The document discusses various types of plastic surgeries, including cosmetic, reconstructive, and craniofacial surgeries, along with materials used for implants such as silicone and cellulose. It highlights the properties of these materials, including biodurability, biocompatibility, and toxicology, while mentioning potential disadvantages like capsular contracture and infection. Additionally, the text notes applications of these materials in medical devices and drug delivery.

1. • PLASTIC SURGERY
Cosmetic or aesthetic
surgery
Reconstructive surgery
Craniofacial surgery
Hand surgery
Micro surgery
Treatment of burn

3. 1. Silicone
2. Dacron
3. Cellulose
4. PMMA
5. Polyurethanes
6. Hydrogels
7. Stainless steel
8. Titanium
9. Alumina
10. Hydroxyapatite
11. Collagen

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

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

13.  Density
 Polarity
 Chain branching
 Cross linking
 Chain length

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

17. -YADAV POOJA