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DLE > Oral surgery > Flashcards

Oral surgery Flashcards

1
Q

Primary Maxillary space

A
  1. Canine Space
  2. CST
  3. Buccal Space
  4. Infratemporal space
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2
Q

Primary Mandibular Space

A
  1. Submental
  2. Sublingual
  3. Submandibular
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3
Q

Incision Canine space

A

Levator labii superioris alaque nasi mucle

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4
Q

Most dangerous space

A

Canine Space

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5
Q

hematogenous route canine space infection

A

CST

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6
Q

Anterior CST

A

Superior & Inferior Opthalmic Veins

Facial Vein

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7
Q

Posterior

Nerve

A

Pterygoid plexus
Emissary Veins
3,4 , V1, VI

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8
Q

important structure in buccal space

A
  1. Buccal fat pad
  2. Stensen’s duct
  3. Facial Vein
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9
Q

Infratemporal Space

most common muscle

A

Medial pterygoid

Trismus

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10
Q

intraoral drainage

extraoral drainage

A
  1. Sublingual

2. Submandibular (submaxillary)

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11
Q

most common fascial space infection

A

Vestibular space

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12
Q

unilateral swelling submental , submandibular, sublingual

A

Cellulitis / Phlegmon

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13
Q

sublingual infections

A

Glossoptosis

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14
Q

submandibular inf3ction

A

Breathing

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15
Q

infection from buccalmspace & mandibular 3rd molar w/ pericoronitis

A

Masseteric

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16
Q

infection from submandibular & sublingual spaces
Nerves:
Structures
Incision

A

Pterygomandibular space

  • Mental, lingual, IAn, Aurriculotemporal & Mylohyoid
  • Structures: Medial pterygoid. latrral pterygoid, Medial surface of ramus
  • Incision- Buccinator
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17
Q

dumb bell appearance

A

Temporalis space

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18
Q

What primary space common in trismus

A

Infratemporal Space

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19
Q

2nd space common in trismus

A

Masticator Space

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20
Q

masseteric, pterygomandibular, temporalis are taken as a group. Trismus is common

A

Masseteric space

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21
Q

Mangagement in trismus

A

Warm compress

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22
Q

infected mand. 3rd molar , tonsillar infections. pharyngitis, & parotitis
Hot potato voice

A

Lateral Pharyngeal Space

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23
Q

it extends from skull base superiorly to diaphragm inferiorly
Mediastinitis

A

Prevertebral Space

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24
Q

Lincoln High way of the neck

A

Visceral Vascular Space

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25
Q

First paransal sinus developed.
Lined w/
Adult max. AP, height, width
Volume

A

Maxillary Sinus ( Anthrum of Highmore)
Pseudostratified Squamous Epithelium Ciliated w/ goblet cell Schneidarian Membrane Cilia Microtubule
34 Ap, 33, 23
15

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26
Q

max. posterior teeth on cheek area
react normally to vitality test
discomfort in mucobuccalmfold during palpatiom
radiographic appearsnce of clouding & fluid levels

A

Acute Maxillary Sinus

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27
Q

it involves non-vital teeth

A

Odontogenic Sinusitis

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28
Q

causative agents of sinusitis

A

gm (+) - Strep. Pneumonie

gm(-)- Haemophilus Influenzae

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29
Q

Location of drainage of maxillary sinus

A

Middle Nasal Concha/ Middle Meatus

Opening. Hiatus Semilunaris

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30
Q

Alveolar bone opening

A

Osteum

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31
Q

gold standard in diagnostic salivary gland radiology that aids in detection of radioapaque stones (sialolith)

A

Sialography

32
Q

dilation of salivary duct “sausage-like” pattern to disgnose sialolith
common

A

Sialodochitis

Whartons Duct

33
Q

inflammation of acino- parenchyma of the gland

Sign pre-cancerous lesion

A

Sialodenitis

34
Q

total removal of cystec lesion without ruoturing thr cystic lining

A

Enucleation

35
Q

Indication for Enucleation

A
  1. Unilocular.
  2. Asymptomatic
  3. Less than 1-cm cystic lesion
36
Q

removal of 1-2mm of bone arounfpd the entire periphery

to prevent recurrence

A

Enucleation w/ Currettage

37
Q

Main tx of OKC

A

Curettage

38
Q

Indications Of Curettage

A

Multiple Radiolucencies

39
Q

creating a surgical window in the wall of the cyst& lining of cyst is left in situ

A

Marsupialization/ Partsch I technique / Decompression

40
Q

Indication of Partch 1 Technique / Marsupialization

A

Obj. - To spare vital structure from damage
Larger than 1-cm cystic lesion
Symptomatic

41
Q

combination of marsupialization with enucleation

A

Partsch II

42
Q

mainly indicated in Ameloblastoma & CEOT

A

Resection

43
Q

prevent cancer cell from dividiing

A

Radiotherapy

44
Q

2 wks after of radiotherapy

A

Mucositis

45
Q

3 wks after of Radiotherapy

A

Dysgeusia

46
Q

Most common infection in radiotheray

A

Candida Albicans

47
Q

Dose of radiotherapy

A

30-40 Gray

Maximum- 50

48
Q

Major adverse effect of radiation in oral cavity

A

Osteoradionecrosis - BV - mandible less vascularizesd

49
Q

injecting chemical that act by interfering the rapidly growing tumor cells & some of it applied IV

A

Chemotherapy

50
Q

common complicatiom of chemotherapy

A

Infections
Bleeding due to - thrombocytopenia decrease platelet
Bone Marrow Damage
Extract- 7-10 days before chemo

51
Q

most common fracture in the body

A

clavicle

52
Q

most common facia fracture

Repairing

A

Nasal

7-10 days

53
Q

used to reduce nasal fracture

A

Asche’s forceps

Walsham’s

54
Q

2nd most common facial fracture

A

Mandible

55
Q

Mandible fracture

A
  1. Condyle - 29.1%
  2. Angle- 24.5%- weakesr, common fracture odontectomy antero-fracture; Subcondylar neck
  3. Symphysis- 22%
  4. Body- 16%
  5. Mand. teeth- 3.1% - most common infections, open salivary contamination
  6. Ramus- 1.7%
  7. Coronoid- 1.3% - least
56
Q

Bilateral fracture of Symphysis of Mandible gives a

A

Bucket- Handle Appearance

57
Q

Most common sign mandibular fracture

A

Malocclusion

58
Q

most common sign of malignancy

A

Paresthesia

59
Q

muscle involved in displaced mandibular fracture

A

Lateral Pterygoid

60
Q

pathognomonic sign guerin sign, floating jaw

Instruments

A

Le Fort I

Rowe’s Disimpaction forceps

61
Q

pyramidal fracture
base
apex
Pathognomonic sign

A

Le Fort II
Dentition
Nasofrontal Suture
Battle’s Sign / Post- auricular ecchymosis

62
Q

dish face

CSF Rhinorrhea

A

Le Fort III / Transverse / Craniofacial Dysostosis

63
Q

Le fort III associate with Battle sign

A

Cranial Base Fracture

64
Q

with sign of Diplopia

A

Craniofacial fracture

65
Q

most common midface frature
Symptom:
Radiographic techniquw

A

Zygomatic Complex fracture
Infraorbital nerve paresthesia
Submentovertex view

66
Q

most severe

A

Le Fort III / Dish Face

67
Q

Le Fort Midface Fracture Radiographic technqiue

A

Waters View/ Occipitomental view

68
Q

best stool to diagnose midface fracture

A

CT scan

69
Q

blow in fracture

A

socket
ball
baseball
pingpong

70
Q

incomplete fracture, children fastest progession onfection due to osteid

A

Greenstick / Bamboo

71
Q

complete transection of the bone with minimal fragmentation

A

Simple ( closed fracture

72
Q

communicatiom with the external environment of the oral cavity
Most common to have infection

A

compound (open fracture)

73
Q

fractured bone is left on multiple segments. Most common blockage in breathing

A

Comminuted

Gun shot wound

74
Q

Debridement

A

0.9 NSS

75
Q

devitalization of the mandibular teeth

premolar

A

Subapical Osteotomy

76
Q

used for correction of mandibular prognathism

A

Vertical ramus osteotomy

77
Q

work-horse of the surgery
Class II skeletal open body (advancement)
Skeletal class II mandibular retrognathism
class II due to max. protrusion

A

Bilateral Sagittal split osteotomy

DLE (14 decks)

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