Palatal Hyperplasia due to Denture Irritation

# Treatment of choice for palatal hyperplasia occurring due to denture irritation is:
a) Discontinuation of dentures
b) Radicular excision
c) Supraperiosteal excision
d) No treatment necessary

The correct answer is C. Supraperiosteal excision.

Early treatment for papillary hyperplasia includes prosthesis adjustment, tissue conditioning and proper oral hygiene. Advanced treatment consists of supraperiosteal excision. There is no need to excise full thickness of palatal tissue. The techniques include removal of inflamed mucosa with electrosurgery loops, laser ablation, sharp dissection, dermabrasion brushes, and cryotherapy.

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Denture Cleaning Powder

# Which of the following is the main ingredient of denture cleaning powder or tablets?
a) Hydrogen peroxides
b) Detergents
c) Sodium perborates
d) Alkaline compounds

The correct answer is C. Sodium Perborates.

All the denture cleansing powder and tablets contain detergent, flavouring agent, alkaline compounds and sodium perborate. The main component is sodium perborate. It decomposes in water to form a peroxide solution which inturn breaks down to liberate oxygen. It is this oxygen bubbles that remove the debris on the denture surfaces.

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Iron carbide in Orthodontic Wire

# The iron carbide in orthodontic wire is in the form of:
a) Martensite
b) Ferrite
c) Carbide
d) Austenite

The correct answer is D. Austenite.

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Infantile Swallowing

# The positioning of tongue in infantile swallowing is:
a) Posterior
b) Medial
c) Lateral
d) Anterior

The correct answer is D. Anterior.

Tongue thrusting, simply defined, is the habit of thrusting the tongue forward (anterior) against the teeth or in between while swallowing. It is an infantile pattern of swallowing that has been retained by an individual.

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