Oral Surgery 02

57. What is a true cyst?

A non-inflammatory cyst

A pathological cavity enclosed in an epithelial lining, no communication to root canal (needs surgery)

An epithelial-lined cavity opens to and continuous with root canal (RCT/Apicect.)

A pseudocyst

58. What can you see in histopathological examination of a radicular cyst?

Keratin

Pus

Cholesterol crystals and inflammatory cells

Calcified materials

59. What are the treatment procedures for radicular cyst?

RCT with/without apicectomy if it’s small

Extraction and apical curretage

Enucleation for large cysts with or without apicectomy and retrograde filling

All of the above

60. What is a residual cyst?

A non- odontogenic cyst

A develomental cyst

An inflammatory cyst

A pseudocyst

61. What is a paradental cyst?

An odontogenic cyst which locates in between roots of vital teeth

Non-keratinised inflammatory cyst which locates distal to the mandibular third molar

A dermoid cyst

An eruption cyst of infant

62. Dentigerous cyst develops around:?

Root

Crown of unerupted tooth

Mandible

Gingiva

63. What is the clinical significant in Odontogenic Keratocyst?

Common among men

Aggressive behaviour with high recurrent rate

Commonly occur in anterior maxilla

Often involves with multiple cysts

64. How to treat odontogenic keratocyst?

Enucelation and curettage

Surgical ressection

Application of Carnoy's solution

All of the above

65. Which statements below about eruption cyst are true?

It's associated with erupting tooth

It's a soft tissue, bluish swelling over a crown of newly erupted tooth

Its histology is the same as dentigerous cyst

Its treatment is to excise or unroof the cyst lining

All of the above

66. What is the radiographic feature of calcifying odontogenic cyst?

Ill-defined radiolucency

Radiopaque along the margin of a radiolucency

Well-defined radiolucency containing varying amounts of radiopaque material (areas of calcification)

Ground glass appearance

67. Which cyst has got "heart-shape" radiolucency in nasopalatine canal?

Globulomaxillary cyst

Nasopalatine duct cyst

Nasolabial cyst

Radicular cyst

68. What type of cyst has got an empty cavity, no epithelial lining, commonly occurs in the mandible with a history of trauma?

Stafne's inclusion cyst

Aneurysmal bone cyst

Traumatic bone cyst or simple bone cyst or solitary bone cyst

Median mandibular cyst

69. What is the most common site for mucocele?

Upper lip

Lower lip

Tongue

Cheek

71. What is the likely diagnosis when you aspirate from a soft tissue swelling showing blood?

Traumatic bone cyst

Abscess

Blood vessel

Haemagioma, aneurysmal bone cyst or contamination

72. Which case the enucleation of cyst in applied?

Small cyst in the jaws

Large cysts near vital structures

Ameloblastoma with aggressive behaviour

Cystic fibrosis

73. Which case of cyst do you need to do marsupialization?

Mucocele

Traumatic bone cyst

Very large cyst involving vital structures and ranula

All of the above

74. How to diagnose an Oro-antral fistula?

Insert a large needle into fistula & take X-ray

Squeeze patient nose & ask to strongly blow to see air bubble (Valsava test)

Use the probe to explore the fistula

All of the above

75. Which of the following is NOT the modes of spread of infection?

Saliva

Lymphatic

Blood

Direct spread

76. Where can the infection spread from maxillary 2nd premolar spread to?

Maxillary sinus

Palatal space

Infratemporal space

Infraorbital space or buccal space

77. Which one of the following space that the infection from the mandibular 3rd molar will NOT spread to?

Pterygomandibular

Lateral pharyngeal

Submandibular and submasseteric spaces

Infratemporal space

80. In which case do you need to refer the patient to the hospital?

Localized infection

Extremely severe infections involving potential facial spaces

Palatal abscess

Canine space abscess

81. When aspirate a cystic lesion which shows cholesterol, what type of cyst might it be?

82. When aspirate a cyst-like lesion which shows blood, what type of lesion might it be?

Contamination, aneurysmal bone cyst or haemengioma

Lipoma

Mucoccel

Radicular cyst

83. When aspirate a cyst-like lesion which shows air, what type of lesion/structure might it be?

Traumatic bone cyst or solitary bone cyst

Aneurysmal bone cyst

Thyroglossal duct cyst

Eruption cyst

84. What does crepitus or egg-shell crackling on palpation of the jaw bone mean?

The cortical bone is hard

The cortical bone is thin

The cortical bone is fractured

The bone is completely resorbed

85. How do you perform pulp vitality tests?

Tap on the tooth

Use periodontal probe

Spray air on the tooth

Use cold spray, hot GP points, or electric pulp tester

86. What are the surgical options of jaw cysts?

Apply acid

Enucleation, marsupializaion, and local resection +/- reconstruction

Incision and drainage

Root canal canal treatment

87. Which flap design will you raise for surgical enucleation of a radicular cyst at the apeces of teeth #12 and #11 with ceramic crowns?

88. Which one of the following is the best method of marsupialization of large cysts?

Packing with gauze into the cystic cavity

Opening the cystic cavity with a plastic tube or sterilized urinary catheter

Packing with alveogyl

Covering the cystic cavity with resine sten

Packing the cystic cavity with gelfoam

89. Which one of the following is NOT the pedunculated lesion?

90. Which of the following is NOT the treatment of denture-induced hyperplasia?

Leave the denture out at night

Remade the denture

Laser surgery

Surgical excision

91. Which one of the soft tissue lesions which penetrate into underlying bone (cupping)?

Peripheral Giant Cell Granuloma

Central giant cell granulama

Focal fibrous hyperplasia

Drug induced gingival hyperplasia

92. What is Rhadomyoma?

Benign tumour of fat tissue

Benign tumour of striated, voluntary muscle

Malignant tumour of bone

Malignant tumour of salivary gland

95. Which one of the following drug does NOT cause gingival hyperplasia?

Nifedipine

Warfarin

Phenytoin (Dilantin*)

Cyclosporin

96. What is Compound Odontome?

Odongenic tumour characterized by the formation of calcified enamel & dentin in an abnormal arrangement

A bag of teeth

A variant type of ameloblastoma

A malignant tumour of the tooth

97. What is radiographic feature of fibrous dysplasia?

Unilocular radiolucency in the tooth apex

Multilocular readiolucency in angle of the mandible

Dense radiopaque in the maxillary sinus

Ground glass appearance in the maxilla and mandible

98. Which one of the following is NOT the surgical treatment of benign tumour of the jaw bones?

Excise/enucleate/curettage

Resect

Chemotherapy

Reconstruct

99. Which of the following is NOT the mode of spread of infection?

Haematologic

Lymphatic

Saliva

Direct spread

100. Where can the infection from maxillary 2nd premolar spread to?

101. Where can the infection from mandibular molars spread to?

102. Which one of the following space that the infection from the mandibular 3rd molar will NOT spread to?

103. Which teeth that infection can cause cavernous sinus thrombosis?

Maxillary 2nd molars

Maxillary 3rd molars

Infection of maxillary canines, 1st premolars, and mesiobuccal root of the 1st molar

Maxillary incisors

104. What is the complication of cavernous sinus thrombosis?

Airway obstruction

Venous thrombosis and cranial compression

Osteomyelitis

Cold abscess

106. What is the most important and first step to treat acute infection?

107. Why local anesthetic is not allowed to inject in the infected site?

Very painful

Not effective anesthesia

Causing needle tract infection

All of the above

108. How do you make incision on a fluctuant abscess?

Like normal incision, blade cut on the surface of pointed swelling

Use number 12 blade to cut below the pointed swelling

Use number 11 blade, upside down to open the pointed swelling

Use the large needle to aspirate

110. In which case do you need to refer the patient to the hospital?

111. Why compound antibiotic such as Amxocillin + Clavulanic acid is more effective than single antibiotic?

It inhibits penicillinase or Betalactamases and active against Staph. Aureus

It is more expensive than single antibiotic

It is made in developed country

It is active against anaerobe bacteria

112. The danger area of face where from infection can spread directly to cavernous sinus includes:

Oral Surgery 02

More Quizzes