A study of four dogs  showed that the simple elevation of mucoperiosteal flaps
causes a postoperative ischemia for seven days before blood flow would return to baseline.
Ashley, in 1962, was the first to describe the full thickness mucoperiosteal flap
for closure of palatal fistula20.
After a 90-day period of healing, a crestal incision was performed on the hemimandible designed to be submitted to conventional loading, maintaining similar quantities of keratinized tissue on each side of the incision, and a mucoperiosteal flap
In the 3rd group patients "Osteon" was applied on a bone wound, outer cortex was applied with "Colla Guide" resorbable membrane to be subsequently covered with mucoperiosteal flap
fixed by vicril 3-0 interrupted suture (Ethicon, Jonhson & Johnson, USA).
Caption: Figure 2: A modified incision design was used, wherein the incision was given 1.5 mm apical to marginal gingival following the scalloped contour of marginal gingival from distal of 13 to distal of 23, the mucoperiosteal flap
was elevated; vertical osteotomy cuts were placed interdentally to a depth of 1 mm up to the entire length of the root followed by decortications of the labial plate
(c) Lifting of the mucoperiosteal flap
, a perforation of the cortical bone is visible, as well as tooth 37.
A crestal incision originating at the right maxillary canine and extending to the right maxillary second molar was made, and a full-thickness mucoperiosteal flap
Surgical removal of impacted mandibular third molar often involves trauma to the soft and hard tissues due to preparation and retraction of a mucoperiosteal flap
and removal of bone, which is frequently followed by oedema of varying degree, trismus (limited mouth opening)2, pain and at times delayed healing.3 Some researchers stated that the difficulty of removing an impacted mandibular third molar depends on its accessibility.
The lesion was surgically excised by using a crevicular incision from 11 to distal of 18 and a mucoperiosteal flap
As the mucoperiosteal flap
was elevated, the mental nerve was noted, as well as buccal expansion of the cortical plate adjacent to teeth numbers 19 and 20 (Figures 5, 6).
"Osteon" filled a bone wound, outer cortex being applied with "Colla Guide" resorbable membrane to be subsequently covered with mucoperiosteal flap
fixed by interrupted suture by means of vicril 3.0 (Ethicon, Jonhson & Johnson, USA).
Later, a crevicular incision was given to reflect the thick mucoperiosteal flap
. Since bone covering was thin, there was no need for cutting bone.