Dental implant refers to the implantation of an implant similar to the root of the tooth in the missing tooth area to support、Restoration of missing teeth in retaining upper denture.
Bone grafting is a surgical method of grafting autologous bone or synthetic bone to form normal alveolar bone in patients with insufficient bone mass during implant surgery..
An implant overdenture is an implant2~6A method of installing a denture with an implant.,Relieve the burden of full mouth implant,A device to improve the inconvenience of existing denture.
Cells and fat are the main causes of rejection in the same bone.,The processing of the same bone must first pass.-80℃of low temperature refrigeration,A series of decellularized degreasing processes,Maximum removal of components that may cause rejection,and then through the cobalt-60ray sterilization.Due to individual differences or patients with underlying diseases,It is recommended to use immunosuppressants when using homologous bone.,or before use,Soak the conspecific bone in saline with antibiotics,can greatly slow down the occurrence of similar phenomena.Different bone graft sites at the same time、How much bone graft,The patient's own underlying disease is a relevant factor.,Need to be treated specifically in use.
Decalcified bone refers to the same bone implant material formed by removing part or all of the alkaline calcium phosphate from the same bone material with acidic substances..Naturally occurring osteogenic factors in bone matrix after decalcificationBMPand collagen fiber exposure,Therefore, it is easy to adsorb and directly act on mesenchymal cells accumulated from the recipient tissue fluid after implantation.(Differentiating cells in vivo),to transform it into osteoblasts,which in turn secretes bone matrix on its surface,Formation of new bone.Therefore, the osteogenesis after the implantation of demineralization bone not only has the receptor both osteoblasts to climb、Conduction into bone at both contact surfaces,and stimulates mesenchymal cells to become bone in their,is the full range of osteogenesis,Therefore, new bone is formed faster than non-demineralized bone.,Research data show that,Its bone repair time is shorter than the latter.3-4Week,This is very beneficial to the patient..
Artificial bone is usually made of synthetic materials(SuchβCalcium phosphate、hydroxyapatite、calcium sulfate、biological collagen, etc)made of bone graft material,Similar to human bone in three-dimensional spatial structure.The advantage is that the preparation method is controllable.,Rich sources,Can be mass production,The disadvantage is that it can only be used as a scaffold for bone conduction,Biological information without natural materials,Cell interaction is not ideal,Poor mechanical support.
Allogeneic bone is a clinically recognized bone graft material second only to autogenous bone..Autogenous bone grafting is the gold standard for bone grafting,With no rejection、good activity、advantages such as fast healing,But patients often have to bear the pain and risk of another bone removal surgery.,It also prolongs the operation time and increases the chance of postoperative infection.,Increased length of stay and cost,In addition, bone removal will leave various complications..When the patient is too young or too old,And when the required bone material is large or large, it is impossible to rely on autologous bone to meet.Allogeneic bone has good biocompatibility and three-dimensional pore structure equivalent to autogenous bone,Contains to promote bone healingBMP(bone morphogenetic protein),source is richer than autologous bone,Is the clinical dosage of allogeneic tissue second only to blood transfusion.
Allogeneic bone is also known as allogeneic bone in clinical practice.,The same species means that all species belong to people.,Allogeneic refers to different individuals.Allogeneic bone is bone taken from a volunteer donor,usually undergo rigorous decellularisation、degreasing,Disinfection and sterilization,The bone is then preserved using cryogenic freezing or cryogenic freeze-drying techniques.,Is a more common bone graft material,Depending on the site of the allogeneic bone、Size and shape, etc.,Used in different bone graft surgeries.