اکنون در دسترس! پژوهش تلگرام ۲۰۲۵ — مهمترین بینشهای سال 
Dental Space
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كل شي يخص طب الاسنان القناة بيها مصادر و شرحيات و كويزات صاحب القناة :- مصطفى إبراهيم اسماعيل @h4mr2 رابط متجر المستلزمات :- https://t.me/dentalspacesuppiles تاريخ انشاء القناة :- 2022/3/20
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13. Clinical case
A 28-year-old patient presents with a chief complaint of lingering pain in their upper left central incisor after drinking cold liquids. The tooth is restored with a porcelain jacket crown. The clinician applies a cotton pellet saturated with ethyl chloride to the middle third of the crown. The patient reports sharp, severe pain that continues to ache for 20 seconds after the pellet is removed. Based on the provided text, what is the most likely diagnostic conclusion?
A) The tooth pulp is healthy and showing a baseline/normal response.
B) The tooth is completely non-vital (necrotic).
C) The tooth exhibits signs of irreversible pulpitis.
D) The test is invalid because cold testing cannot be performed on porcelain jacket crowns.
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12. What physiological mechanism explains why cold testing causes a pain response in a vital tooth pulp?
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11. When performing a clinical percussion test, which direction should the tooth crown be tapped first, and what does sensitivity to this movement primarily indicate?
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10. Which of the following is a UNIQUE disadvantage of bis-acryl composites compared to acrylics?
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9. A crown that shows perfect proximal contact but fails to seat completely intraorally is MOST likely due to:
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8. All of the following are provided after proper polishing, except:
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6. All are INCORRECT about "double mix impression technique' EXCEPT that
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5. During lateral movement in the horizontal plane, the nonworking condyle moves:
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4. In sagittal plane mandibular movement, pure rotation is limited to approximately:
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3. Phenomenon occurring when the color of the two objects appear to match under one lighting source but not under a different source , this Phenomenon called
