Surgical extraction of teeth Flashcards Preview

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Flashcards in Surgical extraction of teeth Deck (16):
1

luxator

thinner working end
sharper blade

2

elavator

more rounded end
blade slightly more spoon shaped

3

cutting gingival attachment

use scalpel
move v.slowly

4

inserting luxator into periodontal ligament

move luxator down to the periodontal space
walk luxator around tooth - cut periodontal ligament + widen the gap
avoid holding instrument parallel to tooth - can slip onto alveolar bone

5

what to use to widen gap between tooth + gum

elavtor placed down at base of tooth
rotate at several points then move deeper

6

extraction

use extraction forceps
rotate and pull when at max point of rotation

7

extracting a tooth with 2 roots

transect the tooth at the furcation
make sure both sections move independant then remove

8

possible complications of extractions

root fragmentation
jaw bone necrosis
iatrogenic jaw fracture
oro-nasal fistula

9

envelope flap

no vertical release incision
for feline tooth resorption

10

vertical release incisions

1 incision for small tooth
2 incsions + oarger for larger tooth
2 incisions should be divergent

11

be aware not to cut into these

The neurovascular bundle in infraorbital foramen
neurovascular bundle exiting from the mental foramen - Avoid during vertical release incisions for mandibular premolar extractions

12

Tooth Resorption In Cats

One of the most common dental disease problems in cats
At least a third of adult cats have one or more lesions
Prevalence increases with age

13

pathogenesis of tooth resorption

Teeth attacked by Odontoclasts (similar to osteoclasts)
Odontoclasts adhere to surface of the root and form resorptive lacunae
Vascular granulation tissue fills lesion + may be replaced by bone-and cementum-like tissue

14

tooth resorption - treatment

Extraction = Currently the only accepted option
restorations have been done - unsuccessful
Medical therapy

15

tooth resorption in dogs

Often coincidental findings during dental radiography
extract if supra-gingival/communication of lesion with oral cavity
Leave in if only subgingival + no sign of pain/radiographic sign of inflammation

16

surgical extractions - step-by-step

plan flap
cut gingival attachment
perform release incisions - down to blood
lift flap - with elevator
Reflecting the flap to expose buccal jaw bone - gently
remove buccal alveolar bone plate - expose root
cut deeper grooves along the mesial and distal root outlines - not too deep - nasal cavity
put elevator/luxator in remaining peridontal ligament + rotate
remove with forceps
inspect root apex - check for fracture
smooth down bony spikes
close flap