EP3629999A2 - Individuell anpassbarer zahnmedizinischer abformlöffel für die zahnmedizinische feinabformung - Google Patents
Individuell anpassbarer zahnmedizinischer abformlöffel für die zahnmedizinische feinabformungInfo
- Publication number
- EP3629999A2 EP3629999A2 EP18733164.0A EP18733164A EP3629999A2 EP 3629999 A2 EP3629999 A2 EP 3629999A2 EP 18733164 A EP18733164 A EP 18733164A EP 3629999 A2 EP3629999 A2 EP 3629999A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- impression
- impression tray
- spacer layer
- tray
- fine
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/0006—Impression trays
Definitions
- the present invention relates to a customizable impression tray for the dental impression, also components of this tray and a method for preparing such a tray for a fine impression according to the features of the independent claims.
- Dental impressions provide the basis for the dental technician's work in making dentures, i. In particular, dental crowns, bridges, partial and full dentures od. Like., Dar. A good quality of the impression represents the crucial prerequisite for an optimally seated and functioning dentures.
- the dentist takes an impression (ie making a negative mold of the Patient dentition or the patient's jaw) by means of alginate-based, polyether- or silicone-based materials and with the aid of an impression tray.
- the standard procedure for producing high-quality impressions requires the patient several sessions, which usually also several transits between dental practice and laboratory are required.
- the dentist first removes a so-called first impression based on an alginate impression material for the relevant jaw (upper and / or lower jaw).
- Alginate is a relatively inexpensive material, in contrast to the material used for subsequent fine impressions, in which larger quantities, such as those required for this initial impression, can be used economically.
- a disadvantage of alginate is its lack of dimensional stability - in particular depending on the degree of moisture - so that it is not very precise and permanent impressions are possible.
- alginate when used, various errors may occur, e.g. a wrong water / powder ratio, so that the ideal consistency is not reached and the result is falsified.
- erroneous manual agitation of the mass may result in an excess of air incorporated in the material such that bubbles may or may not be blended in the subsequent impression so that the material has a lumpy consistency and results in poor, defective molding.
- the mixed alginate mass is usually painted in a metal impression tray and then pressed by means of a handle into the patient's mouth.
- the dentist or the corresponding assistent hereafter referred to as "dentist" has previously selected from a series of existing impression trays of different dimensions the most suitable for the patient's spoon.
- this Erstabformung is therefore often sub-optimal, because a conventional metal spoon does not allow a uniform distance between the jaw and teeth and ensures no recess of existing in the patient's ligament, so that can not be ideally molded at all points.
- the resulting initial impression is then sent to the laboratory and a positive model is created.
- the dental technician then creates a so-called individual spoon from a plastic (or other suitable material) (in the case of residual dentition), which is also called a "functional spoon” in the edentulous patient. Impressions for functional spoons should always be included in the following, even if this is not always mentioned.
- various methods exist in the prior art i.a. a thermoforming technique.
- the individual tray is fitted with a low-viscosity silicone or polyether material and the fine impression taken off, which is then sent back to the dental laboratory - firmly connected to the individual functional spoon.
- a so-called bite registration to enable a jaw relation Mood.
- the patient is bite into a wall of special plastic or wax, which is attached to a pine-based base (usually made of plastic, shellac or other materials).
- the bite registration is then also sent to the dental laboratory, where it allows alignment of the upper and lower jaw models in the so-called articulator (TMJ simulator) in order to imitate the relation of the two jaws of the patient situation.
- TMJ simulator so-called articulator
- thermoplastic materials In the recent past, dental materials based on low melting thermoplastic materials have been developed. This material is molten at such low temperatures, or even inelastically (roughly as kneadable) at such low (i.e., even lower) temperatures, and is also biocompatible such that reshaping of the - e.g. in the water bath previously heated - Thermoplast in the mouth of the patient is possible, if only for relatively short periods in which the element to be deformed still has temperatures that allow deformability, these temperatures are on the other hand so low that the contact of the material with Oral structures of the patient is still pleasing to the patient.
- the thermoplastic material can be heated to relatively high temperatures between 70 ° and 100 ° C (eg in a water bath). If the material had such surface temperatures when adjusting in the patient's mouth, this would no longer be acceptable to the patient. However, the thermal conduction and storage capabilities of the material in conjunction with some surface cooling before and after insertion of the heated material in the patient's mouth, in practice, cause the surface temperatures of the material to increase The patient's mouth in the malleable state can not reach more than typically 38 ° C (acceptable range between 35 ° C and 41 ° C), even if the material has previously been heated to 70 ° to 100 ° C.
- the above-described plasticizing process is fundamentally reversible, that is, the material can be heated several times and deformed in the heated state.
- the material In the cooled state, the material is dimensionally stable and very well suited for dental impressions.
- the material in the cooled state is not brittle, as is the disadvantageous property of cooled wax, for example.
- thermoplastic materials for the production of individual impression trays.
- these materials are less suitable for immediate fine impression, since the plasticity is limited in the heated state (the material allows due to its viscosity rather a "kneading", but no cast-like impression) and the removal of the cooled material and closely formed on the tooth structures Material from the patient's jaw would be problematic due to the existing in the jaw undercuts.
- WO 2008/102251 A1 describes such an individual spoon made of a thermoplastic material, wherein in particular the remarks in this document on possible materials are to be made by reference also to the subject of the present application.
- This spoon is heated in a water bath and reshaped by the practitioner in the mouth of the patient, so that on the one hand an adaptation to the individual dentition is given, on the other hand still enough space for the introduction of a conventional material, such as a silicone or polyether material for one in another Step to be performed fine impression remains.
- a conventional material such as a silicone or polyether material for one in another Step to be performed fine impression remains.
- a conventional material such as a silicone or polyether material for one in another Step to be performed fine impression
- thermoplastic materials useful in the context of the present invention, reference is made, by way of example, to the embodiments of US 5,415,544, without any intention to be limited to particular materials or types of material.
- the present invention has for its object to provide a impression tray and corresponding components thereof as well as a preparation process for a fine impression with such a spoon, where the above problems do not occur and obtained with minimal time and economic effort and reproducible and improved patient comfort, a high quality fine impression can be.
- an individually adaptable impression tray for dental precision impression wherein the impression tray is provided in the is made of a thermoplastic material which allows in the heated state a (tolerable for the patient despite possible direct contact of the heated material with teeth and / or oral cavity) Anformung in the mouth of the patient, and is dimensionally stable in the cooled state.
- the molten state of the thermoplastic thus becomes even at low temperatures and the deformable state at even lower temperatures (typically with tactile surface temperatures in the mouth of the
- This impression tray should, at least in partial areas in which a fine impression is to take place, have a spacing layer with a predetermined thickness, wherein the spacing layer can be removed after the molding process.
- the spacer layer thus forms a kind of placeholder for the material of the fine impression and thus ensures a defined minimum layer thickness for the Feinabformmaterial after the at least partial removal of the spacer layer even when concerns the impression tray (with the spacer layer) on the structures to be molded.
- the spacer layer is attached at least in partial areas of the impression tray, i. at least in the areas in which a fine impression is desired, whereby even there the spacer layer does not have to be present everywhere, cf. the comments below on "Stopps".
- the spacer layer has a thickness between 0.1 and 50 mm, wherein this preferably constant or optionally variable thickness is adapted to the desired minimum layer thickness of a thin-flowing impression material to be introduced after removal of the spacer layer for the fine impression.
- the spacer layer may preferably be formed from a non-thermoplastic in the application temperature range, but generally deformable deformation-free material.
- the spacer layer may in particular be formed from a film-like material, wherein the film must have a corresponding strength and still sufficient flexibility for the molding in the mouth of the patient, which for example by a foamed material, for example in the form of sponge rubber, or by a possibly multilayer metal foil, for example an aluminum foil or a zinc foil, which is equipped with a corresponding protective coating, could be realized.
- the spacer layer is essentially formed from the thermoplastic material of the impression tray itself and is separated from the actual impression tray only by a thin layer of a separating material, so that the spacer layer can be removed in a defined manner.
- the spacer layer may be glued to the impression tray, wherein the adhesive may be, for example, an adhesive adhesive, so that the spacer layer can be removed sufficiently easily and as far as possible without residue.
- the spacer layer has a certain chemical sensitivity to external influences, which the material of the impression tray does not have equally, in order thereby to remove the spacer layer by specifying physical or chemical conditions.
- the spacer layer could be particularly sensitive to certain chemicals (such as non-toxic for the further steps) such as acids or alkalis, or to be exposed to electromagnetic radiation - e.g. UV radiation - decompose or at least compact, i. reduce their layer thickness; for example, by the escape of stored gas components under temporary vacuum influence.
- electromagnetic radiation e.g. UV radiation - decompose or at least compact, i. reduce their layer thickness; for example, by the escape of stored gas components under temporary vacuum influence.
- the latter compacting should also be understood as "at least partial removal" in the context of the present invention.
- the spacer layer can be easily and as far as possible without residue removed from the thermoplastic material, which by suitable formation of the boundary layer between the spacer layer and thermoplastic material can be facilitated, for example - as already mentioned - by a removable pressure-sensitive adhesive or adhesive and / or a peeling-facilitating siliconization of the adhesive mating surface.
- the spacer layer is preferably so tear-resistant that it can be removed by a practitioner or another person after the molding in one piece or at least in several defined pieces, without significant residues remain on the thermoplastic material.
- tear strength properties can be realized in intrinsically rupture materials - such as paper or thin metal foils - for example, by laminated additional plastic layers or glass fiber reinforcements in the spacer layer material.
- thermoplastic material and the spacer layer are separated from each other by a film or other sheet, the film or the like remaining after removal of the spacer layer on the thermoplastic material. In this case, this film od. Like. Not to the spacer layer, but the other impression tray, which is not complete, but should be formed essentially only from the described thermoplastic material.
- substantially formed of a thermoplastic material is intended to mean at least 50%, but preferably more than 80%, and more preferably 90% -100% by weight of said thermoplastic material.
- the spacer layer can provide some stabilizing function to the heated thermoplastic material of the spoon base, providing the heated spoon with improved stability and easier handling.
- the spacer layer may contain an inelastically deformable film (for example a metal foil) with which the spoon is provided with a can be modeled on the basic shape, which is then better maintained during handling and insertion of the spoon in the mouth of the patient, as would be the case with the use of pure thermoplastic spoon;
- the spacer layer has no (significant) restoring behavior, ie, when the spacer layer is pressed once, this remains in the defined position and does not press about the molded thermoplastic material / molded again from the target structure;
- the spacer layer on the side facing the thermoplastic material may be colored and / or have labels and / or patterns.
- the spacer layer to form one or more so-called. Stop at least one, preferably at least three recesses has, through which the thermoplastic material of the impression tray can go directly to the ablated tooth or jaw structures.
- thermoplastic material can thus pass through during the molding process and thus form stops or stops which fix it and, even after removal of the spacer layer, produce a reproducible position of the impression material. ensure that the free space obtained by the spacer layer is uniformly available with a predetermined minimum thickness.
- the impression tray can be raised in the area of the recesses, so that a certain amount of thermoplastic material comes directly into contact with the contact points without to first have to press through the recesses in the spacer layer.
- the spacer layer may also have discontinuous depressions for forming one or more stops, through which the thermoplastic of the impression tray can not come into direct contact, but at least closer to the tooth or jaw structures to be shaped than in the surrounding area areas.
- the spacer layer which has a certain predetermined thickness, to form the stop have a hole, but which is closed with a thin film to be molded jaw structures. The thermoplastic material then protrudes into this opening and comes closer to the abdominal structures to be molded, but is not directly against them.
- stops or the corresponding recesses in addition to a substantially circular structure also have the form of grooves or predetermined geometrical patterns.
- At least three stops may be provided for one upper jaw impression tray and at least four stops for a lower jaw impression tray, wherein preferably at least one stop in each of the two lateral regions of the dental arch to be shaped and at least one stop in the central, anterior (anterior) region of the dental arch to be shaped is provided.
- the stops or recesses of the spacer layer are located in the intended areas for fine impressions. For example, if the recesses are provided in an area that is at the Impression is approximately opposite the chewing surfaces of certain teeth, so these stops in the subsequent fine impression of these teeth form part of the fine impression, which is not a problem in such relatively small areas. Therefore, the spacer layer does not necessarily have to extend over the entire structures to be fine-shaped, but in particular can also have recesses there for the formation of stops.
- the stops may also be made of the thermoplastic material, in which case the surrounding spacer layer ensures that the stops are not or only slightly deformed during molding, or the stops may alternatively consist of another material which is not thermoplastically deformable at the relevant temperatures, and for example be glued by the practitioner to the appropriate places with the help of a self-adhesive layer before the fine impression.
- one or more retention elements may be provided in the thermoplastic material and / or the spacer layer for fixing the fine impression layer to be introduced later in relation to adjacent impression tray structures during the later removal of the tray after the fine impression.
- this is achieved by means of suitable recesses or recesses in the spacer layer on the side facing the thermoplastic material; but it may also be provided pin-like protuberances on the spacer layer, or said structures may also have other shapes such as grooves or a geometric pattern. Possibly.
- the stops described above also act as a retention structure, depending on their positioning.
- the thermoplastic material then has, after removal of the spacer layer, a structure which is negative with respect to the retention structures of the spacer layer, ie either protuberances or recesses.
- the spacer layer it is preferable for the spacer layer to extend essentially over the entire area facing the ablated upper or lower jaw structures, with the exception of possible recesses for stops, wherein the spacer layer can protrude laterally in the unadjusted state of the impression tray.
- the spacer layer can protrude laterally in the unadjusted state of the impression tray.
- a flexibly compressible material such as e.g. a foam or a sponge rubber
- the removal of the cooled impression tray after the molding since the spacer layer can yield in a peeling with respect to undergoing structures.
- the practitioner can also influence how easily the impression tray can be removed again, since the spacer layer ensures only a minimum distance, which in certain areas is not guaranteed by the practitioner Forming the
- thermoplastic material with the spacer layer can be deliberately made larger. In this context, it is also conceivable that if the distance for certain reasons from the outset should be greater (eg in Zahnhals Scheme for ease of removability) that in these areas, the spacer layer per se has a greater strength than in other areas.
- defined perforations may be incorporated in the thermoplastic material of the impression tray, at least in partial areas, which perforations may be covered by the spacer layer. In these perforations later in the fine impression (at then removed spacer layer) excess fine material escape.
- the perforations can be introduced, for example, on the side facing the jaw to be formed at approximately equal intervals in the form of a regular matrix, the diameter and the depth being only a few millimeters, so that too much impression material can not escape.
- the perforations may be slightly deformed during the molding process of the thermoplastic material; but generally remain functional.
- thermoplastic e.g. Reopen with a tiller or other suitable instrument.
- the spoon handle can also be subsequently attached to the impression tray releasably - eg by means of screws or a plug or locking connection - be fastened. This is particularly useful when the spoon handle is to be used especially for the step of fine impression, because in this case sometimes slightly larger forces for the removal of the impression tray must be applied as in the previous Anform suits.
- the impression tray is designed to attach a bite wall, the attachment on the respective Side facing away from the impression side takes place.
- the bite wall may be formed of the thermoplastic resin material of the impression tray or of another inelastic (i.e., inelastically deformable by the biting action) material.
- the bite wall is preferably attached after making the fine impression on the impression tray.
- an impression tray for the lower jaw this is done on the upper side, so that the bite impression of the upper jaw can be taken, and vice versa, a bite impression of the lower jaw is registered in the case of an impression tray for the upper jaw.
- the bite wall is formed from a likewise low-melting thermoplastic material, then the entire impression tray with attached bite wall can be reheated and then the bite impression taken, which can also dig into the material of the impression tray.
- the bite wall then remains intimately connected to the impression tray and can serve to reconstruct the relative position between upper and lower jaw in an articulator in the dental laboratory.
- a thermoplastic base element is proposed, which comprises at least the impression tray made of thermoplastic material with or without spoon handle, but without a spacer layer, wherein the
- Basic element for applying a spacer layer before the Anformung, if necessary, under specification of appropriate positions for stops, is formed.
- the application of the spacer layer can then be carried out before the appropriate Anformung, possibly even only in the areas where a fine impression is required.
- the impression tray on the opposite side of the ablated jaw structures areas that can be deformed in the deformable state of the plastic by the Martinezkieferbiss so that thus a reproducible position of the impression tray is defined for a subsequent Feinabformungs Republic.
- the impression tray usually has a flat surface at the location of the counterbite and consists of sufficient thermoplastic material that can absorb the bite impression.
- the impression tray can have a separating layer on the side opposite the abutment of the jaw structures on the surface or near the surface, at least in some areas.
- This may be, for example, an adhered fabric layer (e.g., gauze fabric).
- thermoplastic material Penetration of thermoplastic material into interproximal spaces in the opposing jaw is avoided, which would otherwise make the removal of the impression tray painful to the patient after molding; Complete biting of the thermoplastic material through the opposing jaw is prevented. Indeed, such biting could result in "leakage" of fine impression material in the subsequent fine impression; the teeth which are particularly sensitive to heat compared to the other oral cavity structures are isolated from the temperature influence of the possibly somewhat warmer thermoplastic.
- a spacer layer is proposed which is designed for detachable application to a thermoplastic base element as described above.
- a bite block is proposed, which is designed for attachment to the side of the impression tray facing away from the respective impression side and preferably consists of an identical thermoplastic material as the impression tray.
- a method proposed according to the invention for preparing an individually molded dental impression tray having a spacer layer, in particular a impression tray as described above, for a fine impression the following steps are provided, which may also be carried out in a different order, if technically possible, or by further steps can be supplemented (first shaping of the spoon has taken place): i) removal of the spacer layer, at least in the areas of the structures provided for a fine impression; ii) optionally introducing an adhesion promoter onto the structures of the impression tray intended for fine impressions (this may possibly be dispensed with given sufficient retention elements); and iii) introducing a thin-flowing impression material (e.g., a silicone or polyether) into the impression-taking areas of the impression tray.
- a thin-flowing impression material e.g., a silicone or polyether
- An advantage of the invention is that a Erstabformung and a Zweitq. Fine impression and possibly a Kieferrelationsbetician can be realized in a patient session, which also time-consuming intermediate transports between dental practice and laboratory can be omitted.
- impression and impression procedure is more comfortable for the patient due to the individual and therefore more anatomically better adapted to the patient impression tray. If the molding process has not proceeded satisfactorily, the impression tray according to the invention can be reheated and the molding can be corrected as often as desired.
- the conventional metal spoon is eliminated and the impression tray according to the invention is a patient-specific part reduces the expense of storage and sterilization of the classic spoon. For example, it may not happen that a spoon that is actually optimal for a patient is currently not available because it is not yet sterilized. Furthermore, certain hygiene risks are avoided from the outset.
- the inventive concept reduces the amount of high-quality fine impression materials made of silicone or polyether and is therefore very economically advantageous, even taking into account the significant saving of working and transport steps.
- Figure 1 is a schematic representation of a Abformlöffel invention for Oberkieferabformache
- Figure 2 is a schematic representation of an impression tray according to the invention for lower jaw impressions
- FIGS. 3 a, b show an impression spoon according to the invention with the spoon handle removed;
- FIGs 4a, b an impression tray according to the invention with still unsecured
- FIG. 5 is a schematic representation of a impression tray for explaining a fixation counterbite
- FIG. 6 shows an impression tray according to the invention with a fixed bite wall
- Figure 8 is a perspective view of another embodiment of a impression tray for Oberkieferabformungen.
- an impression tray 10 according to the invention for a maxillary impression is shown schematically, recognizable by a central curvature 14 for ensuring a tongue clearance and as an anatomical basic structure for the impression of the palate.
- a corresponding impression tray 1 0 'according to the invention for the lower jaw according to FIG. 2 has, instead of the curvature, a recess 14' for the tongue.
- the representation of the impression tray 10 in Figure 1 corresponds to the position of use in the mouth of the patient; the impression tray 10 'in Figure 2 must be rotated by 180 ° for this purpose.
- the impression tray 10, 10 ' consists essentially of a thermoplastic whose molten state is reached already at temperatures that allow solidification of the material in the mouth of a patient with simultaneous molding.
- Typical starting temperatures are for example approx. 70 ° C. These temperatures can be specified relatively accurately, for example, in a tempered water bath.
- the surface temperatures of the heated thermoplastic material typically remain at or below the critical limit of 41 ° C (preferably not more than 38 ° C) in the patient's mouth, as noted above.
- the impression tray 10, 10 may be provided pre-produced to the dentist or practitioner in various sizes. It is also possible, however, for the dentist or dentist to use the impression tray with knowledge of the tooth and jaw geometry.
- the patient's metrology in advance is adjusted extraorally to the patient's conditions by heating before insertion into the patient's mouth, whereupon further heating is required for the actual molding.
- the impression tray 10, 10 ' can be produced by milling, pressing, cutting or punching operations.
- a 3D printing method would also be conceivable, such 3D printing in principle also being able to be carried out by the practitioner in adaptation to specific patient requirements.
- the illustrated impression tray 10, 10 ' is coated on its side facing the structures to be molded with a spacer layer 12, the surface of which is highlighted in the drawings optically darker. It may be a foam rubber layer or sandwich arrangements of several aluminum foils (or another material with the material properties required accordingly).
- the spacer layer has in each case a certain predetermined thickness, which is recognizable at 18 at the edge of the impression tray 10, 1 0 '.
- the spacer layer 12 is attached, for example, with an adhesive adhesive on the tray surface that this is held and deformation of the spoon material within certain limits can understand, but on the other hand can be removed largely without residue.
- the spacer layer 12 may already be connected to the tray material in the delivery state. However, it is also possible for a dentist or another person to apply the spacer layer 12 only after a certain extraoral preforming of the impression tray 10, 10 ', which has the advantage that the spacer layer 12 does not have to be co-deformed during preforming and, as a result, no wrinkles The like arise.
- the spacer layer forming film is preferably applied self-adhesive on a siliconized or waxed substrate.
- this may project beyond the edge of the impression tray (see reference numeral 18) (not shown).
- spoon handles are furthermore formed on the impression trays 10, 10 '.
- the optionally preconceived impression tray 10, 10 is heated together with the spacer layer 12, for example in a water bath to a predetermined temperature (expediently the tray handle area is not warmed up, so that it remains firm) and then by the practitioner in the patient's mouth by mechanical deformation formed as possible to the adoptedformenden structures.
- stops 16a-d are provided according to FIGS. 1 and 2. These are in this case round recesses in the spacer layer 12 through which material elevations extend from the tray material. In the molten state, the respective dental or jaw structures are expressed in these elevations. Since the elevations of the stops 16a-d remain even after removal of the spacer layer 12, they then define the position of the impression tray over four contact points and thus more than clearly.
- this measure can be provided in all illustrated impression tray variants) the patient during molding, ie in still deformable thermoplastic tray material into which the actual impression side of Löf- bite 10 'opposite side with light to medium pressure, so that on the provided there, essentially flat surface a bite impression plastically impressed or a bite impression is provided, as indicated in Figure 5 by the reference numeral 26.
- the counterbite provides an optimal and constant force application for the fine impression, as it would not be possible by manual pressure exerted by a practitioner in the rule.
- thermoplastic material in the above-described "counter bite decrease" - which could lead to mechanical instability of the tray or to fine-molding leaks - and to prevent penetration of thermoplastic material into the interdental spaces of the counterbite - and possibly also to provide a certain thermal insulation - is in the expected range of the counterbite according to Figure 5 further applied a release layer 28, in which it is, for example one
- a dental fine impression takes place by means of the individually adaptable impression tray, preferably with the following steps, which can be modified in their order and, if appropriate, can also be supplemented by intermediate steps: a) providing an approximately matching for the jaw structure Abformlöffels 10, 10 'with spacer layer 12 and heating the impression tray until it becomes plastic; b) molding the Abformlöffel 10, 10 'to be formed dentition or jaw structure with possibly training / molding of the edge to the so-called.
- Envelope fold optionally taking a counterbite impression into the still-formable thermoplastic material by asking the patient to bite with light or moderate pressure; this step can also be carried out at the beginning of the shaping step b) or at some point during the molding; c) removing the spacer layer 12, at least in the areas relevant for the fine impression after removal of the impression tray from the patient's mouth; d) optionally introducing a bonding agent, unless this is superfluous by mechanical retention elements; e) introducing a thin-flowing impression material into the areas relevant for the fine impression; f) placing the loaded spoon in the mouth of the patient; f1) if a counterbite impression according to step b1) is present, fixing the impression tray during the curing phase of the fine impression material by biting the patient, and g) after the fine impression material has cured, the fine impression is reduced.
- FIGS. 3a and 3b show a removal of the spoon handle 20 from the impression tray 10 which is expedient for creating a bite registration, since the spoon handle 20 would be disturbing in this case.
- a bite wall 22 for attachment to the impression tray 10 is provided.
- the connection is made either by means of thermoplastic smelting or other fasteners (eg glue, screws).
- the connected state is shown in FIG. 6, in which the former fastening point 24 of the spoon handle 20 is also visible.
- the bite wall 22 is made of the thermoplastic material of the impression tray, it is - preferably targeted - heated, whereupon the bite registration takes place. But there are also bite walls of other inelastisch deformable materials, e.g. certain wax materials, conceivable.
- FIG. 7 shows a schematic layer structure for illustrating the possibility of creating retention elements in the thermoplastic material 30 for later fine impressions by means of structures in the spacer layer 12 initially arranged on the thermoplastic material 30.
- the spacer layer has an embossment with rectangular grooves 32 on its side adjacent to the thermoplastic material 30, although this is only one example of a possible structure.
- This groove structure 32 continues when the spacer layer 12 is removed prior to the fine impression.
- the fine impression material finds retention structures through the structure 32 thus introduced, so that when the tray 10, 10 'is removed after the fine impression, the fine impression material remains firmly attached to the spoon without the need for a separate adhesion promoter.
- the side of the spacer layer adjacent to the thermoplastic material 30 may have a conspicuous color, pattern, and / or lettering at 34. This shines through with transparent and thus moldable thermoplastic material 30 and becomes invisible during solidification and thus allows optimum visual temperature control.
- Figure 8 shows a perspective view of another embodiment of an impression tray 10 according to the invention for the upper jaw (without spacer layer), in which three stops (stops 16a-c, of the stop 16a is not visible) are provided.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017111592.7A DE102017111592A1 (de) | 2017-05-29 | 2017-05-29 | Individuell anpassbarer zahnmedizinischer Abformlöffel für die zahnmedizinische Feinabformung |
PCT/DE2018/100517 WO2018219407A2 (de) | 2017-05-29 | 2018-05-28 | Individuell anpassbarer zahnmedizinischer abformlöffel für die zahnmedizinische feinabformung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3629999A2 true EP3629999A2 (de) | 2020-04-08 |
Family
ID=62705342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18733164.0A Pending EP3629999A2 (de) | 2017-05-29 | 2018-05-28 | Individuell anpassbarer zahnmedizinischer abformlöffel für die zahnmedizinische feinabformung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200078147A1 (de) |
EP (1) | EP3629999A2 (de) |
CA (1) | CA3064984A1 (de) |
DE (2) | DE102017111592A1 (de) |
WO (1) | WO2018219407A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019132563A1 (de) | 2018-11-29 | 2020-06-04 | Sebastian Linzen | Vorrichtung zum Erwärmen eines individuell anpassbaren zahntechnischen Abformlöffels sowie Stanzwerkzeug für einen derartigen Abformlöffel |
DE102019105956A1 (de) * | 2019-03-08 | 2020-09-10 | Shera Werkstofftechnologie Gmbh & Co Kg | Verfahren zur Herstellung eines individuellen Abformlöffels |
WO2020223353A1 (en) * | 2019-05-02 | 2020-11-05 | Huafeng Wen | Systems and methods for customized and personalized oral irrigator |
USD933831S1 (en) * | 2019-05-13 | 2021-10-19 | Imsol Corp. | Guide tray for manufacturing dental implants' placement guide |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69004245T2 (de) | 1990-02-23 | 1994-05-11 | Minnesota Mining & Mfg | Semi-thermoplastische Formmasse mit thermostabilem Formerinnerungsvermögen. |
WO1991012777A1 (en) * | 1990-02-23 | 1991-09-05 | Minnesota Mining And Manufacturing Company | Thermoplastic custom dental tray having high modulus warm state |
DE19936467C2 (de) | 1999-08-03 | 2003-06-12 | Michael Azzaretto | Vorrichtung zur Herstellung einer Bißschablone |
US6875016B2 (en) | 2002-03-25 | 2005-04-05 | 3M Espe, Ag | Dental impression tray with impression material retainer |
DE202006001141U1 (de) * | 2006-01-24 | 2007-05-31 | Kiefer, Inge H. | Abformlöffel und Zubehör für die Zahnmedizin |
ITPI20070016A1 (it) | 2007-02-23 | 2008-08-24 | Antonio Monicelli | Metodo per realizzare un portaimpronta per uso odontoiatrico |
DE102008029765B4 (de) * | 2008-06-25 | 2014-01-23 | Kettenbach Gmbh & Co. Kg | Abformlöffel sowie dessen Verwendung |
DE102014011216B4 (de) | 2014-07-29 | 2019-06-06 | Ralf Schätzle | Verfahren zur zahnmedizinischen Mundabformung |
-
2017
- 2017-05-29 DE DE102017111592.7A patent/DE102017111592A1/de not_active Withdrawn
-
2018
- 2018-05-28 DE DE112018002731.7T patent/DE112018002731A5/de active Pending
- 2018-05-28 EP EP18733164.0A patent/EP3629999A2/de active Pending
- 2018-05-28 CA CA3064984A patent/CA3064984A1/en not_active Abandoned
- 2018-05-28 US US16/615,874 patent/US20200078147A1/en not_active Abandoned
- 2018-05-28 WO PCT/DE2018/100517 patent/WO2018219407A2/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CA3064984A1 (en) | 2018-12-06 |
DE112018002731A5 (de) | 2020-03-19 |
WO2018219407A3 (de) | 2019-01-24 |
DE102017111592A1 (de) | 2018-11-29 |
US20200078147A1 (en) | 2020-03-12 |
WO2018219407A2 (de) | 2018-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3242628B1 (de) | Verfahren zur herstellung einer dentalprothese | |
WO2018219407A2 (de) | Individuell anpassbarer zahnmedizinischer abformlöffel für die zahnmedizinische feinabformung | |
EP3166532B1 (de) | Verfahren zur herstellung einer dentalprothese | |
EP2215967B1 (de) | Dentalprotektor | |
EP1673028B1 (de) | Verfahren und abdrucklöffel zur herstellung einer dentalschiene | |
DE60036693T2 (de) | Verfahren zur herstellung neuer zahnmedizinischer prothesen unter verwendung bereits vorhandener zahnprothesen | |
DE202009002364U9 (de) | Dentalprodukt und Kit zu seiner Herstellung | |
WO2009056108A2 (de) | Abdrucklöffel und zahnabdruckbox | |
DE2061628B2 (de) | Satz dünnwandiger Ringe zum Nehmen eines Abdruckes für die Herstellung einer Zahnkrone | |
DE19739220C2 (de) | Verfahren zum Herstellen von Zahnprothesen | |
WO2008145687A1 (de) | Verfahren und vorrichtungen zum erstellen eines modells eines patientengebisses | |
DE4416458B4 (de) | Kunststoffolie für zahnärztliche Abformverfahren, deren Verwendung und Verfahren für zahnärztliche Abformungen | |
DE102005016763B4 (de) | Set zur Herstellung einer provisorischen Zahnkrone oder -brücke | |
DE102017003811A1 (de) | Wiederverwendbares, zahnmedizinisches Materialträgermodul und ein wiederverwendbares, zahnmedizinisches Materialträger-System, aus Sets von Materialträgermodulen und Verfahren | |
EP3266408A1 (de) | Abformlöffel, abformanordnung sowie verfahren zur herstellung einer prothese | |
AT253113B (de) | Zahnkrone aus Metall | |
DE102021120571A1 (de) | Bissverschlüsselungszahnmaterialabschleifschablone | |
DE202015006255U1 (de) | Material zum befestigen von Prothesen | |
DE102021125637A1 (de) | Trainingsmittel und Verfahren zum Konditionieren von Ernährungsgewohnheiten | |
DE102023001584A1 (de) | Präfabrizierte, herausnehmbare zahnprothese eines zahnprothesen-systems und verfahren zur anpassung einer zahnprothese | |
WO2021004582A1 (de) | Materialzusammensetzung u.a. für aufbissschienen in der dentaltechnik, verfahren zu ihrer herstellung und ihre verwendung | |
DE102021125638A1 (de) | Trainingsmittel und Verfahren zum Konditionieren von Ernährungsgewohnheiten | |
WO2020108707A2 (de) | Individuell anpassbarer zahnmedizinischer abformlöffel sowie verfahren zur vorbereitung einer abformung und verfahren zur herstellung eines derartigen abformlöffels | |
DE2444006A1 (de) | Zahnprothese und verfahren zu deren herstellung | |
DE19611285A1 (de) | Schutzplatte oder -folie, insbesondere als Vestibulumplastik im Kiefer und Verfahren zum Erzeugen eines temporären Schutzes mit einer derartigen Schutzplatte oder -folie |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20191120 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20230301 |