adaptação correta da matriz junto ao dente e aumentando o risco de rasgamento do fio dental pela presença de rebarbas nas bordas dos orifícios confeccionados. [006] A known solution is the Hollemback matrix, which recommends the creation of a central hole at each end of the matrix, however this arrangement needs to be customized by the dentist, who needs to carry out the perforations, making it difficult to adapt the matrix correctly. close to the tooth and increasing the risk of tearing the dental floss due to the presence of burrs on the edges of the holes made.
[007] O documento de patente US 2011262878 descreve uma matriz parcial dentária que apresenta 2 bordas inferiores nas extremidades com uma curvatura, onde é adaptado um fio dental com o objetivo apenas de facilitar a inserção interproximal da matriz entre os dentes.. Essa matriz não apresenta a possibilidade de realizar a amarria ao redor dos dentes pois tem um posicionamento deslocado para a parte inferior da mesma, não possibilitando uma correta adaptação da matriz em tomo do dente. [007] Patent document US 2011262878 describes a partial dental matrix that has 2 lower edges at the ends with a curvature, where a dental floss is adapted with the sole aim of facilitating the interproximal insertion of the matrix between the teeth. This matrix does not It presents the possibility of performing the tie around the teeth as it is positioned towards the lower part of the tie, not allowing a correct adaptation of the matrix around the tooth.
[008] O documento de patente US 2012164594AA descreve um dispositivo para aplicação de pressão contra os dentes adjacentes a fim de separá-los. O dispositivo aumenta o espaço interproximal entre os dentes adjacentes a fim de facilitar a visualização e campo de trabalho. A invenção é acompanhada de uma matriz parcial flexível convencional, apresentando o mesmo inconveniente descrito anteriormente para esse tipo de matriz (dificuldade de adaptação em cavidades com grande destrição estrutural). [008] US patent document 2012164594AA describes a device for applying pressure against adjacent teeth in order to separate them. The device increases the interproximal space between adjacent teeth in order to facilitate visualization and work field. The invention is accompanied by a conventional flexible partial matrix, presenting the same drawback described previously for this type of matrix (difficulty in adapting to cavities with great structural destruction).
[009] O documento de patente US 2015182302 descreve uma matriz dental parcial com aba superior e duas abas laterais contendo orifícios. Esta disposição em matriz parcial dentária apresenta como característica a possibilidade de inserção e remoção da matriz utilizando pinça específica adaptada a um dos orifícios. Seus orifícios são utilizados apenas como um espaço para que seja inserido o instrumento (pinça) para colocação e remoção da matriz, não apresentando posição satisfatória para o fracionamento da matriz pela realização de amarria com fio dental. [009] US patent document 2015182302 describes a partial dental matrix with an upper flap and two side flaps containing holes. This partial dental matrix arrangement features the possibility of inserting and removing the matrix using specific forceps adapted to one of the holes. Its holes are used only as a space for the instrument (tweezers) to be inserted to place and remove the matrix, not presenting a satisfactory position for dividing the matrix by tying it with dental floss.
Novidade e objetivo do modelo proposto Novelty and objective of the proposed model
[010] A nova disposição construtiva introduzida em matriz dentária para restauração de dentes, proposto pelo presente modelo de utilidade, resolve eficazmente as limitações do estado da técnica anteriormente referidos. [010] The new constructive arrangement introduced in dental matrix for tooth restoration, proposed by the present utility model, solves effectively overcome the limitations of the aforementioned prior art.
[011 ] É uma matriz dentária parcial com orifícios laterais que possibilita sua fixação junto ao dente através do fracionamento por amarria. Através de um fio dental ou objeto similar o cirurgião-dentista poderá inserir a matriz no espaço entre os dentes desejados e amarrar a matriz em tomo do dente, garantindo sua correta fixação e fracionamento. [011] It is a partial dental matrix with side holes that allows it to be fixed to the tooth through fractionation by tying. Using a dental floss or similar object, the dentist can insert the matrix into the space between the desired teeth and tie the matrix around the tooth, ensuring its correct fixation and fractionation.
[012] Para aumentar a versatilidade da matriz, são dispostos orifícios em diferentes posições, possibilitando fracionar a matriz com um fio tanto na porção coronária quanto na porção cervical, bem como diferentes formatos e tamanhos, para serem utilizadas tanto em molares quanto em pré-molares. [012] To increase the versatility of the matrix, holes are arranged in different positions, making it possible to divide the matrix with a wire in both the coronal and cervical portions, as well as different shapes and sizes, to be used in both molars and pre-molars. molars.
Melhoria funcional do modelo proposto Functional improvement of the proposed model
[013] A nova disposição construtiva introduzida em matriz dentária, proposta pelo presente modelo de utilidade, resulta nas seguintes melhorias funcionais:[013] The new constructive arrangement introduced in the dental matrix, proposed by this utility model, results in the following functional improvements:
- As matrizes dentárias totais do estado da técnica são fixadas através de instrumentos odontológicos (porta-matrizes), dificultando o acesso ao campo operatório do profissional para realizar o procedimento restaurador necessário, o que é resolvido pelo presente modelo através de uma matriz parcial com orifícios, a qual possibilita a sua estabilização na estrutura dental por tração, através de fio dental ou objeto similar amarrado de forma firme por duplo nó (amarria), o qual tensiona a matriz em tomo do dente à medida que o nó é apertado; - The total dental matrices of the state of the art are fixed using dental instruments (matrix holders), making it difficult for the professional to access the operating field to perform the necessary restorative procedure, which is solved by the present model through a partial matrix with holes , which allows its stabilization in the dental structure by traction, using dental floss or similar object tied firmly by a double knot (tie), which tensions the matrix around the tooth as the knot is tightened;
- As matrizes dentárias parciais do estado da técnica são fixadas através de anéis metálicos e cunhas de madeira na estrutura dental sendo inviável a sua adaptação em dentes com elevada perda tecidual, pois como elas são estabilizadas por um anel metálico, este muitas vezes, não encontra anteparo na parede dental perdida, pois ao comprimir a matriz contra o dente, empurra a mesma para o interior do cavidade dental. A grande vantagem do presente invento em relação às matrizes parciais atualmente disponíveis, é que a adaptação desta matriz inovadora se dá por fracionamento e não por compressão, portanto sem a necessidade de estabilização por um anel metálico. Assim sendo, mesmo que a cavidade dental seja ampla, será possível adaptá-la à estrutura dental pois a mesma será fracionada em tomo do dente por uma amarria, sem a necessidade de utilização de um anel metálico, o que inviabilizaria o processo; - State-of-the-art partial dental matrices are fixed using metal rings and wooden wedges in the dental structure, making it unfeasible to adapt them to teeth with high tissue loss, as they are stabilized by a metal ring, which is often not found. shield in the lost tooth wall, as when compressing the matrix against the tooth, it pushes it into the tooth cavity. The great advantage of the present invention in relation to currently available partial matrices is that the adaptation of this innovative matrix takes place by fractionation and not by compression, therefore without the need for stabilization by a metallic ring. Therefore, even if the dental cavity is wide, it will be possible to adapt it to the dental structure as it will be divided around the tooth by a tie, without the need to use a ring. metallic, which would make the process unfeasible;
- Orifícios dispostos em diferentes posições na matriz, possibilitando uma amarria com fio na porção coronária e/ou cervical do dente paciente; - Holes arranged in different positions in the matrix, allowing a thread to be tied to the coronal and/or cervical portion of the patient tooth;
- Dois diferentes modelos para molares, apresentando 4 orifícios, tomando possível trabalhar em uma face proximal (mesial ou distal) ou nas duas faces proximais ao mesmo tempo (mesial e distai); - Two different models for molars, with 4 holes, making it possible to work on one proximal surface (mesial or distal) or on both proximal surfaces at the same time (mesial and distal);
- Um modelo especialmente desenvolvido para cavidades subgengivais em molares contendo além dos 4 orifícios, mais 2 orifícios posicionados na porção inferior, para promover uma correta adaptação da matriz também na porção subgengival; e - A model specially developed for subgingival cavities in molars containing, in addition to the 4 holes, 2 more holes positioned in the lower portion, to promote a correct adaptation of the matrix also in the subgingival portion; It is
- Dois diferentes modelos para pré-molares, apresentando 4 orifícios, tornando possível trabalhar em uma face proximal (mesial ou distal) ou nas duas faces proximais ao mesmo tempo (mesial e distai). - Two different models for premolars, featuring 4 holes, making it possible to work on one proximal surface (mesial or distal) or on both proximal surfaces at the same time (mesial and distal).
- Relação dos desenhos anexos - List of attached drawings
[014] A fim de que o presente modelo seja plenamente compreendido e levado à prática por qualquer técnico desse setor tecnológico, o mesmo passa a ser descrito de forma clara, precisa e suficiente, com base nos desenhos anexos, abaixo listados, que ilustram formas de realização da matriz dentária: [014] In order for this model to be fully understood and put into practice by any technician in this technological sector, it is now described in a clear, precise and sufficient way, based on the attached drawings, listed below, which illustrate shapes of creating the dental matrix:
Figura 1 - ilustra a vista frontal da matriz do presente modelo; Figure 1 - illustrates the front view of the matrix of this model;
Figura 2 - ilustra a vista frontal da matriz do presente modelo com fios para amarria; Figure 2 - illustrates the front view of the matrix of the present model with tying wires;
Figura 3 - ilustra a vista frontal de uma opção da matriz com projeção inferior para adaptação subgengival; e Figure 3 - illustrates the front view of a matrix option with inferior projection for subgingival adaptation; It is
Figura 4 - ilustra a vista frontal de uma opção da matriz com dois corpos para utilização simultânea em duas faces. Figure 4 - illustrates the front view of a matrix option with two bodies for simultaneous use on two sides.
Descrição do modelo Model description
[015] A figura 1 ilustra a nova disposição construtiva introduzida em matriz dentária em seu modelo preferencial que compreende um corpo laminar (1 ) com pelo menos quatro orifícios (2) nas extremidades laterais dispostos em pares, espelhados em relação ao centro vertical da matriz. [015] Figure 1 illustrates the new constructive arrangement introduced in the dental matrix in its preferred model, which comprises a laminar body (1) with at least four holes (2) at the lateral ends arranged in pairs, mirrored in relation to the vertical center of the matrix .
[016] Os orifícios (2) contêm um diâmetro que possibilita a passagem de um fio dental para que a matriz seja fixada por amarria em uma operação executada pelo profissional de odontologia. Tal construtividade traz estabilidade e adaptação para a matriz e mobilidade ao profissional, que não necessita de instrumentos odontológicos robustos junto à boca do paciente para fixar a matriz. [017] Para possibilitar uma correta utilização da matriz, os orifícios (2) são lixados (lisos), evitando que ocorra desgaste do fio dental e uma possível ruptura. [018] A matriz contém pelo menos quatro orifícios para possibilitar uma correta adaptação e fixação da mesma junto ao dente do paciente, a saber, um par de orifícios superiores (2-A) possibilita um fracionamento junto à porção coronária do dente e um par de orifícios inferiores (2-B) possibilita um fracionamento junto à porção cervical do tente, por meio de amarrias. Essa matriz apresenta-se em dois tamanhos: um para molares e outro para pré-molares. [016] The holes (2) contain a diameter that allows the passage of a dental floss so that the matrix can be fixed by a tie in an operation performed by the dental professional. Such constructiveness brings stability and adaptation to the matrix and mobility to the professional, who does not need robust dental instruments next to the patient's mouth to fix the matrix. [017] To enable correct use of the matrix, the holes (2) are sanded (smooth), preventing wear on the dental floss and possible breakage. [018] The matrix contains at least four holes to enable its correct adaptation and fixation next to the patient's tooth, namely, a pair of upper holes (2-A) allows fractionation next to the coronal portion of the tooth and a pair of of inferior orifices (2-B) allows fractionation near the cervical portion of the tent, using ties. This matrix comes in two sizes: one for molars and one for premolars.
[019] A figura 2 ilustra o posicionamento dos dois fios dentais (3) para a fixação de cada matriz, cada fio dental (3) ou objetos similares, passa entre o orifício superior (2-A) e inferior (2-B) da mesma extremidade e amarram-se entre si na face oposta do dente ou onde for melhor e possível, trazendo estabilidade e garantindo que todo o corpo (1 ) se molde junto ao dente do paciente. [019] Figure 2 illustrates the positioning of the two dental floss (3) for fixing each matrix, each dental floss (3) or similar objects, passes between the upper (2-A) and lower (2-B) holes from the same end and tied together on the opposite side of the tooth or wherever is best and possible, bringing stability and ensuring that the entire body (1 ) molds itself close to the patient's tooth.
[020] Alternativamente, conforme ilustrado na figura 3, a matriz pode conter um corpo laminar (1 ) com uma aba inferior (4) contendo além dos quatro orifícios (2) mais dois orifícios (4-A) que possibilitam uma amarração inferior junto à cervical do dente. Esse modelo opcional tem especial aplicação para dentes que apresentam cavidades profundas em relação ao tecido gengival (subgengivais). [021 ] Opcionalmente, conforme ilustrado na figura 4, a matriz pode conter dois corpos laminares (1 ) similares interligados através de uma parede (5), que possibilita a dobra dos corpos laminares (1 ) ao redor do dente, moldando-se de acordo com o desenho do dente, contendo pelo menos quatro orifícios (2), nas extremidades opostas de cada corpo (1 ), tomando possível trabalhar nas duas faces proximais ao mesmo tempo (mesial e distai). Essa matriz apresenta-se em dois tamanhos: um para molares e outro para pré-molares. [020] Alternatively, as illustrated in figure 3, the matrix may contain a laminar body (1) with a lower flap (4) containing, in addition to the four holes (2), two more holes (4-A) that enable lower binding together to the cervical of the tooth. This optional model is especially applicable for teeth that have deep cavities in relation to the gingival tissue (subgingival). [021] Optionally, as illustrated in figure 4, the matrix may contain two similar laminar bodies (1) interconnected through a wall (5), which allows the laminar bodies (1) to be folded around the tooth, molding itself accordingly. according to the design of the tooth, containing at least four holes (2), at the opposite ends of each body (1), making it possible to work on the two proximal surfaces at the same time (mesial and distal). This matrix comes in two sizes: one for molars and one for premolars.
INCORPORADAS POR REFERÊNCIA REGRA 20.6 INCORPORATED BY REFERENCE RULE 20.6

Claims

REIVINDICAÇÕES
1 - DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM MATRIZ DENTÁRIA, que é constituída de um corpo laminar (1 ), caracterizada por possuir pelo menos quatro orifícios (2) nas extremidades laterais do corpo laminar (1 ) dispostos em pares, espelhados em relação ao centro vertical da matriz para realização de amarria. 1 - CONSTRUCTIVE ARRANGEMENT INTRODUCED INTO A DENTAL MATRIX, which is made up of a laminar body (1), characterized by having at least four holes (2) at the lateral ends of the laminar body (1) arranged in pairs, mirrored in relation to the vertical center of the matrix for carrying out tying.
2 - DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM MATRIZ DENTÁRIA, de acordo com a reivindicação 1 , caracterizado por alternativamente a matriz possuir no corpo laminar (1 ) uma aba (4) inferior contendo além dos quatro orifícios (2), pelo menos dois orifícios (4-A) que possibilitam uma amarração inferior junto à cervical do dente. 2 - CONSTRUCTIVE ARRANGEMENT INTRODUCED INTO A DENTAL MATRIX, according to claim 1, characterized in that the matrix alternatively has in the laminar body (1) a lower flap (4) containing, in addition to the four holes (2), at least two holes (4- A) that allow for a lower tie close to the cervical of the tooth.
3 - DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM MATRIZ DENTÁRIA, de acordo com a reivindicação 1 , caracterizado por opcionalmente a matriz possuir dois corpos laminares (1 ) similares interligados através de uma parede (5) para a dobra dos corpos laminares (1 ) ao redor do dente, contendo pelo menos quatro orifícios (2), nas extremidades opostas de cada corpo laminar (1 ), tomando possível trabalhar nas faces mesial e distai ao mesmo tempo. 3 - CONSTRUCTIVE ARRANGEMENT INTRODUCED INTO A DENTAL MATRIX, according to claim 1, characterized in that the matrix optionally has two similar laminar bodies (1) interconnected through a wall (5) for the bending of the laminar bodies (1) around the tooth , containing at least four holes (2), at opposite ends of each laminar body (1), making it possible to work on the mesial and distal surfaces at the same time.
PCT/BR2023/050006 2022-08-04 2023-01-11 Structural arrangement introduced into a dental matrix WO2024026545A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US677268A (en) * 1901-03-16 1901-06-25 Roscoe B Power Dental instrument.
US1669231A (en) * 1926-08-09 1928-05-08 John J Curran Matrix-band structure
US5425635A (en) * 1994-06-16 1995-06-20 Croll; Theodore P. Matrix band segment and restoration procedure
WO2002043609A1 (en) * 2000-12-01 2002-06-06 Lakshmi Nagesh Chakka Self adjusting matrix
US20050244787A1 (en) * 2004-04-09 2005-11-03 Dental Innovations, Inc. Dental matrix positioned by slidably engaged matrix retainer
WO2012064750A1 (en) * 2010-11-10 2012-05-18 Triodent Holdings Limited Dental matrix with micro-pores
US20190183609A1 (en) * 2017-12-20 2019-06-20 Johnny Yonnadam Dental Form Assembly
US10441394B2 (en) * 2012-04-02 2019-10-15 Dentsply Sirona Inc. Dental matrix band

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US677268A (en) * 1901-03-16 1901-06-25 Roscoe B Power Dental instrument.
US1669231A (en) * 1926-08-09 1928-05-08 John J Curran Matrix-band structure
US5425635A (en) * 1994-06-16 1995-06-20 Croll; Theodore P. Matrix band segment and restoration procedure
WO2002043609A1 (en) * 2000-12-01 2002-06-06 Lakshmi Nagesh Chakka Self adjusting matrix
US20050244787A1 (en) * 2004-04-09 2005-11-03 Dental Innovations, Inc. Dental matrix positioned by slidably engaged matrix retainer
WO2012064750A1 (en) * 2010-11-10 2012-05-18 Triodent Holdings Limited Dental matrix with micro-pores
US10441394B2 (en) * 2012-04-02 2019-10-15 Dentsply Sirona Inc. Dental matrix band
US20190183609A1 (en) * 2017-12-20 2019-06-20 Johnny Yonnadam Dental Form Assembly

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