ADDITION SILICONE VS CONDENSATION SILICONE IN DENTISTRY
- Addition Silicone: Also known as vinyl polysiloxane (VPS), addition silicone is a type of rubber that polymerizes by the addition of a curing agent without the release of byproducts. This ensures a highly accurate and stable impression.
- Condensation Silicone Putty: This type of putty utilizes a condensation reaction during polymerization, releasing byproducts such as alcohol or gas. While effective, it may be prone to slight shrinkage over time.
- Addition Silicone: Exhibits minimal shrinkage upon setting, ensuring the final cast accurately reflects the patient’s oral anatomy.
- Condensation Silicone Putty: May experience slightly more shrinkage over time, potentially affecting the precision of the final cast.
- Addition Silicone: Possesses excellent tear strength, making it resilient to deformation during removal from the patient’s mouth.
- Condensation Silicone Putty: While generally robust, condensation silicone putty may be slightly more prone to tearing, especially in cases of deep undercuts.
- Addition Silicone: Recognized for its quick-setting properties, addition silicone offers a precise impression in a relatively short timeframe, contributing to enhanced patient comfort.
- Condensation Silicone Putty: Generally, condensation silicone putty requires a longer setting time compared to addition silicone. This can impact workflow efficiency but may be suitable for specific cases.
ACCURACY & DETAIL REPRODUCTION:
- Addition Silicone: Renowned for its exceptional accuracy and detail reproduction, addition silicone is often the preferred choice for intricate dental impressions, especially in restorative and prosthetic procedures.
- Condensation Silicone Putty: While capable of providing accurate impressions, condensation silicone putty may exhibit slightly less detail compared to addition silicone, making it more suitable for less intricate cases.