Dental restoration system and method of building a restoration

Abstract

A dental restoration system (1) for restoring a tooth at least during healing of an implant structure (5) placed in a jaw of a patient, comprising a crown base (3) and a locking member (2). The crown base (2) is configured to be positioned on a gingiva former (4) mounted to the implant structure (5). The locking member (2) has a contact surface (212) and a securing structure (24) configured to be secured to the gingiva former (4). The crown base (3) has a through hole (31) configured to receive the locking member (2) such that the contact surface (212) of the locking member (2) contacts the crown base (3) and the securing structure (24) extends at least partially out of the crown base (3). The crown base (3) is made of a base material configured to be combined with a crown material used for building a crown (6).

Description

Technical Field

[0001] This invention relates to dental restoration systems and methods for constructing dental restorations. Such systems and methods can be used to replace one or more teeth during the healing process following the placement of one or more dental implants in a patient's jaw. Background Technology

[0002] Today, when patients need to replace one or more teeth to achieve a natural feel and stable restorative effect, especially when certain clinical conditions are met (such as healthy underlying bone and soft tissue structure), implant-supported dental restorations are often the preferred treatment method.

[0003] Dental implants are typically threaded elements designed for placement in the patient's jaw. Implant placement usually requires opening a gingival flap for better access to the implant site. Whether a submucosal or transmucosal approach is used—that is, whether a two-stage surgery is performed on the soft tissue of the gum or a single-stage flap opening—a so-called healing cap or healing abutment (more generally called a gingival reshaping device) is usually attached to the inserted implant. The function of the healing cap or abutment is to preserve and retain gingival tissue at the implant site, that is, to preserve and retain it in the area surrounding the alveolar bone of the missing tooth, thereby preserving anatomical exposure.

[0004] The temporary use of healing caps or gingival reshaping devices aims to create an exposed profile of the desired shape, deemed suitable for a given patient's condition. In the technical field of implantology, this gingival shaping is also summarized as soft tissue trimming.

[0005] Typically, dental prosthetic treatment involves other processes or steps besides implant healing and soft tissue trimming. For example, it is often desirable to design and construct dental restorations based on the given conditions in the patient's mouth. This is done either by scanning the immediate situation with an intraoral scanner or by creating a model casting from impressions taken in the mouth.

[0006] Furthermore, during the implant healing process into the bone, it is generally necessary to prevent the application of stress / pressure to the implant to ensure proper healing. More specifically, for the implant to heal correctly into the jawbone, the load or mechanical stress applied to the implant must not exceed a certain level. Simultaneously, during the implant healing process, which can potentially take several months, patients should bite normally as much as possible to prevent collateral damage, such as pressure on other teeth. Additionally, during chewing, the space may be compressed by food or other parts moving into the space. This can lead to inflammation of the gums or implant, potentially impairing healing.

[0007] Furthermore, constructing dental restorations on abutment teeth, such as temporary abutments, is often difficult or time-consuming. Typically, the construction of a dental restoration requires the removal and eventual reinstallation of the healing cap, which can stress the soft tissue and potentially affect implant-to-jaw healing. This is especially true because the healing cap or abutment tooth is usually grasped from the outside to remove it, meaning that the soft tissue surrounding the cap or abutment tooth must be removed, moved, or lifted to some extent. Each removal and reinstallation carries the risk of damaging the gingiva and / or weakening or repositioning the implant-jaw connection.

[0008] Therefore, a system or method is needed that allows for gentle handling of soft tissue and implant conditions during implant healing and the construction of dental restorations. Summary of the Invention

[0009] According to the present invention, this need is met by a dental restoration system and a method for constructing a dental restoration on an implant placed in a patient's jaw. This disclosure also relates to some preferred embodiments of the invention.

[0010] In particular, one aspect of the invention provides a dental restoration system for restoring teeth, at least during the healing process of an implant structure placed in a patient's jaw, the dental restoration system comprising a crown abutment and a locking member. The crown abutment is configured to be positioned on a gingival reshaping device mounted to the implant. The locking member has a contact surface and a fixation structure configured to secure to the gingival reshaping device. The crown abutment has a through-hole configured to receive the locking member such that the contact surface of the locking member contacts the crown abutment, and the fixation structure extends at least partially from the crown abutment. The crown abutment is made of an abutment material configured to bond with a crown material used to construct the crown.

[0011] Dental prosthetic systems can be temporary. Specifically, a dental prosthetic system can be configured to temporarily replace one or more teeth during the healing process of the implant in the patient's jaw. The time required for complete implant healing can be several months, for example, from about three months to about ten months.

[0012] Dental restorative systems can be implemented to replace single or multiple teeth. Therefore, such systems can have or incorporate crown-like or bridge-like structures.

[0013] A gingival reshaping device can be a healing abutment tooth that will be directly positioned and secured to the implant. More specifically, in the context of this invention, the term "gingival reshaping device" refers to an element or device designed to be positioned on the implant structure after implant insertion and during implant healing for soft tissue trimming purposes. For example, it can be substantially cylindrical or regularly shaped. However, more advantageously, it can be shaped to reflect the form / shape of the gingival canal through which the implant structure is inserted after a flap in the gingiva is surgically opened. Possible types of gingival reshaping devices include healing caps, healing abutment teeth, and similar elements.

[0014] Implant structures may include one or more implants, more precisely, cylindrical or screw-like elements inserted into the jawbone as artificial tooth roots. Implant structures may also include abutment teeth or bases attached to the implant or fixed to at least one remaining portion of the original tooth. For example, an implant structure may include an abutment tooth, for instance, made of titanium, designed to be placed on the implant to provide support for dental restorations or reconstructive structures such as crowns or bridges.

[0015] In the context of this invention, the term "dental prosthesis" refers to a structure comprising a visible portion extending into the oral cavity, such as one or more prosthetic teeth. The term includes crowns, bridges, and similar restorations. Dental prostheses are typically formed individually with consideration of the oral cavity in which they will be placed. Therefore, the restorations according to the invention can in particular be patient-specific individual restorations.

[0016] As used herein, the term "dental crown" generally refers to an artificial dental crown. Therefore, as part of a dental restoration, a dental crown is typically or includes the visible portion of a tooth extending into the oral cavity. Typically, a dental crown is an artificial dental component used to replace the natural crown of a single tooth. However, the term can also encompass embodiments where natural crowns replace multiple teeth.

[0017] The term “jaw” is understood in this article to include the jawbone, related soft tissues, teeth, and tooth roots.

[0018] The locking member is essentially cylindrical. The fixing structure may include, for example, threads located around the cylindrical shape. Therefore, the locking member may be a locking screw or a similar screw-like structure.

[0019] By being specially configured to be positioned on and fixed to a gingival reshaping device, the crown abutment can be used for temporary restoration during implant healing. Therefore, by being made of an abutment material specially constructed to bond with the crown material used to construct the crown, the crown abutment allows for efficient formation of a crown or dental restoration directly on the crown abutment. Thus, a dental restoration or crown can be efficiently formed on the crown abutment while it is attached to the implant structure, without the need to remove the crown abutment. This allows the dental restoration to be formed gently without unduly compressing the implant or any surrounding tissue during healing.

[0020] Furthermore, the crown can be precisely shaped using abutment teeth on which the crown is formed directly, allowing for the specific implementation of dental restorations or crowns to reduce stress / pressure on the implant. In particular, this invention allows for the efficient and accurate construction of temporary restorations, where specific needs during implant healing can be considered.

[0021] Therefore, the system according to the invention allows for gentle handling of soft tissue and implant conditions during implant healing and during the construction of dental restorations or crowns.

[0022] The term "bonding" in relation to abutment and crown materials refers to a fixed connection between the crown abutment and the crown. This fixed connection can be, in particular, a cohesive connection and / or an adhesive connection, which can be generated by an external energy input such as light or ultrasound. Therefore, the term specifically includes bonding or partially melting the crown material and the abutment material. Specifically, when bonded, the abutment and crown materials can interact directly, thus not necessarily requiring additional adhesive to connect the crown abutment and the crown. More specifically, the crown can be formed, for example, layer-by-layer directly onto the crown abutment. After crown formation, the crown abutment and crown can be integral / monolithic and can be irreversibly joined.

[0023] To initiate the bonding process that attaches the crown material to the abutment material, activation energy may be required. For example, this activation can be triggered by heating, or more advantageously by applying light directly into the patient's mouth.

[0024] The crown material can be a light-cured material, and the abutment material can be configured such that the crown material can be cured directly on the abutment tooth. Thus, the crown can be produced or formed on the abutment tooth using a technique that includes light curing, which is known and accepted by dentists. Preferably, the crown material is a composite material, more preferably a resin-based composite material. Such composite materials can possess suitable properties for constructing crowns. Furthermore, they can be flexibly shaped before curing, can be effectively cured (e.g., by light), can be sufficiently hard after curing, and can be biocompatible, thus allowing application in the patient's mouth.

[0025] Advantageously, dental restorative systems include crown materials. For example, crown materials can be provided in paste form so that they can be applied directly to the abutment tooth by a dentist or dentist. This ensures that the crown material and the abutment material fit / adapt / compact each other, thereby achieving proper bonding.

[0026] In a preferred embodiment, the dental restoration system includes a pin having a fixation structure corresponding to the fixation structure of the locking member, and the pin is configured to extend through a through-hole of the abutment tooth and to protrude above the abutment tooth when the abutment tooth is positioned on the gingival remodeling device and the fixation structure of the pin engages with the gingival remodeling device. Therefore, the pin is preferably made of a pin material configured not to bond with the crown material used to construct the crown.

[0027] The pin is configured to extend through a through-hole in the abutment tooth and is secured to the gingival reshaping device during crown construction on the abutment tooth. This effectively keeps the through-hole in the abutment tooth free of crown material. Furthermore, because the pin protrudes above the abutment tooth when secured to the gingival reshaping device, a straight channel can be formed within the crown. Therefore, after crown construction, the crown provides access to the through-hole in the abutment tooth. The channel and through-hole form a single channel in which a locking member can be disposed for mounting the crown and abutment tooth together onto the gingival reshaping device.

[0028] Therefore, in an advantageous embodiment, the dental restoration system includes a crown material for constructing a crown, wherein the pin material is configured to be non-bonded to the crown material during crown construction, and the abutment tooth material is configured to be bonded to the crown material during crown construction.

[0029] In particular, when a crown is formed directly onto the abutment tooth in such a manner that the crown and the abutment tooth form a single unit, the forces applied to the crown may be directly transmitted to the implant structure via the gingival reshaping device. This can introduce stress / pressure into the implant-to-jawbone healing process, potentially impairing the stability or resilience of the implant structure in the jaw, for example. To address this issue, preferably, the locking member has a fracture structure configured to fracture under a predetermined threshold load applied to the abutment tooth while the locking member is securing the abutment tooth to the gingival reshaping device.

[0030] Specifically, the threshold load can be related to the force or load applied to the crown and abutment when they are fixed to the implant structure by means of locking members. Thus, the fracture structure allows for the prevention of loads exceeding a predetermined threshold load from being applied to the implant structure during healing. This prevents the healing process from being halted or affected by mechanical stresses applied via the abutment and gingival appliance. This is particularly advantageous when the crown is formed directly on the abutment, allowing for direct force transmission.

[0031] Therefore, preferably, the locking member has an installation tool geometry configured to connect to an installation tool for securing the locking member to the gingival remodeling device, the installation tool geometry being located on a first side of the fracture structure. The locking member also has an auxiliary tool geometry configured to connect to a removal tool for removing the locking member from the gingival remodeling device after the fracture structure has broken, the auxiliary tool geometry being located on a second side of the fracture structure opposite to the first side of the fracture structure.

[0032] The geometry of the installation tool may be located at or near the oral end of the locking member. Therefore, the term "oral" refers to the end or direction facing the patient's oral cavity. It can be, in particular, opposite to the root apex side or root apex direction.

[0033] The installation tool geometry can be any structure that allows the installation tool to engage with a locking member for securing the locking member to the gingival remodeling device. The installation tool geometry can be a screw head portion having a recess corresponding to the shape of the portion of the installation tool to be connected to the locking member. Thus, the installation tool geometry can be implemented as a female engagement component. Furthermore, the shape of the recess can be adapted to / fit the shape of a standard installation tool.

[0034] The auxiliary tool geometry can be any structure that allows a disassembly tool to be engaged with the locking member for disassembling the locking member after its fracture structure has broken. The auxiliary tool geometry can be a screw head-like portion whose external shape corresponds to the shape of the disassembly tool to be connected. Similarly, the auxiliary tool geometry can be implemented as a male engagement portion. Furthermore, the external shape can be adapted to / fit the shape of a standard disassembly tool.

[0035] By providing two separate tool geometries (i.e., an installation tool geometry and an auxiliary tool geometry), proper routine installation and removal through the through-hole in the crown abutment is possible, and more specifically, proper removal is still possible even after the locking member breaks due to overload. In particular, after the locking member breaks, the crown, along with the crown abutment and a portion of the locking member, will be removed. The auxiliary tool geometry now still allows the gingival reshaping device to be released and removed from the implant structure without requiring cumbersome cutting or drilling or other material removal procedures.

[0036] Therefore, preferably, the locking member is arranged such that: the fractured structure is located on the apical side / closer to the apex of the mounting tool geometry, the auxiliary tool geometry is located on the apical side of the fractured structure, and the fixing structure is located on the apical side of the auxiliary tool geometry. In this way, it can be effectively achieved that the auxiliary tool geometry remains accessible after the locking member fractures. Therefore, the portion of the locking member that remains attached to the implant structure after the locking member fractures can be appropriately released, allowing the formed gingiva to be safely removed from the implant structure.

[0037] Preferably, the fracture structure of the locking member includes a weakened section having a reduced / smaller diameter compared to other sections of the locking member. This weakened section with a reduced diameter allows for precise definition of the threshold load, which limits the maximum load applied to the implant structure.

[0038] Additionally or alternatively, preferably, the fracture structure of the locking member is made of a material that is weaker than the other sections of the locking member. The weaker material can be entirely different from the material of the other sections of the locking member. It can also be a material that is constructed / structured differently, but is generally or chemically identical. For example, the weaker material can be the same as the material of the other sections, but it is provided with internal holes or similar cavities / openings to achieve the weaker structure / construction.

[0039] It can be used as an alternative to gingival reshaping devices and is used with the abutment tooth of the crown. Therefore, dental restorations can be intended for permanent or temporary restorations.

[0040] Preferably, the dental prosthetic system includes a gingival reshaping device having: an implant connection structure configured to allow the gingival reshaping device to be positioned on an implant structure placed in the patient's jaw; and an exposed contour configured to be located within the patient's gingiva when the gingival reshaping device is mounted on the implant structure. By incorporating the gingival reshaping device into the dental prosthetic system, it can be specifically designed to fit / adapt to the system.

[0041] Therefore, the gingival reshaping device preferably has a mounting structure corresponding to the fixing structure of the locking member. For example, the mounting structure can be embodied as a socket with internal threads, and the fixing structure of the locking member can be embodied as a corresponding post with external threads. In this way, the locking member can be effectively connected to the gingival reshaping device.

[0042] In another aspect, the present invention is a method for constructing a prosthesis on an implant structure placed in a patient's jaw. The method includes the following steps: mounting a gingival reshaping appliance to the implant structure; positioning a crown abutment tooth on the gingival reshaping appliance, wherein the crown abutment tooth has a through-hole configured to receive a locking member such that a contact surface of the locking member contacts the crown abutment tooth, and a fixation structure of the locking member extends at least partially from the crown abutment tooth to the gingival reshaping appliance; and arranging a pin having a fixation structure corresponding to the fixation structure of the locking member into the through-hole of the crown abutment tooth, such that the pin extends through the through-hole of the crown abutment tooth, and the fixation structure of the pin engages. A gingival reshaping device is used, with the pin protruding above the abutment tooth; a crown is constructed using a crown material that adheres to the abutment tooth but not to the pin, thereby forming an integral crown including the abutment tooth; the pin is removed, thereby providing a through hole in the crown; and the crown is secured to the gingival reshaping device by means of a locking member having a contact surface and a fixation structure configured to be secured to the gingival reshaping device, wherein the locking member is received in the through hole of the abutment tooth such that the contact surface of the locking member contacts the abutment tooth and the fixation structure engages the gingival reshaping device. This restoration can be, in particular, a temporary restoration.

[0043] The method according to the invention and the preferred embodiments thereof described below allow for the implementation and realization of the above-mentioned effects and benefits associated with the dental restoration system according to the invention and the preferred embodiments thereof described below.

[0044] Preferably, the locking member has a fracture structure configured to fracture under a predetermined threshold load applied to the crown when the locking member secures the crown to the gingival reshaping device.

[0045] Preferably, the crown is constructed in a smaller size compared to the tooth to be temporarily replaced. This smaller size allows for a reduction in the load or force acting on the crown during use, thereby reducing mechanical stress on the implant structure during healing. In particular, the size of the crown can be reduced to such an extent that chewing can still be performed substantially unrestricted / not significantly restricted, but the applied load or stress is sufficiently reduced. Attached Figure Description

[0046] The dental restoration system according to the invention and the method of constructing a restoration on an implant structure according to the invention are described in more detail below with reference to exemplary embodiments and the accompanying drawings, wherein:

[0047] Figure 1 An exploded view of an embodiment of the dental restoration system according to the present invention is shown;

[0048] Figure 2 It shows a partially assembled state. Figure 1 Side view of a dental restoration system;

[0049] Figure 3 The fully assembled state is shown. Figure 1 A cross-sectional view of a dental restoration system;

[0050] Figure 4 It shows a pin Figure 1 Side view of a dental restoration system;

[0051] Figure 5 It shows Figure 4 Perspective view; and

[0052] Figure 6 It shows Figure 4 A sectional view. Detailed Implementation

[0053] In the following description, certain terms are used for convenience and are not intended to limit the invention. The terms “right,” “left,” “up,” “down,” “below,” and “above” refer to directions in the figures. These terms include explicitly stated expressions and their derivatives and expressions with similar meanings. Furthermore, spatially relative terms such as “below,” “below,” “lower,” “above,” “upper,” “near,” and “far” may be used to describe the relationship between one element or feature and another element or feature as shown in the figures. These spatially relative terms are intended to cover different positions and orientations of the device in use or operation, in addition to those shown in the figures. For example, if the device in the figures is flipped, an element described as “below” or “under” other elements or features will be “above” or “on” other elements or features. Thus, the exemplary term “below” can encompass both above and below positions and orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly. Similarly, descriptions of movement along and around various axes include various specific device positions and orientations.

[0054] To avoid repetition of the descriptions of the accompanying drawings and various aspects and exemplary embodiments, it should be understood that many features are common to multiple aspects and embodiments. The omission of an aspect from the description or drawings does not mean that the aspect is missing from embodiments incorporating that aspect. Rather, the aspect may be omitted for clarity and to avoid lengthy descriptions. In this context, the following applies to the remainder of this specification: if, for clarity, the drawings contain reference numerals not set forth in the directly relevant parts of the specification, reference may be made to those reference numerals in preceding or subsequent descriptive sections. Furthermore, for clarity, if reference numerals are not used for all features of a component in one drawing, reference may be made to other drawings showing the same component. Similar reference numerals in two or more drawings denote the same or similar elements.

[0055] Figure 1 An exploded view of an embodiment of a dental prosthetic system 1 for restoring teeth during the healing process of an implant 5 placed in a patient's jaw is shown. The dental prosthetic system 1 includes a healing abutment tooth 4 as a gingival reshaping device, a temporary crown abutment tooth 3, and a crown screw 2 as a locking member. The healing abutment tooth 4 has an exposed contour portion 43 for soft tissue trimming or gingival reshaping. More specifically, the exposed contour portion 43 of the gingival reshaping device is configured to prepare and form the gingiva during the healing process of the implant 5 after its placement in the jaw. The healing abutment tooth 4 is mounted onto the implant 5, which is schematically depicted as a block in the figure.

[0056] The healed abutment tooth 4 has a flat abutment platform 42 at its apex or occlusal end for supporting the body 32 of the temporary crown abutment tooth 3. A positioning protrusion 41 protrudes occlusally or upward from the abutment platform 42. The positioning protrusion 41 is configured to define the orientation and position of the crown abutment tooth 3 when it is installed into the healed abutment tooth 4, as described in more detail below.

[0057] The crown screw 2, from top to bottom, has a screw head 21, a fracture post 22 as a weakened section of the fracture structure, a hexagonal head 23 as an auxiliary tool geometry, and a threaded portion 24 as a fixing structure. The fracture post 22 is cylindrical in shape and has a smaller diameter than the other parts of the crown screw 2. The fracture post is located between the screw head 21 and the hexagonal head 23. By having a smaller diameter, the fracture post 22 has lower resistance to loads or forces applied to the crown screw 2. Therefore, the fracture post 22 defines the maximum load or threshold that the crown screw 2 can withstand. If the crown screw 2 is exposed to a load exceeding the threshold, the fracture post 22 will break. Therefore, the hexagonal head 23 is exposed, allowing the hexagonal screw tool to access it. The threaded portion 24 is implemented as a cylinder with a diameter larger than that of the fracture post 22. The outer circumference of the cylinder of the threaded portion 24 is equipped with external threads.

[0058] exist Figure 2The image shows a dental restoration system 1 in which a crown abutment 3 is positioned on a healed abutment 4, with its flat lower end abutting the abutment platform 42 of the healed abutment 4. Thus, the positioning protrusion 41, together with the corresponding cavity of the crown abutment 3, ensures the correct positioning of the crown abutment 3 on the abutment platform 42 and the correct rotational orientation of the crown abutment 3 relative to the healed abutment 4 and the implant 5.

[0059] Figure 3 A cross-sectional view of the dental restoration system 1 in its assembled state is shown. It can be seen that the gingival reshaping device 3 is fixed to the implant 5 by an implant screw 7 having a top head and a bottom threaded portion 72, the top head having a conical portion 71 for applying lower pressure. The implant 5 has a vertical central blind hole with a gingival reshaping device insertion section 51 at the top and a screw insertion section 52 at the bottom. The healed abutment tooth 4 is situated in the blind hole of the implant 5 such that the lower end of the healed abutment tooth 4 is located in the gingival reshaping device insertion section 51 of the implant 5.

[0060] The healed abutment tooth 4 has a vertical central bore 44 extending through it and equipped with a pressure-receiving conical portion 411. An implant screw 7 is positioned in the healed abutment tooth 4 such that its head is within the bore 44 and its threaded portion 72 extends from the healed abutment tooth 4. More specifically, the implant screw 7 is screwed into a blind hole of the implant 5, wherein the threaded portion 72 engages the screw insertion section 52. Thus, the pressure-applying conical portion 71 of the implant screw 7 presses against the pressure-receiving section 411 of the healed abutment tooth 4, thereby rigidly fixing the healed abutment tooth 4 to the implant 5.

[0061] The abutment tooth 3 has a through hole 31 configured to receive a locking screw 2. The locking screw 2 is located in the through hole 31 such that the bottom surface 211 of its head 21 abuts against the abutment tooth 3, thereby forming a contact surface. A threaded portion 24 extends downward beyond the abutment tooth 3 and into the inner hole 44 of the healed abutment tooth 4. More specifically, the threaded portion 24 engages with a corresponding internal thread formed in the inner hole 44. Thus, the bottom surface 211 of the head 21 is pressed against the abutment tooth 3, thereby securely fixing the abutment tooth 3 to the healed abutment tooth 4. A crown 6 is formed on top of the abutment tooth 3 according to an embodiment of the method of the present invention, as described below:

[0062] As described above, the healed abutment tooth 4 is installed on the implant 5, and the crown abutment tooth 3 is positioned on the healed abutment tooth 4. However, as Figures 4 to 6 As shown, before the locking screw 2 is inserted, a pin 102 having a fixing structure 124 corresponding to the threaded portion 24 of the locking screw 2 is disposed in the through hole 31 of the crown abutment tooth 3, such that the pin extends through the through hole 31 and engages the healed abutment tooth 4. Thus, the pin 102 protrudes above the crown abutment tooth 3.

[0063] Then, a resin-based composite material is obtained as the crown material. The crown abutment 3 is made of an abutment material configured to bond with the resin-based composite material. Conversely, the pin 102 is made of a pin material configured not to bond with the resin-based composite material.

[0064] The crown 6 is formed by building a composite material layer by layer onto the abutment tooth 3, based on the natural tooth to be restored. Therefore, the crown material and the composite material are combined, making the abutment tooth 3 and the crown 6 a single, integrated piece. The crown 6 is slightly smaller in size than the natural tooth to be restored.

[0065] After the crown 6 is constructed, the pin 102 is removed from the healed abutment tooth 4, thereby providing a through hole in the crown 6 through which the through hole 31 of the crown abutment tooth 3 can be accessed.

[0066] Figure 4 and Figure 5 The diagram shows a pin 102 positioned within a through-hole 31 of a crown abutment 31, which in turn rests on a healed abutment 4. The pin 102 has a rod element 104 extending through the through-hole 31. The rod element 104 serves as a placeholder or mold for forming a through-hole in the crown 6, thereby creating a continuous through-hole through the crown 6, the crown abutment 3, and the healed abutment 4. The pin 102 also has a shank 103 for mounting the pin 102 and adjusting its position and orientation, thereby facilitating the placement of the pin 102 and improving the accuracy of the through-hole formation.

[0067] Figure 6 The pin 102 is shown to have a fixing structure 124 of the same form as the threaded portion 24 of the locking screw 2. After the through hole is formed, the pin 102 is removed. Because the pin 102 is made of a pin material that does not bond with the crown material, there is no residue when the pin 102 is removed, and a through hole of appropriate size and orientation is formed in the crown 6. Therefore, the through hole in the crown 6 can be formed with relatively high precision.

[0068] This specification and the accompanying drawings illustrating aspects and embodiments of the invention should not be construed as limiting the scope of the claims defining the protected invention. In other words, while the invention has been shown and described in detail in the drawings and the foregoing description, such illustrations and descriptions should be considered illustrative or exemplary rather than restrictive. Various mechanical, compositional, structural, electrical, and operational changes can be made without departing from the spirit and scope of this specification and claims. In some cases, well-known circuits, structures, and techniques have not been shown in detail to avoid obscuring the invention. Therefore, it should be understood that those skilled in the art can make changes and modifications within the scope and spirit of the following claims. In particular, the invention covers other embodiments having any combination of features of the different embodiments described above and below.

[0069] This disclosure also covers all other features shown in the accompanying drawings, although they may not have been individually described in the preceding or following description. Furthermore, a single alternative to the embodiments described in the drawings and specification, and a single alternative to their features, may be omitted from the subject matter of the invention or from the disclosed subject matter. This disclosure includes subject matter consisting of features defined in the claims or exemplary embodiments, as well as subject matter incorporating said features.

[0070] Furthermore, in the claims, the term "comprising" does not exclude other elements or steps, and the indefinite articles "a" or "an" do not exclude multiple. A single unit or step can perform the function of multiple features recited in the claims. The mere fact that specific measures are recited in mutually different dependent claims does not mean that the combination of these measures cannot be used advantageously. Terms such as "substantially," "about," "approximately," etc., combined with qualifiers or values, in particular also explicitly define the qualifier or the value, respectively. The term "about" in the context of a given numerical value or range refers, for example, to a value or range within 20%, 10%, 5%, or 2% of the given value or range. Components described as connected or linked may be electrically or mechanically directly connected, or they may be indirectly connected via one or more intermediate components. No reference numerals in the claims should be construed as limiting the scope of protection.

Claims

1. A dental restoration system (1) for restoring teeth at least during the healing process of an implant structure (5) placed in a patient's jaw, the dental restoration system comprising: Integrated gingival reshaping appliance (4); Implant screw (7) configured to fix gingival reshaping device (4) to implant structure (5); Crown abutment tooth (3), the crown abutment tooth being configured to be positioned on a gingival shaping appliance (4) mounted to the implant structure (5); and A locking member (2) having a contact surface (212) and a fixing structure (24), the fixing structure (24) being configured to be fixed to the mounting structure of the gingival shaping appliance (4), wherein, The mounting structure is a threaded insertion hole. The fixing structure is a corresponding post with external threads. The crown abutment tooth (3) has a through hole (31) configured to receive the locking member (2) such that the contact surface (212) of the locking member (2) contacts the crown abutment tooth (3) and the fixing structure (24) extends at least partially from the crown abutment tooth (3). The crown abutment (3) is made of abutment material configured to bond with crown material used to construct the crown (6).

2. The dental restoration system (1) according to claim 1, comprising a pin (102), wherein, The pin (102) has a fixing structure (124) corresponding to the fixing structure (24) of the locking member (2), and The pin (102) is configured to extend through the through hole (31) of the crown abutment tooth (3) and to protrude above the crown abutment tooth (3) when the crown abutment tooth (3) is located on the gingival reshaping device (4) and the fixing structure (124) of the pin (102) engages with the gingival reshaping device (4).

3. The dental restoration system (1) according to claim 2, wherein, The pin (102) is made of a pin material configured not to bond with the crown material used to construct the crown (6).

4. The dental restoration system (1) according to claim 2, comprising a crown material for constructing the crown (6), wherein the pin material is configured to be non-bonded to the crown material during the construction of the crown (6), and the abutment material is configured to be bonded to the crown material during the construction of the crown (6).

5. The dental restoration system (1) according to claim 4, wherein, The crown material is a composite material.

6. The dental restoration system (1) according to claim 1, wherein, The locking member (2) has a fracture structure (22) configured to fracture under a predetermined threshold load applied to the crown abutment tooth (3) when the locking member (2) fixes the crown abutment tooth (3) to the gingival reshaping device (4).

7. The dental restoration system (1) according to claim 6, wherein, The locking member (2) has an installation tool geometry (211) configured to connect to an installation tool for securing the locking member (2) to the gingival reshaping device (4). The geometric part (211) of the installation tool is located on the first side of the fracture structure (22). The locking member (2) has an auxiliary tool geometry (23) configured to connect to a disassembly tool for removing the locking member (2) from the gingival reshaping device (4) after the fracture structure (22) has broken. The auxiliary tool geometry (23) is located on the second side of the fracture structure (22) opposite to the first side of the fracture structure (22).

8. The dental restoration system (1) according to claim 7, wherein, The locking member (2) is arranged such that: The fracture structure (22) is located on the root tip side of the geometric part (211) of the installation tool; The auxiliary tool geometry (23) is located on the root apex side of the fractured structure (22); and The fixing structure (24) of the locking member (2) is located on the root tip side of the auxiliary tool geometry (23).

9. The dental restoration system (1) according to claim 6, wherein, The fracture structure (22) of the locking member (2) includes a weakened section having a smaller diameter compared to other sections of the locking member (2).

10. The dental restoration system (1) according to claim 9, wherein, The fracture structure (22) of the locking member (2) is made of a material that is weaker than the other sections of the locking member (2).

11. The dental restoration system (1) according to claim 1, comprising a gingival reshaping device (4) having: an implant connection structure configured to allow the gingival reshaping device (4) to be positioned on an implant structure (5) placed in the patient's jaw; and an exposed contour portion (43) configured to be located within the patient's gingiva when the gingival reshaping device (4) is mounted on the implant structure (5).

12. The dental restoration system (1) according to claim 11, wherein, The gingival shaping device (4) has an installation structure corresponding to the fixing structure (24) of the locking member (2).

13. The dental restoration system (1) according to claim 5, wherein, The crown material is a resin-based composite material.

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