Many individuals experience tooth sensitivity, a sharp, sudden pain triggered by hot, cold, or sweet foods and drinks. This discomfort stems from exposed dentin, the inner layer of the tooth. Dentin contains tiny tubules that lead to the tooth’s nerve. When these tubules are exposed, stimuli can reach the nerve, causing pain. Sensitivity can arise from enamel loss due to acidic drinks, teeth grinding, or even brushing too hard.
Thankfully, specialized toothpaste can offer relief for sensitive teeth. These toothpastes work by blocking the pain sensors or creating a protective barrier over the exposed tubules.
How sensitive toothpastes work
Here’s a closer look at the active ingredients commonly found in these toothpastes:
- Potassium Nitrate: This ingredient acts as a nerve calmer, effectively preventing the nerves from sending pain signals to the brain when triggered by something like cold or heat.
- Stannous Fluoride: This ingredient is a double threat. Fluoride strengthens tooth enamel while the stannous fluoride forms a protective shield over the sensitive dentin tubules, minimizing the transmission of pain signals.
- Strontium Chloride: While less common, strontium chloride can provide relief for sensitive teeth. However, its safety profile is still under scrutiny, making the other two ingredients more popular choices.
It’s important to note that these toothpastes don’t work instantly. It takes consistent use, typically twice a day for several weeks, to build up the protective layer and achieve noticeable improvement.
When to see a professional
While toothpaste can effectively manage sensitivity caused by exposed dentin, it’s crucial to address the root cause of the problem. If sensitivity persists despite using specialized toothpaste, it’s best to consult a dentist. They can assess the situation and recommend appropriate treatments, such as fluoride treatments, gum grafting, composite bonding, or even a root canal, depending on the underlying cause.