ENDO OSCE 2026 STUDY GUIDE QUESTIONS AND
SOLUTIONS GRADED A+
✔✔A tooth may traumatically suffer permanent loss of sensation to
stimulus/provocation, but retain vitality. Subsequent signs/symptoms would demand that
RCT be initiated in this situation:
A. Radiolucency changes in periapical areas
B. Rapid excessive mineralization of pulp system
C. Progressive discoloration of clinical crown
D. Tenderness to palpation - ✔✔A. Radiolucency changes in periapical areas
C. Progressive discoloration of clinical crown
D. Tenderness to palpation
✔✔During a clinical exam of recently traumatized area, what should palpation evaluate?
A. Pulp vitality
B. Possible alveolar or root fracture
C. Periapical extension of disease
D. Evidence of possible clinical crown fracture
E. Periodontal pathology - ✔✔B. Possible alveolar or root fracture
✔✔Your 8yo patient experiences trauma to maxillary central incisor. One day later,
tooth fails to respond to EPT/thermal tests. Dictates:
A. Sit back and wait for re-evaluation
B. Pulpectomy
C. Pulpotomy
D. Extraction - ✔✔A. Sit back and wait for re-evaluation
✔✔What most likely causes mineralization to complete obliteration of pulp?
A. Deep restoration in which base not used
B. Age
C. A blow to the tooth in which the pulp was injured, but not devitalized - ✔✔C. A blow
to the tooth in which the pulp was injured, but not devitalized
✔✔Productive inflammation of exposed pulp characterized by the development of
granulation tissue and, at times, epithelium, is known as
A. Pulp polyp, acute condition
B. Pulp cyst, acute condition
C. Pulp poly, precancerous condition
D. Pulp cyst that drains profusely
E. Pulp polyp, chronic condition - ✔✔E. Pulp polyp, chronic condition
✔✔Resorption on root surface that that is usually populated by granule atoms tissue
and greatly affects the prognosis for tooth retention?
A. Surface resorption
B. Internal resorption
, C. Inflammatory resorption
D. Replacement resorption (same thing as ankylosis)
E. External resorption - ✔✔C. Inflammatory resorption
D. Replacement resorption (same thing as ankylosis)
✔✔What characteristics does a pulp polyp and early nonperforating internal resorption
have in common?
A. Dental history of trauma
B. History of spontaneous referred pain to the opposing arch
C. Lingering pain to thermal stimulation
D. Usually asymptomatic
E. A new restoration - ✔✔D. Usually asymptomatic
✔✔After allusion and replantation, which type of resorption is self limiting, no deeper
than 0.02, doesn't affect prognosis of tooth
A. Surface resorption
B. Internal resorption
C. Inflammatory resorption
D. Replacement resorption
E. External resorption - ✔✔A. Surface resorption
✔✔Which may contribute to root resorption?
A. Orthodontic therapy
B. Impaction pressure
C. Periapical disease
D. Endodontic therapy
E. Neoplastic disease - ✔✔A. Orthodontic therapy
B. Impaction pressure
C. Periapical disease
E. Neoplastic disease
✔✔The single most likely reason an individual can remain numb after a local injection is
A. Anesthetic toxicity
B. Pt sensitivity
C. 3% anesthetic solutions
D. Direct damage to the nerve by the needle
E. Intrafascicular hematoma - ✔✔E. Intrafascicular hematoma, break a blood vessel —
bleeds
✔✔Which of the following conditions is indicated to attempt vertical root extrusion?
A. External resorption in cervical third of root
B. Mechanical perforation of root in cervical third
C. Horizontal root fracture of the paella third
D. A subgingival oblique fracture of the clinical crown
SOLUTIONS GRADED A+
✔✔A tooth may traumatically suffer permanent loss of sensation to
stimulus/provocation, but retain vitality. Subsequent signs/symptoms would demand that
RCT be initiated in this situation:
A. Radiolucency changes in periapical areas
B. Rapid excessive mineralization of pulp system
C. Progressive discoloration of clinical crown
D. Tenderness to palpation - ✔✔A. Radiolucency changes in periapical areas
C. Progressive discoloration of clinical crown
D. Tenderness to palpation
✔✔During a clinical exam of recently traumatized area, what should palpation evaluate?
A. Pulp vitality
B. Possible alveolar or root fracture
C. Periapical extension of disease
D. Evidence of possible clinical crown fracture
E. Periodontal pathology - ✔✔B. Possible alveolar or root fracture
✔✔Your 8yo patient experiences trauma to maxillary central incisor. One day later,
tooth fails to respond to EPT/thermal tests. Dictates:
A. Sit back and wait for re-evaluation
B. Pulpectomy
C. Pulpotomy
D. Extraction - ✔✔A. Sit back and wait for re-evaluation
✔✔What most likely causes mineralization to complete obliteration of pulp?
A. Deep restoration in which base not used
B. Age
C. A blow to the tooth in which the pulp was injured, but not devitalized - ✔✔C. A blow
to the tooth in which the pulp was injured, but not devitalized
✔✔Productive inflammation of exposed pulp characterized by the development of
granulation tissue and, at times, epithelium, is known as
A. Pulp polyp, acute condition
B. Pulp cyst, acute condition
C. Pulp poly, precancerous condition
D. Pulp cyst that drains profusely
E. Pulp polyp, chronic condition - ✔✔E. Pulp polyp, chronic condition
✔✔Resorption on root surface that that is usually populated by granule atoms tissue
and greatly affects the prognosis for tooth retention?
A. Surface resorption
B. Internal resorption
, C. Inflammatory resorption
D. Replacement resorption (same thing as ankylosis)
E. External resorption - ✔✔C. Inflammatory resorption
D. Replacement resorption (same thing as ankylosis)
✔✔What characteristics does a pulp polyp and early nonperforating internal resorption
have in common?
A. Dental history of trauma
B. History of spontaneous referred pain to the opposing arch
C. Lingering pain to thermal stimulation
D. Usually asymptomatic
E. A new restoration - ✔✔D. Usually asymptomatic
✔✔After allusion and replantation, which type of resorption is self limiting, no deeper
than 0.02, doesn't affect prognosis of tooth
A. Surface resorption
B. Internal resorption
C. Inflammatory resorption
D. Replacement resorption
E. External resorption - ✔✔A. Surface resorption
✔✔Which may contribute to root resorption?
A. Orthodontic therapy
B. Impaction pressure
C. Periapical disease
D. Endodontic therapy
E. Neoplastic disease - ✔✔A. Orthodontic therapy
B. Impaction pressure
C. Periapical disease
E. Neoplastic disease
✔✔The single most likely reason an individual can remain numb after a local injection is
A. Anesthetic toxicity
B. Pt sensitivity
C. 3% anesthetic solutions
D. Direct damage to the nerve by the needle
E. Intrafascicular hematoma - ✔✔E. Intrafascicular hematoma, break a blood vessel —
bleeds
✔✔Which of the following conditions is indicated to attempt vertical root extrusion?
A. External resorption in cervical third of root
B. Mechanical perforation of root in cervical third
C. Horizontal root fracture of the paella third
D. A subgingival oblique fracture of the clinical crown
