Previous studies have suggested a remaining dentine thickness of 2 mm for protection of the pulp,17 others suggest 1 mm18 but a minimum of 0.5 mm is now accepted.
What is the significance of remaining dentin thickness?
The importance of remaining dentin thickness (RDT) in maintaining the vitality of the tooth following tooth preparation has long been recognized. Stanley 17 reported that a 2mm of RDT is necessary to protect the pulp.
What is thickness of dentin?
The mean values of dentin thickness observed for first molars were 2430 mm (buccal), 1.869 mm (lingual), 1.655 mm (mesial) and 1.664 mm (distal). For second molars the dentin thickness presented 3.006 mm (buccal), 2730 mm (lingual), 2130 mm (mesial) and 2192 mm (distal).
