Bhatia’s Dentogist | MCQs in Oral Surgery: Fascial Spaces & Infections

Test your knowledge and master the key concepts for dental exams with this focused MCQ guide.

Bhatia’s Dentogist | MCQs in Oral Surgery
Fascial Spaces & Infections

Part 2: Oral and Maxillofacial Surgery

Bhatia’s Dentogist: MCQs in Dentistry
Part 2 : Oral and Maxillofacial Surgery ( Fascial Spaces and Infections )

FASCIAL SPACES AND INFECTIONS

Occupational cancer involve following organs Except?
A. Lung
B. Breast
C. Bladder
D. Liver
Life cycle of filarial is?
A. Cyclodevelopmental
B. Cyclopropagative
C. Propagative
D. Transovarian
Adjuvant used in DPT vaccine?
A. Zinc
B. Aluminium
C. Copper
D. Magnesium
In India, the cause for maximum maternal mortality is
A. Anemia
B. Hemorrhage
C. Abortion
D. Sepsis
In a national water supply and sanitation programme a problem village is defined as all except:
A. Distance of safe water in greater than 1.6 km
B. Water is exposed to the risk of cholera
C. Water source has excess iron and heavy metals
D. Water infested with Guinea worms
Which of the following is an example of disability limitation?
A. Reducing occurance of polio by immunization.
B. Arranging for schooling of child suffering from PRPP
C. Resting affected limbs in neutral position
D. Providing calipers for walking
Which of the following agent is of value in the post operative care of haemophilic patients?
A. Vitamin K
B. Munsell’s solution
C. Aminocaproic acid
D. Factor 8 cryoprecipitate
Which of the following agent is of value in the post operative care of haemophilic patients?
A. Vitamin K (AI 2009)
B. Munsell’s solution
C. Aminocaproic acid
D. Factor 8 cryoprecipitate
The trismus following a lower molar extraction after-4 weeks may be due to: (AI 2001)
A. Breakage of needle in pterygomandibular space
B. Hematoma of TMJ
C. Submasseteric space abscess
D. Root stump in the socket
Which of the following features is not associated with acute osteomyelitis of mandible: (AI 2004)
A. Severe pain
B. Purulent exudates
C. Paresthesia of lower lip
D. Radiographic evidence of bone destruction
The main causative organism in Ludwig Angina is:
A. Streptococcus viridans
B. Staphylococcus albus
C. Staphylococcus aureus
D. Streptococcus hemolyticus
The fascial spaces involved in ludwigs angina are: (AI 2004)
A. Unilateral –submandibular & sublingual spaces
B. Bilateral –submandibular & sublingual spaces
C. Unilateral-submandibular, sublingual & submental spaces
D. Bilateral –submandibular, sublingual & submental spaces
The recommended time gap between the radiation and surgery to avoid Osteoradionecrosis is? (PGI June 2008)
A. 4-6 weeks after radiotherapy
B. 6-12 months after radiotherapy
C. Immediately after radiotherapy
D. Any time during the course of radiotherapy
Trismus can result from the infection of which space? (PGI June 2008)
A. Submandibular Space
B. Sublingual Space
C. Submasseteric Space
D. Buccal Space
Drug which can cause the Osteonecrosis of the jaw is? (PGI June 2008)
A. Corticosteroids
B. Calcitonin
C. Bisphosphonate
D. None
Which of the following is not a content of Pterygomandibular space? (AIIMS Nov 2006)
A. Long buccal nerve
B. Nerve to medial pterygoid
C. Nerve to mylohyoid
D. Lingual nerve
Which of the following is not a feature of Hutchinson’s triad: (KCET 2007)
A. Gumma
B. Hypoplasia of incisors and molar
C. Eighth nerve deafness
D. Interstitial keratitis
Cavernous sinus thrombosis can occur due to spread of odontogenic infection via:
A. Tissue spaces (KCET 2007)
B. Lymphatic route
C. Haematogenous route
D. All of the above
Which of the following infection is the cause for multiple sites of osteomyelitis of the jaw:
A. Peritonsillar abscess (KCET 2007)
B. Local trauma
C. Haematogenous infection
D. Buccal space infection
Fascial spaces are filled by:
A. Loose connective tissue
B. Elastic fibres
C. Loose adipose tissue
D. Dead space
The characteristic features of infection of masticator space is:
A. Swelling
B. Discharging pus intraorally
C. Trismus
D. High grade fever
The infections of masticator space do not enter into neck because:
A. The fascia is tenaciously adherent to mylohyoid line
B. The fascia is firmly adherent to periosteum of lower border of mandible
C. Before it reaches the neck it follows path of least resistance to open extmorally or intraorally
D. Masticator space is not continuous with spaces in neck
The infection of masticator space can spread to (except):
A. Temporal pouches
B. Lateral pharyngeal space
C. Sublingual space
D. Submandibular space
Swellings of masticator space and lateral pharyngeal space are similar. The distinctive difference is that masticator space infection:
A. Is of dental origin
B. Is not pushed towards the midline
C. Is more diffuse and visible from outside
D. Has a tendency to spread to temporal pouches
Incision and drainage of masticator space should be attempted:
A. At region anterior to masseter muscle Intraorally from buccal sulcus
B. Extraorally in subangular region
C. From pterygomandibular raphe
Infections from mandibular 1st molar would travel to:
A. Submandibular space
B. Sublingual space
C. Masticator space
D. Digestric space
The major structures present in the submandibular space are:
A. Deep part of submandibular gland, branches of facial artery, lingual nerve
B. Superficial part of submandibular gland, branches of facial artery and lingual nerve
C. Superficial part of submandibular gland, branches of facial artery, mylohyoid nerve
D. Submandibular duct, lingual nerve and hypoglossal nerve
In Ludwig’s angina the classical sign is:
A. Tongue is raised and falls back causing respiratory embarrassment
B. That submandibular sublingual and submental spaces are involved though tongue may not be raised
C. That submandibular, sublingual and submental spaces are involved bilaterally
D. Board-like brawny induration of mandible with tongue falling back and causing respiratory embarrassment
In Ludwig’s angina the incision should be placed deep uptill:
A. Mylohyoid muscle
B. Anterior belly of digastric
C. Geniohyoid
D. Mucous membrane of floor of mouth
Infections of lateral pharyngeal space travel usually from:
A. Temporal pouches
B. Masticator space
C. Sublingual space
D. None of the above
Infections of lateral pharyngeal space are life threatening because they carry dangers of:
A. Thrombosis of IJV
B. Erosion of ICA
C. Oedema of larynx
D. All of the above
Infections from lateral pharyngeal space can transverse to:
A. Anterior mediastinum
B. Middle mediastinum
C. Posterior mediastinum
D. Only superior mediastinum
Infections from submandibular space and submental space usually transverse to:
A. Anterior mediastinum
B. Middle mediastinum
C. Posterior mediastinum
D. Only superior mediastinum
Infections which travel from masticator space to parotid space are very painful because:
A. Facial nerve is irritated
B. The capsule of parotid does not give way for the developing infection to spread
C. Auriculotemporal nerve is irritated by infection
D. None of the above
While giving a inferior alveolar nerve block, infection is transposed to:
A. Pterygopalatine fossa
B. Pterygomandibular space
C. Submandibular space
D. Masticator space
While giving posterior superior alveolar nerve block, infection may be instituted into:
A. Pterygomandibular space
B. Infratemporal fossa
C. Temporal pouches
D. Pterygopalatine fossa
A patient, presented with ophthalmoplegia and signs of meningitis after extraction of upper central incisor, could be diagnosed as due to:
A. Tumour of pituitary
B. Tuberculous meningitis
C. Cavernous sinus thrombosis
D. No relation
The diagnostic sign/s which Engelton characterised for cavernous sinus thrombosis is/are:
A. Known site of infection
B. Paresis of III, IV, VI nerves
C. Proptosis of eye and (B)
D. All of the above
Dissecting subperiosteal abscess develops:
A. Immediately after 3rd molar extraction on lingual side
B. Several weeks later and distant to site of 3rd molar extraction
C. In association of post extraction infection in buccal area of extracted 3rd molar
D. When extensive dissection is done while extracting an impacted tooth
An acute alveolar abscess should be treated with:
A. First antibiotics for three days and then incision and drainage
B. Incision and drainage with broad spectrum antibiotic
C. Broad spectrum antibiotics and analgesic
D. Antibiotics and proteolytic drugs as chymotrypsin
Osteomyelitis begins as an inflammation of:
A. Cortical bone
B. Periosteum
C. Medullary bone
D. Periosteum and inner cortex
Which of the following conditions are susceptible to osteomyelitis:
A. Paget’s disease
B. Fibrous dysplasia
C. Radiation
D. All of the above
Osteomyelitis is more common in:
A. Maxilla
B. Mandible
C. Zygoma
D. Nasal complex
Osteomyelitis is caused most commonly by:
A. Streptococcus
B. Staphylococcus
C. M. tuberculosis
D. E. coli
In osteomyelitis how much bone should have been destroyed before it manifests radiologically:
A. 10-12%
B. 15%
C. 30-60%
D. 80%
Moth eaten appearance so characteristically seen in radiographs of osteomyelitis is due to:
A. Presence of sequestrum
B. Enlargement of medullary spaces
C. Reduced medullary spaces
D. Narrowing of Volkmann’s canals
Treatment of chronic osteomyelitis consists of:
A. Culture sensitivity and prolonged antibiotic therapy
B. Culture sensitivity with antibiotic therapy and hyperbaric oxygen therapy
C. Sequesterectomy, surgical exploration and prolonged antibiotic therapy after culture sensitivity
D. Sequesterectomy, antibiotics after sensitivity and hydrocortisone therapy
Sancerisation as a surgical treatment for osteomyelitis connotes:
A. Complete removal of decayed bone with primary closure of wound
B. Trimming or excision of margins of necrotic bone overlying focus of osteomyelitis and allowing secondary healing
C. Creating a saucer shaped defect by excision of the defect with primary closure
D. None of the above
In treating osteomyelitis with hyperbaric oxygen:
A. 30% oxygen is used at 1 atm
B. 70% oxygen is used at 2 atm
C. 100% oxygen is used at 3 atm
D. 80% oxygen is used at 2 atm
A 40-year old patient presented with multiple extracral sinuses with yellowish discharge and with history of intermittent remission after anti- biotics treatment two months ago. The disease started after extraction of 2nd mandibular premolar. It is suggestive of:
A. Tubercular osteomyelitis
B. Actinomycosis
C. Subperiosteal Garre osteomyelitis
D. Dissecting subperiosteal abscess