Iran Dental Basic Sciences Exam study guide
Iran Dental Basic Sciences Exam · Work through your exam, one topic at a time.
The Iran Dental Basic Sciences Exam (آزمون علوم پایه دندانپزشکی) is the comprehensive basic-science assessment that Iranian dental students must clear before moving into the clinical phase of the DDS curriculum. It is designed for students who have finished the preclinical basic-science courses - anatomy, physiology, biochemistry, microbiology, general and oral pathology, pharmacology, dental materials, radiology and physics, and behavioral sciences - and who need to demonstrate that foundation before treating patients. The Iran Dental Basic Sciences Exam study guide has 9 sections and about 2,790 words.
01Anatomy (head and neck, histology, embryology)
This domain integrates regional head-and-neck anatomy, oral histology, and embryology. Questions usually link a structure to its nerve, pharyngeal-arch origin, or microscopic layer rather than asking isolated names.
368 words, about 2 min02Physiology
This domain covers organ-system physiology with emphasis on oral and craniofacial function. Expect cause-and-effect reasoning and simple calculations rather than isolated definitions.
321 words, about 2 min03Biochemistry
The exam tests metabolic pathways, their regulation, molecular biology, and the biochemical basis of oral and systemic disease. High-yield areas are energy yield, cofactors, collagen synthesis, and enzyme kinetics.
316 words, about 2 min04Microbiology and Immunology
Questions target oral microbial ecology, odontogenic and periodontal pathogens, infection control, and the immune mechanisms relevant to oral disease and vaccination. Caries initiation is linked to mutans streptococci, especially Streptococcus mutans; Lactobacillus is associated with progression; root caries involves Actinomyces.
287 words, about 1 min05Pathology (general and oral)
This domain combines general pathology mechanisms with oral and maxillofacial lesions. The exam favors diagnosis from mechanism, behavior, and microscopic pattern.
317 words, about 2 min06Pharmacology
The exam tests pharmacokinetics, autonomic drugs, local anesthetics, analgesics, antimicrobials, and dental prescribing. Calculations and safety limits are common.
300 words, about 2 min07Dental Materials
The exam tests composition, setting reactions, physical properties, and clinical failure modes of restorative, impression, and laboratory materials. Amalgam is silver-tin-copper alloy with mercury; high-copper mixes reduce gamma-2 phase and creep.
306 words, about 2 min08Oral and Maxillofacial Radiology and Physics
This domain covers x-ray production, image formation, radiation dose and protection, and radiographic interpretation, including panoramic and CBCT principles. X-rays are produced by thermionic emission at the filament; mA controls tube current and quantity; kVp controls tube voltage and penetrating quality.
301 words, about 2 min09Behavioral Sciences and Ethics
Questions test communication, consent, confidentiality, professional boundaries, and behavioral models applied to dental care. Ethical scenarios require identifying the principle in conflict.
274 words, about 1 min