AADC/ADC Complete 2026 New
Update Exam Questions and Verified
Answers with Rationale – 100%
Guaranteed Pass
Question 1
A 54-year-old man presents with a painless white patch on the
lateral border of the tongue that has been present for 5 weeks.
The lesion cannot be wiped away and persists after eliminating
local irritants. What is the most appropriate next step?
A. Prescribe topical nystatin
B. Observe for another 3 months
C. Arrange biopsy or urgent referral for definitive diagnosis
D. Prescribe chlorhexidine mouthwash
� Correct Answer: C. Arrange biopsy or urgent referral for
definitive diagnosis
� Rationale:
Any persistent white lesion that cannot be wiped away and
,remains for more than two weeks without an obvious cause
should be evaluated to exclude epithelial dysplasia or oral
squamous cell carcinoma.
� Question 2
A patient experiences severe, spontaneous pain that lingers for
several minutes after a cold stimulus is removed. Percussion
testing is negative, and there is no periapical radiolucency. What
is the most likely pulpal diagnosis?
A. Normal pulp
B. Reversible pulpitis
C. Symptomatic irreversible pulpitis
D. Pulp necrosis
� Correct Answer: C. Symptomatic irreversible pulpitis
� Rationale:
Lingering thermal pain indicates irreversible inflammation of
the pulp. Periapical tissues may still appear normal early in the
disease process.
� Question 3
,Which microorganism is most strongly associated with localized
aggressive periodontitis?
A. Streptococcus mutans
B. Aggregatibacter actinomycetemcomitans
C. Candida albicans
D. Lactobacillus acidophilus
� Correct Answer: B. Aggregatibacter
actinomycetemcomitans
� Rationale:
A. actinomycetemcomitans has long been associated with
localized aggressive periodontitis, particularly in adolescents
and young adults.
� Question 4
A 10-year-old child avulses a permanent maxillary central
incisor during sport. The tooth is immediately placed in cold
milk and arrives at the dental clinic within 30 minutes. Which
factor offers the best prognosis?
A. Storage in dry tissue
B. Immediate replantation or storage in an appropriate medium
with short extraoral time
, C. Delayed replantation after 6 hours
D. Cleaning the root surface with a toothbrush
� Correct Answer: B. Immediate replantation or storage in
an appropriate medium with short extraoral time
� Rationale:
Prompt replantation or storage in a suitable medium (such as
milk) helps preserve periodontal ligament cell viability and
improves prognosis.
� Question 5
Which imaging modality provides the most accurate three-
dimensional assessment for implant treatment planning when
clinically indicated?
A. Bitewing radiographs
B. Periapical radiographs
C. Cone-beam computed tomography (CBCT)
D. Occlusal radiograph
� Correct Answer: C. Cone-beam computed tomography
(CBCT)
Update Exam Questions and Verified
Answers with Rationale – 100%
Guaranteed Pass
Question 1
A 54-year-old man presents with a painless white patch on the
lateral border of the tongue that has been present for 5 weeks.
The lesion cannot be wiped away and persists after eliminating
local irritants. What is the most appropriate next step?
A. Prescribe topical nystatin
B. Observe for another 3 months
C. Arrange biopsy or urgent referral for definitive diagnosis
D. Prescribe chlorhexidine mouthwash
� Correct Answer: C. Arrange biopsy or urgent referral for
definitive diagnosis
� Rationale:
Any persistent white lesion that cannot be wiped away and
,remains for more than two weeks without an obvious cause
should be evaluated to exclude epithelial dysplasia or oral
squamous cell carcinoma.
� Question 2
A patient experiences severe, spontaneous pain that lingers for
several minutes after a cold stimulus is removed. Percussion
testing is negative, and there is no periapical radiolucency. What
is the most likely pulpal diagnosis?
A. Normal pulp
B. Reversible pulpitis
C. Symptomatic irreversible pulpitis
D. Pulp necrosis
� Correct Answer: C. Symptomatic irreversible pulpitis
� Rationale:
Lingering thermal pain indicates irreversible inflammation of
the pulp. Periapical tissues may still appear normal early in the
disease process.
� Question 3
,Which microorganism is most strongly associated with localized
aggressive periodontitis?
A. Streptococcus mutans
B. Aggregatibacter actinomycetemcomitans
C. Candida albicans
D. Lactobacillus acidophilus
� Correct Answer: B. Aggregatibacter
actinomycetemcomitans
� Rationale:
A. actinomycetemcomitans has long been associated with
localized aggressive periodontitis, particularly in adolescents
and young adults.
� Question 4
A 10-year-old child avulses a permanent maxillary central
incisor during sport. The tooth is immediately placed in cold
milk and arrives at the dental clinic within 30 minutes. Which
factor offers the best prognosis?
A. Storage in dry tissue
B. Immediate replantation or storage in an appropriate medium
with short extraoral time
, C. Delayed replantation after 6 hours
D. Cleaning the root surface with a toothbrush
� Correct Answer: B. Immediate replantation or storage in
an appropriate medium with short extraoral time
� Rationale:
Prompt replantation or storage in a suitable medium (such as
milk) helps preserve periodontal ligament cell viability and
improves prognosis.
� Question 5
Which imaging modality provides the most accurate three-
dimensional assessment for implant treatment planning when
clinically indicated?
A. Bitewing radiographs
B. Periapical radiographs
C. Cone-beam computed tomography (CBCT)
D. Occlusal radiograph
� Correct Answer: C. Cone-beam computed tomography
(CBCT)
