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Biomaterial– a substance other than medicament manufactured from natural or synthetic components which is intended to substitute organ or tissue or part.

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Presentation on theme: "Biomaterial– a substance other than medicament manufactured from natural or synthetic components which is intended to substitute organ or tissue or part."— Presentation transcript:

1 Biomaterial– a substance other than medicament manufactured from natural or synthetic components which is intended to substitute organ or tissue or part of it to take over its function. Źródło: Kay C Dee, David A. Puleo, Rena Bizios: An introduction to tissue-biomaterial interactions, John Wiley and Sons, New Jersey, 2002 BIOMATERIALS J. Dutkiewicz Institute of Metallurgy and Materials Science of the Polish Academy of Sciences

2 Biomaterials industry year ,7 mld $ Year ,7 mld $ Ceramics 2,8 % Ceramics 2,9 % Metals 44,5 % Metals 29,9 % Polymers 47,1 % Polymers 42,8 % Natural materials 5,7 % Materials Natural 6,3 % Composites 0,0 % Composites 18 %

3 Corrosion resistence w zależności in relation of tissue reaction for various materials Polarization resistence (Ω/cm 2) Biotolerance Neutral Stopy Ti Toxic Safe only for certain period Stal AISI 316L CoCrNiMo

4 Kość i zastąpienie kości

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10 steels Cr-Ni-Mo steels Cr-Ni-Mo alloys Co-Cr-Mo, Co-Ni-Cr-Mo, Co-Cr-Ni-Mo-Fe alloys Co-Cr-Mo, Co-Ni-Cr-Mo, Co-Cr-Ni-Mo-Fe Ti i jego stopy: Ti-6Al-4V, Ti-6Al-(4-9)Nb, Ti i jego stopy: Ti-6Al-4V, Ti-6Al-(4-9)Nb, Ti-6Al-(3-6)Nb-(1-6)Ta, Ti-12Mo-6Zr-2Fe, Ti-15Mo-3Nb, Ti-6Al-(3-6)Nb-(1-6)Ta, Ti-12Mo-6Zr-2Fe, Ti-15Mo-3Nb, Ti-15Mo-5Zr-3Al, Ti-Zr-4Nb-2Ta-0,2Pd, Ti-15Mo-5Zr-3Al, Ti-Zr-4Nb-2Ta-0,2Pd, Ti-15Sn-4Nb-2Ta-0,2Pd, Ti-13Nb-13Zr, Ti-15Sn-4Nb-2Ta-0,2Pd, Ti-13Nb-13Zr, Ni-Ti shape memory alloys Ni-Ti shape memory alloys alloys Nb i Ta alloys Nb i Ta Noble metals Au, Ag, Pd Noble metals Au, Ag, Pd Metallic Biomaterials in reconstruction surgery

11 Płytki szyjne Płytka ramienna blokowana Płytka rekonstrukcyjna blokowana Examles of application of titanium in surgery Mechanical poroperties of titanium

12 Examples of application of Ti6Al4V in surgery Śruby transpedikularne do stabilizacji kręgosłupa Implanty zastępujące kręgi Implanty zastępujące krążki międzykręgowe Cage

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14 X-ray image of back bone with avisible shift of vertebras, causing oppress on nerves and pain of the pacient.. Operation is based on stiffening of vertebras with titanium support constructiion regulating distance of vertebras eliminating oppression of nerves.

15 Dental Implants & Superstructures Coated / uncoated

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17 Nitinol NIckel-TItanium- at composition 50 :50 with a possible application of superelasticity in dental orthodontic medicine Predetermined Shape of matrix

18 Orthodontic Applications

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20 Stents

21 Monolitic ceramics base on Al 2 O 3 -Al 2 O 3 : bioneutral material minimal chemical changes in contact with tissue and organism fluids brittless and low toughness (improvement possible by additions of 1 m; ZrO2 [4]) Bioneutral ceramic materials In stomatological practice Typical bioceramic elements: alumina dental implants of cerasiv GmbH

22 Compomers "Dyract ® AP offers the restorative potential to fulfil most applications of traditional glass ionomer restorative and composite resins.. " cavities etch adhesive compomer placed setting

23 : bioglasses sodium-calcium (Na 2 O-CaO-SiO 2 -P 2 O 5 ) [8] sintered hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ) [9,10] -calcium phosphite(Ca 3 (PO 4 ) 2 ) [11] two phase ceramic hydroksyapatite-calcium phosphate crystalline oxyfluoroapatite (Ca 10 (PO 4 ) 6 (O,F 2 ) vollastonite (CaO. SiO 2 ) in a glass matrixMgO-CaO-SiO 2 [13] Due to a poor mechanical properties of hydroxyapatite, most popular are layers on ceramic or metallic substratres Bio-active ceramic materials

24 Apatite Ca 5 X(PO 4 ) 3 X = F, Cl, OH hexagonal, rod like crystals, Colour: colorless, sometimes yellow, blue, red shiny Rysa: biała Hardness : 5,0 – in Mohs scale density: 3,16 - 3,22 g cm -3

25 Root Canal Sealers Materials from cements to resins have been used Cytotoxic & tissue irritating potency: Zinc oxide – eugenol in longest use Epoxy resin based Sealers containing a small % of paraformaldehyde to kill bacteria & fix remaining pulp tissue. Biocompatible alternatives: 4)Calcium hydroxide based to promote tissue repair at the apex. 5)Mineral trioxide aggregate (MTA) biocompatible antiseptic non-soluble adhesive slow setting radiopaque dimensionally stable removable if required achieves a good seal


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