anatomical considerations in periodontal surgery

Question 1

submentalis space

Answer 1

1) below the mentalis
2) communicates below the mandible
- with the submandibular space
- nvm im confused

Question 2

blood supply

Answer 2

1) greater palatine
2) facial
3) lingual
4) mental
5) nasopalatine

Question 3

nerve innervation

Answer 3

1) greater palatine n
2) long buccal n
3) inferior alveolar n
4) lingual (BE CAREFUL DISTAL TO MAND 2nd and 3rd MOLAR)
5) nasopalatine
6) mental

*full thickness flap is safer than split (but only grafts can be done with split)

Question 4

osseous structure

Answer 4

1) may prevent total elimination of bony defects or establish attached gingiva or deepening the vestibule

Question 5

thin radicular bone

Answer 5

1)

Question 6

mentalis muscle

Answer 6

1) if it is very high, you cannot do a graft without perforating or entering the submentalis space

Question 7

free gingival graft

Answer 7

1) have to be split thickness

Question 8

prominent mental tubercle

Answer 8

1) intrabony defects can make it difficult to eliminate

Question 9

external oblique ridge

Answer 9

1) defect on second molar require lot of bone removal
2) external oblique prevents you from doing crown lengthening etc
- allot more time

Question 10

anterior border of ramus, temporal crest

Answer 10

1) three wall defects
- you would have to remove too much bone from this area (3rd molar, 2nd molar mandibular)
- no resection
- bone graft is better

Question 11

exostosis

Answer 11

1) hard to do perio surgery

Question 12

buccal space

Answer 12

1) facial artery
2) mandibular first molar
- be careful, no vertical releasing incisions
- crestal incision is safer

Question 13

mental foramen

Answer 13

1) area with inadequate attached gingiva
2) split thickness flaps are needed but high risk of violating mental nerve

Question 14

posterior lingual

Answer 14

1) tori
2) mylohyoid ridge
- intrabony defects

Question 15

retromolar region

Answer 15

1) distal to mandibular 3rd or 2nd molar
2) take finger and feel the bone
- keep incisions over bone

Question 16

maxilla

Answer 16

1) thin radicular bone
2) exostosis

Question 17

posterior facial

Answer 17

1) thin radicular bone
2) zygomaticoalveolar ridge
3) maxillary sinus
- never remove bone without seeing radiograph of sinus

Question 18

incisive foramen

Answer 18

1) can get paresthesia and bleeding from this area

Question 19

greater palatine

Answer 19

1) DO NOT SEVER THE NERVE OR ARTERY

Question 20

shape of the palatal vault

Answer 20

1) limit osseous contouring
2) effect incision location
3) effect graft procurement
4) effect risk of artery involvement

Question 21

CEJ to neurovascular bundle

Answer 21

1) 17 mm steep
12 average
7 shallow