الدفعة الرابعة والعشرون طب الأسنان جامعة ذمار
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Periodontitis: Staging and Grading. Dr. Diana Mostafa
https://youtube.com/watch?v=aE8FhRkn52I&si=Z5IVO5D1AuJbHaTK
لو الدكتور جاب هذا السؤال
Uses of epidemiology
ايش بتكتب له الاعلى ام الاسفل
Diseases Determinant:
1-•Agent factors refer to an infectious microorganism—
virus, bacteria, parasite, or other microbes.
•They are necessary but not always sufficient
alone to cause disease.
2-•Host factors are intrinsic factors that influence an
individual’s exposure, susceptibility, or response to a
causative agent.( age, nutrition, immunity, race,…)
3-•Environmental factors are extrinsic factors which
affect the agent and the opportunity for exposure.
The action of aspirin that results in
its greater efficacy as an
antithrombotic (anti-platelet) drug is its ability to
The cyclooxygenase isoenzymes
COX-1 and COX-2 differ from each
other in that:
