3M Ketac Universal glass ionomer restorative
About once a year, I get an e-mail from a reader or podcast listener who bemoans resin composite and pines for a "tooth-colored amalgam." Well, I want a flying car and a tree that grows money. We all want things, but magic isn't real, so we are condemned to reality. This seems to be a common refrain though. We want to improve the esthetics of amalgam or make resin composite longer lasting and more forgiving. But glass ionomer often gets ignored completely.
I was a part of the problem for a huge portion of my career. I didn't place a glass ionomer for more than a decade. From my experience in dental school, I wasn't impressed. Esthetics were poor. Handling was a mess. But after getting to play with some of the new iterations of glass ionomer on the market, such as 3M Ketac Universal, I have reexamined my beliefs. I believe every restorative dentist should have a glass ionomer option. Maybe glass ionomers can become the tooth-colored, amalgam-like material we've all been dying to have.
One huge advantage to Ketac Universal is its suitability for use in small Class I and II restorations in permanent teeth, due to its compressive strength and surface hardness. What a paradigm shift! If the new universal glass ionomers are strong enough to survive and thrive in these occlusal situations, it opens up their applications.
In my opinion, glass ionomer restoratives have several great applications in dentistry today, including root decay, the cervical third of deep interproximal boxes, and primary tooth decay. Glass ionomer is also a great option for patients who have esthetic demands but are at high risk for caries. Plaque and bacteria love resin composite, promoting recurrent decay for patients with high caries risk. Glass ionomer restorations tend to be more resistant to plaque accumulation, and they have the potential to last longer than sloppy resin composite restorations in patients with high caries risk. Like all glass ionomers, Ketac Universal offers fluoride release, which contributes to its advantages in high caries risk situations.
Ketac Universal comes in either a familiar Aplicap or a mixable liquid and powder form. I demoed the Aplicaps, which require a triturator to mix, in my office. No conditioner is required for Ketac Universal, which saves a step. The Aplicap nozzle is well designed and allows for easy reach into deep areas.
Compared to previous iterations of glass ionomer, Ketac Universal's handling properties are much better. As with all glass ionomers, Ketac Universal can be bulk filled, which saves time. In fact, the entire process is designed to be a time-saver and can be done in four simple steps: Simply activate the Aplicap, mix it, place it in bulk, and then finish. The working time is one minute and 40 seconds, so you can get to adjusting and finishing quickly. With six available shades, Ketac Universal has great options for areas of esthetic concern.
If there is a downside to using the Aplicaps, it might be that you no longer have an activator, triturator, or Aplicap applicator in your office. You can always hit up eBay and get new ones. I use mine all the time now with several other materials as well.
3M Ketac Universal is a great option if you are looking to rekindle your relationship with glass ionomer. It is quick and easy to use, performs well, and fills a nice niche within restorative dentistry. Whether it's for the kiddos you see, your geriatric patients with root caries, or your teens and adults with high caries risk, there is a place for Ketac Universal somewhere in your practice. Hard-hit double to the gap for 3M!