Cud anyone help me with these ?'s.

[momdent06]

---

Members do not see this ad.

1.A pt. telephoned tht she broke off a big piece of her upper left back tooth.An emergency office visit between pts.revelead tht facial portion of the upper left second molar was sheared off levl wih the gingival tissue.A MOD nlay in tht tooth was loose and it was removed.No pulp exposure was evident,but the tooth was sensitive.The patient cannot be seen again for 2 weeks.
The Rx at this time wud be best to-

A.smooth the rough edgesand reappoint.
B.place zinc phosphate cement temporary restoration.
C.place a zinc oxide eugenol cement temporary restoration.
D.cement on a metal band or shell with reinforced zinc oxide cement.
E.dismiss the pt.with out further intervention until the next visit.

2.The factor in design of the abutment preparation for a RPDwhich must be determined before initiating Rx of the abutment teeth is the-
A.location of the rests and clasps
B.no. of teeth to be replaced by the partial denture
C.cusp inclines to be used in selecting the replacement teeth
D.composition of the denture material which is supported by the edentulous areas
E.all of the above.

 

[nuts]

I think the answer for #1 is C because tooth is sensitive and you need to put something sedative to protect the pulp. If endo treated, then, just smooth off rough edges. I don't think you should recement the inlay/onlay because the buccal wall is broken off and there may not be enough retention with a temporary cement.

For #2, I don't understand the question totally, but I guess it is A because cusp inclination, choice of material can be determined in the lab.

 

[cutedoc12]

i think da answer for #1 s D.....since da facial wall s missing it needs to b reinforced by metal band as patient cant b seen for 2 wks n its possibl the tooth may broke during dat time n moreovr zno-eug will help relieving senstivity..................correct me if m wrong

 

[momdent06]

yes, i anticipated D as the correct ans too.thnx to both of u for taking the efforts to ans.

 

[momdent06]

1.the closest a dentist would have for comforting a patient.
a.look in the eye of the pts.
b.tap on the shoulder.

2.in order to give a pt.an incisor with younger look,wht can the dentist do?
a.straighten incisor edge
b.rounding incisor edge
c.move the line angles proximally
d.move height of contour gingivally.

3.which of the following materials is very hard to remove frm the pts.mouth?
a.alginate
b.polyether
c.polysulfide
d.silicone

4.the best and most effective way to remove stained mottled enamel
a.home bleaching
b.microabrasion tech.
c.office bleaching
d.walking bleaching

5.wht is the % os US population who sees a dentist each year?

6.atawic dental pts- what r their most common dental prob.
a.anodontia
b.maloccln
c.trauma

7.porcelain veneer- wht is the most imp.adv of resin veneer?
a.esthetics
b.cost
c.tooth preservation.

8.which feature provide the bond onlay the most retention?

9. a pt.who is taking dicumarol has most likely a history of?
a.angina
b.coronal infarct
c.cong.heart failure
d.cor pulmonale

10.the toxic effects of sulf ram is produced by which of its metabolites?
a.acetyl aldehyde
b.formaldehyde
c.gluteraldehyde

11.wht is the most definite way to diff. ameloblastoma and odon.keratocyst?
a.smear cytology
b.reactive light microscopy
c.reflective microscopy

12.which iintraoral site is the most common site of melanoma?
a.buccal mucosa
b.hard palate
c.floor of the mouth
d.gingiva
e.tongue

13.wht metal element of cobalt chromium alloy wud provide the anti-corrosion property?
a.cobalt
b.chromium
c.both
d.neither

14.which one cannot be observed on x-ray
canal calcifin.
root buccal curvature
canal nos.
the apical condn.

wht will make u suspect tht a pt. has nursing bottle caries?
a.caries bucally on mand.ant teeth
b.caries bucally on max.ant teeth.

best way to image TMJ
panoramic
MRI
CT
transcranial

in making radiographs,which controls the mean energy of the x-ray
mA
kVp
focal spot size
exposure time

which nerve in involved in LeFort 2 #
gr.palatine
infraorbital
nasopalatine
post.superior

wht % of lower first molar have 4 canals
15%
35%
55%
2%
25%

which best describes the interpersonal dist. zone in which dentist usually treat their pt.
social
intimate
public
personal

biotransformation is all except
conugation
covalent bond
hydrolysis
oxdn
whic prop of sodium hypoclorite is most undesirable
smell
tendency to bleach dentin
toxicity to vital dentin
corrosive action on endo files
reaction with chelating agents

wht is the activity of caries if sealed off with restn.?
regress
no activity
increase