Why Are Older People (Over 65) More Likely to Lose

Why are older people (over 65) more likely to lose teeth than to develop cavities?

A) Cavities are less common because the pits and fissures on teeth that bacteria can colonize wear down over time. However, older adults are more likely to develop periodontal disease that can lead to the loss of teeth.
B) Older adults never eat sugar, because of the risk of type 2 diabetes that increases with age. However, they are likely to develop periodontal disease, that can lead to the loss of teeth.
C) As adults age, the enamel layer on their teeth surfaces increases in strength, making it almost impossible for bacteria to cause decay. However, as the enamel thickens, the gums weaken, so teeth can fall out and be lost.
D) As adults age, their tooth enamel becomes less porous. This prevents bacteria from colonizing the teeth, preventing the development of decay. However, as people get older, their saliva becomes more acidic, and this causes periodontal disease.
E) The mouth normal microbiota changes over time. In children the predominant bacteria are those that cause tooth decay. However, in adults, the predominant bacteria are those that cause gum disease and tooth loss.

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