normal and altered osseous forms

Question 1

normal osseous form

Answer 1

1) thin bony margins
2) vertical grooving
3) positive architecture
- follows the CEJ

Question 2

altered osseous form

Answer 2

1) thick bony margins
2) dehiscence
3) fenestration
4) reverse architecture
5) osseous defects

Question 3

cleft-like absence of the alveolar cortical plate

Answer 3

1) resulting in a denuded root surface

Question 4

fenestration

Answer 4

1) absence of bone over the facial or lingual surface of a root resulting in a circumscribed defect in the cortical plate

Question 5

three osseous walls

Answer 5

1) interproximal
2) facial and lingual

Question 6

intrabony crater

Answer 6

1) most common early defect
2) not readily apparent

Question 7

shallow osseous defects

Answer 7

1 )can be good for osseous resective surgery
2) larger defects need regenerative therapy

Question 8

diagnosis of osseous lesions

Answer 8

1) probing
2) sounding
3) radiographic evaluation

Question 9

furcation involvement

Answer 9

1) invasion of furca into the teeth by perio disease
2) mandibular molars most common

Question 10

classification

Answer 10

1) incipient
2) definite
3) through and through

Question 11

ledging

Answer 11

1) buttressing bone
2) body lays additional osseous support for compromised tooth
- its like an exostosis

Question 12

vertical or angular defects

Answer 12

1) oblique bone loss
2) based on number of walls

Question 13

osseous surgery objective

Answer 13

1) gingival osseous harmony
2) minimize pockets
3) facilitate maintenance
4) retain dentition

Question 14

SPT

Answer 14

1) consistency
2) minimal pocket depth
3) positive architecture

Question 15

SRP/ surgery

Answer 15

1) inconsistency
etc

Question 16

osseous resective surgery

Answer 16

1) restore the bone to health more in an apical direction
2) pocket reduction techniques
3) indications
- acceptable hygiene
- persistent inflammation
- osseous lesions or violation of biological width

Question 17

osteoplasty

Answer 17

1) bone reshaping to create a more normal form without removing supporting bone

Question 18

ostectomy

Answer 18

1) bone reshaping to create a more normal form when supporting bone is removed

Question 19

osseous resection steps

Answer 19

full thickness flap

1) facial and lingual thinning with osseous grooving (osteoplasty)
2) intrabony lesion correction
3) establishment of positive architecture
4) final refinement

Question 20

contraindications

Answer 20

1) medical history
2) aesthetic issues
3) root sensitivity and caries
4) extensive bone loss
5) patient desire
6) inadequate phase 1 therapy

Question 21

reversed architecture

Answer 21

1) tissue levels are more coronal than bone