JP2013138752A - Artificial tooth having keeping mechanism - Google Patents
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- JP2013138752A JP2013138752A JP2011290393A JP2011290393A JP2013138752A JP 2013138752 A JP2013138752 A JP 2013138752A JP 2011290393 A JP2011290393 A JP 2011290393A JP 2011290393 A JP2011290393 A JP 2011290393A JP 2013138752 A JP2013138752 A JP 2013138752A
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歯科補綴装置である義歯に排列して使用する既製人工歯、またはインプラント上部構造体として使用する既製人工歯に関する。 The present invention relates to a ready-made artificial tooth used by arranging in a denture, which is a dental prosthesis device, or a ready-made artificial tooth used as an implant superstructure.
既製人工歯には、義歯床材料との化学的接着が期待できるアクリルレジン歯と、化学的接着が期待できないウレタン系硬質レジン歯と陶歯がある。しかし、化学的接着の期待できない硬質レジン歯や陶歯の場合は、義歯床材料の収縮や変形により人工歯歯頚部と床用レジンとの間に間隙が生じるため、咀嚼を繰り返すことなどによる外力により、人工歯が義歯床から脱落することもしばしば起こっている。特に人工歯の歯冠長径を短く調整した場合に、その可能性が高くなる。 The ready-made artificial teeth include acrylic resin teeth that can be expected to be chemically bonded to the denture base material, and urethane-based hard resin teeth and porcelain teeth that cannot be expected to be chemically bonded. However, in the case of hard resin teeth and porcelain teeth that cannot be expected to be chemically bonded, there is a gap between the artificial tooth neck and the floor resin due to the shrinkage and deformation of the denture base material, so external forces due to repeated chewing, etc. As a result, the artificial tooth often falls off the denture base. In particular, the possibility increases when the crown diameter of the artificial tooth is adjusted to be short.
また、義歯の使用時すなわち咀嚼による外力や義歯床材料の収縮や変形により人工歯歯頚部と義歯床材料との間隙が生じることもある。その間隙に停滞する食物残渣がバクテリアの温床となり、人工歯歯頚部が黒い汚れの輪となって審美性を阻害するばかりか衛生的にも誤嚥性肺炎などの疾患につながる要因ともなっている。 In addition, a gap between the artificial tooth neck and the denture base material may occur during use of the denture, that is, due to external force due to mastication or contraction or deformation of the denture base material. The food residue stagnating in the gap becomes a hotbed of bacteria, and the artificial tooth neck becomes a ring of black dirt, which not only inhibits aesthetics but also leads to diseases such as aspiration pneumonia hygienically.
既製人工歯と義歯床材料の接合については、歯科医や歯科技工士が独自の形状に機械的維持形状を切削加工し、さらには化学的接着を期待できるプライマー処理と接着材を塗布して使用するなど作業効率を大きく損ね生産性を低減する要因になっている。効率的に良質な義歯を患者に提供する必要がある現状にあって、歯科医や歯科技工士の負担を軽減する人工歯が望まれている。 For the bonding of ready-made artificial teeth and denture base materials, dentists and dental technicians cut mechanically maintained shapes into unique shapes, and then apply primer treatment and adhesives that can be expected to be chemically bonded This is a factor that greatly reduces work efficiency and reduces productivity. In the current situation where it is necessary to efficiently provide good dentures to patients, artificial teeth that reduce the burden on dentists and dental technicians are desired.
特開2001−268040には、各種合成樹脂の義歯床との接着が良好であって、咬合や咀嚼を繰り返しても長期にわたり義歯床から脱落することなく、しかも審美性を備えた人工歯が提案されている。 Japanese Patent Laid-Open No. 2001-268040 proposes an artificial tooth that has good adhesion to a denture base of various synthetic resins and does not fall off from the denture base over a long period of time even after repeated occlusion and mastication, and has esthetic properties. Has been.
しかしながら、化学的な接着だけでは咬合力や義歯の変形に対しては効果が低いうえ、近年になり多用されているポリアミドナイロン樹脂、ナイロン系樹脂、ナイロンポリアミド樹脂やポリアミド+アクリルの混合体などによる義歯床材料に対しては効果が低いと考えられ、補助的に維持形状を加工して人工歯を使用しなければ人工歯の脱落という問題が生じるため、貫通孔の加工が避けられない現状がある。 However, chemical bonding alone has a low effect on occlusal force and denture deformation, and is due to polyamide nylon resin, nylon resin, nylon polyamide resin, and polyamide + acrylic mixtures that are widely used in recent years. The effect on denture base materials is considered to be low, and if the artificial teeth are not used after supplementary processing of the maintenance shape, there will be a problem that the artificial teeth will fall off. is there.
特許第3819717号には、咀嚼等による咬合力により力学的作用を繰り返して受けても義歯床材料のめくれや、剥離、破損が生じ難く人工歯の脱落の恐れが少ないとして、人工歯の底面に義歯床材料が流入する貫通孔を設け、外周側壁に義歯床材料が流入する横向きの凹溝を設けてなる人工歯とある。 In Japanese Patent No. 3819717, the denture base material is not easily turned up, peeled off or damaged even if it is repeatedly subjected to mechanical action due to occlusal force such as mastication. There is an artificial tooth in which a through hole into which a denture base material flows is provided and a laterally recessed groove into which the denture base material flows in is provided on an outer peripheral side wall.
しかしながら、小さな人工歯の側面に対しては貫通孔が細く、壁面の凹溝も形成し難いことから、形成に労力を費やすことにもなる。通常、義歯はワックスで作製した床部に人工歯を排列し、これを義歯床材料に置換するが、その過程ではスチームクリーナーやお湯などを使用してワックスを除去して床用材料に置換する作業が必須である。その際、貫通孔が細い場合は、ワックスが貫通孔に残存する可能性があり、人工歯の維持に悪影響を及ぼすこととなる。ワックスの除去(脱漏)後の操作として、義歯床材料の填入や注入を行うが、義歯床材料の確実な流入が困難であるばかりか、求められる効率化による作業時間の短縮を図ることは困難といえる。また、人工歯の排列スペースが少ない場合、すなわち顎間距離の少ない症例では、人工歯の歯冠長径を短く調整することが多々あるが、その場合においても人工歯に切削加工した貫通孔が失われることにもなり、その効果が期待できない。義歯床材料の収縮や変形により床用レジンと人工歯との間に間隙が生じるため、間隙に停滞する食物残渣がバクテリアの温床となり、人工歯歯頚部が黒い汚れの輪となって審美性を阻害するばかりか衛生的にも悪影響を及ぼし誤嚥性肺炎などの疾患につながる要因となっている。 However, since the through hole is thin on the side surface of the small artificial tooth and it is difficult to form the concave groove on the wall surface, labor is required for formation. Usually, dentures place artificial teeth on the floor made of wax and replace it with denture base material. In the process, the wax is removed and replaced with floor material using steam cleaner or hot water. Work is essential. At this time, if the through hole is thin, wax may remain in the through hole, which adversely affects the maintenance of the artificial tooth. As the operation after wax removal (de-leakage), the denture base material is filled and injected, but it is difficult to ensure the inflow of the denture base material, and it is not possible to shorten the work time by the required efficiency. It can be said that it is difficult. In addition, in cases where the arrangement space for the artificial teeth is small, that is, in cases where the distance between the jaws is small, the crown diameter of the artificial teeth is often adjusted to be short, but even in this case, the through-holes cut into the artificial teeth are lost. The effect is not expected. Because the denture base material shrinks and deforms, a gap is created between the denture base resin and the artificial tooth. In addition to inhibiting, it has a negative effect on hygiene and is a factor leading to diseases such as aspiration pneumonia.
実用新案登録番号第3064138号によれば、人工歯基底面に有底の柱状孔が設けられた人工歯であって、柱状孔に義歯床材料を充填させることで義歯床に突起部が形成され、該突起部により義歯床との接着面積を増加し、人工歯と義歯床との分離を阻止する機械的な強化構造が生じるようにしてなるとあるが、この場合も人工歯を排列するスペースが少ない場合は人工歯基底部を削除する必要があるため効果的な柱状孔が消失することが多く、再度切削加工を行う必要がある。 According to Utility Model Registration No. 3064138, an artificial tooth having a bottomed columnar hole on the base of the artificial tooth, and a protrusion is formed on the denture base by filling the columnar hole with a denture base material. The protrusions increase the adhesion area with the denture base, resulting in a mechanical reinforcing structure that prevents separation of the artificial tooth and the denture base. In this case as well, there is a space for arranging the artificial teeth. When the number is small, it is necessary to delete the base portion of the artificial tooth, so that effective columnar holes often disappear, and it is necessary to perform cutting again.
このような維持孔を有する人工歯も市販されているが、容積の小さな人工歯に貫通孔を形成しているため、貫通孔の直径は小さく、流蝋不足や石膏分離材の巻き込みなどにより人工歯脱落の要因となるばかりか、義歯床材料の填入あるいは注入などが行いにくく、実用的には貫通孔を拡大するためには再加工を行う必要があった。 Artificial teeth having such maintenance holes are also commercially available, but since the through-holes are formed in artificial teeth with a small volume, the diameter of the through-holes is small and artificial due to lack of wax or gypsum separating material involved. In addition to causing tooth dropout, it is difficult to insert or inject denture base material, and practically, reworking is necessary to enlarge the through hole.
非特許文献1のエステショット技工マニュアルには、人工歯の加工例が紹介されているがこの加工に要する時間は、総義歯の場合で28本の人工歯に対して切削加工を行う必要があるなど義歯作製の上では大きな負担となっている。 An example of artificial tooth processing is introduced in the Este Shot Technical Manual of Non-Patent Document 1, but the time required for this processing is a complete denture, and it is necessary to cut 28 artificial teeth It is a big burden in the production of dentures.
本発明は、たわみが大きく柔軟性が高く破折しにくいポリアミドナイロン、強度が強く変色が少ないポリカーボネートやポリエステルとアクリリックレジンなどの義歯床材料と機械的維持を向上させ、歯頸部
のマイクロリーケージ(微少漏えい)による変着色の抑制し審美障害を軽減する人工歯を提供することを課題とする。
The present invention improves denture base materials such as polyamide nylon, which is flexible and flexible and difficult to break, polycarbonate and polyester and acrylic resin with high strength and low discoloration, and improves mechanical maintenance, It is an object of the present invention to provide an artificial tooth that suppresses discoloration due to microleakage and reduces aesthetic disorders.
上記課題を解決するため人工歯外周側壁先端部の義歯床材料との接合部には、突起部を設ける。外周側壁先端部に突起部を設けることでマイクロリーケージの発生を軽減することが可能である。
また、人工歯の内側には支柱部を設け、支柱周囲には円周状の溝部を設けることで、義歯床材料との広い接着面積が確保でき、義歯の側方応力に抵抗し人工歯と義歯床材料との機械的維持力を向上させるものである。
In order to solve the above-mentioned problem, a protrusion is provided at the joint of the artificial tooth outer peripheral side wall with the denture base material. It is possible to reduce the occurrence of microleakage by providing a protrusion at the tip of the outer peripheral side wall.
In addition, by providing a column part inside the artificial tooth and providing a circumferential groove around the column, it is possible to secure a wide adhesion area with the denture base material, resisting the side stress of the artificial tooth and It improves the mechanical maintenance force with the denture base material.
人工歯外周側壁先端とは、すなわち人工歯の歯頚部であり義歯床材料との接合部にあたるが、義歯の汚染による審美的障害が生じた場合には使用者である患者が、最も不快に感じる部分となる。この先端部分には、外壁側先端に傾斜のある突起部を付与することで義歯床材料が人工歯を包皮する効果を高めるとともに、義歯床材料との間に間隙が生じることを軽減し、審美的障害をも軽減する。 The tip of the outer peripheral side wall of the artificial tooth is the cervical part of the artificial tooth, which is the joint with the denture base material, but the patient who is the user feels the most uncomfortable when aesthetic disorders occur due to denture contamination. Part. The tip part is provided with a sloped protrusion on the tip on the outer wall side to enhance the effect of denture base material for covering artificial teeth and to reduce the formation of a gap with the denture base material. To alleviate disability.
また、本発明の人工歯をインプラント上部構造体として使用する場合も同様に、インプラント支台部と人工歯を接合させる媒体である各種合成樹脂材料との高い接着力が維持でき、人工歯と歯頚部の審美的障害を軽減することが可能である。 Similarly, when the artificial tooth of the present invention is used as an implant superstructure, it is possible to maintain a high adhesive force between various synthetic resin materials as a medium for joining the implant abutment and the artificial tooth. It is possible to reduce cervical aesthetic disorders.
人工歯内側の支柱部は空洞であってもよく、人工歯外周側壁と同等の長さあるいはそれよりも短くても長くても良い。また、支柱部の側面に凹凸を付与することも可能である。人工歯の排列スペースが少ない場合は、人工歯の長径を短く調整する必要が生じるが、この支柱を外壁とともに切除しても義歯床材料との維持を確保することが可能であり、この支柱に対して垂直方向に穿孔加工することで義歯床材料に対する人工歯の維持力を更に向上させることが可能である。支柱部は、空洞とすることで長径調整のための切除加工や穿孔加工の負担を軽減することも可能である。 The support | pillar part inside an artificial tooth may be a cavity, and may be the same length as an artificial tooth outer peripheral side wall, or it may be shorter or longer than it. Moreover, it is also possible to give unevenness to the side surface of the support column. When the artificial tooth arrangement space is small, it is necessary to adjust the length of the artificial tooth to be short.However, even if this post is cut with the outer wall, it is possible to ensure the maintenance of the denture base material. On the other hand, it is possible to further improve the maintenance force of the artificial tooth with respect to the denture base material by drilling in the vertical direction. It is possible to reduce the burden of excision processing and drilling processing for adjusting the long diameter by making the support column hollow.
また、本発明の人工歯を用いた場合、人工歯基底部は義歯床材料に挟み込まれるような構造となるので、維持力を向上させる補助的な穿孔は支柱に施すのみでも良く、穿孔が人工歯外周側面に及ぶこともなく審美的にも有利となる。注入法で使用する際には人工歯基底面にスリットを施すことで義歯床材料の確実な充填を支援する。 Further, when the artificial tooth of the present invention is used, the artificial tooth base is structured so as to be sandwiched between the denture base materials. Therefore, auxiliary drilling for improving the maintenance force may be performed only on the support column. It does not reach the outer peripheral side of the tooth and is aesthetically advantageous. When used in the injection method, a slit is provided on the base surface of the artificial tooth to assist the reliable filling of the denture base material.
本発明の人工歯は、支柱部および支柱周囲の溝空間を有する内部構造を備え、人工歯長径の調整によらず義歯床材用との機械的維持力を確保する。即ち、貫通孔などの再加工を最小限度に抑えることができるなど義歯作製の効率化が可能となる。また、人工歯外周壁先端に突起部を設けることでマイクロリーケージによる義歯床材料との接合部の汚染を軽減し審美的影響を軽減する。 The artificial tooth according to the present invention has an internal structure having a column portion and a groove space around the column, and ensures a mechanical maintenance force with respect to the denture base material regardless of adjustment of the length of the artificial tooth. In other words, it is possible to improve the efficiency of denture production by minimizing the reworking of through holes and the like. Further, by providing a protrusion at the tip of the outer peripheral wall of the artificial tooth, contamination of the joint with the denture base material due to microleakage is reduced, and the aesthetic influence is reduced.
a外周側壁部
b外周側壁先端部
cプロトルージョン部
d支柱部
e溝部
f中央孔部
g外側軸面
h基底面
A歯冠長径調整位置
B支柱部穿孔加工位置
Cスリット加工位置
D穿孔加工位置
1臼歯人工歯
2前歯人工歯
3義歯床
aOuter peripheral side wall
b Tip of outer peripheral side wall
cProtrusion part
d prop
e Groove
f Center hole
g Outer shaft surface
h Base surface
A Crown length adjustment position
B strut drilling position
C slit machining position
D Drilling position 1 molar artificial tooth 2 anterior artificial tooth 3 denture base
本発明の実施例を図面に依拠して説明する。なお、本発明は実施例に限定されるものではない。 Embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to an Example.
本発明の人工歯(1)の構造は、図1断面図で示す外周側壁部(a)と支柱部(d)から成り、支柱部(d)の周囲には溝部(e)が構成されている。支柱部(d)は、中央孔部(f)を有していてもよい。また、外周側壁先端部(b)には突起部(c)を有し、突起部(c)は人工歯における外周側壁先端部(b)全体に形成されている。 The structure of the artificial tooth (1) of the present invention comprises an outer peripheral side wall (a) and a support column (d) shown in the cross-sectional view of FIG. 1, and a groove (e) is formed around the support column (d). Yes. The support column (d) may have a central hole (f). Further, the outer peripheral side wall tip (b) has a protrusion (c), and the protrusion (c) is formed on the entire outer peripheral side wall tip (b) of the artificial tooth.
図2に示すとおり、本発明の外周側壁先端部(b)の突起部(c)は、外側軸面に対して2〜98度の角度で形成されており、特に40〜75度が好ましく、突起部の基底面からの高さは外側軸面方向に0.25mm以上とする。また、突起部の基底面方向の最大部の長さは0.5mmから1.5mmであるのが好ましい。突起部について、形状は任意であり、基底面方向に複数あってもよい。その際、突起部の外側面は外側軸面に平行であることが好ましい。 As shown in FIG. 2, the protrusion (c) of the outer peripheral side wall tip (b) of the present invention is formed at an angle of 2 to 98 degrees with respect to the outer shaft surface, particularly preferably 40 to 75 degrees, The height from the basal plane of the protrusion is set to 0.25 mm or more in the outer axial direction. Further, the length of the maximum portion of the protrusion in the basal plane direction is preferably 0.5 mm to 1.5 mm. The shape of the protrusion is arbitrary, and there may be a plurality of protrusions in the basal plane direction. In that case, it is preferable that the outer surface of the protrusion is parallel to the outer shaft surface.
本発明の人工歯(1)は、支柱部(d)を備えるが、図1で示す破線(A)で切除して使用することが可能である。また、支柱部(d)は人工歯の容積が確保できる臼歯の場合には中央孔部(f)を有していてもよく、容積が確保できない前歯や小臼歯の場合は空洞構造でなくともよい。
人工歯長径を人工歯外周側壁部の破線(A)で切除して使用する場合、支柱部(d)も切除することになるが、支柱部(d)には長径に応じて破線(B)に相当する部分に歯科医や歯科技工士が穿孔加工して維持効果を更に高めることが可能である。
Although the artificial tooth (1) of the present invention includes a support column (d), it can be used after being cut along the broken line (A) shown in FIG. Further, the support column (d) may have a central hole (f) in the case of molars that can secure the volume of artificial teeth, and may not have a hollow structure in the case of anterior teeth or premolars that cannot secure the volume. Good.
When the artificial tooth long diameter is cut and used along the broken line (A) on the outer peripheral side wall of the artificial tooth, the column (d) is also cut, but the column (d) has a broken line (B) depending on the long diameter. It is possible to further enhance the maintenance effect by perforating a dentist or dental technician in a portion corresponding to.
本発明の人工歯(1)の溝部(e)および中央孔部(f)の構造は、義歯作製時の蝋が除去しやすく、さらには義歯床材料の填入あるいは注入の際に気泡の巻き込みを軽減するラウンド構造が好ましい。義歯床材料は、義歯床用加熱重合レジンや歯科用常温重合レジンのほか、歯冠用加熱重合レジン,歯冠用硬質レジンあるいはコンポジットレジンでもよい。 The structure of the groove part (e) and the central hole part (f) of the artificial tooth (1) of the present invention facilitates removal of the wax at the time of denture preparation, and further entraps bubbles during filling or injection of the denture base material. A round structure that reduces this is preferable. The denture base material may be a heat-curing resin for a denture base, a room-temperature polymer resin for dental use, a heat-polymerization resin for a crown, a hard resin for a crown, or a composite resin.
本発明の人工歯は、図11で示すとおり義歯床材料(3)の挟み込み効果により機械的維持を確保する。化学的接着を併用する場合は、人工歯外周側壁先端部(b)、突起部(c)や支柱部(d)の全面に接着性プライマーや接着材を塗布して人工歯の義歯床材料との接着力の強化を図ることも可能である。 The artificial tooth of the present invention ensures mechanical maintenance by the sandwiching effect of the denture base material (3) as shown in FIG. When chemical bonding is used in combination, an adhesive primer or adhesive is applied to the entire surface of the artificial tooth outer peripheral side wall tip (b), protrusion (c), or strut (d) to create a denture base material for artificial teeth. It is also possible to reinforce the adhesive strength.
本発明の人工歯に対して更なる維持効果を期待する場合は、図7,9に示すように、人工歯外周側壁(a)に1本または数本の貫通孔やスリットを加工して使用することも可能である。 When a further maintenance effect is expected for the artificial tooth of the present invention, as shown in FIGS. 7 and 9, one or several through-holes and slits are processed and used on the outer peripheral side wall (a) of the artificial tooth. It is also possible to do.
また、実施例4として図12〜17に示すとおり、本発明の人工歯は支柱に凸部を付与することで、義歯床材料とのより広い接着面積を確保し、巻き込み効果を高めることで、義歯床材料との接着強度を高めることができる。 Moreover, as shown in FIGS. 12 to 17 as Example 4, the artificial tooth of the present invention secures a wider adhesion area with the denture base material by giving a protrusion to the support, and enhances the entrainment effect. The adhesive strength with the denture base material can be increased.
なお、本発明の人工歯は、上記の実施形態の構成に限定されるものではなく、図10に示すように臼歯部では支柱部(d)を内部空洞の1/3程度まで短く設定したシェル状の形状に変更が可能である。
シェル状構造とすることで、本発明の人工歯をインプラントの上部構造として使用する場合、インプラントフィクスチャーを任意の位置で被覆することが可能となり、対合関係の確立が容易となる。
The artificial tooth of the present invention is not limited to the configuration of the above-described embodiment. As shown in FIG. 10, in the molar portion, the strut portion (d) is set to be about 1/3 of the internal cavity. The shape can be changed.
By using the shell-like structure, when the artificial tooth of the present invention is used as an upper structure of an implant, it is possible to cover the implant fixture at an arbitrary position, and it is easy to establish a pairing relationship.
本発明の人工歯の形状は、前歯部と臼歯部においてその形状を限定するものではない。 The shape of the artificial tooth of the present invention is not limited to the shape of the front tooth portion and the molar portion.
平均値咬合器の運道路に調和する人工歯の形状とは、平均値咬合器に調和するよう調製された前歯切縁、犬歯尖頭と臼歯咬合面形態を有する人工歯で噛み合せの調整の必要がない、もしくはかみ合わせ調製量の少ない人工歯を指し、義歯の患者の大多数に適応できるものである。咬合器とは、患者の顎運動や咬合を口腔内から採得した印象から作製した模型上で再現するものである。 The shape of the artificial tooth that harmonizes with the average articulator's road is the need to adjust the meshing with an artificial tooth that has an anterior tooth incision, a canine cusp and a molar occlusal surface prepared to harmonize with the average articulator This refers to an artificial tooth that has no or little meshing preparation and can be applied to the majority of denture patients. An articulator reproduces a patient's jaw movement and occlusion on a model made from an impression obtained from the oral cavity.
以下、本発明の人工歯を使用する方法を示す。 Hereafter, the method of using the artificial tooth of this invention is shown.
歯科医師が患者の口腔内から採得した顎堤の印象から作製した石膏模型上に、歯科医師または歯科技工士が樹脂製のプレートと蝋から成る蝋堤を作製する。この蝋堤は、人工歯を配置する前段階のものである。次に、歯科医師がこの蝋堤を患者の口腔内に試適し、患者の口腔内情報すなわち患者の上顎と下顎の顎間距離、咬合平面、正中の位置、口唇の位置、口角の位置など、人工歯の配置に必要な種々の情報を採りだす。その後、歯科医師または歯科技工士は、これら情報が印記された蝋堤を生体の顎の運動路を擬似的に再現する咬合器に装着する。 A dentist or dental technician makes a wax levee made of a resin plate and wax on a plaster model made from an impression of a chin ridge taken from the oral cavity of a patient by a dentist. This wax bank is a stage before placing artificial teeth. Next, the dentist will try this wax wall into the patient's mouth, the patient's mouth information, i.e., the patient's maxillary and mandibular distance, occlusal plane, median position, lip position, mouth angle position, etc. Extract various information necessary for the placement of artificial teeth. Thereafter, the dentist or dental technician attaches the wax embankment on which such information is marked to an articulator that simulates the movement path of the jaw of a living body.
歯科医師または歯科技工士は、咬合器に装着された蝋堤に対して人工歯を排列して、蝋義歯と呼ばれる人工歯部以外は最終的な材料とはなっていない仮の義歯を調製する。蝋堤には、前述の患者固有の情報が印記されているので、それを参考に人工歯を排列するが、その際には既製人工歯がそのままの状態で使用できる場合とそうではない場合がある。 The dentist or dental technician arranges the artificial teeth against the wax embankment attached to the articulator and prepares a temporary denture that is not the final material other than the artificial tooth part called the wax denture. . Since the patient-specific information is marked on the wax bank, the artificial teeth are arranged with reference to the information, but there are cases where the ready-made artificial teeth can be used as they are or not. is there.
そのままできる場合は、本発明の人工歯を加工せずに使用することができるが、患者の顎の状態すなわち上顎と下顎の距離が少ない場合は、本発明の人工歯の長径を図1で示す破線(A)の位置などで短く切除加工して使用することとなる。また、図7,9で示す点線部にスリット加工を施す場合もある。 If it can be used as it is, it can be used without processing the artificial tooth of the present invention. However, when the patient's jaw condition, that is, the distance between the upper jaw and the lower jaw is small, the major axis of the artificial tooth of the present invention is shown in FIG. It will be used after being cut short at the position of the broken line (A). In some cases, the dotted lines shown in FIGS.
人工歯の排列が完了し、人工歯以外は最終的な材料ではない仮の義歯が完成したら、歯科医師がこれを患者の口腔内に装着のうえ調整して患者に調和するか否かを確認する場合もある。 When the arrangement of the artificial teeth is completed and a temporary denture that is not the final material other than the artificial teeth is completed, the dentist will put it in the patient's mouth and adjust it to see if it matches the patient There is also a case.
仮の義歯の調整が完了した後、人工歯以外の仮の材料をアクリルレジン、ポリアミドナイロン樹脂、ナイロン系樹脂、ナイロンポリアミド樹脂やポリアミド+アクリルの混合体などによる義歯床材料に置換するため、仮の義歯を二分割できる金属製あるいは樹脂製の型枠と石膏を使用して割り型を作製する。 After the adjustment of the temporary denture is completed, the temporary material other than the artificial tooth is replaced with a denture base material such as acrylic resin, polyamide nylon resin, nylon resin, nylon polyamide resin or polyamide + acrylic mixture. A split mold is made using a metal or resin mold and gypsum that can be divided into two dentures.
仮義歯を石膏で型枠に埋没して割り型が完成したら、金属製あるいは樹脂製の型枠を沸騰した湯に浸漬して仮義歯の蝋を軟化させる。 When the split mold is completed by burying the temporary denture in the mold with plaster, the metal or resin mold is immersed in boiling water to soften the temporary denture wax.
金属製あるいは樹脂製の型枠を開輪し、蝋を一塊で取り出すが、人工歯の周囲には蝋が付着しているため、熱湯あるいはスチームにより確実に蝋を除去する必要がある。蝋の除去が不十分な場合は人工歯脱落の原因となる。本発明の人工歯の中央孔部(f)は、脱蝋に有利なラウンド状になっている。 The metal or resin mold is opened and the wax is taken out in one lump. However, since the wax is attached around the artificial teeth, it is necessary to remove the wax with hot water or steam. Insufficient wax removal can cause artificial teeth to fall off. The central hole (f) of the artificial tooth of the present invention has a round shape that is advantageous for dewaxing.
脱蝋が終了した後に、石膏と義歯床材料との分離材を割り型の石膏面に塗布し、義歯床材料に置換する前準備を完了する。 After the dewaxing is completed, the preparation material for replacing the denture base material is completed by applying the separating material of the plaster and the denture base material to the split plaster surface.
選択した義歯床材料を填入または注入して所定の方法で加圧、硬化させた後に割り型から義歯を掘り出す。掘り出しを終えた義歯を研磨し、咬合器に再装着して咬合調整を行い技工操作が完了する。この後、口腔内に装着して調整を経て人工歯が確実に維持されている義歯が完成する。 After the selected denture base material is filled or injected and pressed and cured by a predetermined method, the denture is dug out from the split mold. The dentures that have been dug out are polished, re-attached to the articulator, and the occlusal adjustment is performed to complete the technical operation. After that, a denture that is mounted in the oral cavity and adjusted and the artificial tooth is reliably maintained is completed.
本発明の人工歯は、人工歯と義歯床材料との機械的維持力を保持し、マイクロリーケージの発生を軽減し接合部の汚染を軽減するため、歯科医療において有効に利用できる。 The artificial tooth of the present invention can be effectively used in dentistry because it maintains the mechanical maintenance force between the artificial tooth and the denture base material, reduces the occurrence of microleakage, and reduces contamination of the joint.
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Cited By (8)
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KR101695584B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture attachment |
KR101695585B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth combining method of attachment for denture |
KR101695586B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture |
KR101695587B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture |
KR101749865B1 (en) * | 2016-03-24 | 2017-06-21 | (주) 디케이 문교 | Artificial teeth |
KR101781931B1 (en) | 2016-12-01 | 2017-09-26 | 배정호 | Extra denture |
CN110200721A (en) * | 2019-07-08 | 2019-09-06 | 天津医科大学口腔医院 | Labial teeth aesthetic diagnosis guide plate |
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KR101695584B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture attachment |
KR101695585B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth combining method of attachment for denture |
KR101695586B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture |
KR101695587B1 (en) * | 2016-02-01 | 2017-01-11 | 남두석 | False tooth for denture |
KR101749865B1 (en) * | 2016-03-24 | 2017-06-21 | (주) 디케이 문교 | Artificial teeth |
KR101781931B1 (en) | 2016-12-01 | 2017-09-26 | 배정호 | Extra denture |
GB2581491A (en) * | 2019-02-18 | 2020-08-26 | Davis Schottlander & Davis Ltd | Prosthetic tooth |
WO2020169952A1 (en) * | 2019-02-18 | 2020-08-27 | Davis, Schottlander & Davis Ltd | Prosthetic tooth |
GB2581491B (en) * | 2019-02-18 | 2023-02-22 | Davis Schottlander & Davis Ltd | Prosthetic tooth |
CN110200721A (en) * | 2019-07-08 | 2019-09-06 | 天津医科大学口腔医院 | Labial teeth aesthetic diagnosis guide plate |
CN110200721B (en) * | 2019-07-08 | 2024-02-23 | 天津医科大学口腔医院 | Front tooth aesthetic diagnosis guide plate |
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