Answer Questions 47 to 49 Based on Case B

Answer questions 47 to 49 based on Case B.
CASE B
Maria, an 8-year-old girl with cerebral palsy, presents to the dental clinic for her 6-month continued care appointment. The dental hygienist performs an oral examination and updates her dental charting. Maria has severe malocclusion, which makes it difficult for her to clean her teeth adequately. Her gingiva is inflamed. The dental hygienist finds several incipient caries. A periodontal assessment reveals probing depths of 4 to 5 mm isolated to the posterior teeth. Maria's plaque score is 64%. The dental hygienist questions Maria about her daily oral hygiene habits. Maria's mother, who is also attending the appointment, states that her daughter is very diligent about brushing her teeth after meals. However, Maria's limited dexterity affects her oral self-care ability. Maria's diet consists of three balanced meals per day and snacks. Her mother is very diligent about preparing vegetables for Maria, slightly overcooking the vegetables so that they are easy for Maria to eat. Maria consumes three or four glasses of 100% fruit juice daily. Her mother offers juice with meals and also during snack time. Sugar-containing foods are not kept at home, so Maria only consumes them on special occasions.
-All of the following nutrients are typically lower in those individuals who are edentulous or who have limited mastication because of loss of teeth EXCEPT one. Which one is the EXCEPTION?

A) Magnesium
B) Folic acid
C) Zinc
D) Vitamin B₁₂