Question 156 · LDEK · Materials in pediatric dentistry
Which of the following sentences concerning restorative materials used in milk molar teeth are false?
1) glass-ionomer materials should not be used in a restoration of deep lesions exposed to heavy mastication forces if the restoration is to remain in mouth for longer than 3 years;
2) glass-ionomer materials can be used in a restoration of big cavities, exposed to heavy mastication forces if the restoration is to remain in mouth for longer than 5 years;
3) durability of an amalgam restoration is comparable to that of glass-ionomer one;
4) amalgam material can be used in children with a moderate risk of caries and in uncooperative ones;
5) compomers do not provide good retention in milk teeth.
The correct answer is:
2) glass-ionomer materials can be used in a restoration of big cavities, exposed to heavy mastication forces if the restoration is to remain in mouth for longer than 5 years;
3) durability of an amalgam restoration is comparable to that of glass-ionomer one;
4) amalgam material can be used in children with a moderate risk of caries and in uncooperative ones;
5) compomers do not provide good retention in milk teeth.
The correct answer is:
- A. 1,3,5.
- B. 1,4,5.
- C. 2,3,5.
- D. 2,3.
- E. only 2.
Hint
Compare the durability of glass-ionomer, amalgam and compomer restorations in stress-bearing primary molars.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Pediatric dentistry
- An injury to the tooth and ligament without displacement with increased mobility, and tenderness to percussion with a bleeding from the gingival…
- Find the true sentence on the neonatal line:
- Which of the following is a result of apexogenesis?
- In a child aged 5, a deep caries lesion with a pulp exposure in the tooth 84 was found. The pulp hurts and bleeds while pressed. On an x-ray one can…
- An indication for indirect pulp capping in the deciduous tooth is:
- After pulpectomy of the pulp in tooth 85 with a use of MTA in a 5-year-old child the best way to restore the tooth is to use: