9 COMMON MISTAKES BELOW 👇 1) Over-bleaching or using harsh whitening products They strip enamel, thin the tooth, and make it translucent (which actually looks darker/older over time). 2) Brushing too hard This wears enamel and causes gum recession — long teeth with exposed roots are one of the biggest age giveaways (it’s where the phrase “long in the tooth” comes from) 3) Ignoring gum health Inflamed, receding, or “puffy” gums can make even white teeth look unhealthy and aged. 4) Mouth breathin