Dental Hygiene Oral/Dental Anatomy
National Board Questions and Answers
Latest Version Already Passed
Which tooth is the largest in the human mouth?
✔✔ The maxillary first molar
Which part of the tooth contains the nerves and blood vessels?
✔✔ The pulp
What is the enamel primarily composed of?
✔✔ Hydroxyapatite (calcium phosphate)
What are the four main tissues found in a tooth?
✔✔ Enamel, dentin, cementum, pulp
Which teeth are responsible for tearing food?
✔✔ Canines
1
,What is the most common location for dental caries to develop?
✔✔ The occlusal surfaces of molars
What is the function of the cementum in a tooth?
✔✔ To anchor the tooth to the alveolar bone through the periodontal ligament
Which part of the tooth is visible in the mouth?
✔✔ The crown
What is the term for the space between two adjacent teeth?
✔✔ The contact area
Which tooth has the longest root in the permanent dentition?
✔✔ The maxillary canine
How many permanent incisors are present in the human mouth?
✔✔ Four (two on the upper jaw, two on the lower jaw)
2
, What is the role of the periodontal ligament?
✔✔ To attach the tooth to the alveolar bone and absorb mechanical forces
What is the name of the groove that separates the buccal and lingual cusps of posterior teeth?
✔✔ The developmental groove
Which tooth is most commonly impacted in the human mouth?
✔✔ The third molar (wisdom tooth)
What is the function of the molars in the dental arch?
✔✔ To grind and crush food
What is the difference between a central incisor and a lateral incisor?
✔✔ Central incisors are larger and located at the midline of the mouth, while lateral incisors are
located next to them
Which teeth are referred to as "bicuspids"?
✔✔ Premolars
3
National Board Questions and Answers
Latest Version Already Passed
Which tooth is the largest in the human mouth?
✔✔ The maxillary first molar
Which part of the tooth contains the nerves and blood vessels?
✔✔ The pulp
What is the enamel primarily composed of?
✔✔ Hydroxyapatite (calcium phosphate)
What are the four main tissues found in a tooth?
✔✔ Enamel, dentin, cementum, pulp
Which teeth are responsible for tearing food?
✔✔ Canines
1
,What is the most common location for dental caries to develop?
✔✔ The occlusal surfaces of molars
What is the function of the cementum in a tooth?
✔✔ To anchor the tooth to the alveolar bone through the periodontal ligament
Which part of the tooth is visible in the mouth?
✔✔ The crown
What is the term for the space between two adjacent teeth?
✔✔ The contact area
Which tooth has the longest root in the permanent dentition?
✔✔ The maxillary canine
How many permanent incisors are present in the human mouth?
✔✔ Four (two on the upper jaw, two on the lower jaw)
2
, What is the role of the periodontal ligament?
✔✔ To attach the tooth to the alveolar bone and absorb mechanical forces
What is the name of the groove that separates the buccal and lingual cusps of posterior teeth?
✔✔ The developmental groove
Which tooth is most commonly impacted in the human mouth?
✔✔ The third molar (wisdom tooth)
What is the function of the molars in the dental arch?
✔✔ To grind and crush food
What is the difference between a central incisor and a lateral incisor?
✔✔ Central incisors are larger and located at the midline of the mouth, while lateral incisors are
located next to them
Which teeth are referred to as "bicuspids"?
✔✔ Premolars
3
