Question 150 · LDEK · Developmental disorders of teeth
In the dentition of a 4-year-old child there is no tooth 82, and the tooth 81 has an enlarged crown with a shallow fissure on the labial surface and an indentation on the incisal edge. On the x-ray of 81 there are 2 separate root canals. Such a state is called:
- A. fusion.
- B. concrescence.
- C. gemination.
- D. Leong tooth.
- E. dens invaginatus.
Hint
Count the teeth in the arch and note the number of root canals; this distinguishes union of two germs from splitting of one.
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
- The process of enamel demineralization can be reversed or minimalized by:
- Indicate the definition of Molar-Incisor Hypomineralization (MIH):
- ”Stains and abrasion on occlusal surfaces of first permanent molars and the incisal edges of permanent incisors; caries involving one or two…
- Indicate the true statement concerning dental trauma:
- The indications for partial pulpotomy in an immature permanent tooth include:
- Which of the following sentences concerning restorative materials used in milk molar teeth are false?