Dental Chisel, Periodontal, C36-37. Our Back-Action Periodontal Chisel is designed to remove bone adjacent to teeth without causing trauma. It is very effective on the distal of the last molars.  End blades are 3.5mm and 3.7mm  wide. Our store offers 8 different types of Periodontal Chisels  for removing and shaping bone structures. Product code:  C36-37 or CHC36-37