Periodontal Regeneration of Upper Premolar with intrabony defect

Buccal aspect of a upper premolar

with a 9‐mm pocket depth on the mesial

surface

Buccal aspect of a upper premolar

with a 7‐mm pocket depth on the distal

surface

The radiograph taken at baseline shows a very deep intrabony defect on the mesial and distal surface of tooth 14

The intrabony defect was accessed with a modified

papilla preservation flap

Palatal aspect of the intrabony defect after the elevation of the flap

Primary closure with internal mattress sutures

Buccal aspect of the wound after 1 week

After 1 year, the interdental papilla is completely

preserved

The radiograph taken after 1 year shows that the intrabony defect has reduced

Buccal aspect of the wound after 9 years

The radiograph taken after 9 years shows that the intrabony defect has healed completely