No abstract

No abstract

Using scanning electron microscopy, bacteria were found invading the epithelial wall of deep periodontal pockets in five out of eight cases. In one case, bacteria had reached the connective tissue. The following bacterial morphotypes were identified: cocci, short rods, filaments and spirochetes. A corncob-like formation with a few scattered spirochetes was found in one case between the junctional epithelial cells. Numerous cocci, rods and filaments were found in intercellular spaces of the epithelium in the lateral wall of the pocket and accumulating on the epithelial side of the basement lamina. Bacterial invasion of gingival tissue may have important pathogenic and therapeutic implications.

A new flap design for placement of implants into osseous defects has been described. The flap design can be used in anterior and posterior areas of human subjects. Photographs of representative cases are presented. Wound healing always occurred by primary intention and without evidence of immediate graft exfoliation. Interdental soft tissue craters did not develop, making it easier for patients to maintain optimal oral hygiene. This type of flap design can also be used without grafts in order to improve postoperative soft tissue contour.

No abstract