Wisdom Tooth

Even when an impacted wisdom tooth itself does not hurt, the large molar right in front of it can be damaged first. A systematic review analyzing 13 studies and 13,788 people reports the prevalence of distal-surface decay in the second molar next to an impacted lower third molar at 29.89%, and a mesioangular impaction raises that risk about 11.22 times. The problem is that this decay begins below the gum and is already deep by the time it is found. Yeonhap Dental Clinic in Gwonseon-gu, Suwon, judges whether to extract according to the impaction type, and for a tooth whose margin has already become deep, measures the crown-to-root ratio and chooses between crown lengthening and DME (distal margin elevation).