Oregon Dental Hygiene Licensure Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. Which regulatory body is primarily responsible for regulating the
practice of dental hygiene in Oregon?
A. Oregon Medical Board
B. Oregon Board of Dentistry
C. Oregon State Board of Pharmacy
D. Oregon Health Authority
Rationale: The Oregon Board of Dentistry regulates dentists, dental
hygienists, and dental assistants and establishes requirements governing
the practice of dentistry and dental hygiene in Oregon.
2. Which educational pathway is generally required for an applicant
seeking initial dental hygienist licensure?
A. Completion of an approved dental hygiene education program
B. Completion of a dental assisting course only
C. Completion of a medical school program
D. Completion of a pharmacy technician program
Rationale: Dental hygienist applicants generally must complete an
approved dental hygiene education program that provides the academic
and clinical preparation necessary for professional practice.
, 3. Which examination is designed specifically to assess foundational
knowledge required for dental hygiene practice?
A. Dental hygiene examination
B. Medical school entrance examination
C. Pharmacy jurisprudence examination
D. Nursing assistant examination
Rationale: Dental hygiene examinations assess knowledge and skills
relevant to preventive oral healthcare, periodontal therapy, radiography,
patient assessment, and professional practice.
4. Which activity is a central responsibility of a dental hygienist?
A. Preventive oral healthcare and periodontal therapy
B. Performing major oral and maxillofacial surgery independently
C. Diagnosing systemic diseases as a physician
D. Prescribing controlled medications without authorization
Rationale: Dental hygienists provide preventive oral healthcare and clinical
services such as periodontal assessment, dental hygiene treatment, patient
education, and other legally authorized functions.
5. During a periodontal examination, which measurement is obtained by
inserting a periodontal probe into the gingival sulcus?
A. Pocket depth
B. Tooth shade
C. Occlusal vertical dimension
D. Pulp chamber length
Rationale: Periodontal probing measures the distance from the gingival
margin to the base of the sulcus or periodontal pocket and is essential for
periodontal assessment.
6. Which finding is most consistent with healthy periodontal tissue?
A. Persistent spontaneous bleeding
B. Minimal inflammation with no pathologic attachment loss
, C. Deep periodontal pockets with suppuration
D. Progressive tooth mobility from bone destruction
Rationale: Healthy periodontal tissues generally exhibit minimal
inflammation, stable attachment, and absence of pathologic periodontal
pocketing or progressive attachment loss.
7. What is the primary purpose of periodontal probing?
A. Assess periodontal pocket depth and attachment status
B. Determine tooth color
C. Measure blood glucose
D. Identify dental implant alloy composition
Rationale: Periodontal probing provides information about sulcus depth,
periodontal pocketing, gingival recession, and clinical attachment status.
8. Which instrument is specifically designed for periodontal probing?
A. Periodontal probe
B. Amalgam carrier
C. Composite condenser
D. Excavator
Rationale: A periodontal probe has calibrated markings that allow the
clinician to measure periodontal pocket depths and evaluate periodontal
tissues.
9. Which clinical finding is most characteristic of gingivitis?
A. Gingival inflammation without attachment loss
B. Complete loss of alveolar bone
C. Pulpal necrosis
D. Root fracture
Rationale: Gingivitis is an inflammatory condition of the gingiva without
the clinical attachment loss that characterizes periodontitis.
10. Which factor is the primary initiating cause of plaque-induced
gingivitis?
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. Which regulatory body is primarily responsible for regulating the
practice of dental hygiene in Oregon?
A. Oregon Medical Board
B. Oregon Board of Dentistry
C. Oregon State Board of Pharmacy
D. Oregon Health Authority
Rationale: The Oregon Board of Dentistry regulates dentists, dental
hygienists, and dental assistants and establishes requirements governing
the practice of dentistry and dental hygiene in Oregon.
2. Which educational pathway is generally required for an applicant
seeking initial dental hygienist licensure?
A. Completion of an approved dental hygiene education program
B. Completion of a dental assisting course only
C. Completion of a medical school program
D. Completion of a pharmacy technician program
Rationale: Dental hygienist applicants generally must complete an
approved dental hygiene education program that provides the academic
and clinical preparation necessary for professional practice.
, 3. Which examination is designed specifically to assess foundational
knowledge required for dental hygiene practice?
A. Dental hygiene examination
B. Medical school entrance examination
C. Pharmacy jurisprudence examination
D. Nursing assistant examination
Rationale: Dental hygiene examinations assess knowledge and skills
relevant to preventive oral healthcare, periodontal therapy, radiography,
patient assessment, and professional practice.
4. Which activity is a central responsibility of a dental hygienist?
A. Preventive oral healthcare and periodontal therapy
B. Performing major oral and maxillofacial surgery independently
C. Diagnosing systemic diseases as a physician
D. Prescribing controlled medications without authorization
Rationale: Dental hygienists provide preventive oral healthcare and clinical
services such as periodontal assessment, dental hygiene treatment, patient
education, and other legally authorized functions.
5. During a periodontal examination, which measurement is obtained by
inserting a periodontal probe into the gingival sulcus?
A. Pocket depth
B. Tooth shade
C. Occlusal vertical dimension
D. Pulp chamber length
Rationale: Periodontal probing measures the distance from the gingival
margin to the base of the sulcus or periodontal pocket and is essential for
periodontal assessment.
6. Which finding is most consistent with healthy periodontal tissue?
A. Persistent spontaneous bleeding
B. Minimal inflammation with no pathologic attachment loss
, C. Deep periodontal pockets with suppuration
D. Progressive tooth mobility from bone destruction
Rationale: Healthy periodontal tissues generally exhibit minimal
inflammation, stable attachment, and absence of pathologic periodontal
pocketing or progressive attachment loss.
7. What is the primary purpose of periodontal probing?
A. Assess periodontal pocket depth and attachment status
B. Determine tooth color
C. Measure blood glucose
D. Identify dental implant alloy composition
Rationale: Periodontal probing provides information about sulcus depth,
periodontal pocketing, gingival recession, and clinical attachment status.
8. Which instrument is specifically designed for periodontal probing?
A. Periodontal probe
B. Amalgam carrier
C. Composite condenser
D. Excavator
Rationale: A periodontal probe has calibrated markings that allow the
clinician to measure periodontal pocket depths and evaluate periodontal
tissues.
9. Which clinical finding is most characteristic of gingivitis?
A. Gingival inflammation without attachment loss
B. Complete loss of alveolar bone
C. Pulpal necrosis
D. Root fracture
Rationale: Gingivitis is an inflammatory condition of the gingiva without
the clinical attachment loss that characterizes periodontitis.
10. Which factor is the primary initiating cause of plaque-induced
gingivitis?
