Help - Dental Anatomy!

[CALALILY]

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hi. would anyone have clues about answers to the following questions?

108: when viewed sagitally, which of the following teeth have their long axes at an angle LEAST perpendicular to the occlusal plane?
a. max. incisors
b. mand. canines
c. mand. premolars
d. max. premolars
e. mand. first molars

115: which of the following morphologic variations would worsen the prognosis for existing periodontal disease?
a. fused roots
b. excessively long roots
c. amelogenesis imperfecta
d. shovelling trait in central incisors

130: If lines were drawn connecting the orifices of the root canals of a maxillary first molar, a triangle would be formed. which leg of the triangle would be the longest?
a. mesiofacial to lingual
b. distofacial to lingual
c. mesiofacial to distofacial
d. each leg would have the same length

Thanks for taking the time to think through these,
Regards..

 

[CALALILY]

Please help with these too if you are energetic and all adrenalized with your dental anatomy.. 🙂

135: which of the following describes the contact relationship between the maxillary central incisor and the maxillary lateral incisor?
a. contact is ofset to the lingual
b. contact is centered incisocervically
c. lingual embrasure is larger than the facial embrasure
d. incisal embrasure is the largest of all the embrasures

150: the largest incisal embrasure is found between which of the following?
a. maxillary central incisors
b. max. central and max. lateral incisor
c. mand. central incisor and lateral incisor
d. max. lateral incisor and canine
e. mand. lateral incisor and canine

151: The contact area that is most nearly CIRCULAR is located on the crown of which of the following maxillary premolars?
a. mesial of the 1st
b. distal of the 1st
c. mesial of the 2nd
d. distal of the 2nd

ahhh... thanks for taking the time again to help me through these! 👍

 

[tamanna]

Please help with these too if you are energetic and all adrenalized with your dental anatomy.. 🙂

135: which of the following describes the contact relationship between the maxillary central incisor and the maxillary lateral incisor?
a. contact is ofset to the lingual
b. contact is centered incisocervically
c. lingual embrasure is larger than the facial embrasure
d. incisal embrasure is the largest of all the embrasures

150: the largest incisal embrasure is found between which of the following?
a. maxillary central incisors
b. max. central and max. lateral incisor
c. mand. central incisor and lateral incisor
d. max. lateral incisor and canine
e. mand. lateral incisor and canine

151: The contact area that is most nearly CIRCULAR is located on the crown of which of the following maxillary premolars?
a. mesial of the 1st
b. distal of the 1st
c. mesial of the 2nd
d. distal of the 2nd

ahhh... thanks for taking the time again to help me through these! 👍

hi

correct me if i am wrong in my answers

135. c

150.b

151.i am guessing it to be d

 

[SuzieQnMe]

Hey Calalily,

Thanks for the brain teasers. I'm still preparing for DA. But if I were to give these questions a shot, I'd say

108. A
115. A
130. B
135. C
150. A
151. your guess is as good as mine

I'd like to verify these myself, but have not the chance to do so right now. So if you know the right answers for a fact, do share. I am eager to learn!

Best wishes!

 

[tamanna]

hi. would anyone have clues about answers to the following questions?

108: when viewed sagitally, which of the following teeth have their long axes at an angle LEAST perpendicular to the occlusal plane?
a. max. incisors
b. mand. canines
c. mand. premolars
d. max. premolars
e. mand. first molars

115: which of the following morphologic variations would worsen the prognosis for existing periodontal disease?
a. fused roots
b. excessively long roots
c. amelogenesis imperfecta
d. shovelling trait in central incisors

130: If lines were drawn connecting the orifices of the root canals of a maxillary first molar, a triangle would be formed. which leg of the triangle would be the longest?
a. mesiofacial to lingual
b. distofacial to lingual
c. mesiofacial to distofacial
d. each leg would have the same length

Thanks for taking the time to think through these,
Regards..

hi

correct me if i am wrong

108.a

115.d

130.a

 

[CALALILY]

hi tamanna and suzie,
thankyou so much for taking the time out to try and asnwer these questions. i have noted your answers down and am still trying to look into all sorts of books for answers. as soon as i find them, i shall post them.
however, if anyone else wants to hazard a guess at these, it would be great to get some more input.
thanks.. 🙂

 

[quest_life]

151 cant be "A" ?

 

[quest_life]

151 cant be "A" ?

 

[CALALILY]

hey want2fly..
i am not even sure what this question means when they CIRCULAR. can you explain that and then maybe i can see your reasoning for saying that it cannot be "A".
thanks..

 

[CALALILY]

Hi suzie and tamanna
i found the answer to question 130. it is definitely A. i found this answer in the 2006 decks - i am not sure if the same question has been repeated in the 2004 decks.
hope this helps - i shall post more asnwers if i get a definite answer..

 

[quest_life]

Arent they talking abt converxity when they mean circular ?
Plz do correct me, thanks

hey want2fly..

i am not even sure what this question means when they CIRCULAR. can you explain that and then maybe i can see your reasoning for saying that it cannot be "A".
thanks..

 

[PREETHI]

hi,
i just went throu the kapalan material...
108. max premolar....refer under the angulation of teeth in the arch... and under the permolar description the point says that the mand premolars have slight ligual inclination....and the occusal tabel of max pre is centered faciolingually...i think that supports ur question's ans....
130.....mesiobucal to ligual...kapalan...
115. i guess it is last one
well that is yet...pls post few more question in dental anatomy
thanx

hi. would anyone have clues about answers to the following questions?

108: when viewed sagitally, which of the following teeth have their long axes at an angle LEAST perpendicular to the occlusal plane?
a. max. incisors
b. mand. canines
c. mand. premolars
d. max. premolars
e. mand. first molars

115: which of the following morphologic variations would worsen the prognosis for existing periodontal disease?
a. fused roots
b. excessively long roots
c. amelogenesis imperfecta
d. shovelling trait in central incisors

130: If lines were drawn connecting the orifices of the root canals of a maxillary first molar, a triangle would be formed. which leg of the triangle would be the longest?
a. mesiofacial to lingual
b. distofacial to lingual
c. mesiofacial to distofacial
d. each leg would have the same length

Thanks for taking the time to think through these,
Regards..

 

[PREETHI]

hi,
well i went throu...these are application questions...
135.it is gun shot ...C
150.pls let me know this....
151.a
if u need explaination i can provide u...
pls do let me know the ans for ...150.
thanx

Please help with these too if you are energetic and all adrenalized with your dental anatomy.. 🙂

135: which of the following describes the contact relationship between the maxillary central incisor and the maxillary lateral incisor?
a. contact is ofset to the lingual
b. contact is centered incisocervically
c. lingual embrasure is larger than the facial embrasure
d. incisal embrasure is the largest of all the embrasures

150: the largest incisal embrasure is found between which of the following?
a. maxillary central incisors
b. max. central and max. lateral incisor
c. mand. central incisor and lateral incisor
d. max. lateral incisor and canine
e. mand. lateral incisor and canine

151: The contact area that is most nearly CIRCULAR is located on the crown of which of the following maxillary premolars?
a. mesial of the 1st
b. distal of the 1st
c. mesial of the 2nd
d. distal of the 2nd

ahhh... thanks for taking the time again to help me through these! 👍

 

[PREETHI]

hi,
as far i think it is again an application que...where they are talking abt convexity but the question is with the surface it is contacting...any thing highly convex as the mesial surface of the 1st premolar...when contact obiviously take the shape of its convexity in its contact relation...pls correct if i am wrong...
thanks

Arent they talking abt converxity when they mean circular ?
Plz do correct me, thanks

 

[CALALILY]

hi preethi,
thanks for taking to time to sift through those questions. however, i still dont understand your reasoning for the CIRCULAR question.
firstly, what do they mean by circular?
secondly, how did you arrive at that answer?
please explain again..
thanks! 🙂

 

[PREETHI]

well,
i think it is a application one....as u know the mesial surface of the max 1st premolar...posess the highest convexity...so when it form a contact with another tooth suface...it cant become flat or alter into any shape it has to maintain its convexity and the subsequently the contact area ...just imagine that convexity ur holding it against the glass window when u view it from opp side u can see area in contact with the glass forms a circle that is placed vertically...and comparing to the given examples the other options dont have that great convexity...so i would choose mesial surface of the 1st max premolar.....

 

[Dushyant]

hi,
i just went throu the kapalan material...
108. max premolar....refer under the angulation of teeth in the arch... and under the permolar description the point says that the mand premolars have slight ligual inclination....and the occusal tabel of max pre is centered faciolingually...i think that supports ur question's ans....
130.....mesiobucal to ligual...kapalan...
115. i guess it is last one
well that is yet...pls post few more question in dental anatomy
thanx

HI,
u r correct abt the mand pm.BUT in the que they have asked for the tooth LEAST PERPENDICULAR to the plane.and premolars which have 5degree angulatins are most perpendicular.On the other hand the Max incisors are a t 28 degrees so that makes them the right ans.
Please correct me if i am wrong.
And for 135 why not A
and d for 151.

 

[PREETHI]

hi,
sorry i read it previously as most perpend to the occlusal plane.....according the question as u said...it is max centerals...sorrry about that....thanx for correcting..

 

[quest_life]

Agree with u Preethi

hi,
as far i think it is again an application que...where they are talking abt convexity but the question is with the surface it is contacting...any thing highly convex as the mesial surface of the 1st premolar...when contact obiviously take the shape of its convexity in its contact relation...pls correct if i am wrong...
thanks

 

[quest_life]

Ans- to 150 is D

 

[fauchard]

I had a tough time going through all the answers. Can somebody post the right answers to the questions ( atleast for the ones a common conclusion has been arrived. I would greatly help others.

as far as my opinion goes
- least perpendicular would be the maxillary central
- widest incisal embrassure - max lat and max canine
- longest line for max 1 mol- the line bw mesiofacial and palatal

I dont quite agree with the roundest convexity being the mesial of max 1 PM

Also can somebody answer this question

the anatomic progression from mandibular 1 to 3 molar
1- roots become more divergent
2-the crowns and toots become longer
3- the crowns and roots become shorter
4- the crown become longer but the root get shorter
5- the crowns become shorter but the roots get longer



Please help!!!!!!

 

[Dent tex]

Hey as far as I know
- max lat incisor has more inclination than max central so I think that should be least perpendicular
and
- the anatomic pro for mand molars is both crown and roots get smaller as it goes.
correct me if I'm wrong.

I had a tough time going through all the answers. Can somebody post the right answers to the questions ( atleast for the ones a common conclusion has been arrived. I would greatly help others.

as far as my opinion goes
- least perpendicular would be the maxillary central
- widest incisal embrassure - max lat and max canine
- longest line for max 1 mol- the line bw mesiofacial and palatal

I dont quite agree with the roundest convexity being the mesial of max 1 PM

Also can somebody answer this question

the anatomic progression from mandibular 1 to 3 molar
1- roots become more divergent
2-the crowns and toots become longer
3- the crowns and roots become shorter
4- the crown become longer but the root get shorter
5- the crowns become shorter but the roots get longer



Please help!!!!!!

 

[quest_life]

Answer is crown and roots become shorter

I had a tough time going through all the answers. Can somebody post the right answers to the questions ( atleast for the ones a common conclusion has been arrived. I would greatly help others.

as far as my opinion goes
- least perpendicular would be the maxillary central
- widest incisal embrassure - max lat and max canine
- longest line for max 1 mol- the line bw mesiofacial and palatal

I dont quite agree with the roundest convexity being the mesial of max 1 PM

Also can somebody answer this question

the anatomic progression from mandibular 1 to 3 molar
1- roots become more divergent
2-the crowns and toots become longer
3- the crowns and roots become shorter
4- the crown become longer but the root get shorter
5- the crowns become shorter but the roots get longer



Please help!!!!!!