Common Mistakes To Avoid When Applying Dental Sintering Paste

When handling high-precision dental restorations such as crowns, bridges, inlays, and veneers, every stage of the procedure counts — and this includes using dental sintering paste in the right manner. Though most people take this aspect for granted, incorrect manipulation of sintering paste could lead to restoration failure, bad aesthetics, or even expensive remakes.

At HaHasmile, we are dedicated to dental lab and dentist supplies, such as dental sintering paste and a full line of dental milling burs. With more than a decade of manufacturing expertise behind us, we're here to assist you in achieving the optimum from your restorations by preventing some of the most prevalent application mistakes.

Let's take a closer look at these common mistakes — and how to prevent them.

1. Overapplication of Dental Sintering Paste

One of the most common mistakes dental technicians commit is applying too much dental sintering paste during glazing or porcelain procedure. Although it might seem that more paste will result in greater fixation, the truth is opposite of that.

Why it's a problem:

• Too much paste can disrupt the natural shape of the prosthesis.

• It can cause residue buildup upon sintering, which takes additional time to remove.

• It may adversely impact the external dyeing effect on the restoration margin.

Best practice: Apply no more than a soybean-sized amount per use. Our Dental Fix Firing Sintering Paste is available in a convenient syringe package that provides control over the amount used. Simply remove the cap, push the piston gently, and apply directly to the sintered pin or restoration surface.

2. Incorrect Layering or Placement

Another issue that leads to compromised restorations is the incorrect placement of the dental sintering paste. Whether it's crowns, bridges, veneers, or inlays, the way the paste is applied and the restoration is placed during sintering plays a huge role.

What can go wrong:

• Paste may come into contact with external dyeing pastes, causing discoloration.

• Restoration may not sit securely on the support pins.

• Uneven layering can lead to instability during sintering.

How to do it right:

• For crowns and bridges, apply the paste either on the sintered fixation pin or inside the crown before placing it on the pin.

• For veneers, inlays, and high inlays, apply the paste at the bottom of the restoration, then place it directly on the sintering plate.

• Make sure the paste only contacts the internal side of the prosthesis to avoid edge contamination.

Our translucent, non-toxic, odorless paste is designed specifically for this process, minimizing these risks when applied correctly.

3. Not Allowing Proper Drying Time

A frequently overlooked but critical step is letting the dental sintering paste dry properly before sintering. In a busy lab environment, it's tempting to move too quickly from application to firing, but this can backfire.

Risks of insufficient drying:

• Air bubbles or micro-explosions during firing

• Incomplete bonding between the paste and the restoration

• Paste residues hardening in unwanted areas

Pro tip: After application, allow the restoration to sit in a dry, dust-free area for a few minutes before inserting it into the sintering furnace. This small wait can make a significant difference in the quality of your final restoration.

4. Poor Storage Practices

Even the best dental sintering paste can fail if it's stored incorrectly. Paste that’s exposed to air, light, or vibration may dry out or lose its bonding properties.

What to avoid:

• Leaving the cap off

• Storing in high heat or humidity

• Exposure to light or continuous vibration

Storage tips:

• Always seal the cap tightly after use.

• Store the syringe in a cool, dry room away from sunlight.

• Keep it in a padded container if the lab has frequent equipment movement.

Why Choose HaHasmile for Your Dental Lab Needs?

We understand the importance of consistency and quality. That’s why our Dental Fix Firing Sintering Paste is trusted by thousands of labs in over 100 countries.

But we offer much more than just paste.

Our premium dental milling burs, including the X-Mill 500 Diamond Milling Burs and Zotion Lithium Disilicate Milling Burs, are made from tungsten carbide and feature diamond coatings, allowing for high precision and long-lasting durability — capable of milling up to 600 teeth per bur. We also provide metal milling burs compatible with top CAD/CAM systems like Roland, Sirona, VHF, and Imes-Icore.

By sourcing raw materials directly and managing our own production lines, we keep prices low — nearly 30% more affordable than buying through agents. Plus, we offer fast global delivery with IOSS tax-included shipping for EU customers and personalized service 24/7.

Whether you're looking for the best sintering paste or high-quality dental milling burs, HaHasmile is your go-to source for success in every case.