🔰قناة اللجنه العلمية للدفعة 7 فني أسنان 🔰
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هذه 👆 ملازم السنه الماضيه كروان للاستفاده واسترجاع المعلومات
نموذج مهم 🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑
1- We can not be used acrylic base
for :
A- irritant ( allergic reaction )
B- esthetic
C- all of above
الحل A
2- most frequently use of metal base :
A- chrome cobalt
B- titanium
C- gold
D- none
3- for partial denture where relining is anticipated in a short time the base is
A- acrylic saddle base
B- matal saddlebase
C- combination of metal and acrylic base
الحل C
4- associated with the junction between the metal of the RPD framework and the acrylic base material formed by relief wax used to provide space for the denture acrylic : A- external finish line
B- internal finish line
الحل B
5- where the denture base cross the gingival tissues it should be relived so as :
A- esthetic
B- not to impinge on the gingival and cause irritation
الحل B
6- fair bond to denture plastic
A- porcelin teeth
B- acrylic teeth
الحل B
7- metal teeth used : A- interarch is reduced
B- interarch is increased
C- all of above
D- none of above
الحل A
8- Beneath all minor connectors:
A- shaped blockout
B- parallel blockout
C- arbitrary blockout الحل B
9- tissue stop used for :
A- retention of acrylic resin bases
B- stability of framework during the stages of transfer and processing
C- all
D- none
الحل C
10- an imaginary line , connecting the occlusal rests whitch removable dental prosthesis tends to rotate under masticatory forces :
A- indirect retainer
B- fulcrum line
الحل B
11- tooth inclines and weak should used to support indirect retainer
A- true
B- false
الحل B
12- forms of indirect retainers:
A- auxiliary occlusal rest
B- auxiliary extension rest
C- canine rest
D- all
الحل D
13- direct indirect retention means :
A- full palatal coverage
14- serves as a third point of reference when orienting the framework :
A- indirect retainer
B- direct retainer
الحل A
15- indirect retainer should be close to fulcrum line :
A- true
B- false
الحل B
هذه الخمسه البحوثات وملزمة الخزف يعني ٦ مقرر علينا في الاختبار👆
2_ A broken occlusal rest is replaced by:
A- replacing the test only.
👉B- replacing the whole clasp assembly.
C- none of above.
D- all of the above.
3_ In case of broken clasp arm we replace it with:
A- remake the frame work.
B- no replacing the clasp .
👉C- casted clasp attached to the metal by soldering.
D- none of above.
12. the purpose of investing the sprue pattern is:
A, the investment material is weak
B. rough surfaces
👉C. permit escapes of gas entrapped
D. none of the above
10.clearance of' the duplicating flasks is about:
A. 2 inch
B. one inch
👉C. half inch
D. none cf the above
17- Double Aker Clasp (Embrasure Clasp) is contra-indicated in the following:
a. When splinting the adjacent two teeth is required,
👉b. Available retentive areas are only adjacent to each other.
c. On the dentulous side of unilaterai edentulous (class II, lll)
d. Provide bilateral stabilization, and bracing, in addition to retention.
e. On class IV is indicated too.
18- Compound clasp is contra-indicated in the following:
a. On the dentulous side of unilateral edentulous(class II, lll) cases having
modifications.
b. On class IV.
c. TO splint the two teeth
d. Provide bilateral stabilization, and bracing.
e. Provide retention too.
19- Occlusal rest located away from the edentulous area- Retentive arm that engages an
undercut near the edentulous area- and a rigid reciprocal arm, is called:
a. Extended clasp.
b. Compound clasp.
c. Back-action clasp.
👉d. Reverse Aker clasp.
e. None of the above.
