A primary (baby) tooth is considered submerged if its marginal ridge (height at each end of the tooth) is more than 0.5mm below the intact marginal ridge of normal adjacent teeth. Studies show the prevalence of this condition in children ranges from 1.3 to 38.5%.
Source: Sherman M, Clinical Management of Submerged Primary Molars, Ontario Dentist, December 2007, Vol 84, No 10, pg 16-20.
Hans Skariah, B.Sc., DMD
Promenade Court Dental Health Group in Mississauga
2233 Hurontario St., Mississauga, ON, Canada
(1/2 km north of the QEW in the Dome Building)