In this file , give you a lot of information about the sorts of membrane in dental surgery and the other information so you can check it .

1. BARRIER MEMBRANES IN
REGENERATIVE PERIODONTAL AND
IMPLANT SURGERIES
Created by Taha Tameh

2. 1. PTFE
2. What are the properties of PTFE?
3. What is a Membrane ?
4. Barrier Membrane Classification
5. Membrane in Dentistry
6. Why Do We Want from the Medical Membrane ?
7. Process of Manufacturing Ptfe Membarne
8. Innovation
9. Conclusion
10. References
Index

3.  Fluoropolymer and thermoplastic
 It is synthetic fluoropolymer of tetrafluoroethylene
 Discovered by Dr.roy J.plunkett in Dupont Industry
 Commercial name is Teflon
 Ptfe creates by tetrafluoropolymer monomer
 The average melting point of PTFE is 325 to 335
PTFE
[(CF2-CF2)n]

4. • Very high working temperatures
• Non-stick characteristic(Hydrophobia)
• Low friction surface
• Very high resistance to chemicals and solvents
• Very high electrical resistance
• Resistance to weather and corrosion
• Inert
• Non-toxic
• Bio-compatible
What Are the Properties of Ptfe ?

5. • A barrier membrane is a device used in oral surgery and periodontal surgery to prevent epithelium, which
regenerates relatively quickly, from growing into an area in which another, more slowly growing tissue type, such as
bone, is desired.
What is a Membrane ?

6. Membrane in Dentistry
 Oral/periodontal surgical
 Sinus lift
 Augmentation defects
 GTR
 GBR
 Alveolar ridge and socket preservation following tooth loss or extraction

7. • To be barrier such as stiff dam
• Factor of space maintenance or making
• Infection preservation
• Wound healing
• Hemostasis
• Inflammation
• Proliferation
• Remodeling
why do we want from the medical membrane ?

8. • The choice between resorbable and nonresorbable membranes depends on factors such as the specific
clinical application, the duration of barrier function required, patient considerations, and the
preference of the clinician. The study you mentioned likely aimed to compare the effectiveness of these two
types of membranes in terms of wound-healing complications, and it found no statistically significant
difference between them based on the analyzed trials.
Resobable membrane
Eliminates the need for a second surgery, reduces the risk of infection associated with a secondary removal
procedure, and can simplify the overall treatment process.
Non-Resorbable Membrane
• Long-lasting structural support, especially in cases where an extended barrier function is needed.
Resorbable versus non-resorbable membrane

9. Barrier Membrane Classification

10. Casting Technique
1. Sodium benzoate was dissolved in the mixture of PTFE and ethylene glycol solution
2. The solutions were stirred vigorously at room temperature (23 ± 1 ) for a hours
3. Then, the obtained casting solution was stored at room temperature for at least12 hours to remove bubbles
4. To cast the flat sheet membrane, the solution was spread onto a flat glass plate by using glass rod
5. The glass plate was taped side by side to control the thickness of the PTFE flat sheet membrane
6. The exposed surface of the wet casted PTFE flat sheet membrane was left air-dried at room temperature
7. The dried PTFE flat sheet membrane was sintered in a furnace for 30 minutes at 385 .
8. The sintered PTFE flat sheet membrane was permitted to cool to room temperature
9. The PTFE flat sheet membrane was leached by immersing the membrane into a hot water bath at 70 for a hours to detach the
membrane from the glass plate
10. Finally, the resulting PTFE flat sheet membrane was then removed and being air-dried at room temperature.
Process of Manufacturing Ptfe
Membrane

11. • Front Bioeng Biotechnol. 2022; 10: 921576. Published online 2022 Jun 22. doi: 10.3389/fbioe.2022.921576
• https://en.wikipedia.org/wiki/Barrier_membrane
• Biomater Investig Dent. 2021; 8(1): 54–63. Published online 2021 May 20. doi: 10.1080/26415275.2021.1925556
• https://www.unicarebiomedical.com/dental-supplies/cytoflex_resorb.html
• https://www.researchgate.net/publication/326959295_Friction_predication_on_pin-to-
plate_interface_of_PTFE_material_and_steel?_tp=eyJjb250ZXh0Ijp7ImZpcnN0UGFnZSI6Il9kaXJlY3QiLCJwYWdlIjoiX2RpcmVjdCJ9fQ
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‫ایمپلنت‬ ‫و‬ ‫پریودنتال‬ ‫رژنراتیو‬ ‫های‬ ‫جراحی‬ ‫در‬ ‫کننده‬ ‫سد‬ ‫غشاها‬
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‫کننده‬ ‫سد‬ ‫غشاهای‬ ‫کاربرد‬ ‫بر‬ ‫متکی‬ ‫های‬ ‫تکنیک‬ ‫بستر‬ ‫وظهور‬ ‫تاریخچه‬
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‫پژوه‬ ‫رویان‬
1392
• Naung NY, Shehata E, Van Sickels JE. Resorbable Versus Nonresorbable Membranes: When and Why? Dent Clin North Am. 2019 Jul;63(3):419-431. doi:
10.1016/j.cden.2019.02.008. Epub 2019 Apr 12. PMID: 31097135.
•
References

12. Thanks for Your Attention