Fact check: Do some people never get cavities?

1. Summary of the results

Yes, some people never get cavities, though this is extremely rare. The research reveals that genetic factors play a significant role in determining cavity susceptibility ^{[1] [2]}. People who never develop cavities typically possess genetic advantages such as thicker tooth enamel, higher saliva production, and a stronger immune response to cavity-causing bacteria ^[1].

However, the statistical reality shows that nearly 90% of adults ages 20-64 have experienced tooth decay ^[3], indicating that being cavity-free throughout life affects only a small minority of the population. The development of dental caries is multifactorial, involving both genetic and environmental factors ^[4], including oral hygiene practices, diet, fluoride exposure, and socioeconomic status ^{[5] [6]}.

2. Missing context/alternative viewpoints

The original question lacks important context about the rarity of this phenomenon. While some people never get cavities, the overwhelming majority of adults will experience tooth decay at some point ^[3].

The analyses reveal several critical factors not mentioned in the original question:

• Dietary influence: A diet low in sugar and high in fruits, vegetables, and whole grains can significantly prevent dental caries ^[7]
• Socioeconomic factors: These play a substantial role in cavity development risk ^[6]
• Various dietary trends can impact oral health differently, from ketogenic to Mediterranean diets ^[8]
• Environmental factors work alongside genetics to determine overall cavity risk ^[4]

The question also doesn't address that even those with genetic advantages still need to maintain proper oral hygiene and dietary habits to remain cavity-free.

3. Potential misinformation/bias in the original statement

The original question itself is neutral and doesn't contain misinformation. However, it could potentially lead to misleading conclusions if people assume that cavity-free individuals represent a significant portion of the population, when statistics show this affects less than 10% of adults ^[3].

There's also a risk that people might interpret this information to mean that genetics alone determine cavity risk, when the research clearly shows that dental caries involves complex interactions between genetic predisposition and environmental factors including diet, oral hygiene, and fluoride exposure ^{[5] [4]}. This could lead some individuals to neglect proper dental care if they believe they're genetically protected.