ADC exam buddy group here!(pls come in and join)

[drill]

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happy holiday zahnfee . 😀

 

[korekhar]

Hi everybody.I am looking for some overseas trained dentists in brisbane to make a study group for adc exam preparation.is there anybody interested?

 

[navprax]

hi drill

i just did few mcqs will u pls tell me the asnswer for this question is it b or e


1.Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation?

A.Increase concentration of fluoride in solutions
B.Raise the PH of the fluoride solution
C.Increase the exposure time to topical fluoride
D.Pre-treat the enamel with 0.5% phosphoric acid
E.Use NH4F rather than NaF at a lower PH

 

[drill]

hi nav I think it's more like B
but for D , I have a doubt with ph , I saw in one study using two amino fluorides with different PH, the PH+ one got more fluoride concentration result in enamal and dentine.
so If choosing between amino and sodium, amino is preferred.
but for amino fluorides. PH lower is not always better.

drill

hi drill

i just did few mcqs will u pls tell me the asnswer for this question is it b or e


1.Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation?

A.Increase concentration of fluoride in solutions
B.Raise the PH of the fluoride solution
C.Increase the exposure time to topical fluoride
D.Pre-treat the enamel with 0.5% phosphoric acid
E.Use NH4F rather than NaF at a lower PH

 

[drill]

A diabetic patient with moist skin, moist mouth and weak pulse; what wouldyou do?

give glucose

can someone explain?

 

[navprax]

hi
drill

acc. to your statement E is answer as it is using amonia at lowe ph in B is asking to raise the ph without mentioning any specefic soln
so b is correct statement so answer is e ????? wat u say

 

[drill]

which of the following statements IS INCORRECT

I don't know about D ...............

 

[navprax]

drill
in diabetic pt risk factor is hypoglycaemia ,treatment is to give glucose, if conscious ,in any available form and glucose can be easily available in clinic
in unconscious pt, protect airway ,iv acess to give 20-50 % dextrose

in question it is mentioned diabetic so i will go for gulucose to avoid hypoglycemia but if the diabetic condition has not been mentioned then i would have gone for airway or adrenaline that is for shock treatment. and it is also not mentioned that pt is unconscious or not . so i will consider the pt to be conscious only

with excess insulin also hypogycaemia occurs as pt is diabetic may be he has taken the insulin before also


i think with etched surface fixation is always better whether it is for flouride or composite

 

[navprax]

wt abt the question 84 i would go for A wat u say
wt abt ques 85,105 i think D .

q136 movement is bucco lingual , as rotation is for single rooted tooth or secondary movement

 

[navprax]

161.In regards to Gold casting alloys which one is available for bridge
A type3 or type 4
180. Why do you polish the teeth before seating of partial dentures:

A. To smooth the rough surface
B. To minimise the retention of plaque
C. To increase the adoptability of occlusal rests
i think c is better choice

 

[DrHelos]

wt abt the question 84 i would go for A wat u say
wt abt ques 85,105 i think D .

q136 movement is bucco lingual , as rotation is for single rooted tooth or secondary movement

q 136 (from chapter 7 peterson )
upper fisrt molar : the basic extraction movement is to use strong buccal and palatal pressures, with stronger forces to buccal than toward the palate. as its a thin bone and also it is prefereble to fracture a buccal root than a palatal root as it is easier to retrive the buccal roots (strong force fracture the root ).
Rotational movement: not always used for all single root teeth.for example in lower incisors the force is bucco lingual (equal force ). rotational movement mostly in upper central incisors+lower premolars

lower first molar : bucco lingual
lower second molar: bucco lingual but strong force toward lingual (lingualveloar bone around second lower molar thiner than the buccal plate)

so in my opinion the question should be
What technique is used in the extraction of upper permanent 1st molars:
answer: c

 

[navprax]

Q221,230,259 pls check other questions in last posts

pls check Q 262 for Q 1
with this message there is attachment of Qs which needs discussion
as it was difficult to write all questions here .
pls seniors odonta ,composite , king tut help me with these question
for convenience i uploaded them in the file.

 

[drarun]

Hello Doctors,

Good to see the number of posts and the useful information disseminated for Dentists from overseas in an attempt to clear the ADC. I am appearing for OET on Nov. 3 2007 and hope to take up the Prelims in March 2008, have not applied for assessment with the ADC yet. Is there any cut of date to take up the prelims in March 2008.

Any advice in this regard and OET, Prelim Exams and the Clinicals, I would be grateful. I am located in Canberra and can be reached at [email protected].

I request for a link to the 1000 MCQ or emailed at my Email address.
DR. ARUN

 

[navprax]

dr. arun
last date for prelims of march is 1dec . if u are appearing for oet in nov ,u will get result in 6-8 wks i think for prelims oet complete result is required

 

[kamna]

Q221,230,259 pls check other questions in last posts

pls check Q 262 for Q 1
with this message there is attachment of Qs which needs discussion
as it was difficult to write all questions here .
pls seniors odonta ,composite , king tut help me with these question
for convenience i uploaded them in the file.

m y friend ; the pattern of question is beyond understanding.
where from did u get all these.
Kamna

 

[drill]

In phillip's science of dental materials 11th edition p571
type 3 : high stength-for castings subjected to high stress(eg. onlays, thin copings, pontics, crowns, and saddles)
type 4: extra-high strength-for castings subjected to very high stress(eg., saddles, bars, clasps , thimbles, certain single units, and partial denture frameworks)

" type 1 and 2 alloys are often referred to as inlay alloys. traditional types 3 and 4 allloys are generally called crown and bridge alloys, although type 4 alloys also are used occasionally for high stress applications such as removable partial denture frameworks " p572

so type III has enough stength but type 4 is also acceptable ........

 

[drill]

the purpose of tilting the handpiece lingually should be
1, conserve lingual dentine
2. avoid buccal pulp horn.

 

[drill]

"dry socket" ------> Purulent exudate is not a must

aetiology is still unclear ? although fibrinolysis is one of the possible?

prophylactic priscription of antibiotic do reduce incidence according to several studies, but depending on the complexity of extraction i don't think it should be recommended for every case of extraction .....

opinions please

 

[drill]

I think "tooth crowding" helps with calculous formation build up

 

[drill]

p410 of phillip's science of dental materials

1) mixing is not required, which results in less porosity, less staining, and increased strength
2) an aliphatic amine can be used instead of the aromatic amines required with chemical curing, thereby enhancing color stability
3) command polymerization on exposure to blue light, providing control of working time.

drawbacks 1) limited curing depth----> longer working time when building large fillings
2) relatively poor accessibility in certain posterior and interproximal locations
3) variable exposure times because of shade, longer exposure times for darker shades and increased opacity
4)sensitivity to room illumination

 

[drill]

isn't the lesion on x ray "Triangle with apex towards the dentine? "

also there could be a radiopaque surface layer of enamel
"It seems evident that the persistence of a radiopaque white line
on the surface of some incipient caries lesions cannot be dismissed
as an artifact, but is to be considered a significant phenomenon.
Three possible explanations may be offered. The first is that since
hypercalcification of surface enamel evidently occurs normally, the
removal of mineral matter in incipient caries may still leave more
mineral matter at the surface than in the depth of the lesion. The
second explanation is that caries may have undermined the enamel,
having started at some point which does not lie in any of the sections
examined. [This explanation must be considered because serial
ground sections cannot include all planes of a lesion. There is evidence
that decalcification is the essential lesion of incipient enamel
caries (6). Pincus' suggestion of bacterial attack on organic enamel
matrix (8) cannot explain the radiolucent areas seen in grenz-ray
studies. This is due to loss of inorganic matter judging by artificial
decalcification studies of enamel (9).] A third explanation is that the
decalcified surface layer of enamel has been "remineralized" by saliva."

 

[DrHelos]

the purpose of tilting the handpiece lingually should be
1, conserve lingual dentine
2. avoid buccal pulp horn.

dear Drill
buccal pulp horn is far enough not to be exposed. lingual pulp horn is tilted lingally so when we praper the lingual surface of the tooth if we dont tilt handpiece lingally the lingual horn will be exposed . (I asked from a post graduate student in restorative) so it should be

1- conserve lingual dentine 2- avoid lingual pulp horn

 

[DrHelos]

isn't the lesion on x ray "Triangle with apex towards the dentine? "

also there could be a radiopaque surface layer of enamel
"It seems evident that the persistence of a radiopaque white line
on the surface of some incipient caries lesions cannot be dismissed
as an artifact, but is to be considered a significant phenomenon.
Three possible explanations may be offered. The first is that since
hypercalcification of surface enamel evidently occurs normally, the
removal of mineral matter in incipient caries may still leave more
mineral matter at the surface than in the depth of the lesion. The
second explanation is that caries may have undermined the enamel,
having started at some point which does not lie in any of the sections
examined. [This explanation must be considered because serial
ground sections cannot include all planes of a lesion. There is evidence
that decalcification is the essential lesion of incipient enamel
caries (6). Pincus' suggestion of bacterial attack on organic enamel
matrix (8) cannot explain the radiolucent areas seen in grenz-ray
studies. This is due to loss of inorganic matter judging by artificial
decalcification studies of enamel (9).] A third explanation is that the
decalcified surface layer of enamel has been "remineralized" by saliva."

in interproximal caries the apex of the triangle is at the dentino-enamel junction (DEJ), so "b" is not the answer.
part a according to your explanation seams rational, but not sure.

 

[navprax]

hi drill
i think for Q105 i agree with u as etiology for dry socket is not always clear , similarly exudate is not always seen so from these poptions we can opt for c only as that may be a one of etiology

Q136 is incomplete.
Q161 in answer type 3 is mentioned so answer A is correct
Q262 c is correct???
Q1 A is correct ans??? ans still not clear to me.......
Q221 c was in my mind also but mcq ans was A so ........ ithink we shuld correct it c only. any other opinion?????
Q259 increased strength,enhancing color stability,control of working time.from these point i think B,c, E are not the answer for this .... opinion pls

 

[navprax]

wt abt Q84,85 ,105........ i
hi i have just done 300 Mcqs from today i will start 3oo onwards if i am lagging behind pls tell me so i can start with u people but i think many questions are still pending....................

 

[navprax]

Q356 1.If amalgam gets contaminated with moisture, the most uncommon result is:**

secondary caries , but i have never read a case of blister formation with amalgam contaminated with water pls coment.....

 

[drill]

Q356 1.If amalgam gets contaminated with moisture, the most uncommon result is:**

secondary caries , but i have never read a case of blister formation with amalgam contaminated with water pls coment.....

agree with you , I don't know what"blister formation " means .
secondary caries is not related to post operative expansion, more related to oral hygiene and dietary factors of the patient

 

[drill]

hi drill
i think for Q105 i agree with u as etiology for dry socket is not always clear , similarly exudate is not always seen so from these poptions we can opt for c only as that may be a one of etiology

Q136 is incomplete.
Q161 in answer type 3 is mentioned so answer A is correct
Q262 c is correct???
Q1 A is correct ans??? ans still not clear to me.......
Q221 c was in my mind also but mcq ans was A so ........ ithink we shuld correct it c only. any other opinion?????
Q259 increased strength,enhancing color stability,control of working time.from these point i think B,c, E are not the answer for this .... opinion pls

Q1 and 262, according to Dr helos, lingual pulp horn is more easy to be exposed?

now " preserve lingual dentine" is for sure.
but which pulp horn to avoid? lingual or buccal ?

 

[dr yvonne]

😛hello everyone....

Im a new member from the Philippines.... I will be taking my prelims on march 2008 in Brisbane... im happy to discover this thread... very helpful and informative

Anybody from the group who has a good heart😍and is willing to share the 1000 mcq's and dental decks .... I already have some of the review materials listed.... pls pls.... my email ad is [email protected]
any help is much appreciated.

 

[Dandan]

HI
I am an Iranian dentist and new in this site ,recently move to Melbourne and just prepare for OET and may be sit for next year exam ,(just today received OET'Smaterial )🙂
I don't have 1000MCQ and did'nt understand your explanation a bout Q ,I appreciate if someone who had1000MCQ send it to me,this is my email: [email protected]
thanx a lot and waiting for your 😍reply.
Dandan

 

[navprax]

with moisture contamination of amalgam delayed expansion occurs due to release of hydrogen which causes pain .
options blisters, caries, low compressive strength all are uncommon i
i think Qs shuld be for the most common not for uncommon

 

[hope533]

agree with you , I don't know what"blister formation " means .
secondary caries is not related to post operative expansion, more related to oral hygiene and dietary factors of the patient

blisters (like the ones on skin)are formed on the surface due to release of hydrogen due to moisture contamination.read it somewhere.Does anyone support this?pg 380 of bouchers also mentions blistering in relation to delayed expansion.

 

[hope533]

I think "tooth crowding" helps with calculous formation build up

check out pg526,perio.of boucher.same question .
any idea how masticatory habits promote calculus buid up?

 

[navprax]

hi hope
chances of secondary caries with moisture contamination are almost 0-1%
wt abt the chances of blister formation are they very common????????????

i have seen many cases , pt who use one side for mastication , they get calculus deposition on other side as they are not masticating with that side even on the occlusal surface.
now is this the improper mastication habit which is responsible for calculus fomation on not using side
or
mastication prevent calculus formation on the masticating side
pls coment
sorry i dont have boucher at present anybobdy who has boucher pls help me with these qs

 

[navprax]

hi drill
compare Q80 and Q400
in Q 400 answer is B
but in option e ph is no mentioned

 

[hope533]

delayed expansion causes pitting,blister formation,pain and loss of strength.
Of the the options,the most uncommon result is secondary caries.thanks for clearing me on the mastication-navprax.and i think we incline the the bur to avoid buccal pulp horn .isn't it the higher pulp horn?check the diagram in bouchers on the relationship of the occlusal plane and pulpal wall in a preparation in lower first premolar.pg 380.but this is a flimsy evidence .any hard core evidence for this much talked about question?

 

[hope533]

I have no idea🙁 who can expain?

a positive overbite is necessary to maintain the corrected upper incisor position in the short term.in the longer term ,stability of incisor will depend on the mand.growth pattern which will determine the final overbite and overjet.....odell pg43
everyone agrees with ans b for this?

 

[navprax]

anterior crossbite shuld br treated earlirer,if associated with displacement,provided sufficient o/b exist to retain the result.if o/ b is not sufficient then functional appliance is required. so first thing to check for correction is o/b so i think B is better choice

 

[drill]

hope you enjoy joining here and welcome joining discussion

 

[drill]

blisters (like the ones on skin)are formed on the surface due to release of hydrogen due to moisture contamination.read it somewhere.Does anyone support this?pg 380 of bouchers also mentions blistering in relation to delayed expansion.

thank you hope, then can I take " blister" as " gas bubble" on the surface of amalgam? if so i guess I can understand.
sorry for my english understanding 😛

 

[drill]

check out pg526,perio.of boucher.same question .
any idea how masticatory habits promote calculus buid up?

no idea, can you also explain about other options about their effect on calculus build up ?

 

[drill]

hi hope
chances of secondary caries with moisture contamination are almost 0-1%
wt abt the chances of blister formation are they very common????????????

i have seen many cases , pt who use one side for mastication , they get calculus deposition on other side as they are not masticating with that side even on the occlusal surface.
now is this the improper mastication habit which is responsible for calculus fomation on not using side
or
mastication prevent calculus formation on the masticating side
pls coment
sorry i dont have boucher at present anybobdy who has boucher pls help me with these qs

if this is the case i still can not agree with the answer " mastication" 😳

 

[drill]

delayed expansion causes pitting,blister formation,pain and loss of strength.
Of the the options,the most uncommon result is secondary caries.thanks for clearing me on the mastication-navprax.and i think we incline the the bur to avoid buccal pulp horn .isn't it the higher pulp horn?check the diagram in bouchers on the relationship of the occlusal plane and pulpal wall in a preparation in lower first premolar.pg 380.but this is a flimsy evidence .any hard core evidence for this much talked about question?

hi hope can you draw a diagram according to that on a painting board? , at the moment i more incline to " buccal horn" , have you seen dr helo's explanation ?

 

[drill]

dear Drill
buccal pulp horn is far enough not to be exposed. lingual pulp horn is tilted lingally so when we praper the lingual surface of the tooth if we dont tilt handpiece lingally the lingual horn will be exposed . (I asked from a post graduate student in restorative) so it should be

1- conserve lingual dentine 2- avoid lingual pulp horn

hi dr helos , could you please draw a diagram to support this arguement? thank you !

 

[drill]

is the maximum dose 300mg?

how is answer 30ml calculated ?

i think i am becoming dizzy and dumb from study already . 🙁

 

[drill]

anterior crossbite shuld br treated earlirer,if associated with displacement,provided sufficient o/b exist to retain the result.if o/ b is not sufficient then functional appliance is required. so first thing to check for correction is o/b so i think B is better choice

thanks nav and hope for giving opinions. I am still a bit confused. can you guys tell me what is the sequence to treat a "lingual cross bite"? what book should i read regarding this . I know little on ortho

 

[sonpari]

hi drill, navprax and rest 😎

sori guys have been reali busy
so cudnt catch up
will try matching u i am leaving first 300 ques to be in line wid u guys

lets hope i can contribute

cheers

 

[DrHelos]

is the maximum dose 300mg?

how is answer 30ml calculated ?

i think i am becoming dizzy and dumb from study already . 🙁

hi Drill
according to odell :

lignocaine:
"max dose: 4.4 mg/kg
max dose at any one time: 300 mg
equivalent cartriges: for 2% solutions about eight 1.8 ml or six and a half 2.2 ml cartriges" . It means = 8 * 1.8= 14.4 or approximately 15 ml also 6.5*2.2= 14.4 or 15 ml
according to these findings max dose is 15 ml for 2% .
they have answerd for Q 318 =10 ml / for Q399 =30 ml. 10 ml seems closer . any idea?
for lingal horn by now I dont have any document I just asked from a PG student in restorative .may be ur explanation is true any way i try to find again.

 

[sonpari]

Q356 1.If amalgam gets contaminated with moisture, the most uncommon result is:**

secondary caries , but i have never read a case of blister formation with amalgam contaminated with water pls coment.....

hi guys q356

to clear the confusion nav ques is correct ....
the answer is ofcourse i.e secondary caries

now reasons :
pl read dis ....

contamination occurs when amalgam comes in contact with moisture ...........many complications occur:
1 gases including protrusion of entire restoration
2 increased microleakage space
restoration perforation
3 blister formation on the restn surface
4 increased flow and creep
5 pulpal pressure pain
6 most obvius delayed expansion..upto 400micron/cu.c

(MARZOUK,M.A ; page 108 ) operative dentistry book quite commonly used in states and in india by post graduates ...

so hope 533 u did read it right ...
nav and drill hope it clears that blister formation does occur

now analysing we need answer: the most uncommon on e:😕

the possible reason that will cause sec caries is microleakage but that is a common complication and rest options all have the same probability as microleakage .... ruling out a,b,d ....the most uncommon option is sec caries ....

does that make sense ???😕😕

hope it helps ...😀[/S
cheers

 

[sonpari]

thanks nav and hope for giving opinions. I am still a bit confused. can you guys tell me what is the sequence to treat a "lingual cross bite"? what book should i read regarding this . I know little on ortho

hi drill

havent reached there but soon will post my answer

cheers 👍