JP2641536B2 - Dental composite metal material - Google Patents
Dental composite metal materialInfo
- Publication number
- JP2641536B2 JP2641536B2 JP63296341A JP29634188A JP2641536B2 JP 2641536 B2 JP2641536 B2 JP 2641536B2 JP 63296341 A JP63296341 A JP 63296341A JP 29634188 A JP29634188 A JP 29634188A JP 2641536 B2 JP2641536 B2 JP 2641536B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- tooth
- metal material
- composite metal
- metal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、動揺歯の固定や前歯部欠損歯補綴に使用す
る補綴修復用の歯科用複合金属材料に関する。Description: TECHNICAL FIELD The present invention relates to a dental composite metal material for restoration of a prosthesis, which is used for fixing oscillating teeth and for prosthesis having a missing front tooth.
従来、欠損歯や歯周病による動揺歯の治療は、例えば
前者の場合、歯欠部分に人工歯を媒体として隣接歯に接
着して架橋する所謂アドヒュージョンブリッジ、クラウ
ンブリッジやクラスプのような形態を採るとか、あるい
は後者の場合には、接着性レジンで両側の健全歯に連結
固定する等の方法がある。Conventionally, in the case of the former, for example, in the case of the former, treatment of a missing tooth or an oscillating tooth due to periodontal disease is performed by bonding an artificial tooth as a medium to a neighboring tooth and bridging the adjacent tooth to form a so-called ad fusion bridge, crown bridge or clasp. In the latter case, there is a method of connecting and fixing to healthy teeth on both sides with an adhesive resin.
このような従来技術によると、前者の隣接歯にセメン
トで接着する架橋法は、両側の支持歯を切削し、全部を
被覆歯とすることが多いために健全歯の寿命が短縮され
る問題がある。According to such prior art, the former bridging method, in which cement is bonded to adjacent teeth, involves cutting the supporting teeth on both sides and making all of them covered teeth, thus shortening the life of healthy teeth. is there.
また、良好な適合が得られないとその周辺部は不潔域
となって歯周病患の病因を招来し、補綴物を浮き上がら
せ、適切な咬合状態が得られないという問題がある。In addition, if a good fit is not obtained, the surrounding area becomes a dirty area, causing the etiology of periodontal disease, causing the prosthesis to float, and a proper occlusal state cannot be obtained.
つぎに、後者の接着性レジンで両側の支持歯に連結固
定する方法は、普通咬合時は50Kg以上の強力な力が加わ
るが、歯牙および歯肉の緩衝作用によって適切な咬合は
行われるが、この方法は接着性レジンで両側の支持歯に
強化に固定されるために力が分散されず、同一個所に集
中的な応力が掛かる問題がある。その結果、接合個所の
一部に経時的疲労が起こって、支台歯の揺動や接合個所
の破損が生じたり、歯肉の炎症を助長する問題がある。Next, the latter method of connecting and fixing to the supporting teeth on both sides with the adhesive resin applies a strong force of 50 kg or more during normal occlusion, but appropriate occlusion is performed by the buffering action of teeth and gingiva, The method has a problem in that since the adhesive resin is fixed to the supporting teeth on both sides in a reinforcing manner, the force is not dispersed, and concentrated stress is applied to the same place. As a result, there is a problem that temporal fatigue occurs in a part of the joint, which causes the abutment tooth to swing, the joint to be damaged, and the promotion of gingival inflammation.
そこで、近時、Ni−Crの金属網と金属板の複合材によ
るプレートを、欠損歯や動揺歯等の治療歯とのその隣接
歯の舌面側の所定の形状に圧印法によって形成し、その
形成したプレートを接着性レジンで連結固着する方法が
あり、咬合時の応力の分布が良いという特徴がある。Therefore, recently, a plate made of a composite material of a metal mesh of Ni-Cr and a metal plate is formed by a coining method in a predetermined shape on a lingual surface side of adjacent teeth with a treatment tooth such as a missing tooth or an unsteady tooth, There is a method of connecting and fixing the formed plate with an adhesive resin, which is characterized by a good stress distribution at the time of occlusion.
ところが、このプレートは、金属網と金属板が強固に
密着している必要があり、しかも歯の舌面側の所定の形
状に形成できなければならず、さらに、歯との密着性、
加工性および保持強度も良くなければならないが、それ
らの点に問題がある。However, in this plate, the metal mesh and the metal plate need to be firmly adhered to each other, and must be formed in a predetermined shape on the lingual side of the teeth.
Workability and holding strength must also be good, but these are problematic.
その大きな原因は、金属網と金属板の素材の特性と、
金属網の構成にありその構成は網の交差部では一方の線
材は浮いてしまい、凹凸も大きいために密着性が悪いも
のである。The major cause is the characteristics of the material of the metal net and the metal plate,
The structure of the metal mesh is such that one wire material floats at the intersection of the meshes, and the unevenness is large, so that the adhesion is poor.
本発明は、金属板の片面に金属網を接合した歯科用複
合金属材料において、Au10〜25wt％、Pd15〜35wt％、Ag
40〜65wt％、Cu5〜15wt％の組成範囲の合金を、厚さ0.0
5〜0.5mmの合金板とし、その片面に上記組成範囲の合金
のエクスパンド網を重ね合わせ、600℃以上の温度で熱
間接合して冶金的に一体化したことを特徴とする。The present invention relates to a dental composite metal material in which a metal mesh is joined to one surface of a metal plate, wherein Au10 to 25 wt%, Pd15 to 35 wt%, Ag
An alloy with a composition range of 40 to 65 wt% and Cu5 to 15 wt% has a thickness of 0.0
It is characterized in that it is an alloy plate of 5 to 0.5 mm, an expanded network of an alloy having the above composition range is superimposed on one surface, and is joined by metallurgy by hot joining at a temperature of 600 ° C. or more.
以上の構成によると、上記複合金属材料を欠損歯や動
揺歯等の治療歯とその隣接歯の舌面側の所定の形状に形
成し、エクスパンド網を歯の舌面側に接着性レジン等で
密着させることにより治療歯を補綴修復することができ
ることになる。According to the above configuration, the composite metal material is formed into a predetermined shape on the lingual surface side of a treatment tooth such as a missing tooth or an oscillating tooth and the adjacent tooth, and an expanded mesh is formed on the lingual surface side of the tooth with an adhesive resin or the like. The close contact makes it possible to restore the treated tooth to the prosthesis.
ここで、合金成分をAu−Pd−Ag−Cuの４元合金として
それぞれの量を限定した理由は、Au−Pd−Agの３元合金
でも成形性、加工性、支持強度および耐久性にすぐれた
歯科材料であり、さらに合金板とエクスパンダ網との接
合加工性も良いが、Cuを添加することによりさらに硬さ
および強度の改良が得られるためである。ただし、Cuが
5wt％未満では硬さおよび強度の大きな改良が得られ
ず、15wt％を超える添加では口腔内における耐蝕性が問
題となるためである。Here, the reason for limiting the amount of each of the alloy components as a quaternary alloy of Au-Pd-Ag-Cu is that even a ternary alloy of Au-Pd-Ag is excellent in formability, workability, support strength and durability. This is a dental material, and has good joining workability between the alloy plate and the expander net, but by adding Cu, the hardness and strength can be further improved. However, if Cu
If the content is less than 5 wt%, no significant improvement in hardness and strength is obtained, and if the content exceeds 15 wt%, corrosion resistance in the oral cavity becomes a problem.
また、基材の厚さを0.05〜0.5mmとした理由は、0.05m
m未満では欠損歯または動揺歯を支える強度が不足する
ためであり、0.5mmを超えると補綴修復加工が難しくな
るためである。The reason for setting the thickness of the substrate to 0.05 to 0.5 mm is 0.05 m
If the diameter is less than m, the strength for supporting the missing tooth or the oscillating tooth is insufficient, and if it exceeds 0.5 mm, the prosthetic restoration processing becomes difficult.
第１実施例 Au120g、Pd200g、Ag580g、Cu100gをタンマン炉で溶
解、鋳造し、この12wt％Au−20wt％Pd−58wt％Ag−10wt
％Cuの合金を切削後、圧延加工と焼鈍を繰り返し行って
厚さ0.1mmと0.15mmの合金板とした。First Example 120 g of Au, 200 g of Pd, 580 g of Ag, and 100 g of Cu were melted and cast in a Tamman furnace, and 12 wt% Au-20 wt% Pd-58 wt% Ag-10 wt%
After cutting the alloy of% Cu, rolling and annealing were repeated to obtain alloy plates having thicknesses of 0.1 mm and 0.15 mm.
この0.1mmの合金板を第１図に示す如くラス加工によ
ってエクスパンド網１に仕上げた後、幅80mm、長さ120m
mの大きさに裁断した。After finishing this 0.1 mm alloy plate into an expanded net 1 by lathing as shown in FIG. 1, the width is 80 mm and the length is 120 m.
It was cut to the size of m.
次に、0.15mmの合金板を幅80mm、長さ120mmの大きさ
に裁断して基材２とし、上記のエクスパンド網１に軽い
力を加えて重ね合わせ、雰囲気電気炉中でN2とH2の混合
ガスを流しながら900℃の温度に加熱し、拡散処理を行
って複合材料Ａを得た。Next, a 0.15 mm alloy plate was cut into a size of 80 mm in width and 120 mm in length to obtain a base material 2. The expanded net 1 was overlaid with a slight force, and N 2 and H 2 were placed in an atmosphere electric furnace. While flowing the mixed gas of No. 2, the mixture was heated to a temperature of 900 ° C., and diffusion treatment was performed to obtain a composite material A.
この複合材料Ａを幅5mm、長さ12mmに裁断し、この複
合材料Ａとアルミナ質基板３を第２図および第３図に示
す如く接着性レジン４により接合して第３図に示す引き
剥がしテストによって接合強度を測定して表に示した。The composite material A is cut into a width of 5 mm and a length of 12 mm, and the composite material A and the alumina substrate 3 are joined by an adhesive resin 4 as shown in FIGS. 2 and 3, and peeled off as shown in FIG. The bonding strength was measured by the test and shown in the table.
第２実施例 Au200g、Pd250g、Ag480g、Cu70gをタンマン炉で溶
解、鋳造し、以下上記実施例１と同様の工程で20wt％Au
−25wt％Pd−48wt％Ag−7wt％Cuの合金を切削後、圧延
加工と焼鈍を繰り返して板の厚さを基材用0.3mm、ラス
加工用0.2mmから複合材料Ｂを上記実施例と同様の工程
で得た。Second Example 200 g of Au, 250 g of Pd, 480 g of Ag, and 70 g of Cu were melted and cast in a Tamman furnace, and the same process as in Example 1 described above was performed to obtain 20 wt% Au.
After cutting an alloy of -25wt% Pd-48wt% Ag-7wt% Cu, rolling and annealing were repeated to make the composite material B from 0.3mm for the base material and 0.2mm for the lath processing as in the above examples. Obtained in a similar step.
以下同様の方法によって複合材料Ｃ〜Ｇを作った。 Hereinafter, composite materials C to G were produced by the same method.
なお、比較のために合金板だけの材料Ｈ、12wt％Au−
20wt％Pd−58wt％Ag−10wt％Cuの合金板と、材料Ｉ、20
wt％Au−25wt％Pd−48wt％Ag−7wt％Cuの合金板を作っ
て接合強度を比較した。For comparison, the material H for the alloy plate only, 12 wt% Au-
Alloy plate of 20wt% Pd-58wt% Ag-10wt% Cu and material I, 20
Alloy plates of wt% Au-25wt% Pd-48wt% Ag-7wt% Cu were prepared and the bonding strength was compared.
〔発明の効果〕 以上詳細に説明した本発明によると、金属板に金属網
を接合した歯科用複合金属材料において、金属板および
金属網をAu−Pd−Ag−Cu合金とし、さらに金属網の構造
をエクスパンド網としたことにより、この網の表面が平
滑面であるために金属板に対する金属網の接合状態が強
固となって接合強度の大きい複合材料が得られることに
なり、合金成分の特性と併せて成形性、加工性、耐久
性、支持強度等の面で歯科材料として優れた特性を有す
る材料となり、そかもエクスパンド網の表面が平滑面で
あるために歯の舌側面に対する接着性も非常に良好とな
る効果を有する。 [Effects of the Invention] According to the present invention described in detail above, in a dental composite metal material in which a metal mesh is joined to a metal plate, the metal plate and the metal mesh are made of an Au-Pd-Ag-Cu alloy. By using an expanded mesh structure, the surface of the mesh is smooth, so that the joining state of the metal mesh to the metal plate is strong, and a composite material with high joining strength can be obtained. In addition, it becomes a material with excellent characteristics as a dental material in terms of moldability, workability, durability, support strength, etc., and because the surface of the expanded mesh is a smooth surface, adhesion to the tongue side of the tooth is also improved It has a very good effect.
第１図は金属網の拡大斜視図、第２図は複合材料をアル
ミナ質基板に結合した状態の拡大斜視図、第３図は拡大
側面図である。 １……エクスパンド網 ２……基材FIG. 1 is an enlarged perspective view of a metal net, FIG. 2 is an enlarged perspective view showing a state where a composite material is bonded to an alumina substrate, and FIG. 3 is an enlarged side view. 1 ... expanded net 2 ... base material
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−60280（ＪＰ，Ａ) 特開 昭57−108233（ＪＰ，Ａ) 特公 昭60−48579（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-60280 (JP, A) JP-A-57-108233 (JP, A) JP-B-60-48579 (JP, B2)
Claims (1)
合金属材料において、 Au10〜25wt％、Pd15〜35wt％、Ag40〜65wt％、Cu5〜15w
t％の組成範囲の合金を、厚さ0.05〜0.5mmの合金板と
し、その片面に上記組成範囲の合金のエクスパンド網を
重ね合わせ、600℃以上の温度で熱間接合して冶金的に
一体化したことを特徴とする歯科用複合金属材料。1. A dental composite metal material in which a metal mesh is joined to one side of a metal plate, comprising 10 to 25% by weight of Au, 15 to 35% by weight of Pd, 40 to 65% by weight of Ag, and 5 to 15% of Cu.
An alloy with a composition range of t% is made into an alloy plate with a thickness of 0.05 to 0.5 mm, an expanded mesh of the alloy with the above composition range is superimposed on one side, and hot-bonded at a temperature of 600 ° C or higher to be metallurgically integrated. A composite metal material for dental use, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63296341A JP2641536B2 (en) | 1988-11-25 | 1988-11-25 | Dental composite metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63296341A JP2641536B2 (en) | 1988-11-25 | 1988-11-25 | Dental composite metal material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02147176A JPH02147176A (en) | 1990-06-06 |
| JP2641536B2 true JP2641536B2 (en) | 1997-08-13 |
Family
ID=17832295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63296341A Expired - Fee Related JP2641536B2 (en) | 1988-11-25 | 1988-11-25 | Dental composite metal material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2641536B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6288917B2 (en) * | 2013-02-18 | 2018-03-07 | 石福金属興業株式会社 | Dental casting alloy and method for producing the same |
-
1988
- 1988-11-25 JP JP63296341A patent/JP2641536B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02147176A (en) | 1990-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |