Iran Dental Residency Entrance Exam study guide
Iran Dental Residency Entrance Exam · Work through your exam, one topic at a time.
The Iranian dental specialty residency entrance examination (آزمون ورودی دستیاری دندانپزشکی) is the national competitive gateway through which a licensed dentist in Iran enters a formal specialty training programme - for example endodontics, periodontics, prosthodontics, orthodontics, pediatric dentistry, oral and maxillofacial pathology, radiology, medicine, or surgery. It is intended for graduates of a recognised dental doctorate who want to move from general practice into supervised hospital- or faculty-based specialty training. The Iran Dental Residency Entrance Exam study guide has 12 sections and about 4,100 words.
01Oral and Maxillofacial Pathology
The pathology section asks you to convert a clinical and radiographic picture into a recognised diagnosis and then name the microscopic or molecular feature that confirms it. Questions concentrate on cyst-versus-tumour logic, frequency data, and the relationship between a lesion and a tooth.
361 words, about 2 min02Oral and Maxillofacial Radiology
Radiology in this exam tests image formation physics, technique error recognition and the diagnostic use of radiolucency and radiopacity patterns, not equipment trivia. Paralleling technique: receptor parallel to the long axis and central ray perpendicular; least distortion, preferred whenever the patient tolerates it.
352 words, about 2 min03Oral Medicine and Oral Diagnosis
Oral medicine rewards systematic pattern recognition: site, duration, symmetry, and whether skin or systemic involvement is present. Recurrent aphthous stomatitis is the most common ulcerative disease of the mouth; minor ulcers under 1 cm healing in 7-10 days far outnumber major and herpetiform types.
325 words, about 2 min04Endodontics
Endodontic questions are usually case-based: state the pulpal and periapical diagnosis, then justify one technical decision. Cold test assesses A-delta fibres; EPT can give a false positive in a partially necrotic multirooted tooth and false negatives in calcified canals.
354 words, about 2 min05Periodontics
Periodontics is written in 2017 world workshop language, so examiners expect staging and grading vocabulary alongside classic clinical signs. Stage reflects severity and complexity: Stage I clinical attachment loss 1-2 mm, Stage II 3-4 mm, Stage III 5 mm or more with bone loss to the middle third and up to 4 teeth lost, Stage IV with 5 or more teeth lost or masticatory dysfunction.
369 words, about 2 min06Fixed Prosthodontics
Fixed prosthodontics tests the geometry of preparation, material choice by site, and the cement that matches that material. Retention comes from surface area, small taper and a single path of insertion; total convergence near 6 degrees is ideal, and retention falls sharply above 10-12 degrees.
329 words, about 2 min07Removable Prosthodontics
Removable prosthodontics is tested through design decisions: which teeth and tissues carry the load and how the prosthesis is kept in place. Kennedy classes I-IV with Applegate's rules: missing third molars do not alter classification; the most posterior edentulous area determines the class; modifications count additional edentulous areas.
334 words, about 2 min08Restorative Dentistry and Dental Materials
Restorative dentistry and materials questions join operative technique with polymer and ceramic science, usually asking why a restoration failed. Enamel bonding: 37% phosphoric acid for 15-30 seconds, then hydrophobic resin infiltration into the etch pattern.
324 words, about 2 min09Pediatric Dentistry
Paediatric dentistry tests the differences that matter: primary tooth anatomy, behaviour, growth, and the risk of injuring a developing permanent tooth. Primary molars have thin enamel, large pulp chambers, flared roots and marked cervical constriction, so pulpal involvement follows caries quickly.
340 words, about 2 min10Orthodontics
Orthodontic questions test cephalometric interpretation, classification, and the mechanical or growth-based reason for a treatment decision. SNA about 82 degrees, SNB about 80 degrees, ANB about 2 degrees; ANB above 4 degrees suggests skeletal Class II, below 0 degrees skeletal Class III.
314 words, about 2 min11Oral and Maxillofacial Surgery
Oral and maxillofacial surgery questions favour complications, anatomy and the correct sequence of management. Third molars are described by Pell and Gregory depth A-C and ramus relation I-III, plus Winter's angulation.
352 words, about 2 min12Basic Biomedical Sciences
Basic science questions are integrated rather than isolated: anatomy used during an injection, pharmacology explaining a failed block, microbiology explaining an infection. Trigeminal: V2 exits the foramen rotundum, V3 the foramen ovale; the inferior alveolar nerve enters the mandibular foramen and exits at the mental foramen; the lingual nerve carries chorda tympani fibres for submandibular and sublingual secretion.
346 words, about 2 min