The Dahl Principle is a technique taught in the UK but not widely understood around the world. There certainly are studies and research,1 but arguably there is not much in the way of protocols or how or even when to use it.
So what exactly is the Dahl Principle? It is a way of treating localized anterior tooth wear before posterior wear begins to open the vertical, without having to treat the back teeth. Think of it as a non-invasive preventative treatment that can keep patients from developing full-mouth wear or needing a rehab when used in the right situation. I also see it as a way of protecting anterior guidance and function.
I am aware the Dahl Principle is often viewed as a slightly left field way of treating wear. Some people simply don’t believe it. But why? I find this amazing because I use it in my practice nearly every day and have for more than 25 years. I often think “how can other dentists practice without it?” The truth is, many manage perfectly fine, but many others just don’t treat wear. That’s because traditional options tend to be expensive, which can be a barrier for patients.