Review from Problem-Solving Sessions Flashcards
What is the radiographic representation of cortical bone (alveolar bone proper)?
Lamina dura
How long will a radiolucency at the apex of a necrotic tooth take to heal?
6 months to 2 years (Average is 9 months)
Is there a void between the coronal restoration and the gutta percha on the radiograph, should it be considered a final restoration?
No. The final restoration should be flush against gutta percha.
How long should Ca(OH)2 be in the tooth prior to obturation?
2-4 weeks
What are 4 types of root fracture healing patterns?
- Calcified Tissue
- Connective Tissue
- Bone and Connective Tissue
- Granulation Tissue
If a radiolucency at the end of a non-vital tooth has not healed 12 months after NSRCT, what should be done?
Wait for 2 years from treatment, assessing at inervals radigraphically. Refer if it become symptomatic or does not heal at 2 years from treatment
How long should walking bleach technique take?
3 separate visits about a week apart for 20 minutes each. There is a one-time fee regardless of the number of visits.
Can internal bleaching regress?
4% do regress. You can rebleach however.
What Dr Replogle’s product of choice for internal bleaching?
Sodium perborate and water.
Can cavit be used in a vital tooth?
No. It absorbs water and would cause vital tooth pain
According to Dr Replogle, how long after eruption of the tooth before the apices close?
3-4 years
What is the shape of an open apex?
Oval or oblong
What is the reason for using a moist cotton pellet in a pulpotomy?
Apply pressure and stop bleeding
What is the reason for irrigating a pulptomty with 2.5% NaOCl?
Disinfect pulp stump
What is the reason MTA is placed on pulp stumps in pulpotomy?
Biological permanent barrier between pulp and restorative material
What is the reason for placing glass ionomer on top of MTA in a pulpotomy?
Releases fluoride to prevent further decay
What is the reason for composite restoration in pulpotomy?
Provides coronal seal
How many appointments will an MTA pulpotomy require?
2 because MTA must be allowed to harden for 3-4 weeks
Why is MTA is the material of choice for a pulpotomy?
The tooth is free from inflammation at 1 week. It become covered with a compact hard tissue barrier of steadily increasing strength and thickness within 3 months.
What percentage of mandibular central incisors have 2 canals?
25%
If a second canal is present on a mandibular central incisors, it is usually located in which part of the root?
Lingual
Why would an MTA apical barrier technique be chosen over a revascularization / regeneration procedure?
If necrotic tooth root already has sufficient root length and root wall thickness but apex is open, MTA is indicated. Revascularization only indicated in a necrotic tooth if it has insufficient root length and insufficient root wall thickness
