2021 Flashcards
what is the success rate of pulpectomies in primary molars
90%
the use of general anxiety reducing treatment style can be very helpful to those with mild dental aniety.
engerndering a trusting relationship
aetiological factor in development of lymphoma
epstein barr virus
prevalance of dental caries in children
greater among those from poorer socioeconomic backgrounds
when placing a posterior composite resin restoration, which factor will have the greatest impact on short/long term success
skill of operator
which chemical reduces the setting expansion of gypsum products
potassium sulphate
diagnosis of periodontitis
indicates loss of attachment and alveolar bone
which cavity preparation will have the high configuration factor
occlusal cavity preparation
MODB
when RPD, rest seats are prepared in order to
reduce occlusal loading on abutment teeth
during cavity preparation of tooth 46 with moderate mesial, distal and occlusal caries, where would unintended/traumatic exposure most likely occur
on the pulp horn
px reutrns 5 days post extraction complaining of pain from extraction site. on examination it is obvious that the px has an infected socket
px asks if this is a result of dirty instruments
what are the measures to prevent spread of infection commonly reffered to as
standard infection control precautions
which is causative of speech problems
dry mouth
regarding a cerebrovascular accident
any age, result of cerebral bleed or ischaemia
the part of RPD framework that resists lateral functional movement/stress and provides support for mobile teeth is called a
bracing component
[x attends practice and you diagnose occlusal in the fissure of the 26. enamel is cavitated and you decide that the px requires an occlusal restoration
what is the most appropriate to first penetrate the enamel
high speed diamond fissure bur
HIV
has a cytopathic effect of CD4 helper cells
what route is elemental mercury most easily absorbed
lungs
which cranial nerve supplies structures derived from second branchial arch
facial nerve
record this BPE for px with gingivtis, what is the tx plan
1 / 0 / 1
1 / 2 / 1
OHI
supra in 1 sub in 2
which of the following may account for higher rates of oral cancer among men with SEA background
use of chewing tobacco
which is the best reason for placing lining
protection of the pulp against chemical and thermal stimuli
what are indications for direct pulp cap on permanent molar
symptomatic tooth
disposal of sharps at the point of use is the responsibility of the
user
under the equality act 2010 it is illegal to
offer targeted prevention to teenage boys
thermal expansion coefficient of dental amalgam is the same as
composite resin
maximum dose of prilocaine for a child px
6mg/kg
following inferior alveolar nerve block injection, px unable to close eyes or blink. which anatomical feature was affected by this procedure
facial nerve
if preformed metal crown is canting to one side after conventional preparation of primary molar, what is the problem
uneven reduction of occlusal surface
maxillary RPD for px missing 13, 12, 11, 21, 22, 23, 25, 26
kennedy class III mod 1
obstruction of bile duct prevents bile from entering the small intestine. in px which blocked bile duct, which one following dietary constituents is most likely to be incompletelt absorbed
iron
composite restoration, what etch
37% phosphoric acid
which impression material has the greatest dimensional stability
addition cured silicone
cushing syndrome
px have thin skin, easy bruising, proximal myopathy
synthesis of extracellular polysaccharide in plaque formation is greatest when which one of the following sugars in present within the diet
sucrose
AP are initiate when the membrane potential of a neuron is depolarised to a value fof around -55mV. this is a threshold. which pf the following changes in membrane properties is most likely to occur here
opening of voltage-gated Na+ channels
what material should be used for indirect pulp capping
setting calcium hydroxide
which baterial pathogen can be treated with antibiotics to prevent gastric ulcers
helicobacter pylori
measurements established the max biting force is the greatest for first permanent molars. which is the most plausible explanation. compared with other teeth, first permanent molars have the
greatest cusp inclinations
pernicious anemia is a disease that
usually has an autoimmune basis
in chewing
the hyoid bone retracts
which of the following is an indication for primary molar pulptomy
radiolucency in furcation area
which anaerobic pathogen causes psuedomembranous colitis
C.difficile
a false periodontal pocket
is formed by gingival swelling without any clinical attachment loss
where do the active molecules of the LA bind in sensory nerves to block impulse conduction
receptor within sodium channel
which of the following is correct in relation to px who wish to recieve a copy of dental records in terms of data protection act
records must be supplied within calendar month
when cleaning a blood or body fluid spill, which PPE should be worn
gloves, mask, visor, goggle,s disposalve apron, sturdy full shoes
following an inferior alveolar nerve block, px develops trismus, what muscle has been hit
medial pterygoid
when designing an RPD, need to consider support, support is the partial denture ability to
resist vertical seating forces
when providing oral hygiene the best advice would be
oscillating rotating rechargable powered toothbrushes reduce plaquw and gingivitis more than manual toothbrushes
which of the following materials undergo the highest thermal expansion
composite
with regards to barriers to communication in dental pratice
there isa mismatch between what dentist thinks ahs beem cpmminocated, vs what actually has
approximately what proportion of cancer is carcinoma
90%
the main principle of PPE is
to protect yourself and px from spread of micro-organisms
the aim of vaccination is to induce protective long-term immunity that replicates the immune response to natural infection. which antibody response represents the primary outcome of successful vaccination
IgG
what epidemiological measures is expressed as a proportion, not frequency
prevalence
DVT medication
warfarin
which dental procedures avoided in px with deficiency of clotting factor VIII
inferior alveolar nerve block LA
when is development of crown of primary maxillary central incisor complete
1.5months after birth
px has localised periodontitis, this means
less thsn 30% teeth affected
first primary molar identifying feature
cusp of carabelli
phase 2 drug metabolism reactions alter drugs by
conjugation = secretion of drugs
phase 1 = change activity of drug - hydrolysis, oxidation, reductiom, di
what infection control if px with C.difficle infction presenting for dental tx in surgery
treat px the same way you would for any other px using SICP - standard infection control precautions
what is a major failure of Hall crown
inter-radicular radiolucency
3mm gingival recession, attachment loss is 7mm, how deep is pocket
10mm
inRPD, what provides indirect retention
rests
in chewing, facial muscles
contribute to all stages of mastication
help in stabiliding hyoid bone, help in repositioning bolus in occlusalt
pulp exposed, small exposure, pulp vital and not hyperaemic - what now
direct pulp cap, RMGIC and restore temporarily
erythrocyte survive in healthy human adults for 120 days before removed and broken down. what is not a nromal product of erythrocyte breakdown in human adults
erythropoietin
normal - amino acid, bilirubin, biliverdin, iron
blood contains many cells, which type deficiency will lead to prolonged bleeding time
platelets
which type of periodontal ligament fibres originate in cervical region of teeth and extend to mesial or distal surface of adjacent teeth
transseptal fibres
organisation of HP, progreammes to improve health and oral. health promotion can utilise
process evaluation to look at longer-term effects in health progreammes
when preforming initial perio exam, which probe
BPE probe
which applies to px consent to tx
it is equally binding upon px and dentist
absolute risk difference
risk in 1 - risk in 2
[risk figured by the aim and the total amoint]
effect of cigarette smoking patterns from 18-35 years of age on cardiovascular diseases later in life
appropriate study design for this study
cohort study
tooth 27 has caries, remove and restoration
which nerve to anaesthetise
posterior superior alveolar nerve
ID injection, persistent right lip and chin parasthesia. which anatomical feature affected by this procedure
inferior alveolar nerve
MOD restoration on 37, IAB
px face begins to droop on left side - what is diagnosis
bells palsy
what infection is commonly caused by staph aureus
osteomyelitis - usually skin/wound infections tho
a matrix band is poorly fitting if
allows material beyond box floor
which term is described as force per unit area and is measured in pascals
stress
extraction lower right first permanent molar in 8y/o. what single injection site/technique would safely provide adequate anaesthesia
IDB, 2%lignocaine 1;80,000 adrenaline
during which week of i.u.l does hard tissue of teeth start to develop
week 5/6
GIC setting in absence of light a reduction oxidation reaction is important in
ensuring continued acid/base reaction
minamata convention on mercury, the provisions related to dental amalgam state that
no amalgam in children under 15 y/o
regards to IBS, which is correct
UC starts at rectum and extends proximally
main cytogenic abnormality associated with chronic myeloid leukaemia is
t(9,22) translocation, philadelphia chromosome
uncontrolled growth, proliferation of white blood cells
which is true about Hep B vaccine
contains surface antigen
correcg time to consider operative intervention for carious lesion is
when lesion is cavitated
which component is common to conventional and resin modified GIC
fluoroalumino silicate glass
epidemiological index DMFT is used fpr
dental caries prevalence in pop;ation
growth of base of skull occurs at spheno-occipital synchrondosis, between spehnid and occipital bones. what type of joint is this
fibrous joint
comparing effectiveness of theroretically based personal hygiene advice to periodontal instrumentation for improving periodontal health in dentate adults
RCT
what compound for blood spillage
sodium hypochlorite
preventiing reflux during swallowing is due to
elevation of soft palate
what porportion of needlestick injuries occur after a procedure
51-75%
what porportion of needlestick injuries occur after a procedure
51-75%
hyperdynamic mechanism, sitmuli applied to exposed dentine activate intradental nerves by icnreasing rate of dentinal fluid flow. which one of these sitmuli when applied to dentine will increase rate of sentinal fluod flow inwards = towards pulp
cold water
compared to high socio-economic, low socio-economic are
more likely to be edentulous
