Principles Of Oral Surgery

Question 1

What’s is Presurgical evaluation?

Answer 1

To ID and quantify any comorbiditybthat may have an impact on operative outcome

Question 2

Principles of oral surgery

Answer 2

Prevent pathogenic microbes from entering the body as well as spread of certain infectious disease from one to another.
Sterilization

Question 3

Basic Necessities

Answer 3

Visibility and assistance
Adequate access
Adequate light
Clean surgical field

Question 4

Def:
Sepsis
Antiseptic
Sterility
Sanitization

Answer 4

Sepsis: Breakdown of tissue by action of microbes and is usually accompanied by inflammation
Antiseptic: Substance that can prevent multiplication of organism capable of causing infection
Disinfectant: applied to inanimate objects
Sterility: Freedom from viable forms of MO
Sanitization: Reduction of number of viable organisms

Question 5

Methods of sterilization

Answer 5

Heat
Moist heat, dry heat

Chemical
Filteration

Question 6

Maintenance of Sterility

Answer 6

Disposable materials
Surgical field maintenance

Question 7

Preparation of patient

Answer 7

Disinfect skin around mouth
Mucosa
Cover pt with sterile drapes (3x 80cmx80cm)

Question 8

Preparation of Surgeon

Answer 8

Shoe covers
Cap covering hair
Surgical mask
Face shield

Question 9

Disinfectant materials

Answer 9

Iodoform
Chlorhexidine
Hexachlorophene

Question 10

Clean vs Sterile technique

Answer 10

Clean technique: Office based surgeries, clean dress long sleeved lab coat
Sterile technique: operating room

Question 11

Surgical incisions and flaps

Answer 11

1. Firm, continuous stroke
2. Constant contact with bone
3. Width: easy access, no tension and trauma
4. Base broader
5. Flap larger than bone defect
6. Reflect mucosa and periosteum together
7. Incision along gingival sulcus
8. Avoid excessive pulling, crushing or folding

Question 12

Structures to avoid

Answer 12

Mental n bundle
Palatal vessels from GP foramen
Incisive foramen
Infraorbital n
Lingual n
Submandibular duct
Parotid duct
Hypoglossal venous plexus
Buccal artery
Facial n and a and v

Question 13

Incisions principles

Answer 13

Sharp blade of proper size
Firm continuous strokes
Avoid cutting vital structures
Incise perpendicular to epithelial surface
Intra oral incisions should be properly placed

Question 14

Principles of flap design

Answer 14

Outlined by surgical incision
Carries own blood supply
Allows surgical access
Replaced in the original position
Can be maintained with sutures and is expected to heal

Question 15

Flap design is used to prevent:

Answer 15

Flap necrosis
Flap dehiscence
Flap tearing
Injury to local structures

Question 16

Types of flaps

Answer 16

Trapezoidal
Triangular
Envelope
Semilunar
Y shaped
X shaped

Question 17

Pedicle flap

Answer 17

Buccal flap
Oblique Buccal flap
Palatal
Pedicle bridge flap

Question 18

Tenets of Halsted principles of tissue handling

Answer 18

Gentle handling
Meticulous homeostasis
Preservation of blood supply
Strict aseptic technique
Minimum tension
Accurate tissue apposition
Obliteration of dead space

Question 19

Reflection of mucoperiosteum

Answer 19

From bone
Perio steal elevator in direct contact with bone
Gentle and steady
Scissors or surgical blades