Oral Surgery 2
Odontectomy PPT 1
COVERAGE
● Basic Principles
● Flap Designs
● Anesthesia Location
ODONTECTOMY
- is the surgical removal of an
impacted tooth
SURGICAL FLAPS
4. The incision should be placed on
MAIN OBJECTIVES OF SURGICAL FLAP areas where vital structures
● To provide access to the would be avoided.
underlying structures to allow a
treatment procedure to be 5. Vertical releasing incisions should
carried out not extend into the mucobuccal
fold.
BASIC PRINCIPLES
1. The width of the flap must be of
adequate size so as to render the
operative field easily accessible
during manipulation, without
creating tissue tension or undue
trauma.
2. The base of the flap must be
broader than the free edge.
6. An incision should not cross an
underlying bony defect.
7. The termination of the vertical
incision at the gingival crest must
be at the mesial or distal line
3. The incision must be carried out angle of the tooth.
with a firm, continuous stroke.
, Oral Surgery 2
Odontectomy PPT 1
● Must extend at least 1 tooth over
on each side of the area of
surgery
8. The vertical incision should be in
concavities between bony
eminences.
B. TRAPEZOIDAL FLAP
9. Incisions through epithelial ● Gingival sulcus
surfaces should be made ● incision with 2 vertical relaxing
perpendicular to the surface of incisions
the bone. ● Provides maximum access and
visibility
10. The periosteum should be ● Lower risk of hemorrhage
reflected as an integral part of ● More difficult to suture
the flap. ● With risk of exposure of root
surface
BASIC FLAP DESIGNS
1. Semilunar
2. Trapezoidal
3. Triangular
4. Envelope
5. Modified trapezoidal
6. Y or Double-Y incision
7. Pedicle flap
A. SEMILUNAR FLAP
● Allows easy reflection and quick C. TRIANGULAR FLAP
access ● Gingival sulcus incision with 1
● Does not provide exposure for vertical relaxing incisions
full evaluation of the root surface ● Provides less access and visibility
● Causes more hemorrhage &
delayed healing
● At least 0.5cm from the gingival
margin
Odontectomy PPT 1
COVERAGE
● Basic Principles
● Flap Designs
● Anesthesia Location
ODONTECTOMY
- is the surgical removal of an
impacted tooth
SURGICAL FLAPS
4. The incision should be placed on
MAIN OBJECTIVES OF SURGICAL FLAP areas where vital structures
● To provide access to the would be avoided.
underlying structures to allow a
treatment procedure to be 5. Vertical releasing incisions should
carried out not extend into the mucobuccal
fold.
BASIC PRINCIPLES
1. The width of the flap must be of
adequate size so as to render the
operative field easily accessible
during manipulation, without
creating tissue tension or undue
trauma.
2. The base of the flap must be
broader than the free edge.
6. An incision should not cross an
underlying bony defect.
7. The termination of the vertical
incision at the gingival crest must
be at the mesial or distal line
3. The incision must be carried out angle of the tooth.
with a firm, continuous stroke.
, Oral Surgery 2
Odontectomy PPT 1
● Must extend at least 1 tooth over
on each side of the area of
surgery
8. The vertical incision should be in
concavities between bony
eminences.
B. TRAPEZOIDAL FLAP
9. Incisions through epithelial ● Gingival sulcus
surfaces should be made ● incision with 2 vertical relaxing
perpendicular to the surface of incisions
the bone. ● Provides maximum access and
visibility
10. The periosteum should be ● Lower risk of hemorrhage
reflected as an integral part of ● More difficult to suture
the flap. ● With risk of exposure of root
surface
BASIC FLAP DESIGNS
1. Semilunar
2. Trapezoidal
3. Triangular
4. Envelope
5. Modified trapezoidal
6. Y or Double-Y incision
7. Pedicle flap
A. SEMILUNAR FLAP
● Allows easy reflection and quick C. TRIANGULAR FLAP
access ● Gingival sulcus incision with 1
● Does not provide exposure for vertical relaxing incisions
full evaluation of the root surface ● Provides less access and visibility
● Causes more hemorrhage &
delayed healing
● At least 0.5cm from the gingival
margin
