Principles of Osseous Resective Surgery

Question 1

Started notes at slide

Answer 1

42

Question 2

Objectives of Osseous Resection

Answer 2

-Reshape marginal bone ->alveolar process
-Create bony contours -> parallel gingival contours
Create cleans able gingival contours
-permits easier primary wound closer( better flap appro.)
-Crown lengthening (most common procedure

Question 3

reshape the marginal bone to resemble the

Answer 3

alveolar process undamaged by periodontal disease

Question 4

gingival behavior in Health

Answer 4

• biologic width
• normal gingival contours
• bone:hard tissue
• gingival tissue

Question 5

gingival tissue tends to

Answer 5

follow more fluid form

Question 6

the degree of scalloping is determined by

Answer 6

• cemento-enamel junctions (CEJ)
• the convexity of the teeth
• tooth position in alveolar bone

Question 7

gingiva will heal according tothe

Answer 7

same anatomic concepts as in health

Question 8

the gingivawill attempt to

Answer 8

re-establish the biologic width with shallow sulci

Question 9

Indications for Osseous Resection

Answer 9

• shallow infrabony defects (1-2 mm)
• incipient and shallow definite furcation invasions
• flat or reverse architecture, tori, exotoses and ledges
• bone contouring in conjucntion with root resection
• achieve primary closure of flaps by thinning bone (o.plasty) , not removing attached bone (ostectomy)

Question 10

contraindications for osseous resection

Answer 10

1. esthetic areas
2. isolated deep pockets
3. advanced periodontitis
4. presence of certain, local anatomic factors
5. pateint with high risk caries index
6. patient with a serious systemic condition

Question 11

contraindications for osseous resection factors of anatomics:

Answer 11

1. near the ascending ramus
2. near the external oblique
3. in close proximity to max sinus
4. adjacent to flat palate

Question 12

osseous resection surgery: technique , use basic flap approach with

Answer 12

1. local anesthesia
2. full thickness, apically positioned flaps
3. through tissue debridemnet

Question 13

osseous resection surgery: technique , osseous resection phase

Answer 13

1. vertical grooving
2. radicular blending
3. flattening interproximal bone
4. gradualizing marginal bone

Question 14

vertical grooving

Answer 14

• reduces the thickness of alveolar housing
• provides prominece to radicualr aspect of teeth
• provides continuity frominterproximal surface ontothe radicular surface

Question 15

radicular blending

Answer 15

• attempts to gradualize the bone over entire radicular surface
• provides a smooth surface for a good flap adaption

Question 16

flattening interproxiaml bone

Answer 16

• require removal of very sall amount of supporting bone

- indicated when interproximal bonelevels vary horizontally

Question 17

Gradualizing marginal bone minimal bone removal,

Answer 17

minimal bone removal, necessary to provide a sound, regular bas for gingival tissue to follow