339+ quick-fire dental facts • tap a card to flip
A patient has mandibular nerve neuralgia with herpes zoster infection
within mandibular division of left trigeminal nerve. Patient has difficulty on
protrusion and on protrusion mandible deviates to left side. Which muscle is
most probably affected:
1) LP on left side
2) LP on right side
3) MP on left and LP on left
4) MP on right and LP on left
Safest site for intramuscular injection in case of children:
1) Vastus lateralis
2) Deltoid
3) Gluteus maximus
4) Ventrogluteal
The periodontal ligament contains immature elastic fibers (oxytalan fibers), but mature elastic fibers are not typically present.
Which of the following is not found in periodontal ligament?
1) Mature elastic fibres
2) Undifferentiated cells
3) Fibronectin
4) Myelinated nerve fibres
Glass bead sterilizers operate at a high temperature to sterilize small instruments rapidly.
Temperature of a glass bead sterilizer is
1). 475-525°f
2). 125-150°c
3). 425-475°c
4). 425-475°c
Myasthenia Gravis is an autoimmune disease where the body develops antibodies to its own acetylcholine receptors and destroys them. While acetylcholine release is normal, the lack of receptors causes slow, weak muscular contraction and quick fatigue.
In myasthenia gravis
1) There is lack of acetyl choline
2) Lack of acetyl choline receptors
3) There is isometric contraction
4) Muscles are rigid and tough
Periodontal probe:
A calibrated instrument marked in millimeters.
Used like a miniature ruler to measure intraoral structures such as sulcus depth, attachment levels, and distances.
Alone, it can measure vertical dimensions but may not give the most accurate functional height of the floor of the mouth.
Special tray:
Custom-made tray used in prosthodontics for impression making.
Helps record functional anatomy, including the floor of the mouth.
Alone, it provides a functional impression but lacks precise millimeter calibration.
Combination (periodontal probe + special tray):
The probe provides precise millimeter measurement.
The tray ensures functional accuracy by recording the mouth floor in relation to denture-bearing areas.
Together, they give the most accurate measurement of the floor of the mouth height, which is crucial in complete denture fabrication.
Which of the following is the most accurate to measure the height of the
floor of the mouth
1) Using a periodontal probe
2) Use of a special tray
3) Use of periodontal probe and a special tray
4) Using straight probe
Scorbutic rosary refers to the sharp, angular prominence of the costochondral junctions seen in scurvy (vitamin C deficiency). This is distinct from the blunter, rounded enlargement seen in rickets.
Sharply angulated ribs with or without nodules with backward position of sternum is known as:
1) Hutchinsons sign
2) Rickety rosary
3) Trail sign
4) Scorbutic rosary
The dorsal surface of the tongue has specialized keratinized stratified squamous epithelium with papillae.
True regarding epithelial lining of tongue is
1) Stratified squamous non keratinized epithelium
2) Non stratified non keratinized squamous epithelium
3) Stratified squamous keratinized specialized
4) Stratified squamous non-keratinized
Epithelial cells migrate rapidly to the root surface and form a new epithelial attachment via hemidesmosomes within approximately one week following periodontal surgery.
Epithelial attachment to root surface via hemidesmosomes occurs how much time after periodontal surgey?
1) 2 weeks
2) 4 weeks
3) 1 week
4) 2 months
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