Dental Materials | Elastomeric Impression Materials | BDS 2nd Year | Dr Ichita Joshi | One Shot
PW MedEd BDS
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Dental Materials | Elastomeric Impression Materials | BDS 2nd Year | Dr Ichita Joshi | One Shot
7 752 просмотра · Трансляция закончилась 5 месяцев назад
PW MedEd BDS
19,3 тыс. подписчиков
7 752 просмотра · Трансляция закончилась 5 месяцев назад
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BDS 2nd Year Dental Materials | Elastomeric Impression Materials | Most Wanted Series | Dr Ichita Joshi | One Shot
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Struggling with the chemistry of Silicones or the setting reaction of Polysulfides? We’ve got you covered. In this power-packed session of the Most Wanted Series, Dr. Ichita Joshi breaks down Elastomeric Impression Materials—one of the most high-yield topics in Dental Materials for BDS 2nd Year.
This "One Shot" video is designed to take you from the basics of synthetic rubbers to the complex nuances of addition and condensation polymerization, ensuring you're 100% exam-ready.
Timestamps :
00:05 – Introduction to elastomeric impression materials
00:48 – Why crowns fail: role of impression errors
02:07 – What will be covered: classification, chemistry, setting, properties, manipulation
03:03 – What is an impression and what are ideal requirements?
05:18 – Why elastomers over alginate? Clinical importance
06:41 – Classification: polysulfide, condensation silicone, addition silicone, polyether
07:48 – Polysulfide: introduction and personality of the material
09:23 – Polysulfide: composition, uses, setting reaction, by-product, properties
17:38 – Condensation silicone: composition, alcohol by-product, shrinkage
25:16 – Addition silicone (PVS/VPS): gold standard, properties and uses
27:20 – Addition silicone: composition, platinum catalyst, hydrogen gas release
32:41 – Addition silicone: sulfur inhibition and latex gloves point
36:26 – Polyether: hydrophilic but rigid, setting reaction and uses
48:38 – Manipulation: tray selection, adhesive, mixing, loading, seating, removal
57:36 – Clinical considerations, errors, disinfection, and recent advances including digital impressions
🎯 Why This Video?
High-Yield Content: Focused strictly on what gets asked in university exams.
Simplified Concepts: Dr. Ichita Joshi makes the "sticky" topic of elastomers easy to digest.
Visual Learning: Includes charts and tables for quick last-minute revision.
Note: These materials are the backbone of Prosthodontics and Crown & Bridge. Mastering them now will make your clinical years much smoother!
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