摘要:
The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising - Si oxide calculated as SiO2 from 55 to 80 wt.-%, - Li oxide calculated as Li2O from 7 to 16 wt.-%, - Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and - P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600°C. The present invention is also directed to a kit of parts comprising a porous 3-dim article having the shape of a dental milling block and a respective instruction of use.
摘要翻译:本发明涉及一种由多孔三维制品制造二硅酸锂玻璃陶瓷烧结烧结体的方法,该方法包括将具有外部形状的牙科修复物的多孔三维制品 和内表面以获得二硅酸烧结二氧化硅陶瓷牙科修复体,所述烧结的二硅酸锂玻璃陶瓷牙科修复物包含以SiO 2计为55〜80重量%的氧化硅氧化物,以Li 2 O计为7〜16重量% %, - Al氧化物计算为1至5重量%的Al 2 O 3和以P 2 O 5计算的氧化铝相对于牙科修复体的重量为1至5重量%,重量%,烧结为 在降低的大气压力条件下进行,在600℃以上的温度下施加降低的大气压条件。 本发明还涉及一种包括具有刨花板形状的多孔三维制品和相应的使用说明书的成套工具。
摘要:
Préforme en matériau composite réticulé destinée à l'usinage de couronnes ou bridges, en particulier par CFAO comprenant une infrastructure composée par la superposition de tissus à base de fibres, les tissus étant imprégnés d'une résine et étant sensiblement répartis sur toute l'épaisseur de ladite infrastructure, caractérisée en ce qu'elle contient, en outre, une suprastructure à base de résine, ladite suprastructure étant exempte de fibres et solidaire de l'infrastructure sur la totalité de sa surface supérieure ou inférieure.
摘要:
Es werden Quarz-Mischkristall-Glaskeramiken und Vorstufen davon beschrieben, die sich durch sehr gute mechanische und optische Eigenschaften auszeichnen und insbesondere als Restaurationsmaterial in der Zahnheilkunde eingesetzt werden können.
摘要:
The invention relates to a process for selectively treating parts of the surface of a porous dental zirconia article, the process comprising the steps of providing a liquid composition and a porous 3-dimensional dental zirconia article having an outer and inner surface, applying the liquid composition to only a part the outer surface and/or inner surface of the porous dental zirconia article, the liquid composition comprising a whitening agent comprising a phosphorous containing component, the phosphorous containing component comprising a phosphate, phosphone or phosphine moiety, with the proviso that at least one P-O unit of the phosphate, phosphone or phosphine moiety is dissociable or able to otherwise interact with zirconia. The invention also relates to a dental zirconia article obtainable or obtained by such a process and a kit of parts comprising a container containing a certain liquid composition.
摘要:
A dental restorative device is shown as comprising a first cured or hardened layer in the form of an occlusal surface of the tooth being restored and a second uncured dental composite layer joined to the first layer enabling a dental professional to perform direct dental restoration procedures with results replicating indirect direct dental restoration procedures. A system comprising the multi-layered dental restorative device and packaging provides for sufficient support and protection of the uncured second layer and facilitates positioning and finishing of the dental restorative device by cooling the uncured portions to a rigid state while in the packaging, positioning the dental restorative device, and modifying the second layer to fit, curing the second layer and permanently placing the fully cured and hardened dental crown on the tooth being restored.
摘要:
Изобретение относится к области стоматологии и предназначено для реставрации/реконструкции зубов, разрушенных ниже уровня десны, с применением технологий армирования композитных материалов. Непрямой атравматичный способ реставрации/реконструкции разрушенных ниже уровня десны предусматривает использование армированного сеточно- металлокомпозитного (СМК) зубного протеза по Меликяну М.Л., который изготавливают лабораторным способом с использованием гипсовых моделей. Армированный сеточно-металлокомпозитный (СМК) зубной протез состоит из сборных гибкого коронково-корневого проволочного штифта и армирующего коронково-корневого каркаса, изготовленных из сетки и свободных проволок сетки. Стенки коронковой части зубного протеза сформированы из композитного материала. Предлагаемая технология позволяет учеть при изготовлении армированного сеточно-металлокомпозитного (СМК) зубного протеза остаточные явления полимеризационной усадки композитного материла и обеспечить качество шлифования и полирования коронковой части протеза, а следовательно, повысить устойчивость и долговечность реставрации/реконструкции восстановленного зуба.
摘要:
A method of making a dental crown or bridge restoration (5) comprises forming a precursor crown (5') outside of a patient's mouth with a first restorative material (6), with a buccal contour on the buccal wall substantially the same as a buccal contour on a final crown restoration, and an open space (9, 10) on or around at least one of the mesial side wall (11) or the distal side wall (12); and filling and securing a second material (7), different from the first restorative material, inside the open space of the precursor crown while outside the patient's mouth, and with the precursor crown having a strength substantially equivalent to the final crown restoration, and with the buccal contour being substantially the same as the buccal contour on the final crown, prior to filling and securing the second material.
摘要:
A method for creating a substantially accurate dental restoration from scanning a negative dental impression (20) of a patient's teeth (24) or a positive dental stone model (40) of the patient's teeth includes applying a compensation rate to compensate for the shrunk or enlarged scan of the patients teeth, to the scan of the patient's teeth using the scanner (28) to create a true dimension working file; the scan of the patient's teeth using a computer system to create a true dimension working file; or a shrunk restoration file of the restoration using a restoration fabricator. A restoration can be designed based on the scan of the patient's teeth and creating a restoration file. The restoration can be fabricated using a restoration fabricator.
摘要:
The present invention describes a dental implant unit comprising titanium, wherein the dental implant unit has at least one surface (end) for connection and a lateral surface covering all of the implant unit but the connecting end and wherein the lateral surface comprises a layer of synthetically created titanium dioxide and wherein at least the end for connection is free from synthetically created titanium dioxide. Furthermore, the present invention is related to both full-body implants, such as screws, abutments, implant parts, bridges or crowns, and smaller implant bodies, such as particles, grains or granules. In the latter case, the present invention is directed to a whitened implantable dental unit, said dental unit comprising titanium in the form of a titanium metal or titanium alloy, and/or in the form of titanium oxide, said dental unit having a surface comprising synthetically created titanium dioxide and which surface also comprises fluoride bound to the surface. Moreover, the present invention is also related to a method for the production of a whitened implantable dental unit, said method comprising thermal oxidation of a dental implant unit comprising titanium and being solid or porous in the presence of fluoride ions, for the production of a whitened implantable dental unit having a surface comprising synthetically created titanium dioxide.
摘要:
The invention relates to a dental mill blank comprising a pre-sintered porous zirconia material, the porous pre-sintered zirconia material showing a N2 adsorption of isotherm type IV according to IUPAC classification, the porous pre-sintered zirconia material having a Vickers hardness from about 25 to about 150, the dental mill blank comprising means for reversible attaching it to a machining device. The invention also relates to a process of producing a zirconia dental article comprising the steps of providing a dental mill blank comprising a porous pre-sintered zirconia material, placing the dental mill blank in a machining device, machining the porous zirconia material and to a dental article obtained by such a process.