JP2016146992A - Dental member - Google Patents

Dental member Download PDF

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Publication number
JP2016146992A
JP2016146992A JP2015026099A JP2015026099A JP2016146992A JP 2016146992 A JP2016146992 A JP 2016146992A JP 2015026099 A JP2015026099 A JP 2015026099A JP 2015026099 A JP2015026099 A JP 2015026099A JP 2016146992 A JP2016146992 A JP 2016146992A
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Prior art keywords
oxide film
film layer
coating layer
dental member
base material
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JP2015026099A
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Japanese (ja)
Inventor
和三 赤津
Kazumi Akatsu
和三 赤津
阿部　隆
Takashi Abe
隆 阿部
仁 蛭田
Jin Hiruta
仁 蛭田
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Shintec Co Ltd
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Shintec Co Ltd
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Priority to JP2015026099A priority Critical patent/JP2016146992A/en
Priority to PCT/JP2016/053936 priority patent/WO2016129630A1/en
Priority to TW105104292A priority patent/TWI607743B/en
Publication of JP2016146992A publication Critical patent/JP2016146992A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/267—Clasp fastening
    • 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
    • A61C5/70—Tooth crowns; Making thereof
    • A61C5/77—Methods or devices for making crowns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/20—Arch wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Physical Vapour Deposition (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Preparations (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a dental member having a color tone similar to that of an actual tooth.SOLUTION: A dental member 1 includes: a base material 2 composed of one kind of metal selected from an Ni alloy, Ti, a Ti alloy, or stainless steel; a first oxide film layer 3 formed on the surface of the base material 2; a second oxide film layer 4 formed so that the total thickness of the first oxide film layer 3 and the second oxide film layer 4 is 10-500 nm by conducting discharging on the first oxide film layer 3 in the presence of oxygen in an ion plating device; and a coating layer 5 formed on the second oxide film layer 4 by ion plating. The coating layer 5 is a chemical compound of metal including at least Zr, and one or more kinds of chemical elements selected from N, C, and O.SELECTED DRAWING: Figure 1

Description

本発明は、ワイヤ、ブラケット、クラスプ、差し歯、入れ歯、歯冠、歯科補綴物等の歯科用部材に関する。   The present invention relates to a dental member such as a wire, bracket, clasp, denture, denture, crown, and dental prosthesis.

従来、表面に酸化被膜層を備える母材金属にイオンプレーティング装置内で酸素の存在下に放電を行うことにより、酸化被膜層上にさらに新しい酸化被膜層を形成して、酸化被膜層全体の厚さが１０〜１００ｎｍとなるようにし、新しい酸化被膜層上にイオンプレーティングによりコーティング層を形成した歯科用部材が本出願人により提案されている（特許文献１参照）。   Conventionally, by performing discharge in the presence of oxygen in an ion plating apparatus on a base metal having an oxide film layer on the surface, a new oxide film layer is formed on the oxide film layer, and the entire oxide film layer is formed. A dental member having a thickness of 10 to 100 nm and having a coating layer formed on a new oxide film layer by ion plating has been proposed by the present applicant (see Patent Document 1).

前記歯科用部材において、前記母材金属は、Ｎｉ合金、Ｔｉ、Ｔｉ合金又はステンレスのいずれか１種の金属からなる。また、前記コーティング層は、Ｔｉ、Ｎｂ、Ｔａのいずれか１種の金属とＮ、Ｃ、Ｏの１種以上の元素との化合物又は、Ｐｔ、Ｐｄ、Ａｕ、Ａｇ又はＲｈのいずれか１種の金属又は２種以上の金属間化合物からなる。   In the dental member, the base metal is made of any one of Ni alloy, Ti, Ti alloy, and stainless steel. The coating layer may be a compound of any one of Ti, Nb, and Ta and one or more elements of N, C, and O, or any one of Pt, Pd, Au, Ag, or Rh. Or two or more intermetallic compounds.

前記歯科用部材では、前記酸化被膜層により前記母材金属の腐食を防止することができ、さらに該母材金属と前記コーティング層を形成する金属との電位差の相違による腐食も防止することができる。また、前記歯科用部材では、前記コーティング層により審美性に優れた色調を得ることができる。   In the dental member, corrosion of the base metal can be prevented by the oxide film layer, and further, corrosion due to a difference in potential between the base metal and the metal forming the coating layer can also be prevented. . Moreover, in the said dental member, the color tone excellent in aesthetics can be obtained with the said coating layer.

特開２０１４−１６１５１９号公報JP 2014-161519 A

しかしながら、前記従来の歯科用部材では、実際の歯に類似したアイボリーホワイトの色調を得ることができず、さらに改良が望まれる。   However, the conventional dental member cannot obtain an ivory white color tone similar to an actual tooth, and further improvement is desired.

本発明は、かかる事情に鑑み、実際の歯に類似した色調を備える歯科用部材を提供することを目的とする。   In view of such circumstances, an object of the present invention is to provide a dental member having a color tone similar to an actual tooth.

かかる目的を達成するために、本発明の歯科用部材は、Ｎｉ合金、Ｔｉ、Ｔｉ合金又はステンレスからなる群から選択される１種の金属からなる母材と、該母材の表面に空気中での酸化により形成されている第１の酸化被膜層と、該第１の酸化被膜層上にイオンプレーティング装置内で酸素の存在下に放電を行うことにより、該第１の酸化被膜層との合計の厚さが１０〜５００ｎｍの範囲となるように形成された第２の酸化被膜層と、該第２の酸化被膜層上にイオンプレーティングにより形成されたコーティング層とを備える歯科用部材において、該コーティング層は、少なくともＺｒを含む金属と、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなることを特徴とする。   In order to achieve such an object, the dental member of the present invention includes a base material made of one metal selected from the group consisting of Ni alloy, Ti, Ti alloy or stainless steel, and a surface of the base material in the air. A first oxide film layer formed by oxidation in the first oxide film layer, and discharging the first oxide film layer on the first oxide film layer in the presence of oxygen in an ion plating apparatus; A dental member comprising: a second oxide film layer formed so that the total thickness thereof is in the range of 10 to 500 nm; and a coating layer formed by ion plating on the second oxide film layer The coating layer is characterized by comprising a compound of a metal containing at least Zr and at least one element selected from the group consisting of N, C, and O.

本発明の歯科用部材において、前記母材は、空気中で自然に酸化されることにより、その表面に第１の酸化被膜層を備えている。本発明の歯科用部材は、前記第１の酸化被膜層上に、イオンプレーティング装置内で酸素の存在下に放電を行うことにより形成された前記第２の酸化被膜層を備える。   In the dental member of the present invention, the base material is naturally oxidized in the air, and thus has a first oxide film layer on the surface thereof. The dental member of the present invention includes the second oxide film layer formed by performing discharge in the presence of oxygen in the ion plating apparatus on the first oxide film layer.

ここで、前記第１の酸化被膜層と前記第２の酸化被膜層との合計の厚さが１０〜５００ｎｍの範囲であることにより、前記母材の腐食を防止することができ、さらに該母材と前記コーティング層を形成する金属との電位差の相違による腐食も防止することができる。   Here, when the total thickness of the first oxide film layer and the second oxide film layer is in the range of 10 to 500 nm, corrosion of the base material can be prevented, and Corrosion due to a difference in potential difference between the material and the metal forming the coating layer can also be prevented.

前記第１の酸化被膜層と前記第２の酸化被膜層との合計の厚さが１０ｎｍ未満であるときには、前記母材の腐食又は該母材と前記コーティング層を形成する金属との電位差の相違による腐食を防止することができない。また、前記第１の酸化被膜層と前記第２の酸化被膜層との合計の厚さが５００ｎｍを超えると、該第２の酸化被膜層と前記コーティング層との間で十分な密着性を得ることができなくなる。   When the total thickness of the first oxide film layer and the second oxide film layer is less than 10 nm, corrosion of the base material or difference in potential difference between the base material and the metal forming the coating layer Can not prevent corrosion due to. Further, when the total thickness of the first oxide film layer and the second oxide film layer exceeds 500 nm, sufficient adhesion is obtained between the second oxide film layer and the coating layer. I can't do that.

本発明の歯科用部材では、前記第２の酸化被膜層の上に形成される前記コーティング層が少なくともＺｒを含む金属と、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなることにより、実際の歯に類似したアイボリーホワイトの色調を得ることができる。   In the dental member of the present invention, the coating layer formed on the second oxide film layer includes a metal containing at least Zr, and at least one element selected from the group consisting of N, C, and O By using this compound, an ivory white color tone similar to that of an actual tooth can be obtained.

本発明の歯科用部材において、前記コーティング層は、純Ｚｒと、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなることが好ましい。前記化合物を構成する金属は、少なくともＺｒを含んでいれば、Ｚｒと他の金属との合金であってもよく、純Ｚｒであってもよいが、純Ｚｒであることにより、前記母材との電位差が小さくなり、前記第１の酸化被膜層及び前記第２の酸化被膜層にピンホールがあるときにも電位差の相違による腐食が起きにくくなる。   In the dental member of the present invention, the coating layer is preferably composed of a compound of pure Zr and at least one element selected from the group consisting of N, C, and O. The metal constituting the compound may be an alloy of Zr and another metal as long as it contains at least Zr, and may be pure Zr. Therefore, even when there are pinholes in the first oxide film layer and the second oxide film layer, corrosion due to the difference in potential difference is less likely to occur.

また、本発明の歯科用部材において、前記コーティング層は、５０〜２０００ｎｍの範囲の厚さを備えることが好ましい。前記コーティング層の厚さが５０ｎｍ未満であるときには、実際の歯に類似したアイボリーホワイトの色調を得ることができないことがある。一方、前記コーティング層の厚さが２０００ｎｍを超えるときには、製造コストが増加する。   Moreover, the dental member of this invention WHEREIN: It is preferable that the said coating layer is equipped with the thickness of the range of 50-2000 nm. When the thickness of the coating layer is less than 50 nm, an ivory white color tone similar to that of an actual tooth may not be obtained. On the other hand, when the thickness of the coating layer exceeds 2000 nm, the manufacturing cost increases.

本発明の歯科用部材の構成を示す模式的断面図。The typical sectional view showing the composition of the dental member of the present invention.

次に、添付の図面を参照しながら本発明の実施の形態についてさらに詳しく説明する。   Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

図１に示すように、本実施形態の歯科用部材１は、母材２と、母材の表面に形成されている第１の酸化被膜層３と、第１の酸化被膜層３上に形成された第２の酸化被膜層４と、第２の酸化被膜層４上に形成されたコーティング層５とを備えている。   As shown in FIG. 1, the dental member 1 of the present embodiment is formed on a base material 2, a first oxide film layer 3 formed on the surface of the base material, and the first oxide film layer 3. The second oxide film layer 4 is formed, and the coating layer 5 formed on the second oxide film layer 4 is provided.

母材２は、Ｎｉ合金、Ｔｉ、Ｔｉ合金又はステンレスからなる群から選択される１種の金属からなる。第１の酸化被膜層３は、母材２の表面が空気中で自然に酸化されることにより形成されている。   The base material 2 is made of one kind of metal selected from the group consisting of Ni alloy, Ti, Ti alloy or stainless steel. The first oxide film layer 3 is formed by naturally oxidizing the surface of the base material 2 in the air.

第２の酸化被膜層４は、表面に第１の酸化被膜層３を備える母材２をイオンプレーティング装置内に配置し、不活性ガス及び酸素の存在下に放電を行うことにより形成される。歯科用部材１では、第１の酸化被膜層３と第２の酸化被膜層４との合計の厚さが１０〜５００ｎｍの範囲となっている。第２の酸化被膜層４の形成は、例えば、次のようにして行うことができる。   The second oxide film layer 4 is formed by disposing a base material 2 having the first oxide film layer 3 on the surface in an ion plating apparatus and performing discharge in the presence of an inert gas and oxygen. . In the dental member 1, the total thickness of the first oxide film layer 3 and the second oxide film layer 4 is in the range of 10 to 500 nm. The formation of the second oxide film layer 4 can be performed, for example, as follows.

まず、図示しないイオンプレーティング装置内に、表面に第１の酸化被膜層３を備える母材２を配置し、該装置内を排気して０．５×１０−３〜０．５×１０−４Ｐａの真空とした後、不活性ガスとしてＡｒを導入して該装置内の圧力を１．０×１０−１〜１．０×１０−３Ｐａとする。 First, the base material 2 having the first oxide film layer 3 on the surface is placed in an ion plating apparatus (not shown), and the inside of the apparatus is evacuated to 0.5 × 10 −3 to 0.5 × 10 −. After a vacuum of 4 Pa, Ar is introduced as an inert gas so that the pressure in the apparatus is 1.0 × 10 −1 to 1.0 × 10 −3 Pa.

次に、母材２に０．１〜１．０ｋＶの電圧を印加して３０〜６００秒間の放電を行うことにより、第２の酸化被膜層４を形成する。第２の酸化被膜層４の厚さは、印加電圧と放電を行う時間とにより制御することができる。   Next, the second oxide film layer 4 is formed by applying a voltage of 0.1 to 1.0 kV to the base material 2 and performing a discharge for 30 to 600 seconds. The thickness of the second oxide film layer 4 can be controlled by the applied voltage and the discharge time.

コーティング層５は、少なくともＺｒを含む金属と、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなり、５０〜２０００ｎｍの範囲の厚さを備えている。本実施形態では、コーティング層５は、純ＺｒとＮ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなる。コーティング層５の形成は、例えば、次のようにして行うことができる。   The coating layer 5 is made of a compound of a metal containing at least Zr and at least one element selected from the group consisting of N, C, and O, and has a thickness in the range of 50 to 2000 nm. In the present embodiment, the coating layer 5 is made of a compound of pure Zr and at least one element selected from the group consisting of N, C, and O. The coating layer 5 can be formed as follows, for example.

まず、図示しないイオンプレーティング装置内に、第１の酸化被膜層３上に形成された第２の酸化被膜層４を備える母材２と、ターゲットとしての純Ｚｒを配置し、該装置内を排気して０．５×１０−３〜０．５×１０−４Ｐａの真空とする。 First, in an ion plating apparatus (not shown), a base material 2 including a second oxide film layer 4 formed on the first oxide film layer 3 and pure Zr as a target are arranged, and the inside of the apparatus is arranged. It exhausts and it is set as the vacuum of 0.5 * 10 < -3 > -0.5 * 10 < -4 > Pa.

次に、ＣＯ２、Ｃ２Ｈ２又はＮ２からなる群から選択される少なくとも１種のガスを前記装置内に導入して、該装置内の圧力を１．０×１０−１〜１．０×１０−３Ｐａとする。ここで、前記ガスはコーティング層５を形成する前記化合物の組成により、その種類と分圧とを適宜設定することができる。 Next, at least one gas selected from the group consisting of CO 2 , C 2 H 2 or N 2 is introduced into the device, and the pressure in the device is set to 1.0 × 10 −1 to 1. It is set to 0 × 10 −3 Pa. Here, the kind and partial pressure of the gas can be appropriately set according to the composition of the compound forming the coating layer 5.

次に、ターゲットとしての純Ｚｒに電子ビームを照射してイオン化させる一方、前記装置内にプラズマを発生させることによりイオンプレーティングを行い、コーティング層５を形成する。コーティング層５の厚さは、処理時間により制御することができる。   Next, the pure Zr as a target is ionized by irradiation with an electron beam, while ion plating is performed by generating plasma in the apparatus, thereby forming the coating layer 5. The thickness of the coating layer 5 can be controlled by the processing time.

本実施形態の歯科用部材１は、前記範囲の厚さを備える第１の酸化被膜層３及び第２の酸化被膜層４により、母材２の腐食及び母材２とコーティング層５を形成する純Ｚｒとの電位差の相違による腐食を防止することができ、コーティング層５との間で優れた密着性を得ることができる。   In the dental member 1 of the present embodiment, the base material 2 is corroded and the base material 2 and the coating layer 5 are formed by the first oxide film layer 3 and the second oxide film layer 4 having a thickness in the above range. Corrosion due to a difference in potential difference from pure Zr can be prevented, and excellent adhesion with the coating layer 5 can be obtained.

また、本実施形態の歯科用部材１は、前記組成及び前記範囲の厚さを備えるコーティング層５により、実際の歯に類似したアイボリーホワイトの色調を得ることができる。尚、前記アイボリーホワイトとは、マンセル表色系の２．５Ｙが２．５Ｙ８．７／１．０〜２．５Ｙ８．３／２．０の範囲にある色調をいう。   Moreover, the dental member 1 of this embodiment can obtain the ivory white color tone similar to an actual tooth | gear by the coating layer 5 provided with the thickness of the said composition and the said range. The ivory white refers to a color tone in which 2.5Y of the Munsell color system is in the range of 2.5Y8.7 / 1.0 to 2.5Y8.3 / 2.0.

本実施形態の歯科用部材１は、前記アイボリーホワイトの色調を備えるので、ワイヤ、ブラケット、クラスプ、差し歯、入れ歯、歯冠、歯科補綴物等の用途に好適に用いることができる。   Since the dental member 1 of the present embodiment has the ivory white color tone, it can be suitably used for applications such as wires, brackets, clasps, dentures, dentures, crowns, and dental prostheses.

１…歯科用部材、 ２…母材、 ３…第１の酸化被膜層、 ４…第２の酸化被膜層、 ５…コーティング層。   DESCRIPTION OF SYMBOLS 1 ... Dental member, 2 ... Base material, 3 ... 1st oxide film layer, 4 ... 2nd oxide film layer, 5 ... Coating layer.

Claims (3)

Ｎｉ合金、Ｔｉ、Ｔｉ合金又はステンレスからなる群から選択される１種の金属からなる母材と、該母材の表面に空気中での酸化により形成されている第１の酸化被膜層と、該第１の酸化被膜層上にイオンプレーティング装置内で酸素の存在下に放電を行うことにより、該第１の酸化被膜層との合計の厚さが１０〜５００ｎｍの範囲となるように形成された第２の酸化被膜層と、該第２の酸化被膜層上にイオンプレーティングにより形成されたコーティング層とを備える歯科用部材において、
該コーティング層は、少なくともＺｒを含む金属と、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなることを特徴とする歯科用部材。 A base material made of one metal selected from the group consisting of Ni alloy, Ti, Ti alloy or stainless steel, and a first oxide film layer formed on the surface of the base material by oxidation in air; By performing discharge in the presence of oxygen in the ion plating apparatus on the first oxide film layer, the total thickness with the first oxide film layer is in the range of 10 to 500 nm. A dental member comprising: the second oxide film layer formed; and a coating layer formed by ion plating on the second oxide film layer;
The dental member, wherein the coating layer comprises a compound of a metal containing at least Zr and at least one element selected from the group consisting of N, C, and O. 請求項１記載の歯科用部材において、前記コーティング層は、純Ｚｒと、Ｎ、Ｃ、Ｏからなる群から選択される少なくとも１種の元素との化合物からなることを特徴とする歯科用部材。   2. The dental member according to claim 1, wherein the coating layer is made of a compound of pure Zr and at least one element selected from the group consisting of N, C, and O. 3. 請求項１又は請求項２記載の歯科用部材において、前記コーティング層は、５０〜２０００ｎｍの範囲の厚さを備えることを特徴とする歯科用部材。   The dental member according to claim 1 or 2, wherein the coating layer has a thickness in the range of 50 to 2000 nm.
JP2015026099A 2015-02-13 2015-02-13 Dental member Pending JP2016146992A (en)

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PCT/JP2016/053936 WO2016129630A1 (en) 2015-02-13 2016-02-10 Dental member
TW105104292A TWI607743B (en) 2015-02-13 2016-02-15 Dental components

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6468253A (en) * 1987-09-09 1989-03-14 Union Dentaru Kk Dental metal prosthesis
JPH06133992A (en) * 1992-10-29 1994-05-17 Nikon Corp Implant for living body
JP2008086633A (en) * 2006-10-04 2008-04-17 Maruemu Works Co Ltd Orthodontic wire
JP2012509131A (en) * 2008-11-21 2012-04-19 チョエ，セオングスク Method of manufacturing orthodontic wire
JP2014161519A (en) * 2013-02-25 2014-09-08 Shintekku:Kk Dental member

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004236772A (en) * 2003-02-04 2004-08-26 Tomii Kk Implement for correction of dentition and manufacturing method for the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6468253A (en) * 1987-09-09 1989-03-14 Union Dentaru Kk Dental metal prosthesis
JPH06133992A (en) * 1992-10-29 1994-05-17 Nikon Corp Implant for living body
JP2008086633A (en) * 2006-10-04 2008-04-17 Maruemu Works Co Ltd Orthodontic wire
JP2012509131A (en) * 2008-11-21 2012-04-19 チョエ，セオングスク Method of manufacturing orthodontic wire
JP2014161519A (en) * 2013-02-25 2014-09-08 Shintekku:Kk Dental member

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