T/F. The technical quality of the coronal restoration is equally/less important the technical quality of the endodontic treatment for apical periodontal health.
(Ray et al. IEJ 1995)
False. It is MORE important.
What is the long-term success rate of apically placed amalgam filling material? (Frank, et al. JOE 1992)
Poor / Not Predictable.
~60%
When does the most noticeable change in healing occur after periapical surgery? (Molven JOE 1996)
Within the first year
Which irrigant has been shown to dissolve mineral phase, liberate growth factors, and orchestrate stimulation of progenitors/stem cell differentiation? (Chapter 10)
B. EDTA
The predominantly infecting flora of previously root filled teeth are (gram positive/gram negative) and (aerobic/anaerobic).
Gram positive / Aerobic species
T/F. According to Sjogren (1990) teeth with necrosis and preoperative periapical lesions have a higher success rate vs teeth with no preoperative periapical lesion.
False. Teeth with no PARL have a higher success rate
T/F. Pre-operative use of anti-inflammatory medication has no effect on patients comfort post-operatively (Savage OOOOE 2004)
False. Pre-operative anti-inflammatory drugs do help with post-op pain.
Bystrom (endodent 1987) found Endodontic treatment in teeth with periapical lesions has a favorable prognosis of promoting healing, given two parameters:
Correct amount of time to heal (longer time before healing shows radiographically) and proper disinfection of the root canal space.
Four Possible Factors for non-healing of a periapical radiolucency in a root canal treated tooth include:
E. All of the Above
After Conventional IANB anesthesia, the onset of pulpal anesthesia occurs in most cases within:
C. 10-15 mins
According to a review on vasoconstrictors published in JADA 1999 by Yagiela, what situation is the only absolute contraindication for using adrenergic vasoconstrictors (epinephrine or levonodorphin) due to adverse drug interaction?
Cocaine intoxication within 24 hours
According to Kleiner et al, how does the description of craniofacial pain differ when it is caused by a cardiac ischemic episode compared to when it is odontogenic in origin?
Craniofacial pain from a cardiac ischemic episode typically has a “pressure” or “burning” sensation
According to Stojicic (JOE 2013), how long does it typically take for a mature biofilm to form in vitro?
3 Weeks
According to Finder and Moore’s local anesthetic dosage guidelines, how many cartridges of local anesthetic can safely be administered to someone weighing 120 pounds?
4 cartridges
T/F. Pain that arises from superficial somatic structures is well localized but pain from deep somatic structures is poorly localized.
True
Delayed healing in long term follow up cases is mostly likely related to over extension of the filling material that irritates the periapical tissues. Late failures are most likely related to an_________.
(________, 2002 IEJ)
Infection
Molven et al
Presence of preoperative radiolucency was found to be the only significant factor influencing healing of teeth after initial root canal treatment. Teeth with preoperative radiolucency healed at rate of _______, while teeth without preoperative radiolucency healed at the rate of _____. A total healing rate (no periapical disease present at all) of 81% was observed in the Toronto phase 1 study for all teeth.
(__________, 2003 JOE)
74% / 92%
Friedman et al
Non-surgical retreatment of teeth with respected anatomy yielded combined healed and healing success rate of 86.1%; while in teeth with altered anatomy retreatment yielded a 48.3% combined success rate.
A total retreatment rate of 69% was observed, while presence of __________ _________ ________was a significant factor influencing healing success.
(_______, JOE 2003)
Periapical pretreatment radiolucency
Gorni et al
Condensing osteitis showed regression after root canal treatment in _____ of the cases, with 64% showing complete healing of the pdl and 32% showing no change in pdl space after a mean follow up of 4.3 years.
No change in condensing osteitis was shown in 15% of cases (Eliasson et al, 1984 Oral Surg)
85%
__ is an early version of the AH Plus epoxy sealer that was found to release __ when setting.
AH 26 / Formaldehyde
While no traditional sealer application technique covered more than ____ of the canal wall surface, some researchers showed that ___ produced the best sealer distribution when used circumferentially.
62.5% / Ultrasonics
According to Marquis and Friedman, et al in the ___ study (2006), in terms of outcomes for initial non-surgical root canal therapy; ___% of teeth without a periapical radiolucency were categorized as healed, whereas ___% of teeth with a periapical radiolucency were categorized as healed.
Toronto
94%
77%
In a 2004 IEJ study, Menhinick et al showed which drug (or drug combination) was the most effective at reducing post-operative pain 1 hour after non-surgical root canal
therapy?
E. Ibuprofen/Acetaminophen 600/1000 mg
During treatment of symptomatic irreversible pulpitis on a mandibular molar, a failed 2% lidocaine with 1:100k epinephrine inferior alveolar nerve block should be followed with:
A. supplemental intraosseous injection using 3% mepivicaine
What are the maximum daily doses of ibuprofen, acetaminophen, and aspirin?
2400mg
3000mg
4000mg
What are the maximum daily doses of ibuprofen, acetaminophen, and aspirin?
2400mg
3000mg
4000mg
What are four factors that influence the efficacy of primary root canal treatment?
1. Absence of a pretreatment periapical lesion
2. Root canal filling with no voids
3. Obturation within 2mm of the apex
4. Adequate coronal restoration
___ pain tends to be dull, aching, or throbbing and should resolve completely with local anesthesia. If pain of suspected periradicular origin is non-responsive to local anesthetic, it is a strong indication that the pain may be non-odontogenic in origin.
Periradicular
T/F. Temperature elevations in the PDL in excess of 5 degrees Celsius can cause damage to the attachment apparatus.
False.
10 Degrees Celsius
___ is the ability of a microorganism to cause disease. ___ denotes the degree of pathogenicity of a microorganism. ___ are the microbial products, structural cellular components, or strategies that contribute to pathogenicity.
Pathogenicity
Virulence
Virulence Factors
What spaces are simultaneously involved with a diagnosis of Ludwig angina?
