A checkup is recommended every six months for two reasons. The first reason is that routine dental cleanings and exams can identify early signs of decay, gum disease or other problems. Early detection allows for proper treatment, which avoids more serious issues down the road. The second reason is that teeth are not deteriorating all at once doesn't mean they're not Developing Problems! Even if a tooth isn't showing any outward signs of Decay or Damage, it may still need attention due to decay deep within the root structure. A dentist can determine exactly what needs to be done to correct any issues as soon as they arise to prevent them from getting Worse.