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NEET MDS Quiz - Practice Test
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Practice Test

Orthodontics - 3 Questions

1
Orthodontics

Orthodontic tooth movement is inhibited by which of the following drugs

1) NSAIDS, such as Brufen  
2) OPIOIDS, such as CORTISONE
3) Antibiotics such as tetracycline
4) Vasoconstrictors such as adrenaline

📝 Explanation:

SOLUTION 

NSAIDS, i.e. Brufen, etc. inhibit tooth movement as they interfere with production of prostaglandins.

• Nimesulide does not interfere with PG production and so can be safely given during tooth movements.

2
Orthodontics

Baker anchorage utilizes

1) Intermaxillary anchorage with screws
2) Intramaxillary anchorage with screws
3) Intermaxillary anchorage with elastics
4) Intramaxillary anchorage with elastics

📝 Explanation:

SOLUTION

Intermaxillary anchorage or Baker's Anchorage. This type of anchorage involves using elastics from one jaw to the other, in the form of either Class 2 elastics (moving upper teeth back) where lower molar teeth serve as anchors, or Class 3 elastics (moving lower teeth back) where upper molars serve as anchors.

Intramaxillary anchorage is also used in the form of E-chain, when elastics are used from the back molar teeth to the front teeth in the same jaw to move teeth back of the mouth.

3
Orthodontics
Transitional phase of dentition is
1) During eruption of permanent and exfoliation of deciduous teeth
2) After all permanent teeth have erupted
3) Phase during correction of malocclusion
4) None of the above

📝 Explanation:

The transitional phase of dentition refers to the period when the primary (deciduous) teeth are being replaced by permanent teeth. This phase is characterized by the simultaneous eruption of permanent teeth and the exfoliation (loss) of primary teeth. It typically occurs between the ages of 6 and 12 years. The other options do not accurately describe this transitional phase; option 2 refers to a post-transitional phase, while option 3 pertains to orthodontic treatment rather than a specific phase of dentition.

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