El Maestro questions and
answers all correct
Correct Answer:
b. Irreversible pulpitis and mandibular Correct Answer: If you have pain, what would be the hardest to
anesthetize?
a. Irreversible pulpitis and maxillary
b. Irreversible pulpitis and mandibular
c. Necrotic pulp and maxillary
d. Necrotic pulp and mandibular
Vitality
EPT tests responsiveness, doesn't show health of pulp Correct Answer: How do you differentiate
between an endo/perio lesion? EPT
Anaerobes Correct Answer: Chronic endodontic lesion has what type of bacteria?
b. Percussion Correct Answer: How do you test a tooth to differentiate between chronic perio and
supperative perio?
a. Cold test
b. Percussion
c. EPT
Incision and drainage before RCT Correct Answer: Periapical abscess, what do you do?
Percussion
- Perio lesion are sensitive to lateral percussion. Correct Answer: Test performed to differentiate endo
vs. perio lesions?
B. Pain to lateral percussion with a wide sulcular pocket Correct Answer: Which of the following
conditions indicates that a periodontal, rather than an endodontic problem, exists?
A. Acute pain to percussion with no swelling
B. Pain to lateral percussion with a wide sulcular pocket
C. A deep narrow sulcular pocket to the apex with exudate
D. Pain to palpation of the buccal mucosa near the tooth ape
,a. pulp testing (vitality tests) Correct Answer: Lateral periodontal abscess is best differentiated from the
acute apical abscess by?
a. pulp testing (vitality tests)
b. radiographic appearance
c. probing patterns
d. percussion
e. palpation
- sensitive to percussion, cold Correct Answer: Best way to diagnose acute periradicular periodontitis?
Localized chronic fluctuant in palpation
Localized chronic hard in palpation (if hard there is no pus) Correct Answer: When do you puncture an
abscess?
a. Both statements are true Correct Answer: There usually is no lesion apparent radiographically in
acute apical periodontitis. However, histologically bone destruction has been noted.
a. Both statements are true
b. Both statements are false.
c. First statement is true, second is false.
d. First statement is false, second is true.
b. Cannot diagnose based on information provided. Correct Answer: Based solely on the sharp transient
response of pulp to hot stimuli, what is the periradicular diagnosis?
a. Acute apical periodontitis
b. Cannot diagnose based on information provided.
c. Acute Apical abscess
d. Irreversible pulpitis
c. Pulpal necrosis and chronic periradicular periodontitis. Correct Answer: What complete endodontic
diagnosis could be completely asymptomatic but should require endodontic therapy?
a. Pulpal necrosis and acute periradicular periodontitis
b. Normal pulp and acute periradicular periodontitis.
c. Pulpal necrosis and chronic periradicular periodontitis.
d. Normal pulp and normal periapex
Correct Answer:
Can disturb ameloblastic layer of permanent successor or spread infection Correct Answer: Primary
tooth got necrosis, and the inflammation went down through furcation and affects permanent tooth.
What is it going to cause to permanent tooth?
it causes irritation, leading to resorption in primary teeth. Correct Answer: Calcium hydroxide is
contraindicated in pulpotomy in a child (primary teeth) because?
,percussion (most reliable) Correct Answer: The best method to test newly erupted primary teeth?
Electric pulp test
- On primary teeth you don't want to use EPT b/c thin enamel creates false results & after trauma, you
don't want to use electronic pulp tester. Correct Answer: Least reliable test on primary teeth?
A. pulpectomy and apexification. (bc >1 hr therefore not recent and large) Correct Answer: A 7-year-old
patient fractured the right central incisor 3 hours ago. A clinical examination reveals a 2-mm exposure of
a "bleeding pulp." The treatment-of-choice is
A. pulpectomy and apexification
B. pulpotomy with calcium hydroxide.
C. direct pulp cap with calcium hydroxide.
D. one-appointment root canal treatment.
1. Apexification (Non vital)
2. Apexogenesis (vital) Correct Answer: Patient (6 yo), the treatment of choice for a necrotic pulp on
permanent first molar would be:
1. Apexification
2. Apexogenesis
3. Root Canal Treatment
Splint the tooth is for pt comfort
- Avulsion: 7-10 days non-rigid/flexibile splint, antibiotics
- Horizontal root fractures: Rigid splint, 3 months
- Extrusion: 2-3 weeks splint Correct Answer:
a. external resorption Correct Answer: Reason for failure of replantation of avulsed tooth:
a. external resorption
b. internal resorption
7-10 days Correct Answer: How long do you splint after tooth has been avulsed?
2% Sodium fluoride for 20 minutes. Correct Answer: Avulsed tooth should be treated with what to
reduce root resorption?
No Correct Answer: CaOH tx for an avulsed tooth?
Yes or No?
b. intrusion Correct Answer: Which is more damaging to the PDL?
a. extrusion
b. intrusion
c. lateral
d. luxation
, e. avulsion
disruption of nerves to tooth Correct Answer: Luxated tooth, negative EPT, why?
bind with Ca+ and carry it out of the canal. It removes smear layer/inorganic layer in dentin to expose
tubules for penetration of endo sealer & exposing bacteria.
Ex. EDTA 17% Correct Answer: Endodontic chelating agents
Dissolve necrotic tissue
-not a chelating agent Correct Answer: Primary purpose of sodium hypochlorite?
Pink tooth Correct Answer: Internal resorption left untreated can lead to?
replacement resorption Correct Answer: When a tooth is ankylosed, what type of resorption?
3. Allows the file to be centered in canal Correct Answer: What is the NOT an advantage of stainless
steel files?
1. More flexible
2. Less chance for breaking
3. Allows the file to be centered in canal
4. Aids depth penetration in the canal
2. perforation in internal resorption Correct Answer: Which case has the best prognosis?
1. perforation in extneral resorption
2. perforation in internal resorption
3. extruded gutta percha
• Blood products in the dentinal tubules Correct Answer: Cause of grey tooth
• Blood products in the dentinal tubules
• internal resorption
• external resorption
• calcified canal
PMN cells Correct Answer: Most common cell in necrotic pulp?
2. Bacterial infection Correct Answer: Reason for failed endo?
1. Seal 2mm away from apex
2. Bacterial infection
3. RCT sealer beyond apex
Mandibular posterior teeth Correct Answer: Which teeth are more likely to have vertical fractures?
answers all correct
Correct Answer:
b. Irreversible pulpitis and mandibular Correct Answer: If you have pain, what would be the hardest to
anesthetize?
a. Irreversible pulpitis and maxillary
b. Irreversible pulpitis and mandibular
c. Necrotic pulp and maxillary
d. Necrotic pulp and mandibular
Vitality
EPT tests responsiveness, doesn't show health of pulp Correct Answer: How do you differentiate
between an endo/perio lesion? EPT
Anaerobes Correct Answer: Chronic endodontic lesion has what type of bacteria?
b. Percussion Correct Answer: How do you test a tooth to differentiate between chronic perio and
supperative perio?
a. Cold test
b. Percussion
c. EPT
Incision and drainage before RCT Correct Answer: Periapical abscess, what do you do?
Percussion
- Perio lesion are sensitive to lateral percussion. Correct Answer: Test performed to differentiate endo
vs. perio lesions?
B. Pain to lateral percussion with a wide sulcular pocket Correct Answer: Which of the following
conditions indicates that a periodontal, rather than an endodontic problem, exists?
A. Acute pain to percussion with no swelling
B. Pain to lateral percussion with a wide sulcular pocket
C. A deep narrow sulcular pocket to the apex with exudate
D. Pain to palpation of the buccal mucosa near the tooth ape
,a. pulp testing (vitality tests) Correct Answer: Lateral periodontal abscess is best differentiated from the
acute apical abscess by?
a. pulp testing (vitality tests)
b. radiographic appearance
c. probing patterns
d. percussion
e. palpation
- sensitive to percussion, cold Correct Answer: Best way to diagnose acute periradicular periodontitis?
Localized chronic fluctuant in palpation
Localized chronic hard in palpation (if hard there is no pus) Correct Answer: When do you puncture an
abscess?
a. Both statements are true Correct Answer: There usually is no lesion apparent radiographically in
acute apical periodontitis. However, histologically bone destruction has been noted.
a. Both statements are true
b. Both statements are false.
c. First statement is true, second is false.
d. First statement is false, second is true.
b. Cannot diagnose based on information provided. Correct Answer: Based solely on the sharp transient
response of pulp to hot stimuli, what is the periradicular diagnosis?
a. Acute apical periodontitis
b. Cannot diagnose based on information provided.
c. Acute Apical abscess
d. Irreversible pulpitis
c. Pulpal necrosis and chronic periradicular periodontitis. Correct Answer: What complete endodontic
diagnosis could be completely asymptomatic but should require endodontic therapy?
a. Pulpal necrosis and acute periradicular periodontitis
b. Normal pulp and acute periradicular periodontitis.
c. Pulpal necrosis and chronic periradicular periodontitis.
d. Normal pulp and normal periapex
Correct Answer:
Can disturb ameloblastic layer of permanent successor or spread infection Correct Answer: Primary
tooth got necrosis, and the inflammation went down through furcation and affects permanent tooth.
What is it going to cause to permanent tooth?
it causes irritation, leading to resorption in primary teeth. Correct Answer: Calcium hydroxide is
contraindicated in pulpotomy in a child (primary teeth) because?
,percussion (most reliable) Correct Answer: The best method to test newly erupted primary teeth?
Electric pulp test
- On primary teeth you don't want to use EPT b/c thin enamel creates false results & after trauma, you
don't want to use electronic pulp tester. Correct Answer: Least reliable test on primary teeth?
A. pulpectomy and apexification. (bc >1 hr therefore not recent and large) Correct Answer: A 7-year-old
patient fractured the right central incisor 3 hours ago. A clinical examination reveals a 2-mm exposure of
a "bleeding pulp." The treatment-of-choice is
A. pulpectomy and apexification
B. pulpotomy with calcium hydroxide.
C. direct pulp cap with calcium hydroxide.
D. one-appointment root canal treatment.
1. Apexification (Non vital)
2. Apexogenesis (vital) Correct Answer: Patient (6 yo), the treatment of choice for a necrotic pulp on
permanent first molar would be:
1. Apexification
2. Apexogenesis
3. Root Canal Treatment
Splint the tooth is for pt comfort
- Avulsion: 7-10 days non-rigid/flexibile splint, antibiotics
- Horizontal root fractures: Rigid splint, 3 months
- Extrusion: 2-3 weeks splint Correct Answer:
a. external resorption Correct Answer: Reason for failure of replantation of avulsed tooth:
a. external resorption
b. internal resorption
7-10 days Correct Answer: How long do you splint after tooth has been avulsed?
2% Sodium fluoride for 20 minutes. Correct Answer: Avulsed tooth should be treated with what to
reduce root resorption?
No Correct Answer: CaOH tx for an avulsed tooth?
Yes or No?
b. intrusion Correct Answer: Which is more damaging to the PDL?
a. extrusion
b. intrusion
c. lateral
d. luxation
, e. avulsion
disruption of nerves to tooth Correct Answer: Luxated tooth, negative EPT, why?
bind with Ca+ and carry it out of the canal. It removes smear layer/inorganic layer in dentin to expose
tubules for penetration of endo sealer & exposing bacteria.
Ex. EDTA 17% Correct Answer: Endodontic chelating agents
Dissolve necrotic tissue
-not a chelating agent Correct Answer: Primary purpose of sodium hypochlorite?
Pink tooth Correct Answer: Internal resorption left untreated can lead to?
replacement resorption Correct Answer: When a tooth is ankylosed, what type of resorption?
3. Allows the file to be centered in canal Correct Answer: What is the NOT an advantage of stainless
steel files?
1. More flexible
2. Less chance for breaking
3. Allows the file to be centered in canal
4. Aids depth penetration in the canal
2. perforation in internal resorption Correct Answer: Which case has the best prognosis?
1. perforation in extneral resorption
2. perforation in internal resorption
3. extruded gutta percha
• Blood products in the dentinal tubules Correct Answer: Cause of grey tooth
• Blood products in the dentinal tubules
• internal resorption
• external resorption
• calcified canal
PMN cells Correct Answer: Most common cell in necrotic pulp?
2. Bacterial infection Correct Answer: Reason for failed endo?
1. Seal 2mm away from apex
2. Bacterial infection
3. RCT sealer beyond apex
Mandibular posterior teeth Correct Answer: Which teeth are more likely to have vertical fractures?
