A-Silicones Collection: Heavy Body Silicones, Light Body Silicones, Impression Materials

In dentistry, an impression material plays a pivotal role in recording the impressions from a patient’s mouth and the final delivery of dental prosthesis and other dental appliances. This material A-Silicones impression material or Addition silicones impression material are known for their precision, excellent detailed reproduction and dimensional accuracy, making impression-taking easy in prosthodontics and restorative dentistry, thus making them indispensable for creating accurate impressions.

What is A-Silicone Impression Material?

Addition Silicones impression materials or A-Silicones also known as second-generation silicones/ polyvinylsiloxanes were introduced in the early 1980’s. In the vulcanisation process, the polymer formed is triggered by the addition of a catalyst. These materials consist of polyvinyl siloxane polymer chains having terminal vinyl groups that are cross-linked by silanol (base paste) in the presence of a platinum catalyst (catalyst paste).

These materials have superior dimensional stability as compared to the condensation polysulfides, and do not release any by-products during curing, also the impression techniques are the same for both A-silicones and C-silicones. A-Silicones impression materials are hydrophobic and require a dry field during impressions

Types of Addition Silicones Impression Material:

Putty Silicone:

Putty silicones are high-viscosity impression materials; their main role is to provide the bulk fill mainly used as primary tray material due to its thick consistency to provide firm support to the other materials and have adequate tear resistance. A- Silicone putty types of putty dental impression materials are available in jars i.e. base and catalyst. These materials are widely used in fixed prosthodontics due to its high viscosity. The use of light body and putty material enables accurate putty dental impressions.

Avue gum putty material is a high-viscosity material that is widely used in dentistry and accepted by dentists making it ideal for bulk-filling trays and recording precise impressions.

Light Body Silicones:

Light-body silicones or a-silicone putty also known as wash materials have usually low viscosity when compared with putty silicone materials. These materials exhibit great properties like better fluidity, and hydrophilic. Available in two types i.e. normal & fast set. These materials are used to capture fine details and accurate impressions, either applied directly on the surface or with the help of a dispenser due to its low viscosity. Light body materials used along with putty silicones record the finest details.

Avue Gum Light Body is designed for superior accuracy and fine details of the prepared teeth or surrounding oral structures.

Medium Body Silicones: medium body silicones are also known as mono-phrase material or single viscosity materials, techniques used for denture work, crown and bridge work. These materials maintain a balance between light-body and heavy-body silicones having intermediate consistency. They provide a solid foundation for the detailed work while maintaining the integrity and stability of the tray.

Avue gum mono offers intermediate consistency and flow for accurate impressions of dental arches.

Heavy Body Silicones:

Heavy body silicone-based impression materials or heavy body silicones are used in the impressions of teeth and surrounding tissues offer medium viscosity and are designed to provide rigid impression materials that can resist deformities. These materials can achieve micron-level detail reproduction and are highly hydrophilic.

Avue gum heavy is a rigid and stable silicone-based impression material with medium viscosity, which makes it ideal for supporting light body silicones and for tray loading for detailed margins.

Benefits of using A-Silicones:

• A-silicones impression materials are the most dimensionally stable impression materials, as they create no by-product when set; another advantage is having less shrinkage which helps practitioners or technicians to pour more than one model on the same impression, highly acceptable by patients as they do not have unpleasant smell or taste, setting time of A-silicones are shorter when compared with C-Silicones, allows to set quickly patient’s mouth. 

• Another advantage is the thixotropic behaviour i.e. the tendency to become more fluid when applied pressure. 

• As these are less dense materials, they can easily flow in the gingival sulcus areas. In addition, silicones offer precise impressions with fine details as compared to other materials. 

• All these qualities make them the preferred choice of dentists and contribute to successful treatment outcomes.

Applications in Dentistry:

A-silicones impression materials are widely accepted materials and can be used in various applications.

Addition silicone materials are suitable for crown impressions, dental bridges, fixed and removable prosthesis dental impressions, various orthodontic models and in the fabrication of orthodontic appliances like aligners, other appliances like mouth guards, and bleaching trays.

How to Use Addition Silicone Impression Material?

Addition silicones can either be used as a one-stage or two-stage paste-to-paste technique.

• One stage impressions: in this step, either a heavy body a-silicone or a-silicone putty is loaded onto the tray, and after that light body silicone or wash is placed over it or directly on the desired area or both, again the impression tray is placed back in the patient’s mouth to set.

• Two-stage impression: in this technique putty dental impression is recorded first, after setting and trimming, relining done with the thin layer of wash material

Why buy Silicone Impression Material online from Dental Avenue:

Dental Avenue offers a wide variety of dental products and materials known for their superior quality and reliability. Trusted products like Avue gum putty, mono, heavy and light body and DMG Honigum offer great comfort to dentists for clinical outcomes and patient satisfaction, one can choose a comprehensive range of other dental materials at competitive prices.

FAQ’s:

Q. How long does it take for addition silicones to set?

A. It varies from the manufacturer’s guidelines and usually takes around 3-5mins according to their properties like fast set and normal set.

Q. How does addition silicone differ from condensation silicones?

A. condensation silicone forms from a condensation chemical reaction while addition silicone forms from an addition chemical reaction.

Q. What is the advantage of A-silicone impression material?

A. Addition silicones offer great dimensional stability, are well tolerated by patients and have high accuracy thus making them ideal for detailed dental impressions.

Q. How should addition silicone impression materials should be stored?

A. it should be stored away from direct sunlight, in a cool, dry place to prevent the difference in setting time.