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PEDIATRIC DENTISTRY EXAM II – LATEST EXAM WITH COMPLETE QUESTIONS AND CORRECT ANSWERS RATED A+
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PEDIATRIC DENTISTRY EXAM II – LATEST EXAM WITH COMPLETE QUESTIONS AND CORRECT ANSWERS RATED A+
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PEDIATRIC DENTISTRY EXAM II – 8340 2025LATEST EXAM WITH COMPLETE
QUESTIONS AND CORRECT ANSWERS
RATED A+
Under what circumstances is no space maintenance indicated?
Correct Answer - ≥2 teeth distal to the space and both are in
occlusion (applies to 1st primary molars, not to anterior teeth)
Premature tooth loss in the anterior is due primarily to ______
and ______ while early tooth loss in the posterior is most often
due to ______. Correct Answer - Caries and Trauma
- Caries
Maximum space loss following premature loss of a primary tooth
occurs within the ____________. When should a space
maintainer be placed? Correct Answer - Within the first few
weeks
- Ideally insert space maintainer on the day of tooth extraction
T/F
Dental age is more important than chronological age. Bone loss
as a result of infection may accelerate eruption of a
succedaneous tooth. Correct Answer - True
- True
On average it takes the premolars approximately _______
months to move through 1mm of bone as measured on a
bitewing. Correct Answer - 6 months
What are the factors to consider prior to space maintenance
therapy? Correct Answer - Time elapsed since loss of tooth
,- Dental age of patient
- Amount of bone over unerupted tooth
- Congenital absence of teeth
- Presence of two fully erupted teeth in occlusion posterior to
space
What are the consequences of a lack of space maintenance?
Correct Answer - Space closure and loss of arch continuity →
malocclusion
- Space closure and resultant impaction of succedaneous teeth
- Supra-eruption of the opposing tooth in some cases
What are the indications for using the Band and Loop (B&L)?
Correct Answer - Unilateral loss of the primary 1st molar before
or after eruption of the permanent 1st molar
- Bilateral loss of a primary molar before the eruption of the
permanent incisors
What are the indications for the Crown and Loop? Correct Answer
- Generally not indicated
- It is much easier to restore the abutment tooth with a SSC and
then make a Band and loop that fits the crown
What is the Distal Shoe space maintainer? Correct Answer -
Used to maintain the space of the Primary 2nd molar which has
been lost prior to the eruption of the Permanent 1st molar
- Band w/ stainless steel extension that acts as a guide plane to
direct the eruption of the permanent 1st molar
What are the disadvantages to the Distal shoe? Correct Answer -
Gingiva must be Incised when appliance is placed
- Cantilever design makes it fragile
- No occlusal function is restored
- May cause gingival infection
, When is the lower lingual holding arch (LLHA) indicated? Correct
Answer - Space maintenance in which teeth are lost in both
quadrants of the same arch
- Greater than 1 tooth is missing in a quadrant
When is the LLHA contraindicated? Correct Answer -
Contraindicated before eruption of the Permanent Lower incisors
b/c the permanent lower incisors erupt lingual to the primary
incisors and the wire may interfere w/ eruption of the permanent
teeth
What is the Nance appliance and Transpalatal arch used for?
What is the difference between the two? Correct Answer - Use a
large wire to connect the banded teeth on both sides of the upper
arch
- Nance: acrylic button rests directly on the palatal rugae
- Transpalatal: wire traverses the palate without touching the
palate
List the Advantages of a removable space maintainer. Correct
Answer - Easy to clean
- Permits the teeth to be cleaned
- Maintains or restores the vertical dimension
- May be removed to allow circulation to the soft tissues
- Check-ups for caries are easily made
List the disadvantages of a Removable space maintainer. Correct
Answer - Patient may not wear it (compliance issues)
- May be Lost
- Easier to Break
- May irritate the soft tissue (esp. without cleaning)
- May lack retention
Define Indirect pulp cap. Correct Answer - Procedure where the
non-remineralizable carious tissue is removed, and a thin layer of
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