These teeth usually have deep grooves and are very prone to decay. All the adult back teeth should receive sealants as they erupt to prevent them from decay. The last adult teeth to erupt are the 'twelve year molars', but around age seventeen, the wisdom teeth may erupt if they are present. Sealants last about three to seven years and are absolutely necessary to protect the integrity of your child's teeth into the teenage years. The last area of concern is your child's bite or occlusion.
Some devices can correct bite problems in one third the time.