MOSBY’S DENTAL HYGIENE BOARD
REVIEW 2026 QUESTIONS AND
ANSWERS | COMPREHENSIVE NBDHE
STUDY GUIDE
GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers| 100% Verified
Exam Prep and Comprehensive Rationales Included
,Which injections technique would be used to achieve Posterosuperior alveolar block
anesthesia of teeth # 15 and # 16?
The infraorbital foramen is located in which bone? Maxilla
All of the following are foramina in the sphenoid bone A. incisive foramen
EXCEPT the
A. Incisive papilla
B. Superior orbital fissure
Which muscle retracts the tongue? Styloglossus
Which plane of dissection divides the body into anterior Frontal
and posterior portions?
Teeth # 3 and # 14 are contralateral to each other
The following characteristics describe muscle tissue B. Muscle cells are called sarcomeres.
EXCEPT one. Which one is the EXCEPTION?
A. Each muscle has two ends
B. Muscle cells are called sarcomeres
Which lymph nodes drain both sides of the chin, the Submental
lower lip, the floor of the mandibular incisors?
Which endocrine gland matures T-lymphocytes for the Thymus
immune system and undergoes involution (reduces in
size) after puberty?
The corrugator supercilii is a muscle of facial expression Eye
in which region?
Which muscle elevates the mandible? Medial pterygoid
Which muscle originates from the alveolar process the Buccinator
maxilla, the alveolar process of the mandible, and the
pterygomandibular raphe?
Which part of the brain homeostasis? Hypothalamus
,Which branch of the trigeminal nerve contains both Mandibular V3
sensory and motor components?
Which of the following are divisions or systems of the Sympathetic system, parasympathetic system
autonomic nervous system?
Which cranial provides parasympathetic innervation to X
the cardiac muscles, thymus, and stomach?
Which of the following is NOT innervated by the middle Distobuccal root of tooth # 2
superior alveolar nerve?
The muscles of facial expression innervated by which VII
nerve?
Which vein receives blood flow from the superficial Retromandibular
temporal vein and the facial vein and drains into the
external jugular vein?
The articulation of the temporomandibular joint involves Temporal bone , mandibular condyles
which two bones?
Which artery supplies the mandibular teeth and the Inferior alveolar
surrounding tissues with blood?
Which major artery supplies the brain with blood and is Common carotid
palpated during emergency situations?
Which artery is the source of the ophthalmic artery, has Internal carotid
NO branches, and is located deep to the
sternocleidomastoid muscle?
The facial artery is a direct branch of which main artery? External carotid
, Which of the following arteries supplies maxillary anterior Anterior superior alveolar
teeth with blood?
The facial vein drains each region of the head and neck Orbital region
EXCEPT one. Which one is the EXCEPTION?
Veins of teeth have alveolar branches and dental Dental branches
branches. Which branch type would drain the pulp tissue
of teeth through the apical foramen?
Which vein has NO valves, drains most of the head and Internal jugular
neck region, and does NOT drain any of the dentition?
Many veins in the head and neck region lack valves. A. True
Valveless veins of the head and neck contribute to the
severe and rapid spread of dental infections.
A. True
B. False
Each of the following is an afferent cranial nerve EXCEPT D. Hypoglossal
one. Which one is the EXCEPTION?
C. Olfactory
D. Hypoglossal
Which muscle, upon contraction, protrudes the tongue? Genioglossus
Each of the following is a suprahyoid muscle EXCEPT one. D. Sternohyoid
Which one is the EXCEPTION?
C. Stylohyoid
D. Sternohyoid
Cervical lymph nodes run along which muscle? Sternocleidomastoid
For each numbered muscle, select the most closely 1. Mentalis- b. raising chin and protruding
linked facial expression from the list provided. 2. Risorius- d. stretching lips
1. Mentalis - b. raising chin and protruding 3. Corrugator supercilii- a. frowning
2. Risorius - d. stretching lips 4. Levator anguli oris- e. smiling
3. Corrugator supercilii - a. frowning 5. Buccinator c. chewing
4. Levator anguli oris - e. smiling
5. Buccinator - c. chewing
REVIEW 2026 QUESTIONS AND
ANSWERS | COMPREHENSIVE NBDHE
STUDY GUIDE
GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers| 100% Verified
Exam Prep and Comprehensive Rationales Included
,Which injections technique would be used to achieve Posterosuperior alveolar block
anesthesia of teeth # 15 and # 16?
The infraorbital foramen is located in which bone? Maxilla
All of the following are foramina in the sphenoid bone A. incisive foramen
EXCEPT the
A. Incisive papilla
B. Superior orbital fissure
Which muscle retracts the tongue? Styloglossus
Which plane of dissection divides the body into anterior Frontal
and posterior portions?
Teeth # 3 and # 14 are contralateral to each other
The following characteristics describe muscle tissue B. Muscle cells are called sarcomeres.
EXCEPT one. Which one is the EXCEPTION?
A. Each muscle has two ends
B. Muscle cells are called sarcomeres
Which lymph nodes drain both sides of the chin, the Submental
lower lip, the floor of the mandibular incisors?
Which endocrine gland matures T-lymphocytes for the Thymus
immune system and undergoes involution (reduces in
size) after puberty?
The corrugator supercilii is a muscle of facial expression Eye
in which region?
Which muscle elevates the mandible? Medial pterygoid
Which muscle originates from the alveolar process the Buccinator
maxilla, the alveolar process of the mandible, and the
pterygomandibular raphe?
Which part of the brain homeostasis? Hypothalamus
,Which branch of the trigeminal nerve contains both Mandibular V3
sensory and motor components?
Which of the following are divisions or systems of the Sympathetic system, parasympathetic system
autonomic nervous system?
Which cranial provides parasympathetic innervation to X
the cardiac muscles, thymus, and stomach?
Which of the following is NOT innervated by the middle Distobuccal root of tooth # 2
superior alveolar nerve?
The muscles of facial expression innervated by which VII
nerve?
Which vein receives blood flow from the superficial Retromandibular
temporal vein and the facial vein and drains into the
external jugular vein?
The articulation of the temporomandibular joint involves Temporal bone , mandibular condyles
which two bones?
Which artery supplies the mandibular teeth and the Inferior alveolar
surrounding tissues with blood?
Which major artery supplies the brain with blood and is Common carotid
palpated during emergency situations?
Which artery is the source of the ophthalmic artery, has Internal carotid
NO branches, and is located deep to the
sternocleidomastoid muscle?
The facial artery is a direct branch of which main artery? External carotid
, Which of the following arteries supplies maxillary anterior Anterior superior alveolar
teeth with blood?
The facial vein drains each region of the head and neck Orbital region
EXCEPT one. Which one is the EXCEPTION?
Veins of teeth have alveolar branches and dental Dental branches
branches. Which branch type would drain the pulp tissue
of teeth through the apical foramen?
Which vein has NO valves, drains most of the head and Internal jugular
neck region, and does NOT drain any of the dentition?
Many veins in the head and neck region lack valves. A. True
Valveless veins of the head and neck contribute to the
severe and rapid spread of dental infections.
A. True
B. False
Each of the following is an afferent cranial nerve EXCEPT D. Hypoglossal
one. Which one is the EXCEPTION?
C. Olfactory
D. Hypoglossal
Which muscle, upon contraction, protrudes the tongue? Genioglossus
Each of the following is a suprahyoid muscle EXCEPT one. D. Sternohyoid
Which one is the EXCEPTION?
C. Stylohyoid
D. Sternohyoid
Cervical lymph nodes run along which muscle? Sternocleidomastoid
For each numbered muscle, select the most closely 1. Mentalis- b. raising chin and protruding
linked facial expression from the list provided. 2. Risorius- d. stretching lips
1. Mentalis - b. raising chin and protruding 3. Corrugator supercilii- a. frowning
2. Risorius - d. stretching lips 4. Levator anguli oris- e. smiling
3. Corrugator supercilii - a. frowning 5. Buccinator c. chewing
4. Levator anguli oris - e. smiling
5. Buccinator - c. chewing
