Endodontics Flashcards
What is the Basrani classification of fractured teeth?
Class A1, A2a, A2b
Holstroms Veterinary Dental Techniques 3rd edition
A1: enamel fracture of crown
A2a: crown enamel and dentin fracture
A2b: crown enamel, dentin and pulp exposed
What is the Basrani classification of fractured teeth?
Class B
Class C
Holstroms Veterinary Dental Techniques 3rd edition
Class B: root fracture
Class C: crown and root fracture
According to Holstrom’s Veterinary Dental Techniques, what is the time of fracture cut off for performing vital pulp therapy on pulp-dentin fracture on a patient older than 18 months?
48 hours
According to Holstrom’s Veterinary Dental Techniques, what are the timing cut offs for vital pulp therapy for patients younger and older than 18 months?
Younger than 18 months: 2 weeks or less
Older than 18 months: 48 hours or less
According to Holstrom’s Veterinary Dental Techniques, the ideal working length is located where in relation to the apex?
1mm short of the apex
According to Holstrom’s Veterinary Dental Techniques, what rpm should rotary instruments be run at?
350rpm
Most low speed handpieces turn at 3000rpm
What fibers in the dentin pulp complex are you testing when performing sensibility tests (i.e. thermal or electrical conduction)?
A-delta fibers
In the study “Reliability of Electric Pulp Test, Cold Pulp Test
or Tooth Transillumination to Assess Pulpal
Health in Permanent Dog Teeth” what was considered the most and least reliable diagnostic test to evaluate pulp health in dogs?
- Most reliable - EPT (electric pulp test)
- Least reliable - TTI (tooth transillumination)
According to Zacher’s 2021 review “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” indirect pulp capping includes placement of what agent(s) as a base layer?
Manfra Marreta JVD 2021, Issue 2
Hard setting calcium hydroxide
MTA
newer generation bioceramic materials
Followed by glass ionomer or resin-modified glass ionomer then composite
According to Zacher’s 2021 review “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” how many millimeters of calcium hydroxide or MTA should be applied to the pulp during VPT?
JVD 2021, Issue 2
2-3mm
In the study “Reliability of Electric Pulp Test, Cold Pulp Test
or Tooth Transillumination to Assess Pulpal
Health in Permanent Dog Teeth” EPT identified what percentage of nonvital and vital teeth respectively?
96% nonvital, 100% vital
According to Zacher’s 2021 review “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” for apexification the working length should be how many millimiters short of the apex and how many millimeters of the apex should be filled with MTA?
1-2mm short of the apex
fill the apical most 4-5mm
Accoding to Zacher’s “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” what are appropriate techniques for treating fractured teeth with vital pulps?
JVD 2021
Bonding and sealing
Indirect pulp capping
Pulpotomy with direct pulp capping/vital pulp therapy
Accoding to Zacher’s “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” what are appropriate techniques for treating fractured teeth with nonvital pulps?
JVD 2021
Regenerative endodontic therapy
Apexification followed by conventional root canal therapy
What intraoperative findings are consistent with irreversible pulpitis?
Zacher “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” JVD 2021
Excessive or deep pulpal hemorrhage from exposed or amputated pulp
Persistent hemorrhage for greater than 5 minutes following partial coronal pulpotomy
When immature teeth sustain crown fractures when is extraction indicated?
Zacher “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” JVD 2021
Extensive alveolar bone loss that cannot be reversed
Insufficient crown structure for restoration
owners unable to pursue ongoing treatment
When the pinkish hue of a near pulp exposure is observed how many millimeters of pulp remains?
Zacher “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” JVD 2021
~0.5mm
Indirect pulp capping indicated
In the study “Reliability of Electric Pulp Test, Cold Pulp Test
or Tooth Transillumination to Assess Pulpal
Health in Permanent Dog Teeth” TTI identified what percentage of nonvital and vital teeth respectively?
Nonvital 59% and Vital 95%
What does thermal testing rely on?
Rapid temperature change of the tooth causes a sudden fluid flow within the tubules which stimulates the A-delta fiber nociceptors in the dentin-pulp complex.
In Luotonen’s 2014 article “Vital pulp therapy in dogs: 190 cases (2001–2011),” what was the range in hours of time since exposure to treatment and what was the correlation between time of exposure and treatment success?
J Am Vet Med Assoc. 2014
3 to 250 hours
Time since exposure had no significant correlation with success of treatment
In the human literature, what factor is most important overall for success of vital pulp therapy?
Zacher “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” JVD 2021
Removal of all inflamed superficial pulp
More necessary for success than timing
What intraoperative error can lead to VPT failure?
Zacher “Decision-Making and Management of Immature Permanent Teeth with Crown Fractures in Small Animals - A Review,” JVD 2021
Deep penetration of pulp dressing material into pulp
In Luotonen’s 2014 article “Vital pulp therapy in dogs: 190 cases (2001–2011),” what the overall failure rate of VPT with calcium hydroxide vs MTA?
Overall failure rate for VPT with calcium hydroxide was 5 times greater than with MTA
MTA: 92%
Calcium hydroxide: 58%
In Luotonen’s 2014 article “Vital pulp therapy in dogs: 190 cases (2001–2011),” what was the association between antibiotic use and outcome?
No significant correlation with antibiotic usage and outcome when multivariate analysis used