This presentation covers some of the most common biomaterials used in plastic surgery.
It will cover Silicone , Hydrogels and cellulose in detail along with their properties and uses in the specific domain.
# I hope this is useful for you all :)
4. Derivatives of compounds with a polysiloxane base
Synthetic polymer
Supplied in the form of fluids,rubbers or resins
5. High binding energy
Heat and cold resistance
Weatherability
Moisture and steam resistance
Electrical insulation
Thermal conductivity
Transparency and coloring propeties
Physiologically inert
6. • Reconstructive surgery
Breast,scrotum,chin,
nose,cheek,calf,
buttocks
Substitutes of tissues
of all shapes and sizes
Used to make implants
or devices
7. • BIODURABILITY :
Strong stability in the body
PDMS is added to increase the biodurability of other
polymers such as polyurethanes
• BIOCOMPATIBILITY :
Intrinsically biocompatible due to their chemical stability
Also due to low surface energy
8. • TOXICOLOGY :
Are immunologically inert
Production of antibodies does not occur in the implant
recipient
• DISADVANTAGES OF SILICONE IMPLANTS :
Capsular contracture
Pain in the breast, testis
Infection
Leakage or rupture of implant
9. Water swollen polymeric
structures crosslinked together
◦ Cross-links produced through:
Chemical reaction to form covalent
bonds
Entanglement of polymers
Hydrogen bonding and van der Walls
forces
10.
11. Buttock implant
Biomaterial, coatings for medical devices,
contact lenses
◦ Biologically compatible
Drug delivery
◦ Degradable, swelling properties
Many other biological applications
◦ Develop human tissues
12. Cellulose (C6H10O5)n is a long-chain polysaccharide
carbohydrate, of beta-glucose.
It forms the primary structural component of plants
and is not digestible by humans
14. Very much stable in thermal condition
Shows thermal softening at 231-253 degree
centigrade
Thermosetting in nature
15. Low conductivity and high resistivity of electricity
Relative humidity also affects the electrical
resistivity
Fatigue and Tribological Properties:
Have good toughness,gloss,clarity ,
processability
Excellent stiffness,hardness and dielectric
properties
16. To stop bleeding after facelift
To prevent cosmetic defects in oncoplastic
breast surgery