Anesthetic buffering is sort of like Taylor Swift. Five years ago, I had never heard of it, but now, I can't go a few days without hearing something about it. So what is all of the fuss about? Well, she's tall and attractive, and her songs are pretty catchy. Oh, wait-I think this "Pearl" is supposed to be about the Anutra Medical local anesthetic buffering system. So, to get back on topic, what is buffering anesthetic all about? It's essentially basic chemistry: Lidocaine is way more acidic than the natural pH of the human body. By adding sodium bicarbonate to neutralize lidocaine's acidity, we accelerate and enhance its ability to produce numbness, making it faster and the results more profound. For the patient, this means a more comfortable injection. For the clinician, it means less waiting for anesthesia and more consistent, predictable effects. Many of our physician colleagues have been buffering anesthetic for a while. But over the past few years, much like Taylor Swift has infiltrated your radio, anesthetic buffering has infiltrated dentistry.
I had zero experience with local anesthetic buffering before Anutra Medical sent me their system. The system is simple. It starts with the Anutra Dispenser, which looks sort of like a small tower. Inside of that goes the Anutra Cassette. This is what mixes the lidocaine and sodium bicarbonate for optimal results. A large vial of 2% lidocaine with 1:100,000 epinephrine attaches to one side of the cassette, and a vial of sodium bicarbonate attaches to the other. Once attached and primed, the sodium bicarbonate vial is good for seven days, so one cassette will last for a week. The cassette slides inside the dispenser, and after priming, the setup is ready to deliver buffered anesthetic.
Since the lidocaine and sodium bicarbonate are mixed in the cassette, you must use a luer-lock syringe for Anutra's buffered local anesthetic. The Anutra Syringe looks similar to a traditional metal dental syringe, except it's single-use and does not have a carpule. The syringe twists onto the dispenser, and the buffered anesthetic solution is drawn directly into the syringe. One big advantage to this system is that you can draw up more than one carpule's worth. If you were planning to use a couple of carpules' worth of local anesthetic, you could simply draw up as much buffered anesthetic as you want and deliver the bolus all with one injection, instead of using multiple injections as you would with traditional carpules. For me, injecting with a plastic syringe felt slightly different from injecting with a metal syringe at first, but after a few injections, that difference became negligible.
I had pretty good results with buffered local anesthetic. With inferior alveolar blocks, my patients seemed to become numb more quickly, and the results seemed to be as profound or more so, compared to traditional anesthetics. But I will admit that there is a learning curve for both you and your staff when instituting buffered anesthetic. With the Anutra Medical local anesthetic buffering system, you will need to load a new cassette with fresh sodium bicarbonate weekly. It must be fully primed after loading and primed to a lower level daily. Obviously, there is a cost to this, and you will probably have to designate a staff member to be in charge of managing the Anutra system on a daily and weekly basis. You will also be locked into using Anutra Medical's disposable plastic syringes or any other luer-lock syringes, which can raise your disposable cost if you aren't an Anutra Medical Platinum member (Platinum members get needles and syringes free of charge).
I have yet to see any possibility of billing for additional codes when using buffered anesthetic. If you are a fee-for-service office, you could obviously raise your fees to account for this jump in costs. If you are a PPO office, you will have a harder time with this. Anutra Medical will tell you that you can recoup the extra expenses with shortened procedure times since you won't be waiting as long for anesthetic to kick in. I think you would have to jump all in and use the Anutra Medical system full-time to achieve that. Given all of this, I think buffered anesthetics can have a big impact on the dental practice. Just be willing to do the training, get past the learning curve, and jump in feet first! Sharp single to left field for Anutra Medical.
Jiffy Universal ceramic finishing system from Ultradent Products Inc.