Pit and fissures (those grooves mostly on the chewing surfaces of teeth) are about 12.5% of the overall tooth surface but account for 88% of the caries (cavities) in children.
Source: Boksman L, Have Recent Advances in Adhesives and Materials Dictated a Change in Sealant Protocols?, Oral Health, October 2006, Vol 96, No 10, pg 69-78.
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)