Q: The Arrows Are Pointing At:

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RHS, ICE, GC< DANB, Dental assisting bords

Q: The arrows are pointing at:

A. Fusion
B. Concrescence
C. Gemination
D. Dens in dente

Dens in dente (also called dens invaginatus) is formed as the enamel organ goes into the crown of a tooth before mineralization is completed. Radiographically, a tooth-like structure appears within the crown. Due to the irregularities of the crown structure, the tooth is more vulnerable to caries and infections, including periapical lesions. Dens invaginatus is most common with maxillary lateral incisors.

  • Gemination is when one crown splits into two, creating two crowns.
  • Fusion is the combination of two tooth buds with separate canals.
  • Concrescence occurs when roots adhere together by cementum only.

 

Answer: (D). Dens in dente

 

Now, you may have noticed that this does NOT really look like a “tooth” within the tooth. It may just look like some radiopacity inside the tooth. For this reason, if a question asks you to identify dens in dente in the DANB® Examination, General chairside, Infection control, Topical fluoride, NDAEB® exams, etc.), look very carefully. Also, look at the keywords “maxillary lateral incisors” too that could be a hint to dens in dente.

Our goal at SmarterDA is to make everyone successful in their dental assistant board examinations (regardless of whether you pay for our courses or not). So, share the knowledge and be that fantastic Certified Dental Assistant™!

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Author: Claire RDH, MS

Claire is the founder of StudentRDH and SmarterDA– exams prep solutions for the dental hygiene and dental assisting students. The online solutions deliver content of the highest quality through the latest e-learning technology. According to some students, studying is now “addictive!” Prior to her career in the dental field, Claire was an education specialist at Boston Children’s Museum. Claire is licensed to practice in the United States as well as Canada.

Disclaimer: DANB®, Certified Dental Assistant™and ICE® are registered trademarks of the Dental Assisting National Board, Inc. (“DANB”). This article is not sponsored or endorsed by or affiliated with the DANB.

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