before treatment: there was a deep probing depth in distal area of upper left 2nd premolar
take out of the ill-fitted crown on the 1st molar to carry out the GTR procedures
after papillary preservation flap elevation through the palatal approach and thorough debridement of all granulation tissue around the bony defect, a crater-like bony defect was found.
remove the inflammatory granulation tissue inner site of the flap
root conditioning with 24% EDTA (PreGel) for 2 min.
after thorough washing out the PreGel with abundant distill water, Emdogain was applied all around the bony defect
then DFDBA was applied and packed in the defect
primary closure with 6-o nylon silk
10-day post-op, suture removal
6-month post-op, bone healing was sound and good, it was time to carry out prosthetic treatment
tooth preparation, provisional crowns fabrication
final prostheses set up 7-month post-op
2-year after GTR