ALLIED HEALTH & DENTAL EDUCATION
HESI Dental Hygiene Exam
Latest Update
260 Verified Questions with 100% Correct Answers
Graded A+ | Aligned to HESI Examination Blueprint
Total Questions Sections Cognitive Mix
260 10 R/A/An
Verified Clinical Domains 25/50/25 %
Aligned with:
HESI Dental Hygiene Examination Blueprint
Dental Hygiene National Board Standards
Evidence-Based Clinical Practice Guidelines (2026/2027 Edition)
Prepared for Dental Hygiene Candidates Seeking Licensure and Clinical Excellence
,HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
Examination Blueprint & Contents
This comprehensive examination is structured according to the HESI Dental Hygiene Examination Blueprint and Dental
Hygiene National Board Standards. The 260 verified questions are distributed across ten clinical domains with a cognitive
level distribution of 25% recall, 50% application, and 25% analysis. Each item includes a rationale grounded in current
evidence-based practice guidelines to support exam preparation and clinical decision-making.
Section Domain Questions Cognitive Distribution
1 Anatomy & Physiology of the Head, Neck, and Oral Cavity Q1 – Q30 Recall / Application / Analysis
2 Oral Pathology & Radiology Q31 – Q60 Recall / Application / Analysis
3 Periodontology Q61 – Q85 Recall / Application / Analysis
4 Dental Materials & Restorative Dentistry Q86 – Q110 Recall / Application / Analysis
5 Pharmacology & Pain Management Q111 – Q135 Recall / Application / Analysis
6 Clinical Patient Care & Treatment Planning Q136 – Q170 Recall / Application / Analysis
7 Prevention, Nutrition, & Patient Education Q171 – Q195 Recall / Application / Analysis
8 Community Health & Research Q196 – Q215 Recall / Application / Analysis
9 Ethics, Jurisprudence, & Professional Practice Q216 – Q235 Recall / Application / Analysis
10 Medical Emergencies & Special Populations Q236 – Q260 Recall / Application / Analysis
Examination Design Features
• Question Style: 75% scenario-based (patient cases, diagnostic reasoning, treatment planning); 25% direct knowledge.
• Special Inclusions: 25 clinical scenario questions, 20 radiology and pathology interpretation questions, and 15
pharmacology and pain management items.
• Answer Format: Each item provides one correct option (marked *[CORRECT]*) with three plausible distractors.
• Rationale Depth: Each rationale is 2–3 sentences grounded in HESI Dental Hygiene standards and current evidence-based
practice references.
Page 2
,HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
Section 1: Anatomy & Physiology of the Head, Neck, and
Oral Cavity (Q1 – Q30)
Q1. A 45-year-old patient presents with limited mouth opening and preauricular pain on the left side. Palpation
reveals tenderness over the temporomandibular joint during translation. Which compartment of the TMJ is
primarily responsible for translational (gliding) movement during wide mouth opening?
A. Upper joint compartment, between the articular disc and the articular eminence *[CORRECT]*
B. Lower joint compartment, between the condylar head and the articular disc
C. Retrodiscal tissue posterior to the condyle
D. Lateral pterygoid muscle insertion on the condylar neck
Correct Answer: A
Rationale: The upper joint compartment (supradiscal), bounded superiorly by the glenoid fossa and articular eminence and
inferiorly by the articular disc, performs translational (gliding) movement during mouth opening. The lower compartment
(infradiscal) between the disc and the condylar head performs rotational (hinge) movement in the first 20–25 mm of
opening. HESI Dental Hygiene standards emphasize accurate TMJ anatomy for evaluating temporomandibular disorders
(TMD). Option B is incorrect because the lower compartment handles rotation, not translation. Options C and D describe
adjacent structures but are not the compartments responsible for joint movement.
Q2. During an intraoral examination, the dental hygienist palpates a small opening on the floor of the mouth that
secretes serous saliva. Which structure is being assessed, and which cranial nerve provides parasympathetic
innervation to it?
A. Sublingual gland; CN VII (facial nerve) via chorda tympani
B. Submandibular gland duct (Wharton's duct); CN VII (facial nerve) via chorda tympani
C. Parotid gland duct (Stensen's duct); CN IX (glossopharyngeal nerve)
D. Submandibular gland duct (Wharton's duct); CN IX (glossopharyngeal nerve) *[CORRECT]*
Correct Answer: D
Rationale: Wharton's duct opens at the sublingual caruncle on the floor of the mouth and drains the submandibular gland,
which produces a mixed but predominantly serous secretion. Parasympathetic innervation to the submandibular gland is
provided by the chorda tympani branch of CN VII (facial nerve), synapsing in the submandibular ganglion. HESI Dental
Hygiene standards require accurate identification of salivary gland anatomy and innervation. Option A is incorrect because
the sublingual gland has multiple ducts (ducts of Rivinus) rather than a single caruncular opening. Option B misidentifies
the nerve. Option C incorrectly attributes Wharton's duct to the parotid gland, which actually drains via Stensen's duct into
the buccal mucosa opposite the maxillary second molar.
Q3. A patient reports numbness of the lower lip following an inferior alveolar nerve block. Which branch of the
trigeminal nerve is anesthetized, and what is its terminal branch that exits the mental foramen?
A. Maxillary division (V2); terminal branch is the infraorbital nerve
B. Mandibular division (V3); terminal branch is the mental nerve *[CORRECT]*
C. Mandibular division (V3); terminal branch is the buccal nerve
D. Maxillary division (V2); terminal branch is the anterior superior alveolar nerve
Correct Answer: B
Rationale: The inferior alveolar nerve is a branch of the mandibular division (V3) of the trigeminal nerve (CN V). It enters
the mandibular canal through the mandibular foramen and exits as the mental nerve at the mental foramen, located on
Page 3
, HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
the buccal cortex of the mandible near the apex of the second premolar. Anesthesia of this nerve produces numbness of the
lower lip, chin, and buccal gingiva of the anterior teeth. HESI Dental Hygiene standards require the clinician to know V3
branch anatomy for safe and effective local anesthetic delivery. Option A is incorrect because V2 supplies the maxilla and
exits as the infraorbital nerve. Option C confuses the mental nerve with the buccal nerve, which provides sensory supply to
the buccal mucosa but does not exit the mental foramen. Option D misattributes the mandibular nerve to V2.
Q4. A 38-year-old patient presents with a deep, pulsating swelling in the submandibular space. The hygienist
understands that lymph from the lower lip, tip of the tongue, and lower incisor teeth drains first into which
lymph node group?
A. Submental nodes *[CORRECT]*
B. Submandibular nodes
C. Deep cervical nodes
D. Superficial parotid nodes
Correct Answer: A
Rationale: The submental lymph nodes, located between the anterior bellies of the digastric muscles, receive primary
drainage from the lower lip, tip of the tongue, floor of the mouth, and lower incisor teeth. From the submental nodes,
lymph then drains to the submandibular nodes and eventually into the deep cervical chain. HESI Dental Hygiene standards
require accurate knowledge of lymphatic drainage patterns to identify potentially metastatic or infectious spread. Option B
receives drainage from the submental nodes and other oral structures but is not the primary first-echelon node for the
listed regions. Option C represents the deeper, more distal drainage pathway. Option D drains the parotid, temporal, and
auricular regions.
Q5. During an extraoral examination, the hygienist palpates a pulse at the anterior border of the masseter
muscle. Which artery is being palpated, and what is its parent vessel?
A. Facial artery; branch of the external carotid artery *[CORRECT]*
B. Superficial temporal artery; branch of the internal carotid artery
C. Maxillary artery; branch of the external carotid artery
D. Lingual artery; branch of the internal carotid artery
Correct Answer: A
Rationale: The facial artery crosses the inferior border of the mandible at the anterior border of the masseter muscle,
where its pulse is clinically palpable. It is a branch of the external carotid artery and supplies the face, submandibular
gland, and tonsils. HESI Dental Hygiene standards require hygienists to identify vascular landmarks to avoid inadvertent
intravascular injection during local anesthesia. Option B incorrectly identifies the parent vessel; the superficial temporal
artery is a terminal branch of the external carotid, not the internal carotid. Option C correctly identifies the parent vessel
but the maxillary artery is not palpable at the masseter border. Option D is incorrect because the lingual artery supplies the
tongue and does not cross the mandibular border.
Q6. Which of the following muscles of mastication is primarily responsible for protrusion of the mandible and
depression (opening) of the jaw during functional movement?
A. Masseter
B. Medial pterygoid
C. Lateral pterygoid *[CORRECT]*
D. Temporalis
Correct Answer: C
Page 4
HESI Dental Hygiene Exam
Latest Update
260 Verified Questions with 100% Correct Answers
Graded A+ | Aligned to HESI Examination Blueprint
Total Questions Sections Cognitive Mix
260 10 R/A/An
Verified Clinical Domains 25/50/25 %
Aligned with:
HESI Dental Hygiene Examination Blueprint
Dental Hygiene National Board Standards
Evidence-Based Clinical Practice Guidelines (2026/2027 Edition)
Prepared for Dental Hygiene Candidates Seeking Licensure and Clinical Excellence
,HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
Examination Blueprint & Contents
This comprehensive examination is structured according to the HESI Dental Hygiene Examination Blueprint and Dental
Hygiene National Board Standards. The 260 verified questions are distributed across ten clinical domains with a cognitive
level distribution of 25% recall, 50% application, and 25% analysis. Each item includes a rationale grounded in current
evidence-based practice guidelines to support exam preparation and clinical decision-making.
Section Domain Questions Cognitive Distribution
1 Anatomy & Physiology of the Head, Neck, and Oral Cavity Q1 – Q30 Recall / Application / Analysis
2 Oral Pathology & Radiology Q31 – Q60 Recall / Application / Analysis
3 Periodontology Q61 – Q85 Recall / Application / Analysis
4 Dental Materials & Restorative Dentistry Q86 – Q110 Recall / Application / Analysis
5 Pharmacology & Pain Management Q111 – Q135 Recall / Application / Analysis
6 Clinical Patient Care & Treatment Planning Q136 – Q170 Recall / Application / Analysis
7 Prevention, Nutrition, & Patient Education Q171 – Q195 Recall / Application / Analysis
8 Community Health & Research Q196 – Q215 Recall / Application / Analysis
9 Ethics, Jurisprudence, & Professional Practice Q216 – Q235 Recall / Application / Analysis
10 Medical Emergencies & Special Populations Q236 – Q260 Recall / Application / Analysis
Examination Design Features
• Question Style: 75% scenario-based (patient cases, diagnostic reasoning, treatment planning); 25% direct knowledge.
• Special Inclusions: 25 clinical scenario questions, 20 radiology and pathology interpretation questions, and 15
pharmacology and pain management items.
• Answer Format: Each item provides one correct option (marked *[CORRECT]*) with three plausible distractors.
• Rationale Depth: Each rationale is 2–3 sentences grounded in HESI Dental Hygiene standards and current evidence-based
practice references.
Page 2
,HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
Section 1: Anatomy & Physiology of the Head, Neck, and
Oral Cavity (Q1 – Q30)
Q1. A 45-year-old patient presents with limited mouth opening and preauricular pain on the left side. Palpation
reveals tenderness over the temporomandibular joint during translation. Which compartment of the TMJ is
primarily responsible for translational (gliding) movement during wide mouth opening?
A. Upper joint compartment, between the articular disc and the articular eminence *[CORRECT]*
B. Lower joint compartment, between the condylar head and the articular disc
C. Retrodiscal tissue posterior to the condyle
D. Lateral pterygoid muscle insertion on the condylar neck
Correct Answer: A
Rationale: The upper joint compartment (supradiscal), bounded superiorly by the glenoid fossa and articular eminence and
inferiorly by the articular disc, performs translational (gliding) movement during mouth opening. The lower compartment
(infradiscal) between the disc and the condylar head performs rotational (hinge) movement in the first 20–25 mm of
opening. HESI Dental Hygiene standards emphasize accurate TMJ anatomy for evaluating temporomandibular disorders
(TMD). Option B is incorrect because the lower compartment handles rotation, not translation. Options C and D describe
adjacent structures but are not the compartments responsible for joint movement.
Q2. During an intraoral examination, the dental hygienist palpates a small opening on the floor of the mouth that
secretes serous saliva. Which structure is being assessed, and which cranial nerve provides parasympathetic
innervation to it?
A. Sublingual gland; CN VII (facial nerve) via chorda tympani
B. Submandibular gland duct (Wharton's duct); CN VII (facial nerve) via chorda tympani
C. Parotid gland duct (Stensen's duct); CN IX (glossopharyngeal nerve)
D. Submandibular gland duct (Wharton's duct); CN IX (glossopharyngeal nerve) *[CORRECT]*
Correct Answer: D
Rationale: Wharton's duct opens at the sublingual caruncle on the floor of the mouth and drains the submandibular gland,
which produces a mixed but predominantly serous secretion. Parasympathetic innervation to the submandibular gland is
provided by the chorda tympani branch of CN VII (facial nerve), synapsing in the submandibular ganglion. HESI Dental
Hygiene standards require accurate identification of salivary gland anatomy and innervation. Option A is incorrect because
the sublingual gland has multiple ducts (ducts of Rivinus) rather than a single caruncular opening. Option B misidentifies
the nerve. Option C incorrectly attributes Wharton's duct to the parotid gland, which actually drains via Stensen's duct into
the buccal mucosa opposite the maxillary second molar.
Q3. A patient reports numbness of the lower lip following an inferior alveolar nerve block. Which branch of the
trigeminal nerve is anesthetized, and what is its terminal branch that exits the mental foramen?
A. Maxillary division (V2); terminal branch is the infraorbital nerve
B. Mandibular division (V3); terminal branch is the mental nerve *[CORRECT]*
C. Mandibular division (V3); terminal branch is the buccal nerve
D. Maxillary division (V2); terminal branch is the anterior superior alveolar nerve
Correct Answer: B
Rationale: The inferior alveolar nerve is a branch of the mandibular division (V3) of the trigeminal nerve (CN V). It enters
the mandibular canal through the mandibular foramen and exits as the mental nerve at the mental foramen, located on
Page 3
, HESI Dental Hygiene Exam | 2026/2027 Latest Update Graded A+ | 260 Verified Questions
the buccal cortex of the mandible near the apex of the second premolar. Anesthesia of this nerve produces numbness of the
lower lip, chin, and buccal gingiva of the anterior teeth. HESI Dental Hygiene standards require the clinician to know V3
branch anatomy for safe and effective local anesthetic delivery. Option A is incorrect because V2 supplies the maxilla and
exits as the infraorbital nerve. Option C confuses the mental nerve with the buccal nerve, which provides sensory supply to
the buccal mucosa but does not exit the mental foramen. Option D misattributes the mandibular nerve to V2.
Q4. A 38-year-old patient presents with a deep, pulsating swelling in the submandibular space. The hygienist
understands that lymph from the lower lip, tip of the tongue, and lower incisor teeth drains first into which
lymph node group?
A. Submental nodes *[CORRECT]*
B. Submandibular nodes
C. Deep cervical nodes
D. Superficial parotid nodes
Correct Answer: A
Rationale: The submental lymph nodes, located between the anterior bellies of the digastric muscles, receive primary
drainage from the lower lip, tip of the tongue, floor of the mouth, and lower incisor teeth. From the submental nodes,
lymph then drains to the submandibular nodes and eventually into the deep cervical chain. HESI Dental Hygiene standards
require accurate knowledge of lymphatic drainage patterns to identify potentially metastatic or infectious spread. Option B
receives drainage from the submental nodes and other oral structures but is not the primary first-echelon node for the
listed regions. Option C represents the deeper, more distal drainage pathway. Option D drains the parotid, temporal, and
auricular regions.
Q5. During an extraoral examination, the hygienist palpates a pulse at the anterior border of the masseter
muscle. Which artery is being palpated, and what is its parent vessel?
A. Facial artery; branch of the external carotid artery *[CORRECT]*
B. Superficial temporal artery; branch of the internal carotid artery
C. Maxillary artery; branch of the external carotid artery
D. Lingual artery; branch of the internal carotid artery
Correct Answer: A
Rationale: The facial artery crosses the inferior border of the mandible at the anterior border of the masseter muscle,
where its pulse is clinically palpable. It is a branch of the external carotid artery and supplies the face, submandibular
gland, and tonsils. HESI Dental Hygiene standards require hygienists to identify vascular landmarks to avoid inadvertent
intravascular injection during local anesthesia. Option B incorrectly identifies the parent vessel; the superficial temporal
artery is a terminal branch of the external carotid, not the internal carotid. Option C correctly identifies the parent vessel
but the maxillary artery is not palpable at the masseter border. Option D is incorrect because the lingual artery supplies the
tongue and does not cross the mandibular border.
Q6. Which of the following muscles of mastication is primarily responsible for protrusion of the mandible and
depression (opening) of the jaw during functional movement?
A. Masseter
B. Medial pterygoid
C. Lateral pterygoid *[CORRECT]*
D. Temporalis
Correct Answer: C
Page 4
