摘要:
A method for whitening teeth with a neat finishing, and a considerable durability can be provided at a low cost. Further, a method for easily making up nails can be provided. An apparatus of the present invention comprises a lower mold base for placing a male mold of a tooth form or a nail form to be attached with the seal, a sheet base for positioning a high polymer material sheet above the lower base, a holder portion for holding a female mold corresponding to the male mold, and a press mechanism for compressing the male mold, the high polymer material sheet placed on the sheet base, and the female mold with each other.
摘要:
After the shape of the zone of implantation in the mouth is obtained by direct impression, micro-sensing or optical impression, a prosthesis or a mold for making a prosthesis is automatically machined by machine tool at a work center with the assistance of a calculator or computer which takes into consideration the shape obtained, the material or materials which are to be shaped, and other parameters such as thicknesses and the like which are essential to the proper shape and configuration of the prosthesis which is thus fabricated. The prosthesis can be a crown, bridge or part or assembly of both.
摘要:
A method for producing at least one patient-specific pad for a modular bracket having a pad and a bracket body includes providing a pad material section. A punch is provided having at least one punching stamp for punching out at least one raw pad from the pad material section. At least one pad is punched out from the pad material section with the punch to produce a raw pad library. A patient-specific set-up is generated. The set-up is made of plaster, and includes the teeth to be treated of an upper jaw and/or of a lower jaw of a patient. A raw pad is selected from the raw pad library for a patient's tooth to be treated. A gap between the raw pad and the corresponding tooth in the set-up is filled using a filling material to produce for the pad a tooth-specific glued surface allowing for a form-fit to the clinical tooth of the patient.
摘要:
A method for producing a patient-specific pad (3) for a modular bracket (1) having a pad (3) and a bracket body (7), which comprises the steps: P1 a) providing a pad material section, which preferably is plane, b) providing a punch having at least one punching stamp for punching out at least one raw pad (5) from the pad material section, c) punching out of at least one raw pad (5) from the pad material section by means of the punch, d) generating a patient-specific set-up, in particular made of plaster, of the teeth to be treated of an upper jaw and/or of a lower jaw of a patient, e) selecting a raw pad (5) from the raw pad library (19) for each of the patient's teeth to be treated, f) filling a gap (27) between the raw pad (5) and the corresponding tooth in the set-up using a filling material, especially of plastic, in order to produce for the pad (3) a tooth-specific glued surface (3K) allow for a form fit to the clinical tooth of the patient.
摘要:
A process for making orthodontic assemblies such as brackets and buccal tubes which permits simultaneous heat treating of the assembly while brazing the assembly together. The process consists of assembling a plurality of aligned bases with caps and a brazing insert. The caps are then tack welded (temporarily fastened) to the bases to produce a strip of orthodontic assemblies which can be easily handled. The strips are then heat treated to a brazing temperature in a specified atmosphere. The individual orthodontic assemblies are either automatically separated during the heat treatment or may be easily separated by cutting after removal from the furnace. The bases and caps for the buccal tube assemblies are of a unique design which is readily adaptable to the multiple strip brazing process.
摘要:
The invention shows a dental press furnace comprising a pressing punch (36) which acts on a green product (32) made of in particular a ceramic mass—possibly by means of an interposed ram (28)—, the green product (32) being guided in a press channel (30) which is configured in a muffle (24), and a pressure, distance and/or speed sensor detecting at least one motion parameter of the pressing punch (36), and comprising a control device for controlling the pressing process based on the output signal of the sensor, the trigger criterion for the start of the pressing process being a change of at least one motion parameter of the pressing punch upon heating and/or softening of the green product which change is detected by means of the sensor.
摘要:
An orthodontic appliance such as a bracket is made of a polymeric material with reinforcing fiber structure embedded in the polymeric material. The reinforcing fiber structure includes relatively long filaments that extend about the perimeter of the bracket including the periphery of an archwire slot. In one embodiment, a method for making the bracket includes the steps of placing a tubular fiber preform in a mold assembly in an orientation aligned with a mesial-distal axis of the resultant bracket, and then closing the mold assembly in directions toward a central axis of the preform.
摘要:
The invention relates to a method for producing a plastics body with patterned layers for producing dental prostheses having the steps:
method for production, wherein the method is characterized by the following steps: A) providing a first and a second PMMA-based compound which are uncured and have different colorations; B) heating of a first patterned pressing surface to between 90° C. and 150° C.; C) pressing of the first PMMA-based compound with the heated first pressing surface, such that a patterned surface of the first PMMA-based compound is obtained; D) detachment of the first pressing surface; E) heating of the first or of a second patterned pressing surface to between 90° C. and 150° C.; F) pressing of the second PMMA-based compound with the heated pressing surface, such that a patterned surface of the second PMMA-based compound is obtained; G) detachment of the pressing surface; H) subsequent laying of the patterned first and second PMMA-based compounds on one another such that the patterned surface of the second PMMA-based compound is oriented toward the patterned surface of the first PMMA-based compound; and I) compression molding of the first with the second patterned PMMA-based compound, such that a solid bond is created between the first PMMA-based compound and the second PMMA-based compound.
The invention also relates to a device for implementing such a method.