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# WASHINGTON DENTURIST LICENSING EXAM
## COMPREHENSIVE PRACTICE QUESTION
BANK
### 2026/2027 EDITION | 250+ ORIGINAL
QUESTIONS WITH DETAILED RATIONALES
## Table of Contents
| Section | Content Area | Questions |
|---------|--------------|-----------|
| I | Patient Assessment and Treatment Planning | 1-35 |
| II | Anatomy and Physiology of the Oral Cavity | 36-70 |
| III | Complete Denture Fabrication | 71-120 |
| IV | Partial Denture Fabrication | 121-160 |
| V | Denture Repair, Reline, and Rebase | 161-195 |
| VI | Infection Control and Sterilization | 196-220 |
| VII | Ethics, Jurisprudence, and Practice Management | 221-250+ |
---
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## Section I: Patient Assessment and Treatment Planning
### Questions 1-35
**Question 1**
A 68-year-old patient presents for a complete denture evaluation. Medical history
reveals type 2 diabetes mellitus diagnosed 10 years ago, currently managed with
metformin. Which consideration is MOST critical for the denturist regarding this
patient's prosthodontic prognosis?
A) The patient may require more frequent recall appointments due to increased risk
of denture stomatitis
B) Metformin interferes with acrylic polymerization, requiring special processing
C) Diabetes has no significant impact on denture success
D) The patient should be referred to a dentist for extraction of all remaining teeth
before proceeding
**Answer: A**
**Rationale:** Diabetes mellitus is associated with reduced salivary flow,
impaired wound healing, and increased susceptibility to candidal infections. These
factors compromise denture retention and increase the risk of denture stomatitis.
More frequent recall and reinforcement of hygiene protocols are essential.
Metformin does not affect acrylic polymerization, and referral for extractions is not
automatically indicated without assessment of remaining dentition.
---
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**Question 2**
A 72-year-old patient with severe mandibular ridge resorption complains that her
current denture "floats" during chewing. What is the MOST appropriate initial
assessment step?
A) Immediately schedule a reline appointment
B) Assess the neutral zone to evaluate muscle balance
C) Recommend adhesive use only
D) Fabricate a new denture with a different tooth mold
**Answer: B**
**Rationale:** In severely resorbed ridges, stability depends on the balance
between tongue and buccinator/lip forces—the neutral zone. Assessing this zone
should precede treatment decisions. A reline without neutral zone evaluation may
not address the underlying instability. Adhesives provide temporary relief but do
not correct the fundamental issue.
---
**Question 3**
According to Washington State law (RCW 18.30.010 and WAC 246-812-159), how
many clock hours of continuing education must a denturist complete ANNUALLY
to renew a license?
A) 10 hours
B) 15 hours
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C) 20 hours
D) 30 hours
**Answer: B**
**Rationale:** WAC 246-812-159 requires licensed denturists to complete a
minimum of 15 clock hours of continuing competency every year as part of annual
license renewal. This represents a change from previous biennial requirements. The
jurisprudence examination must also be completed annually.
---
**Question 4**
A patient presents with a burning sensation under the maxillary denture
accompanied by erythematous mucosa. The most likely diagnosis is:
A) Herpetic stomatitis
B) Denture stomatitis (chronic atrophic candidiasis)
C) Factitial injury
D) Lichen planus
**Answer: B**
**Rationale:** Denture stomatitis is the most common inflammatory condition
beneath maxillary dentures. It is associated with Candida albicans colonization on
the denture surface. Risk factors include poor denture hygiene, continuous wear,
# WASHINGTON DENTURIST LICENSING EXAM
## COMPREHENSIVE PRACTICE QUESTION
BANK
### 2026/2027 EDITION | 250+ ORIGINAL
QUESTIONS WITH DETAILED RATIONALES
## Table of Contents
| Section | Content Area | Questions |
|---------|--------------|-----------|
| I | Patient Assessment and Treatment Planning | 1-35 |
| II | Anatomy and Physiology of the Oral Cavity | 36-70 |
| III | Complete Denture Fabrication | 71-120 |
| IV | Partial Denture Fabrication | 121-160 |
| V | Denture Repair, Reline, and Rebase | 161-195 |
| VI | Infection Control and Sterilization | 196-220 |
| VII | Ethics, Jurisprudence, and Practice Management | 221-250+ |
---
,2|Page
## Section I: Patient Assessment and Treatment Planning
### Questions 1-35
**Question 1**
A 68-year-old patient presents for a complete denture evaluation. Medical history
reveals type 2 diabetes mellitus diagnosed 10 years ago, currently managed with
metformin. Which consideration is MOST critical for the denturist regarding this
patient's prosthodontic prognosis?
A) The patient may require more frequent recall appointments due to increased risk
of denture stomatitis
B) Metformin interferes with acrylic polymerization, requiring special processing
C) Diabetes has no significant impact on denture success
D) The patient should be referred to a dentist for extraction of all remaining teeth
before proceeding
**Answer: A**
**Rationale:** Diabetes mellitus is associated with reduced salivary flow,
impaired wound healing, and increased susceptibility to candidal infections. These
factors compromise denture retention and increase the risk of denture stomatitis.
More frequent recall and reinforcement of hygiene protocols are essential.
Metformin does not affect acrylic polymerization, and referral for extractions is not
automatically indicated without assessment of remaining dentition.
---
,3|Page
**Question 2**
A 72-year-old patient with severe mandibular ridge resorption complains that her
current denture "floats" during chewing. What is the MOST appropriate initial
assessment step?
A) Immediately schedule a reline appointment
B) Assess the neutral zone to evaluate muscle balance
C) Recommend adhesive use only
D) Fabricate a new denture with a different tooth mold
**Answer: B**
**Rationale:** In severely resorbed ridges, stability depends on the balance
between tongue and buccinator/lip forces—the neutral zone. Assessing this zone
should precede treatment decisions. A reline without neutral zone evaluation may
not address the underlying instability. Adhesives provide temporary relief but do
not correct the fundamental issue.
---
**Question 3**
According to Washington State law (RCW 18.30.010 and WAC 246-812-159), how
many clock hours of continuing education must a denturist complete ANNUALLY
to renew a license?
A) 10 hours
B) 15 hours
, 4|Page
C) 20 hours
D) 30 hours
**Answer: B**
**Rationale:** WAC 246-812-159 requires licensed denturists to complete a
minimum of 15 clock hours of continuing competency every year as part of annual
license renewal. This represents a change from previous biennial requirements. The
jurisprudence examination must also be completed annually.
---
**Question 4**
A patient presents with a burning sensation under the maxillary denture
accompanied by erythematous mucosa. The most likely diagnosis is:
A) Herpetic stomatitis
B) Denture stomatitis (chronic atrophic candidiasis)
C) Factitial injury
D) Lichen planus
**Answer: B**
**Rationale:** Denture stomatitis is the most common inflammatory condition
beneath maxillary dentures. It is associated with Candida albicans colonization on
the denture surface. Risk factors include poor denture hygiene, continuous wear,
