By Carrie Cokely, CDT/TE

At first glance they look a lot alike.  If you look closer though, you will notice that they have been designed slightly different and indicated for two different types of restorations. This concept may be pretty basic to some but you never know when you will need to provide some guidance to a newly hired technician or a non-technician staff member who orders  implant components. Let’s explain the differences.

At Open Implants we provide two types of titanium bases. One type that is engaging that has a hex bottom to prevent the base from rotating and loosening the screw.  The other type has a circular interface that is non-engaging and is indicated for more than one unit and used for restoring bridges. It is important to select the proper type of titanium interface for optimal fit. If a hex interface is used for a bridge and one does not properly engage it can cause many issues for the patient including bone loss and implant failure.  

So why does this matter?  Let’s take a look at these parts side by side.  As you can see from the picture, the bottom of the engaging ti base is longer and locks into the implant. This was specifically designed for single units to help prevent rotation and create stability for the screw.

On the right you can see that the non-engaging screw is missing that hex. This has been specifically designed for bridges to help with any slight divergence between more than one implant. 

If both interfaces had the hex it would be impossible to get the ti-base to seat on both implants. Even with a surgical guide it is just about impossible to have both implants 100% parallel.

Another notable difference is the flat engaging spot on the body of the base near the platform, shown here inside the orange circle. This is designed to help anti rotation and orientation when cementing the titanium base to the crown. 

I hope this helped explain what the difference is between these two parts! This may seem very simple at first glance but understanding how something is designed with pictures for reference can always be a useful tool when sharing the information with others.  It will also help your staff choose the correct titanium bases for your implant restorations and be a better fit for the patient!

-> Learn more about Open Implants ti bases and watch a quick video.

?Tech Tips: A few things to consider when dealing with these types of parts:

  • Ordering
    • Write the part number down with the description. This will ensure the information can be verified by the person taking your order. Indicate whether the part will be non-engaging/engaging. 
  • Receiving
    • Verify that the parts you received are what you ordered. Create a receiving checklist to make it easier for your office staff. Segregate the different types to avoid them being put in the wrong place.
  • Storage
    • Keeping things organized is a must when dealing with implant components. To help avoid confusion make sure that everything is properly labeled and segregated into individual compartments. Check out my blog Get Organized! for more information on how to do this! 
  • Quality Control
    • Always do a fit check on the model BEFORE cementing! It will be a lot easier to identify if there is a problem before this step. I always recommend a check under a microscope to verify fit of the components to identify any issues at final QC.