other Flashcards
apical gauging
using the k file equivalent to your max size recirpoc - file should advance easily to CWL and not beyond.
Can assess with apex locator - reading should be green. Tugback confirms apical control
what must you do between each round of reciproc pecking
remove debris from flutes
irrigate
recapitulate
(patency file once passed 2/3 length)
why must smear layer be removed
prevents sealer penetration
what probe for locating orifices
DG16
0 reading on electronic apex locator
indicates PDL
remove 0.5-1mm from this to calculate CWL
discuss apical taper of modified double flare
use one file size larger than master apical file.
prep to 1mm less than CWL
R/I/P
then one size less and repeat until desired file goes passively to desired length
master apical file then used to smooth prep
treatment options for class II div 1
accept and monitor
URA only
Growth modification
Camouflage
Surgery
treatment options for Class II div 2
accept and monitor
growth modification
camouflage
surgery
3 factors increasing difficulty of class III treatment
multiple teeth in anterior crossbite
AOB present
skeletal element to malocclusion
6 keys of occlusion
class I molars
crown inclination
crown angulation
no rotations
no spaces
flat occlusal planes
what causes narrow teeth on an OPT
too far forwards
what causes wide teeth on an OPT
too far back
smiley face OPT
frankfort plane not horizontal to floor - head tipped down
5 patient positioning for lateral ceph
ear rods in EAM
frankfort parallel to floor
stabilising apparatus on nasion
teeth in ICP or RCP
receptor parallel to mid sagittal plane
3 structures for superimposition of lateral cephs
anterior wall of sella turcica
inferior alveolar canal
middle cranial fossa
how is NNT calculated
1 divided by ARD
5 elements in RCT bias assessment
S - method of randomisation
Allocation concealment
Blinding
Incomplete outcome data
Selective outcome reporting
7 criteria of a value
chosen freely
chosen from alternatives
chosen after thoughtful consideration of consequences of alternative options
prize this choice
affirm this choice to others
act upon it
act upon it repeatedly
physical signs of stress
shortness of breath
exhaustion
headaches
GI upset
psychological signs of stress
outbursts of anger
lethargy
irritable
how can we make sure no missed canals
ECJ
centrality
concentricity
how are metal and ceramic indirect restorations pretreated
metal - aluminium oxide
ceramic - acid etch with hydrofluoric acid
what should occlusal exam prior to bridgework look at
canine or group function
attritive lesions
incisal classification
will bridge interfere with occlusion
signs of parafunction
over eruption of opposing teeth
effects of smoking
affects vascularity, osteoblast and fibroblast activity pi
7 elements of the pink aesthetic score
soft tissue colour
soft tissue texture
soft tissue level
soft tissue contour
mesial papilla
distal papilla
alveolar process deficiency
aetiology of peri implant disease (4)
degree of roughness
operator placement
poor OH
impaired host defence
implant design
5 safety features of inhalation sedation equipment
oxygen flush button
scavenging system
pin index system
colour coded
non return valve in expiratory limb
flow control meters (no less than 30% oxygen)
