# The space maintainer which is contraindicated in a child suffering from subacute bacterial endocarditis is:
A. Removable
B. Crown and loop
C. Band and loop
D. Distal shoe
The correct answer is D. Distal shoe.
A distal shoe space maintainer is indicated when the primary 2nd molar is lost before eruption of the permanent 1st molar.
Distal shoe space maintainer is contraindicated in:
• Patient with heart diseases
• Patients with poor oral hygiene
• Hemophilic patients
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