NDEB EXAM 2026/2027 NDEB SOLVED
400+ COMPREHENSIVE QUESTIONS AND
ACCURATE ANSWERS||GRADED A+
A "broken stress" or "non-rigid" connector is indicated for a fixed partial denture when
A. the retainers can be so prepared as to have equal retentive qualities.
B. 2 or 3 teeth are to be replaced.
C. constructing a mandibular fixed prosthesis.
D. the abutments cannot be prepared in parallel without excessive removal of tooth structure.
Accurate Answer: D.
On the basis of "Socransky's Modifications of Koch's Postulates", the potential pathogens in
periodontal disease must possess all of the following EXCEPT
A. be associated with disease, as evidenced by increases in the number of organisms at
diseased sites.
B. be eliminated or decreased in sites that demonstrate clinical resolution of disease with
treatment.
C. demonstrate a host response, in the form of alteration in the host cellular, not humoral,
immune response.
D. be capable of causing disease in experimental animal models.
E. demonstrate virulence factors responsible for enabling the organisms to cause periodontal
tissue destruction.
Accurate Answer: C.
,Benzodiazepines
A. may produce hypertension.
B. are contraindicated in a patient with acute open angle glaucoma.
C. may produce muscular weakness.
D. may cause insomnia.
Accurate Answer: C.
To decrease abutment tooth sensitivity, a fixed bridge may be temporarily seated using
A. polycarboxylate cement.
B. acrylic resin cement.
C. zinc oxide eugenol cement.
D. glass ionomer cement.
Accurate Answer: C.
The genial tubercles are best visualized on which type of radiograph?
A. Occlusal.
B. Periapical.
C. Bitewing.
D. Panoramic.
Accurate Answer: A.
For the extraction of maxillary teeth, the most appropriate position of the maxillary occlusal
plane is
,A. parallel to the floor.
B. 20º to the floor.
C. 60º to the floor.
D. 90º to the floor.
Accurate Answer: C.
The management of syncope following local anesthetic administration does NOT include
A. elevating the legs.
B. placing in a supine position.
C. administering oxygen.
D. ensuring the airway is open.
E. administering epinephrine.
Accurate Answer: E.
To initiate caries, bacterial plaque pH must reach
A. 5.4.
B. 5.9.
C. 6.4.
D. 6.9.
Accurate Answer: A.
Which of the following variables has the greatest effect on bond strength?
A. Moisture control.
B. Size of the bracket base.
, C. Type of acid etch.
D. Composition of the resin cement.
E. Patient oral hygiene.
Accurate Answer: A.
Most bone loss following the placement of dental implants occurs at
A. 0 - 1 year.
B. 2 - 4 years.
C. 5 - 7 years.
D. 10 - 12 years.
Accurate Answer: A.
A patient presents with hypodontia, conical teeth, fine, scanty, fair hair, and an intolerance to
hot weather. The most likely diagnosis is
A. achondroplasia.
B. malignant hyperthermia.
C. ectodermal dysplasia.
D. cystic fibrosis.
Accurate Answer: C.
Which of the following can be associated with an impacted tooth?
A. Periapical osseous dysplasia (periapical cemento-osseous dysplasia).
B. Peripheral odontogenic fibroma.
400+ COMPREHENSIVE QUESTIONS AND
ACCURATE ANSWERS||GRADED A+
A "broken stress" or "non-rigid" connector is indicated for a fixed partial denture when
A. the retainers can be so prepared as to have equal retentive qualities.
B. 2 or 3 teeth are to be replaced.
C. constructing a mandibular fixed prosthesis.
D. the abutments cannot be prepared in parallel without excessive removal of tooth structure.
Accurate Answer: D.
On the basis of "Socransky's Modifications of Koch's Postulates", the potential pathogens in
periodontal disease must possess all of the following EXCEPT
A. be associated with disease, as evidenced by increases in the number of organisms at
diseased sites.
B. be eliminated or decreased in sites that demonstrate clinical resolution of disease with
treatment.
C. demonstrate a host response, in the form of alteration in the host cellular, not humoral,
immune response.
D. be capable of causing disease in experimental animal models.
E. demonstrate virulence factors responsible for enabling the organisms to cause periodontal
tissue destruction.
Accurate Answer: C.
,Benzodiazepines
A. may produce hypertension.
B. are contraindicated in a patient with acute open angle glaucoma.
C. may produce muscular weakness.
D. may cause insomnia.
Accurate Answer: C.
To decrease abutment tooth sensitivity, a fixed bridge may be temporarily seated using
A. polycarboxylate cement.
B. acrylic resin cement.
C. zinc oxide eugenol cement.
D. glass ionomer cement.
Accurate Answer: C.
The genial tubercles are best visualized on which type of radiograph?
A. Occlusal.
B. Periapical.
C. Bitewing.
D. Panoramic.
Accurate Answer: A.
For the extraction of maxillary teeth, the most appropriate position of the maxillary occlusal
plane is
,A. parallel to the floor.
B. 20º to the floor.
C. 60º to the floor.
D. 90º to the floor.
Accurate Answer: C.
The management of syncope following local anesthetic administration does NOT include
A. elevating the legs.
B. placing in a supine position.
C. administering oxygen.
D. ensuring the airway is open.
E. administering epinephrine.
Accurate Answer: E.
To initiate caries, bacterial plaque pH must reach
A. 5.4.
B. 5.9.
C. 6.4.
D. 6.9.
Accurate Answer: A.
Which of the following variables has the greatest effect on bond strength?
A. Moisture control.
B. Size of the bracket base.
, C. Type of acid etch.
D. Composition of the resin cement.
E. Patient oral hygiene.
Accurate Answer: A.
Most bone loss following the placement of dental implants occurs at
A. 0 - 1 year.
B. 2 - 4 years.
C. 5 - 7 years.
D. 10 - 12 years.
Accurate Answer: A.
A patient presents with hypodontia, conical teeth, fine, scanty, fair hair, and an intolerance to
hot weather. The most likely diagnosis is
A. achondroplasia.
B. malignant hyperthermia.
C. ectodermal dysplasia.
D. cystic fibrosis.
Accurate Answer: C.
Which of the following can be associated with an impacted tooth?
A. Periapical osseous dysplasia (periapical cemento-osseous dysplasia).
B. Peripheral odontogenic fibroma.
