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Pit and Fissure Sealant

# Teeth that have lost pits and fissure sealant show…
A. The same susceptibility to caries as teeth that have not been sealed
B. Higher susceptibility than non sealed teeth
C. Lower susceptibility than non sealed teeth.
D. The same susceptibility as teeth with full retained sealant


The correct answer is C. Lower susceptibility than non sealed teeth.

Teeth that have been sealed and then have lost the sealant have had fewer lesions than control teeth.This is possibly due to the presence of tags that are retained in the enamel after the bulk of the sealant has been sheared from the tooth surface. When the resin sealant flows over the prepared surface, it penetrates the finger-like depressions created by the etching solution. These projections of resin into the etched areas are called tags.

Best Brushing Technique for Patient with Gingival recession

# Patient comes to you with edematous gingiva, inflamed, loss of gingival contour and recession, what's the best tooth brushing technique?
A. Modified bass.
B. Modified stillman.
C. Charter.
D. Scrub.


The correct answer is B. Modified Stillman.

The brushing technique which is recommended after periodontal surgery is Charter.
The brushing technique which is recommended for areas with progression gingival recession is modified Stillman.

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Third Molar Impaction Extraction

# If impacted 3rd molar is to be extracted in patient planned for bilateral sagittal split osteotomy then extraction should be done:
a) 8-12 weeks after surgery
b) At the time of surgery
c) 1 month after surgery
d) 6 month before surgery


The correct answer is D. 6 months before surgery.

The poor split occurs more in cases where the last molar is removed at the time of surgery. Hence it is advised to have the last molar (if needed) to be removed about 6 months prior to surgery.



Ecchymosis and Hematoma Treatment

# Ecchymosis and hematoma are treated with:
a) Intermittent ice pack
b) Continuous ice pack
c) Intermittent hot pack
d) Pressure and pack


The correct answer is: A. Intermittent ice pack

Management of ecchymosis consists of the immediate application of cold followed by heat. In severe cases, antibiotics are given along with proteolytic enzymes which causes break down of coagulated blood.

In the management of hematoma do not apply heat to the area for at least 4 to 6 hours after the incident.

Heat may be applied to the region beginning the next day. Although its benefits are debatable.
Ice may be applied to the region immediately on recognition of a developing hematoma. It acts as
both an analgesic and a vasoconstrictor, and it may aid in minimizing the size of hematoma.

Jorgensen Technique of IV sedation

# In Jorgensen technique on IV sedation for dental procedure drugs used are:
a) Pentobarbital
b) Meperidine
c) Scopolamine
d) All the above



The correct answer is: D. All of the above.

Jorgenson technique includes intravenous administration of opioids. The drugs used in Jorgenson technique are:
a) Pentobarbital
b) Meperidine
c) Scopolamine (Hyoscine)
d) Pethidine, etc.

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Sublingual Space vs Submandibular Space

# Sublingual space is divided from submandibular space by:
a) Fibres of mylohyoid
b) Submandibular gland
c) Body of mandible
d) Geniohyoid


The correct answer is A. Fibres of Mylohyoid.

The mylohyoid muscle, which forms the floor of the oral cavity, is the key to the diagnosis and surgical management of the infections of the sublingual and submandibular spaces. The submandibular space is separated from the overlying sublingual space by the fibers of the mylohyoid muscle.

Cavernous Sinus Thrombosis

# Cavernous sinus thrombosis following infection of anterior maxillary teeth most often from spread of infection along:
a) Facial artery
b) Angular artery
c) Ophthalmic vein
d) Pterygoid plexus


The correct answer is C. Ophthalmic vein.

Cavernous thrombosis (CST) is the infectious thrombosis of the cavernous sinus, which is a dural venous space present in the middle cranial fossa on either side of the sella turcica.

• It is a paired sinus, anterior and posterior. Infections to cavernous sinus may spread by two
pathways.

• The anterior route composed of ophthalmic veins and their anastomosis with the facial vein;
the angular vein; the infraorbital vein; and the inferior palpebral vein; readily allows the invasion of the cavernous sinus. Spread of infection by this pathway presents the classic picture of a fulminating cavernous .sin us thrombosis and CST through this route is more common than posterior route.

• The pterygoid venous plexus, which constitutes the posterior route, provide a connection between cavernous sinus and the retromandibular vein.