QUESTIONS EXPERT CERTIFIED 100
PERCENT CORRECT
⩥ What is the TNM classification for a patient with squamous cell
carcinoma of the tongue?
Answer: T2N1M0.
⩥ What does the presence of bleeding on probing indicate?
Answer: It is indicative of current inflammation.
⩥ Which muscle is classified as a muscle of mastication?
Answer: Temporalis.
⩥ What causes swelling beneath the eye from an abscessed maxillary
canine?
Answer: The infection has passed into the angular vein which has no
valves.
⩥ What percentage of natal teeth are supernumerary?
Answer: 10%.
,⩥ Which is NOT a symptom of hypercalcemia?
Answer: Anoxia.
⩥ What has the greatest effect on the mechanical properties of
composite resin?
Answer: Volume fraction of filler particles.
⩥ What is typical of multiple neurofibromatosis?
Answer: Café au lait spots on the skin.
⩥ What is the likely result after eliminating occlusal trauma?
Answer: Reduction in tooth mobility.
⩥ What orthodontic movement do Temporary Anchorage Devices
(TADS) most affect?
Answer: Intrusion.
⩥ Normal alveolar crest in adults under 30
Answer: The normal alveolar crest is 1-2mm apical to the
cementoenamel junction.
⩥ Disorder with bulbous crowns and obliterated pulp
,Answer: Dentinogenesis imperfecta presents with all permanent teeth
exhibiting bulbous crowns, cervical constriction, and obliterated pulp
canals and chambers.
⩥ Use of glass ionomer cements in composite restorations
Answer: Glass ionomer cements can be used as a base because they are
biocompatible.
⩥ Structure inferior to the mylohyoid muscle
Answer: The submandibular duct lies inferior to the mylohyoid muscle
at the level of the mandibular second molar.
⩥ Mean annual radiation dose for humans
Answer: The mean annual radiation dose equivalent for human
populations on earth is approximately 3 to 4 milli- (m) Sv.
⩥ Most likely metastasizing carcinoma
Answer: Squamous cell carcinoma is most likely to metastasize.
⩥ Classification of Lidocaine
Answer: Lidocaine (Xylocaine®) is chemically classified as an amide.
⩥ Mixed lesion causing tooth impaction
, Answer: A mixed lesion with a radiolucent rim and corticated border
causing impaction of a permanent tooth is most likely an adenomatoid
odontogenic tumour.
⩥ Drug effect reduced by CYP2D6 polymorphism
Answer: Codeine's effect is most likely reduced in a patient with genetic
polymorphism of CYP2D6.
⩥ Widest labial/buccal attached gingiva
Answer: The labial/buccal attached gingiva on permanent teeth is
normally widest at the maxillary premolars.
⩥ Mandibular growth comparison between sexes
Answer: Mandibular growth occurs two years earlier in boys than in
girls.
⩥ Antagonists for curare over-dosage
Answer: Anticholinesterases are classic antagonists for curare over-
dosage.
⩥ Management of separated file during endodontic treatment
Answer: The most appropriate management is to complete the root canal
filling and monitor at recall examination.