EP4554632A1 - Pastöses, biokompatibles material zur verwendung, in einem verfahren zur unterstützung einer knochenneubildung, deren zusammensetzung und aus dem pastösen material gebildetes formteil - Google Patents
Pastöses, biokompatibles material zur verwendung, in einem verfahren zur unterstützung einer knochenneubildung, deren zusammensetzung und aus dem pastösen material gebildetes formteilInfo
- Publication number
- EP4554632A1 EP4554632A1 EP23744067.2A EP23744067A EP4554632A1 EP 4554632 A1 EP4554632 A1 EP 4554632A1 EP 23744067 A EP23744067 A EP 23744067A EP 4554632 A1 EP4554632 A1 EP 4554632A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bone
- weight
- mta
- pasty
- biocompatible
- 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
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0015—Medicaments; Biocides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/0047—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L24/0052—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material with an inorganic matrix
- A61L24/0063—Phosphorus containing materials, e.g. apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/0047—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L24/0052—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material with an inorganic matrix
- A61L24/0068—Inorganic materials not covered by groups A61L24/0057 or A61L24/0063
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/3641—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix characterised by the site of application in the body
- A61L27/3645—Connective tissue
- A61L27/365—Bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L27/446—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with other specific inorganic fillers other than those covered by A61L27/443 or A61L27/46
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/58—Materials at least partially resorbable by the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
- A61L2300/406—Antibiotics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
Definitions
- Pasty biocompatible material for use in a process for supporting new bone formation, its composition and molded part formed from the pasty material
- the present invention relates to a pasty, biocompatible material for supporting new bone formation in flat lesions on or in a bone, in particular a jawbone, which are not determined by surrounding bone material.
- a pasty, biocompatible material for supporting new bone formation in flat lesions on or in a bone, in particular a jawbone, which are not determined by surrounding bone material.
- the situation is to be understood as flat when bone material has been resorbed in such a way that only the bone base is still present, but not the surrounding bone material or bone walls.
- the latter is the case, for example, with a tooth extraction.
- the cavity created by the extraction is surrounded on four sides by bone material, which provides bone cells for independent regeneration and new bone formation.
- the material consists of a combination of calcium-containing base material, mineral trioxide aggregate (MTA), antibiotic and a liquid.
- MTA mineral trioxide aggregate
- the calcium-containing base material is completely reabsorbed, while the MTA remains in the newly formed bone.
- the known methods prove to be disadvantageous, particularly in dentistry.
- the aim is to treat large-scale lesions without filling the surrounding bone material with new bone material.
- Known replacement materials have the disadvantage that they are reabsorbed too quickly, so that new bone is not formed to a sufficient extent.
- the newly formed bone material must be sufficiently stable and in place Original bone of an appropriate amount and height must be present in order to be able to firmly anchor implants, for example, in a follow-up treatment.
- the present invention overcomes the disadvantages of known materials and treatments by providing a pasty, biocompatible material that was specifically developed for new bone formation in flat lesions not determined by surrounding bone material.
- the material hardens after the lesions have been filled and forms a dimensionally stable molded part.
- the pasty material consists of a mixture of calcium-containing base material, mineral trioxide aggregate (MTA), antibiotic and a liquid.
- MTA mineral trioxide aggregate
- MTA mineral trioxide aggregate
- the situation is to be understood as flat when bone material has been resorbed in such a way that only the bone base is still present, but not the surrounding bone material or bone walls. The latter is the case, for example, with a tooth extraction.
- the cavity created by the extraction is surrounded on four sides by bone material, which provides bone cells for independent regeneration and new bone formation.
- the dimensionally stable molded part formed allows the immigration of bone cells from the bone base and provides a stable base and framework structure for the formation of new bone and the complete regeneration of the lesion as
- the calcium-containing base material which makes up between 50% and 70% by weight, preferably 65% by weight of the material, can come from a variety of sources, including aragonite, mussel shell, mussel limestone, allogeneic bone material, autogenous bone material, xenogeneic Bone material, FDBA (freeze-dried bone allocrafts), DFBA (decalzified freeze-dried bone allocrafts), algae or algae extract, ceramics, calcium phosphate, in particular tri- or tetracalcium phosphate, X- or ß-tricalcium phosphate, hydroxyl apatite, calcium phosphate Ceramics, bioglass, aragonite-based bone replacement material (e.g. BioCoral®) or mixtures thereof.
- sources including aragonite, mussel shell, mussel limestone, allogeneic bone material, autogenous bone material, xenogeneic Bone material, FDBA (freeze-dried bone allocrafts), DFBA (de
- the calcium-containing base material from donor bones.
- Calcium-containing base material made from bones from bone banks is also included in the invention.
- the invention also sees the use of FDBA (freeze dried bone allacrafts) or DFDBA (decalcified freeze dried bone allocrafts) as advantageous.
- FDBA freeze dried bone allacrafts
- DFDBA decalcified freeze dried bone allocrafts
- the use of xenogeneic materials to produce the calcium-containing base material also proves to be beneficial. Bones from cattle, pigs and horses are particularly suitable for producing calcium-containing base materials that are suitable for humans.
- the calcium-containing base material from algae, in particular algae extracts, corals or mussels.
- the shells of mussels prove to be particularly suitable for the production of the calcium-containing base material, as they consist of a calcium-protein mixture, more precisely of aragonite, and can therefore be absorbed particularly well by the body.
- the calcium-containing base material from autogenous material, i.e. material provided by the patient himself.
- autogenous material i.e. material provided by the patient himself.
- bone material is first removed from the patient, processed into powder or granules and prepared for use in the pasty material according to the invention, which is inserted or implanted into the patient as part of a further treatment. This is where the probability of inflammatory reactions occurring in the patient's body is lowest.
- alloplastic materials such as calcium phosphates, ceramics or bioglasses for the production of the calcium-containing base material.
- the mineral trioxide aggregate which makes up between 15% by weight and 40% by weight, preferably 20% by weight, of the material, consists of a mixture of tricalcium silicate, dicalcium silicate, tricalcium aluminate and gypsum.
- the mineral trioxide aggregate (MTA) can additionally contain a substance that increases the radiopacity, such as bismuth (III) oxide.
- the proportion is then between 0.1 and 30% by weight, preferably 20% by weight, of bismuth (III) oxide (Bi20s) in the MTA component.
- the antibiotic which makes up between 10% and 25% by weight of the material, can be selected from a variety of antibiotics used in particular in dentistry or mixtures of several antibiotics.
- the pasty, biocompatible material can also contain another substance that supports new bone formation.
- This further substance can be selected from the group of statin, vitamin, trace element, hyaluronic acid, hyaluronic acid derivative, collagen and/or mixtures thereof.
- the proportion of this additional substance in the material is preferably between 0.1% by weight and 3% by weight, in particular between 0.2% by weight and 1.5% by weight, preferably 0.25% by weight. .
- hyaluronic acid (or hyaluronic acid derivatives) that can be used in connection with the present invention has a beneficial effect on the treatment of pathological changes in the periodontium and shows positive effects on fibroblasts, bone regeneration and wound healing.
- hyaluronic acid (or its derivatives) can be added or mixed directly into the composition according to the invention.
- the site of use can be added or rinsed with a hyaluronic acid preparation.
- Hyaluronic acid has various functions.
- hyaluronic acid in connection with the present invention provides that three-dimensional mesh networks are formed in an aqueous environment as a result of spontaneous aggregation of the hyaluronic acid chains. Cellular and fibrous components can be embedded in this. This promotes and encourages the development of a bone structure.
- hyaluronic acid has a regulating function in the organization of the extracellular matrix and its components.
- the hyaluronic acid network formed is a prerequisite for the exchange of substances and at the same time serves as a barrier against the penetration of foreign substances. By forming the networks and their condensation, cells can be protected from degradation processes and hydroxyl radicals.
- hyaluronic acid serves to protect various cell types from external influences, such as viral or bacterial ones, and thus also promote the probability of survival of the osteoblasts.
- Negatively charged hyaluronic acid also has the ability to bind high amounts of water and various plasma proteins via hydrogen bonds and the polar ends and thus acts as a type of "osmotic buffer". extracellular matrix.
- Hyaluronic acid also proves to be beneficial in combating chronic inflammation and has anti-inflammatory potential.
- Hyaluronic acid also influences cellular growth factors and therefore has a positive influence on cellular growth processes and thus supports tissue regeneration.
- the regeneration of the bone or bone material can be significantly improved.
- the present invention enables a form of ossification or osteogenesis that is clearly superior to the prior art, especially in patients in whom bone material has been resorbed in such a way that only the bone base is still present, but not surrounding bone material or Bone walls.
- the cavity created by the extraction is surrounded on four sides by bone material. This provides bone cells for independent regeneration and new bone formation.
- spontaneous bone regeneration and augmentation from the bone base is not possible.
- statins vitamins, trace elements or mixtures thereof
- vitamins and trace elements promote the supply of newly formed cells
- statins or statin preparations serve to modulate the immune system and thus reduce the tendency to inflammation.
- the invention is not limited to the aforementioned substances, but includes all substances and substance mixtures that are familiar to those skilled in the art and can be used in connection with the present invention.
- the mineral trioxide aggregate (MTA) in the pasty material consists in particular of a mixture of tricalcium silicate, dicalcium silicate, tricalcium aluminate and gypsum.
- the proportion of a mixture of tricalcium silicate (CaOs SiCte), dicalcium silicate (CaO2-SiO'), tricalcium aluminate (CaOs A ⁇ Os), in the MTA is preferably between 70 and 80% by weight, preferably 75% by weight, during the Proportion of gypsum (CaSO4-2 H2O) is between 1 and 10% by weight, preferably 5% by weight.
- the pasty, biocompatible material is used to form a dimensionally stable molded part after curing.
- This molded part is formed by applying the pasty material to the remaining bone base in a flat lesion under the periosteum that is not determined by surrounding bone material and then hardens.
- the periosteum covers the lesion and is preferably injected with the pasty material.
- the pasty, biocompatible material to support new bone formation and/or bone augmentation consists of 50% to 70% by weight of calcium-containing base material, 15% to 40% by weight of mineral trioxide aggregate (MTA), 15% by weight to 25% by weight of one or more antibiotics and 0.1% by weight to 1.0% by weight of a liquid, which is preferably demineralized water or saline solution (NaCl).
- MTA mineral trioxide aggregate
- a liquid which is preferably demineralized water or saline solution (NaCl).
- the calcium-containing base material can come from various sources, such as aragonite, mussel shell, allogeneic bone material, autogenous bone material, xenogenous bone material, FDBA (freeze-dried bone allocrafts), DFBA (decalzified freeze-dried bone allocrafts), algae or algae extract, ceramics, Calcium phosphate (in particular tri- or tetracalcium phosphate, X- or ß-tricalcium phosphate, hydroxyl apatite), calcium phosphate ceramic, bioglass, aragonite-based bone replacement material (e.g. BioCoral®) or mixtures thereof.
- the antibiotic can be selected from a group of antibiotics used in particular in dentistry or mixtures thereof.
- antibiotics examples include penicillin, amoxicillin, clindamycin, metronidazole, erythromycin, tetracycline, doxycycline, ciprofloxacin, levofloxacin, azithromycin, minocycline, lincomycin, gentamicin, vancomycin, moxifloxacin, rifampicin, sulfamethoxazole/trimethoprim, amikacin, ceftazidime, ceftriaxone, imipenem, merop e - nem, ampicillin, chloramphenicol, nystatin, ketoconazole, fluconazole or voriconazole, without restricting the invention to this.
- the non-absorbable MTA in the biocompatible molded part has several beneficial effects for new bone formation, thus enabling a significantly higher growth of bone material.
- the calcium-containing base material is reabsorbed, but the non-absorbable mineral trioxide aggregate (MTA) remains in the newly formed bone material in the filled bone lesion and is incorporated into the newly formed bone substance.
- mineral trioxide aggregate (MTA) forms scaffolding structure.
- osteoclasts break down the calcium-containing base material and thus provide the basis for the settlement of osteoblasts in the cavities that form as a result of the breakdown.
- the bone structure surrounding the cavities is additionally stabilized by Mineral Trioxide Aggregate (MTA) and the length of time in which bone growth is possible is extended. This results in a larger, ie higher bone augmentation or enables the formation of new bone in larger bone sections or lesions. This also applies to patients in whom only the bone base is still present.
- Mineral Trioxide Aggregate (MTA) also provides a basis for cell growth, as bone cells attach to the Mineral Trioxide Aggregate (MTA), thereby further promoting new bone formation.
- the bone augmentation of an existing bone structure is significantly improved. In particular, bone augmentation of up to between 1.8 and 2.0 cm is possible.
- mineral trioxide aggregate (MTA) has a blood-binding effect immediately after the surgical procedure and also has an anti-inflammatory effect due to the setting of an alkaline pH value in the surgical area.
- the molded part formed from the hardened pasty material in the lesion is reabsorbed down to the mineral trioxide aggregate (MTA) portion.
- MTA mineral trioxide aggregate
- This invention thus provides an improved pasty, biocompatible material to support new bone formation and bone augmentation, which was specifically developed for the treatment of lesions on or in bones, in particular jawbones, in which only the bone base is still present, but not surrounding bone material or bone walls is/are.
- the present invention also relates to a composition for producing a pasty biocompatible material for use in flat lesions on or in a bone, in particular in a jawbone, which are not determined by surrounding bone material.
- the composition consists of a calcium-containing, structuring base material, mineral trioxide aggregate (MTA) and at least one antibiotic.
- the calcium-containing structuring base material can be selected from a variety of materials, including aragonite, mussel shell, allogeneic bone material, autogenous bone material, xenogeneic bone material, FDBA (freeze-dried bone allocrafts), DFBA (decalzified freezedried bone allocrafts), algae or algae extract, ceramics, Calcium phosphate (in particular tri- or tetracalcium phosphate, X- or ß-tricalcium phosphate, hydroxyl apatite), calcium phosphate ceramic, bioglass, aragonite-based bone replacement material (e.g. BioCoral®) or mixtures thereof.
- materials including aragonite, mussel shell, allogeneic bone material, autogenous bone material, xenogeneic bone material, FDBA (freeze-dried bone allocrafts), DFBA (decalzified freezedried bone allocrafts), algae or algae extract, ceramics, Calcium phosphate (in particular tri- or
- the mineral trioxide aggregate (MTA) in the composition consists of or includes tricalcium silicate (CaOs SiCte), dicalcium silicate (CaC ⁇ SiCte), tricalcium aluminate (CaOs A ⁇ Os) and gypsum (CaSO4-2 H2O).
- the composition of the mineral trioxide aggregate (MTA) additionally has a radiopacity-increasing substance, in particular bismuth (III) oxide (Bi20s), in an amount between 0.1 and 30% by weight, preferably 20% by weight. %, on.
- a radiopacity-increasing substance in particular bismuth (III) oxide (Bi20s)
- Bi20s bismuth oxide
- the composition also contains at least one antibiotic selected from a group of antibiotics which are particularly suitable for use in dentistry, preferably in bone regeneration.
- the composition typically consists of 50% by weight to 70% by weight, preferably 65% by weight of the calcium-containing base material, 15% by weight to 40%, preferably 20% of the mineral trioxide aggregate (MTA) and 15% to 25% of the antibiotic.
- MTA mineral trioxide aggregate
- the mineral trioxide aggregate (MTA) is available in powder form or as granules and is homogeneously distributed in the base material. These properties enable easy handling and application of the composition.
- composition according to the invention offers an improved treatment option for bone lesions, particularly in the jawbone, by promoting tissue regeneration and wound healing and creating a suitable environment for the cells.
- the powdery components described above (calcium-containing structuring base material, mineral trioxide aggregate (MTA) and antibiotic/antibiotics and optionally other aforementioned substances) are first mixed and after adding the liquid, preferably demineralized water or saline solution (NaCl). to mixed to desired consistency.
- the pasty material can then be drawn up with an injection syringe and introduced into the lesion.
- the present invention also relates to a biocompatible molded part for use in a method for supporting new bone formation, in particular for bone augmentation of an existing bone structure.
- the biocompatible molded part is characterized in that it is formed from a pasty material as described above after a flat lesion on or in a bone, in particular in a jawbone, which is not determined by surrounding bone material, has decayed with the pasty material.
- the molded part consists of a calcium-containing, structuring base material, mineral trioxide aggregate (MTA) and at least one antibiotic.
- the molding contains between 50% by weight and 70% by weight, preferably 65% by weight, of the calcium-containing base material, between 15% by weight and 40% by weight, preferably 20% by weight. of the mineral trioxide aggregate (MTA) and between 15% by weight and 25% by weight of at least one antibiotic.
- MTA mineral trioxide aggregate
- the molded part can in particular contain at least one further substance.
- the further substance can be selected from the group consisting of statin, vitamin, trace element, hyaluronic acid, hyaluronic acid derivative, collagen and/or mixtures thereof.
- the proportion of the further substance in the molded part is in particular between 0.1% by weight and 3% by weight, preferably between 0.2% by weight and 1.5% by weight, with 0.25% by weight is preferred.
- the molded part When used in a process to support new bone formation, in particular in a jawbone, the molded part provides a basic structure for new bone formation.
- the base material and the antibiotic are completely reabsorbed in the course of new bone formation, while the mineral trioxide aggregate (MTA) remains in the newly formed bone.
- MTA mineral trioxide aggregate
- the molded part enables the filling of flat lesions on or in a bone, in particular in a jawbone, which are not clearly determined by the surrounding bone material or in which only the bone base is/are present, but not the surrounding bone material or bone walls.
- the molded part is preferably in situ in a flat area, not through the surrounding area
- Bone material determined lesion on or in a bone from a hardened, pasty material is formed.
- the molded part is formed directly in the lesion and thus tailored to its shape and extent after injecting a periosteum covering the flat lesion that is not determined by surrounding bone material.
- the present invention enables effective support of new bone formation and bone augmentation in existing bone structures.
- the biocompatible molded part provides a structuring basic structure and is resorbed in the course of new bone formation, while the mineral trioxide aggregate (MTA) remains in the bone. Additional benefits can be achieved by adding other substances.
- the invention also relates to mineral trioxide aggregate (MTA) for use in the treatment of bone deficits, in particular in the treatment of periodontal disease in a biocompatible molded part formed from a pasty material, wherein the filling of a flat lesion that is not determined by surrounding bone material on or in a Bone, in particular provided in a jawbone.
- MTA mineral trioxide aggregate
- the present invention relates to a mineral trioxide aggregate (MTA) that was specifically developed for the treatment of bone deficiencies, in particular for the treatment of periodontal disease.
- Periodontitis is a disease in which there is a loss of bone tissue around the teeth, which leads to a weakening of the periodontium. To counteract these bone deficits, various bone regeneration methods are used.
- MTA Mineral trioxide aggregate
- MTA mineral trioxide aggregate
- MTA mineral trioxide aggregate
- MTA Mineral trioxide aggregate
- MTA Mineral Trioxide Aggregate
- MTA Mineral trioxide aggregate
- This increases the chances that vessels can grow simultaneously throughout the entire lesion. These vessels serve to supply the osteoblasts with nutrients, so that ossification or osteogenesis can occur, in the course of which new bone material is formed and thus, for example, a jawbone that has been damaged due to periodontitis can be rebuilt.
- the molded part which is preferably formed in situ, is more dimensionally stable over a longer period of time than known molded parts and can be individually dimensioned sufficient ossification or osteogenesis, i.e. when a supporting structure is no longer needed, the resorption process is complete and mineral trioxide aggregate (MTA) continues to remain in the bone as a supporting matrix.
- MTA mineral trioxide aggregate
- MTA Mineral Trioxide Aggregate
- This molded part enables precise placement of the Mineral Trioxide Aggregate (MTA) in the affected areas, especially in flat lesions that are not determined by surrounding bone material. This is particularly advantageous in the treatment of periodontal disease as it enables targeted and effective filling of bone deficits.
- MTA Mineral Trioxide Aggregate
- the use of the mineral trioxide aggregate (MTA) and the biocompatible molding containing it is particularly preferred in the treatment of periodontal disease in the jawbone.
- the jawbone is susceptible to bone deficits due to periodontal disease, and the targeted use of the Mineral Trioxide Aggregate (MTA) in conjunction with the biocompatible molding can lead to effective bone regeneration.
- MTA Mineral Trioxide Aggregate
- the present invention offers an improved solution for treating bone deficiencies.
- the pasty material according to the invention was implanted under the periosteum in a region with degraded jawbone after local anesthesia and the biocompatible molded part was formed there in situ.
- the pasty material was made by mixing 60% by weight of shell limestone,
- MTA mineral trioxide aggregate
- Manufactured drawn up with a conventional cannula and then injected under the periosteum to the desired future level of bone augmentation.
- a bone cylinder with a maximum length of 0.7 cm and a diameter of 0.2 cm was taken from the region in which new bone was formed and the regeneration potential of the material was determined using this sample.
- Fig. 1 shows the situation of a lesion before treatment in a schematic representation
- 2 shows the situation after filling the lesion and forming the biocompatible molded part according to the invention in a schematic representation
- Fig. 3 shows the situation with a completely regenerated lesion and bone augmentation in a schematic representation
- Fig. 1 Situation of a lesion before treatment
- Fig. 1 shows a schematic representation of the situation of a lesion 1 immediately after treatment with the pasty material of the invention. It was a flat lesion 1 in which the surrounding bone material 2 was resorbed and only the bone base 3 is still present. This can occur, for example, with periodontal disease in the jawbone. Remaining teeth 4 can be seen in FIG. 1, outside the degraded bone structure. The resulting space 5 is, unlike extractions, not surrounded by bone material that could ensure the regeneration and formation of new bone cells. Lesion 1 is covered by periosteum 8.
- FIG. 2 shows a schematic representation of the situation after the lesion 1 has been filled with the pasty, biocompatible material 6.
- the material 6 has hardened and has formed a dimensionally stable molded part 7 in the lesion 1. This creates a stable base and scaffolding structure that allows bone cells to invade lesion 1 and form new bone.
- the molded part 7 was formed in situ in a flat lesion 1, not determined by surrounding bone material, on the remaining bone base 3 from the pasty material of the present invention and after it had hardened. After injecting a periosteum 8 covering the lesion, the molded part 7 is placed directly in the lesion 1 and thus on it
- the non-absorbable MTA 10 in the biocompatible molded part 7 enables a significantly higher growth of bone material.
- the calcium-containing base material 11 is resorbed, but the non-absorbable mineral trioxide aggregate (MTA) remains in the newly formed bone material in the filled lesion 1 and is incorporated into the newly formed bone substance.
- mineral trioxide aggregate (MTA) forms a framework structure.
- osteoclasts break down the calcium-containing base material and thus provide the basis for the settlement of osteoblasts in the bone Degradation-forming cavities are available.
- the bone structure surrounding the cavities is additionally stabilized by Mineral Trioxide Aggregate (MTA) and the length of time in which bone growth is possible is extended. This results in greater, ie higher, bone augmentation or enables the formation of new bone in larger bone sections or lesions 1. This also applies to patients in whom, as in Fig. 1. shown, only the bone base 3 is still present.
- Mineral Trioxide Aggregate (MTA) also provides a basis for cell growth, as bone cells attach to the Mineral Trioxide Aggregate (MTA), thereby further promoting new bone formation.
- the bone augmentation of an existing bone structure is significantly improved. In particular, bone augmentation of up to between 1.8 and 2.0 cm is possible.
- mineral trioxide aggregate (MTA) has a blood-binding effect immediately after the surgical procedure and also has an anti-inflammatory effect due to the setting of an alkaline pH value in the surgical area.
- Fig. 3 shows a schematic representation of the situation after complete regeneration of lesion 1 and bone augmentation.
- the pasty material has led to the formation of new bone that adjoins the existing bone material and increases the bone base 3, which completely regenerated the lesion 1. This means that there is a sufficient amount and height of bone to stably anchor implants 9, for example.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022117264.3A DE102022117264A1 (de) | 2022-07-11 | 2022-07-11 | Mineral Trioxid Aggregat (MTA) zur Verwendung bei der Neubildung eines Kieferknochens oder Kieferknochenabschnittes, Biokompatibles Formteil aufweisend MTA und Verwendung von MTA bei der Behandlung von Parodontose |
| PCT/EP2023/069087 WO2024013119A1 (de) | 2022-07-11 | 2023-07-10 | Pastöses, biokompatibles material zur verwendung, in einem verfahren zur unterstützung einer knochenneubildung, deren zusammensetzung und aus dem pastösen material gebildetes formteil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4554632A1 true EP4554632A1 (de) | 2025-05-21 |
Family
ID=87418747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23744067.2A Pending EP4554632A1 (de) | 2022-07-11 | 2023-07-10 | Pastöses, biokompatibles material zur verwendung, in einem verfahren zur unterstützung einer knochenneubildung, deren zusammensetzung und aus dem pastösen material gebildetes formteil |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP4554632A1 (de) |
| KR (1) | KR20250034919A (de) |
| AU (1) | AU2023305813A1 (de) |
| CA (1) | CA3253292A1 (de) |
| DE (1) | DE102022117264A1 (de) |
| IL (1) | IL316636A (de) |
| WO (1) | WO2024013119A1 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015100806A1 (de) | 2015-01-20 | 2016-07-21 | Antonis Alexakis | Biokompatibles Formteil |
-
2022
- 2022-07-11 DE DE102022117264.3A patent/DE102022117264A1/de active Pending
-
2023
- 2023-07-10 IL IL316636A patent/IL316636A/en unknown
- 2023-07-10 EP EP23744067.2A patent/EP4554632A1/de active Pending
- 2023-07-10 WO PCT/EP2023/069087 patent/WO2024013119A1/de not_active Ceased
- 2023-07-10 AU AU2023305813A patent/AU2023305813A1/en active Pending
- 2023-07-10 CA CA3253292A patent/CA3253292A1/en active Pending
- 2023-07-10 KR KR1020247043523A patent/KR20250034919A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IL316636A (en) | 2024-12-01 |
| WO2024013119A1 (de) | 2024-01-18 |
| KR20250034919A (ko) | 2025-03-11 |
| CA3253292A1 (en) | 2025-07-04 |
| DE102022117264A1 (de) | 2024-01-11 |
| AU2023305813A1 (en) | 2024-12-19 |
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