Your mouth is a complex ecosystem where pH levels play a crucial role in determining whether your teeth stay healthy or develop cavities. Understanding this balance is key to long-term oral health.
What is Oral pH?
The pH scale ranges from 0 to 14, with 7 being neutral. Your mouth naturally sits at around 7.0, but this can fluctuate throughout the day based on what you eat and drink. When pH drops below 5.5, your tooth enamel begins to demineralize.
Acidic drinks like soda (pH 2.5), sports drinks (pH 3.0), and even some fruit juices (pH 3.5) can drop your oral pH to dangerous levels for extended periods.
The Stephan Curve
When you eat or drink, your oral pH drops rapidly — sometimes to as low as 4.0. This acid attack can last 20-30 minutes. The Stephan Curve describes this pH drop and recovery cycle. Understanding it helps explain why snacking frequency matters more than quantity.
How to Maintain Healthy pH
Foods by pH Level
| Food/Drink | pH Level | Risk Level |
|---|---|---|
| Water | 7.0 | Safe |
| Milk | 6.7 | Safe |
| Coffee | 5.0 | Moderate |
| Orange Juice | 3.5 | High |
| Sports Drinks | 3.0 | High |
| Soda | 2.5 | Very High |
| Lemon Juice | 2.0 | Very High |
After drinking coffee or juice, swish with plain water for 30 seconds. This simple habit can significantly reduce acid exposure time and protect your enamel.
Balance Your Oral pH
OneOral's Treatment Rinse is formulated to help restore healthy pH levels after meals.
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