OSCE 2013 Flashcards
For a handpiece what are the 5 things you must check before use?
Check the back of HP is tight
Check bur cannot be pulled out
Roll the bur on your finger checking that it can spin freely
Bur doesn’t wobble
Finally when running everything sounds okay
What does DR ABC stand for?
Danger Response Airway Breathing Circulation
When calling an ambulance what must you tell them over the phone?
Where you are
The condition of the patient
Give a phone number
That you need an AED and BVM
When giving CPR how many compression should be given per minute?
100-120
What is the ratio of compressions to ventilations>
30 compressions to 2 ventilations
How do you open a patients airway?
Head tilt chin lift
What are probes used for?
Caries detection
Surface inspection
What is a CPITN probe used for and what does it look like?
Used for BPE and has a black band from 3.5-5.5mm with a round ball at the end.
What does a PCP12 probe look like and what is it used for?
6PPC
Has two black bands, one from 3-6mm and another from 9-12mm
What are excavators used for?
Caries excavation
material removal
What are chisels used for?
Finishing cavo-surface margin angles and removal of unsupported enamel prisms.
What are burnishers used for?
Finishing amalgam and manipulating composite
What are Applicators used for?
Placement of lining material
Question 4 and 5 is about anatomy and cavity nomenclature.
See word doc
How many surfaces form to make line angles and point angles?
Line - 2
point - 3
Describe the shape of the mini-sickle, where you would use it in the mouth and the cross-section?
Two cutting surfaces on each blade for embrasure surfaces supra-gingivally
Triangular cross-section
Describe the shape of the Columbia universal curette, where you would use it in the mouth and the cross-section?
Two cutting surfaces on each blade
Subgingival and root planing anywhere in the mouth (limited access to deep pockets)
Rounded X section
How many cutting edges does the Gracey curettes have?
One
Where in the mouth would you use the grey Gracey?
anterior
Where in the mouth would you use the green Gracey?
posterior
Where in the mouth would you use the blue Gracey?
Distal
Where in the mouth would you use the orange, Gracey?
Mesial
Where in the mouth would you use the yellow hoe scaler?
Buccal and lingual
Where in the mouth would you use the red hoe scaler?
Mesial and distal
Principles for using Gracey Curettes?
Determine the larger outer cutting surface
The terminal shank should be parallel to the surface
Use fulcrum finger and finger rest
Vertical and diagonal cutting strokes
Where do you sit to scale 43-33?
7 o’clock
What teeth do you scale at 9 o’clock?
44-48 buccal
34-38 lingual
14-18 buccal
What teeth do you scale at 11 o’clock?
44-48 lingual 34-38 buccal 13-23 labial and palatal 14-18 palatal 24-28 buccal and palatal
When should all deciduous teeth have erupted by?
2 and 1/2 years
When does a babies first tooth come in?
4-6 months (lower central)
All permanent teeth should be in by what age?
12-13 years
What permanent tooth comes in first and at what age?
lower 6’s and at 6yrs
What is the order of deciduous teeth?
A,B,D,C,E
What is the order of eruption for permanent uppers?
6, 1, 2, 4, 5, 3, 7, 8
What is the order of eruption for the permanent lowers?
6, 1, 2, 3, 4, 5, 7, 8
From the eruption date, how long does it take for apexogenesis?
3years
What are some key differences between primary and permanent teeth?
Primary anteriors are smaller in both crown and root proportions.
Primary molars are wider M-D
Primary molar crowns are more bulbous
Primary teeth are usually whiter in colour
What feature is found on the mesial buccal cusp of the primary D?
Tubercle of Zuckerkandl
Where is the cusp of carabelli found in primary teeth and which tooth?
The upper E’s on the mesio-lingual cusp
How many roots do the primary upper molars have?
3
2 buccal and 1 lingual
How many cusps do the lower E’s have?
5 like permanent 1st
Where is the maxillary tuberosity found?
Buldge behind maxillary 2nd molars
What is the name for the anatomical feature found behind the tuberosity at the junction of the maxilla and hamular process of the sphenoid bone?
Hamular notch
What is the name given to the line where the hard and soft palate meet?
Vibrating line
What is the name given to the two small depressions behind the vibrating line and what purpose do they serve?
Palatine fovea
Role in gag reflex
Describe what the palatine raphe is?
A line that runs down the centre of the hard palate
What is the name given to the wrinkles at the side of the hard palate?
Palatine rugae
What is a pear-shaped pad?
Refers to an area formed by residual scaring of 3rd molar Ex and retromolar papilla.
Why is the pear-shaped pad important when making dentures.
The denture should extend over the distal edge of the pear-shaped pad
Where is the retromolar pad found?
Elevation distal to the mandibular 2nd molars
where is the buccal shelf found?
On buccal surface of the mandible just above the external oblique line
What are mandibular tori and where can they be found?
Boney growths are found along the surface nearest the tongue. Around the pre-molars area and attachment of the mylohyoid muscle attachment to mandible
Where is the mylohyoid ridge found?
On the inner surface of the mandible.
Giving attachment for the mylohyoid muscle and superior constrictor of the pharynx
Why is the pterygomandibular raphe an important feature?
Used for injection site of IANB.
Extends from lower last standing molar to the upper.
What are the names given to the top of the tongue and the bottom of the tongue?
Top - dorsum
bottom - ventral
How long do you splint an avulsed tooth?
2 weeks
What must the wire be that is placed on the avulsed tooth?
Passive
Describe the process of splinting an avulsed tooth?
Make sure the tooth is held by crown and reimplant.
Get 0.6mm HSSW, use floss to measure and cut wire to fit halfway on either abutment tooth.
Acid etch and prime and bond all 3 teeth.
Apply composite to all 3
Sink the contoured, passive wire into the composite
Shape and cure composite, add thin covering if needed on top
Smooth rough composite and wire ends
Why do you not need to always extirpate the pulp of an avulsed tooth?
As if the tooth has an open apex can revascularize
If the EAT is less than 60mins but has a close apex what would your Tx be?
Replant tooth under LA
Splint the tooth for 2 weeks
Remove the pulp asap (that day)
Place in anti-biotic steroid paste as an intra-canal medicament.
Remove at 2 weeks with the splint and replace with NSCaOH.
Obturate with GP at 4-6w
Refer to a specialist for interdisciplinary management
