Important Info 2.1 Flashcards
About 7 diagnostic questions…not difficult look at the pulpal and periapical dx charts and memorize them
They were generally all like the next flash card and just look at percussion, temp, and if there is swelling/pain/ etc. there was one that was normal for both I think.
—two of them involved swelling and pain with different EPT and cold/heat values but I put acute apical abscess/necrotic pulp for both of the answers.
(on the final but probs still need to know)
Pt comes in and says swelling and pain overnight. #30, 29, 28 tested for pulpal (say 30 had a radiolucency around it and it did say if there was one present or not) did not respond to EPT, cold, heat and the other two teeth were normal. Patient had swelling of the buccal vestibule what do you think the periapical/pulpal diagnosis is?
–options:
- normal pulp//normal periapical
- acute apical abscess/necrotic pulp
- asymptomatic apical periodontist/necrotic pulp
- symptomatic apical periodontitis/necrotic pulp
no answer was given on the file
asymptomatic apical periodontist/necrotic pulp???
swelling & pain makes me think its AAA/necrotic pulp- haley
(on the final but probs still need to know)
Photo of a “pear shaped” radiolucency between #8 and #9, what is your differential diagnosis?
–incisal foramen
–lingual foramen
–apical radiolucency of odontogenic origin
–incisal foramen
–apical radiolucency of odontogenic origin
(on the final but probs still need to know)
T/F: WVC (some obturation method we didn’t even learn much about idk) uses heat and not good for us to use.
WVC= warm vertical compaction
didnt learn much about it but im guessing false? bc its listed under acceptable techniques- haley
(on the final but probs still need to know)
MB canal is found in maxillary molar?
–below the MB cusp
–lingual towards the distal
-two other options
–below the MB cusp
(on the final but probs still need to know)
What is the size of vortex Blue?
30?
I think the range is 30-50 but IDK
orfice opener is 25/.08?-haley
(.25/.04-.50/.04 is range from last semester)
(on the final but probs still need to know)
Which of the following local anesthetics last the whole 3 hour appointment
bunch of lists….none of them do! (only last 30-90 minutes)
(on the final but probs still need to know)
Which of the following could a wise general dentist do?
Mandibular molar
-
(on the final but probs still need to know)
If you are shaping the Mesial facial canal of the mandibular molar which way would you want to brush stroke with the rotary instruments to avoid furcation?
mesial and facial
(on the final but probs still need to know)
SLOB rule: if you move the receptor MESIAL, the mesial root is still mesial then it is…
-mesial
-distal
-lingual
-something else
lingual
(on the final but probs still need to know)
Access of molars (maxillary?)
apex of triangle faces palate
(on the final but probs still need to know)
Most common fix for a perf?
MTA and collacote
(on the final but probs still need to know)
ADA guideline was a question about moral, ethical, etc.
no answer given
(on the final but probs still need to know)
Most important step in success?
case selection
(on the final but probs still need to know)
Reason why rotary files cause problem
cyclic stress and the fracture one
(on the final but probs still need to know)
What is the best immediate diagnosis for a perforation?
-refer and endo microscope
-use apex locator with hand file and x-ray
-two other options that obviously were not it
-refer and endo microscope
-use apex locator with hand file and x-ray
i think both of these are correct
(on the final but probs still need to know)
What is the gold standard for obturation?
CLC
(on the final but probs still need to know)
Which tooth is most commonly Type IV canal?
Mandibular 1st Premolar
(on the final but probs still need to know)
True/false
Something about you can’t always get 100% rid of bacteria but do ur best
true
(on the final but probs still need to know)
True/false
Type 2 and 4 canals shouldn’t have a rotary file in them
true
(on the final but probs still need to know)
True false: all posterior teeth need a full restoration after RCT
true
(on the final but probs still need to know)
Serial step back and the mm associated with the taper
1mm SSB = .05 taper
(on the final but probs still need to know)
Size #30 rotary file (master) is indicated for?
- Mand. Incisors
- 2 canal Premolars
- M. canals of Mand. molars
- B. canals of Max. Molars
(on the final but probs still need to know)
High cervical break is beneficial for what teeth?
No clue?
(on the final but probs still need to know)
of roots for premolars
Max 1st premolar:
* 2 roots
* thin M-D root(width of #4)
* Two canals most prevalent
Max 2nd premolar:
* Most often Type I 1 root 1 canal (75-85%); Type II, III & IV less frequently
* 2 roots (15 -25%)
* 3 roots very rarely
Mand 1st premolar:
* Usually one root, 1 canal (type I), 73.5 %
* Type IV, 24 %
* Three canals less than 1%
Mand 2nd premolar:
* Usually one root, 1 canal (type I), 85.5 %
* Type III, 11.5 %
* Three canals less than 1%
Working length definition
The correct WL is: 1.0mm SHORT of the CANAL EXIT
Know resistances for filing and what tight vs loose means
- If it is TIGHT RESISTANCE to apical advancement, you probably have a small canal which must be enlarged carefully to reach patency.
- If it is LOOSE RESISTANCE to apical advancement, you have encountered a canal curvature and you must bend the terminal flute of your file and search for the path to negotiate the curve
What are the causes of blockages and transportations?
- When we place a straight SS hand file in a curved canal
- it must track the OUTSIDE (convex) wall of the canal at some point. What does this do?
- Tends to gouge and lean against the outside wall of the canal creating the a Ledge,which can be the first step to Blockage or Transportation
Straight file in a curved root creates a…
ledge and block
Something about a rubber stopper indicating the curvature of the canal (worded badly)
???
Conventional sealer vs bioceramic sealer
???
Bioceramic sealers…
do NOT shrink
do NOT dissolve
are BIO active
____ ISO gutta purcha cone for CLC master cone
.02
When the MC is inserted it should stop at _________
WL
True/false
X-ray after MC fitting and insert the MC wet
true
MC should only bind at…
WL
Know how to tell on a radiograph if MC is too small or to large
Too small - Cone is too small in diameter and
distorts (crinkles) near apex.
Too large - Cone is too large coronally or canal taper is insufficient and will not seat at WL
What is the process of CLC?
Finger Spreaders are used to compact the MC gutta percha in the canal to create space for more Gutta Percha accessory cones to accomplish a dense fill and thin film of Sealer on the canal.
True/false
You can achieve a dense and homogenous fill with CLC
true
Taper of MC for single cone is ____
.04
How long do you have to fill out an incident report at umkc?
48 hours
What are the paths of communication between pulp and periodontium?
2 Lateral (accessory) Canals
Apical Foramen (most direct)
other: areas of cemental loss, tooth brush abrasion, bruxism, trauma, bulemia, erosion
True/false
Dental pulp can affect periodontium and periodontium can affect pulp
True
True/false
Primary endo has the best prognosis of all the endo-perio conditions
true
Lesion has a wide base, cone shaped, and calculus
Periodontal inflammation impacting the pulp 23
- What can we do in our office?
— Non perforating IRR
— Chronic ERR if we are certain of the diagnosis
Length of canine (roots?)
Max - 26.5
Mand - 25.6
Question about whether you dry or wet the canal before the x-ray or after.
Wet canal - working length radiograph and master cone radiograph
Dry canal - obturation/sear check radiograph
