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Key Facts: Iran OMFS Board Exam Exam

100 MCQs

Written examination questions in a single 100-minute session

Council for Dental and Specialized Education & Sanjesh Pezeshki

70% Pass Mark

Minimum qualifying score required to advance to the clinical oral/OSCE exam

Sanjesh Pezeshki Board Examination Bylaws

No Negative Marking

Candidates are advised to answer every question without penalty for wrong answers

Sanjesh Pezeshki Examination Rules

5-Year Residency

Accredited hospital-based oral and maxillofacial surgery training required for eligibility

Iranian Ministry of Health and Medical Education

6 Specialty Domains

Trauma, Orthognathics, Dentoalveolar, Pathology/Recon, Infections, and TMJ/Implants

National OMFS Board Curriculum Blueprint

The Iranian Oral and Maxillofacial Surgery Specialty Board Examination is a premier two-stage assessment administered by Sanjesh Pezeshki. The written component consists of 100 four-option MCQs across 100 minutes without negative marking, requiring a 70% qualifying score to advance to the clinical oral/OSCE examination. This 100-question practice set provides specialty-level preparation across all six blueprint domains.

Sample Iran OMFS Board Exam Practice Questions

Try these sample questions to review concepts for the Iran OMFS Board Exam exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to the Pell and Gregory classification for impacted mandibular third molars, which description characterizes a Class II, Position B impaction?

A.The space between the anterior border of the ramus and the second molar is less than the crown diameter, and the occlusal plane of the third molar is between the occlusal surface and cervical line of the second molar.

B.The crown is completely anterior to the anterior border of the ramus, and the occlusal plane is at or above the occlusal surface of the adjacent second molar.

C.The crown is completely embedded within the mandibular ramus, and the occlusal plane is located below the cervical line of the second molar.

D.The space between the anterior border of the ramus and the second molar exceeds the crown diameter, and the tooth is deeply submerged below the cervical line.

Explanation: Pell and Gregory Class II indicates that the space between the anterior border of the ascending ramus and the distal surface of the second molar is less than the mesiodistal diameter of the third molar crown. Position B indicates that the occlusal surface of the impacted tooth lies between the occlusal plane and the cervical line of the adjacent second molar.

2Based on Winter's classification of mandibular third molar impactions, which spatial angulation carries the greatest risk of iatrogenic mandibular angle fracture if excessive elevator force is applied without adequate bone removal?

A.Mesioangular impaction

B.Distoangular impaction

C.Vertical impaction

D.Transverse buccal impaction

Explanation: Distoangular impactions present a path of delivery that directs the crown toward the ascending ramus. Elevating a distoangular tooth requires significant distal bone guttering; applying unguided force wedges the tooth directly against the ramus cortex, creating intense stresses that predispose to mandibular angle fracture.

3Which clinical finding represents an absolute contraindication to performing an intentional coronectomy (partial odontectomy) on an impacted mandibular third molar?

A.Intimate radiographic contact between the mandibular canal cortication and third molar root apices

B.Absence of inferior alveolar canal cortication with canal narrowing across the root middle third

C.Preexisting periapical infection or active pulpal pathology in the impacted tooth

D.Divergent root anatomy with grooving caused by the inferior alveolar neurovascular bundle

Explanation: Intentional coronectomy leaves retained root fragments that must remain vital and free of infection to heal without forming a secondary deep osteomyelitis or persistent foreign-body reaction. Preexisting pulpal necrosis, periapical radiolucency, or active local infection is an absolute contraindication.

4During extraction of an isolated maxillary first molar, a fresh 3 mm acute oroantral communication without sinus disease is detected. What is the most appropriate initial management?

A.Immediate elevation of an anterior-based palatal rotational artery flap to achieve water-tight closure

B.Radical Caldwell-Luc procedure combined with nasal antrostomy to evacuate the sinus contents

C.No surgical intervention, leaving the alveolus open to heal by secondary intention

D.Placement of a resorbable gelatin sponge and figure-of-eight suture over the socket with sinus precautions

Explanation: Small acute communications measuring 2 mm to 5 mm without preexisting sinusitis typically heal uneventfully by secondary intention if a stable blood clot is maintained. Stabilization with a gelatin sponge or collagen plug, figure-of-eight suturing, and strict sinus precautions (avoiding nose blowing, sneezing with mouth open, and systemic decongestants) is the standard protocol.

5Which arterial vessel serves as the primary axial blood supply when mobilizing the buccal fat pad pedicled flap for closure of a large posterior maxillectomy or oroantral defect?

A.Buccal branch of the maxillary artery

B.Greater palatine artery

C.Ascending pharyngeal artery

D.Infraorbital artery

Explanation: The buccal fat pad receives a rich axial and anastomotic vascular network, with the principal feeding vessels being the buccal and deep temporal branches of the maxillary artery, complemented by the transverse facial artery and facial artery branches.

6A 68-year-old edentulous patient presents with multiple redundant folds of firm, fibrous tissue in the anterior maxillary labial sulcus caused by an ill-fitting overextended denture border. What is the standard surgical management for this epulis fissuratum?

A.Immediate segmental alveolectomy with primary closure

B.Excision of the redundant hyperplastic folds down to periosteum followed by denture reline or adjustment

C.High-dose intralesional corticosteroid injections every week until complete lesion regression

D.Radical vestibuloplasty with immediate full-thickness skin grafting

Explanation: Epulis fissuratum represents chronic inflammatory fibrous hyperplasia from chronic mechanical irritation. Conservative surgical excision of the redundant fibrous rolls along the base of the fold while preserving underlying periosteum, combined with relining or remaking the prosthesis with proper border extension, is the definitive treatment.

7In preprosthetic ridge extension, how does Clark's mandibular vestibuloplasty fundamentally differ from the Kazanjian technique?

A.Clark's technique utilizes a split-thickness mucosal graft, whereas Kazanjian utilizes a full-thickness cutaneous graft.

B.Clark's technique detaches the mentalis muscle from the inferior border, whereas Kazanjian preserves the mentalis entirely.

C.Clark's technique transposes the labial mucosal flap to cover the exposed alveolar periosteum, leaving the labial surface to epithelialize.

D.Clark's technique leaves the alveolar periosteum uncovered to epithelialize by secondary intention.

Explanation: In Clark's vestibuloplasty, the incision is made in the labial mucosa of the lip, and a flap of mucosa is dissected and sutured down to the deep periosteum at the base of the new vestibular depth on the alveolar side. The raw denuded wound is left on the mobile labial/lip surface, which contracts less and avoids stripping the alveolar bone.

8During surgical excision of a prominent lobulated torus palatinus, which major anatomical complication is most commonly associated with aggressive vertical rotary instrumentation in the midline?

A.Perforation into the nasal cavity floor

B.Laceration of the descending palatine artery in the pterygopalatine fossa

C.Transection of the sphenopalatine ganglion

D.Fracture of the hamulus of the medial pterygoid plate

Explanation: The palatal vault separates the oral cavity from the floor of the nasal cavity. The bone underlying a midline torus palatinus can be surprisingly thin; aggressive troughing or rotary cutting in a vertical orientation easily penetrates the thin cortical plate, leading to nasal floor perforation and oronasal communication.

9An impacted maxillary canine is located high in the labial alveolar bone, apical to the mucogingival junction. Which surgical exposure technique is mandatory to ensure an adequate zone of attached keratinized gingiva following orthodontic eruption?

A.Simple circular gingivectomy (window excision) over the crown

B.Open exposure with packing leaving the coronal bone completely exposed

C.Closed eruption technique with a full-thickness palatal reflection

D.Apically positioned flap incorporating the attached gingiva onto the tooth collar

Explanation: When an impacted canine is positioned apical to the mucogingival junction on the labial aspect, a simple excisional window leaves the tooth erupting through non-keratinized alveolar mucosa, causing severe recession and periodontal compromise. An apically positioned flap preserves the band of attached gingiva and repositions it around the erupting tooth collar.

10A 62-year-old patient taking warfarin for atrial fibrillation requires extraction of two mobile mandibular premolars. The patient's INR measured on the morning of surgery is 2.8. According to current evidence-based surgical guidelines, what is the appropriate management?

A.Withhold warfarin for 5 days prior to surgery and bridge with subcutaneous low-molecular-weight heparin.

B.Proceed with extractions without altering warfarin dosage, utilizing local hemostatic agents and suturing.

C.Administer 5 mg of oral vitamin K on the morning of surgery to reduce the INR below 1.5.

D.Defer surgery and request the cardiologist to switch the patient permanently to aspirin.

Explanation: Extensive randomized clinical trials and international consensus guidelines confirm that for minor dentoalveolar surgery, interrupting warfarin is unnecessary and increases thromboembolic risk. Patients with a stable therapeutic INR between 2.0 and 3.5 can undergo routine extractions safely using local hemostatic measures such as oxidized cellulose, tranexamic acid mouthwash, and primary sutures.

About the Iran OMFS Board Exam Exam

The Iranian Dental Specialty Board Examination in Oral & Maxillofacial Surgery (آزمون دانشنامه تخصصی جراحی دهان، فک و صورت) is the definitive terminal credential for oral and maxillofacial surgeons in the Islamic Republic of Iran. Administered annually by the National Center for Health Assessment (مرکز سنجش آموزش پزشکی - Sanjesh Pezeshki) in collaboration with the Secretariat of the Council for Dental and Specialized Education under the Ministry of Health and Medical Education (MOHME), the examination validates surgical competence following the completion of a rigorous 5-year accredited hospital residency program. The written paper consists of 100 high-level multiple-choice questions assessing six core domains: Dentoalveolar & Preprosthetic Surgery (~15%), Maxillofacial Trauma (~20%), Orthognathic Surgery & Dentofacial Deformities (~20%), Cysts, Tumors & Reconstruction (~15%), Maxillofacial Infections & Osteomyelitis (~15%), and TMJ, Salivary Glands & Implantology (~15%). In accordance with national board regulations, there is no negative marking, and candidates must attain a strict cut score of 70% (70 out of 100 correct) to qualify for the subsequent practical, OSCE, and oral surgical defense examination. Achieving the board diploma (Daneshnameh) is legally required for academic faculty appointment and hospital surgical privileges in Iran. This practice question bank is an independent English-language MCQ study adaptation created by OpenExamPrep. It offers 100 rigorous specialty-level questions keyed to core curricular authorities, including Contemporary Oral and Maxillofacial Surgery (Hupp, Ellis, Tucker), Maxillofacial Trauma (Fonseca), and standard surgical literature. It is not an official translation and is not affiliated with or endorsed by Sanjesh Pezeshki or the Council for Dental and Specialized Education.

Exam sponsor: National Center for Health Assessment / Sanjesh Pezeshki & Council for Dental and Specialized Education. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The Iranian Dental Specialty Board Examination in Oral and Maxillofacial Surgery is administered annually (traditionally in late summer / Shahrivar) by Sanjesh Pezeshki under the Council for Dental and Specialized Education. It comprises two mandatory sequential phases: (1) A comprehensive written examination featuring 100 multiple-choice questions (100 minutes, 4 options, no negative marking, requiring 70% to pass); and (2) An advanced clinical and oral board stage (OSCE, radiographic interpretation, case portfolio defense, surgical technique stations, and structured clinical scenarios) reserved for candidates who clear the written hurdle. Both stages must be passed to earn the prestigious Daneshnameh Takhasosi (National Board Certification).

Time Limit

100 minutes

Passing Score

70%

Exam / Certification Fees

Set annually by the Ministry of Health and Medical Education, payable online via sanjeshp.ir during official board examination registration

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

15%

Dentoalveolar Surgery, Complex Extractions & Preprosthetic Surgery

Surgical management of impacted third molars and canines, coronectomy criteria, oroantral communication closure (buccal fat pad, palatal flaps), preprosthetic vestibuloplasty, alveolar ridge augmentation, and MRONJ management.

20%

Maxillofacial Trauma & Fracture Management

Mandibular fracture fixation principles (Champy vs load-bearing AO/ASIF), condylar fracture open vs closed reduction, Le Fort I, II, III fractures, zygomaticomaxillary complex (ZMC) reconstruction, orbital floor repair, and frontal sinus trauma.

20%

Orthognathic Surgery & Dentofacial Deformities

Le Fort I maxillary osteotomies, bilateral sagittal split osteotomy (BSSO), intraoral vertical ramus osteotomy (IVRO), sliding genioplasty, distraction osteogenesis, virtual surgical planning, and surgical management of obstructive sleep apnea.

15%

Odontogenic & Non-Odontogenic Cysts, Tumors & Reconstructive Surgery

Histopathologic classification and surgical ablation of ameloblastoma, odontogenic keratocyst (OKC), odontogenic myxoma, fibro-osseous lesions, microvascular free tissue transfer (fibular, radial forearm), and reconstruction plates.

15%

Maxillofacial Infections, Fascial Space Management & Osteomyelitis

Surgical anatomy of deep neck spaces, Ludwig angina airway management, surgical drainage techniques, descending necrotizing mediastinitis, odontogenic microbiology, suppurative osteomyelitis, and osteoradionecrosis (ORN).

15%

TMJ Disorders, Salivary Gland Pathology & Dental Implantology

TMJ internal derangements (Wilkes classification), arthrocentesis, open joint disc stabilization, total joint prostheses, salivary gland benign and malignant neoplasms, sialolithiasis, advanced sinus elevation, and surgical implantology.

Preparing for the Iran OMFS Board Exam Exam

What You Need to Know

Passing score: 70%
Assessment: The Iranian Dental Specialty Board Examination in Oral and Maxillofacial Surgery is administered annually (traditionally in late summer / Shahrivar) by Sanjesh Pezeshki under the Council for Dental and Specialized Education. It comprises two mandatory sequential phases: (1) A comprehensive written examination featuring 100 multiple-choice questions (100 minutes, 4 options, no negative marking, requiring 70% to pass); and (2) An advanced clinical and oral board stage (OSCE, radiographic interpretation, case portfolio defense, surgical technique stations, and structured clinical scenarios) reserved for candidates who clear the written hurdle. Both stages must be passed to earn the prestigious Daneshnameh Takhasosi (National Board Certification).
Time limit: 100 minutes
Exam / certification fees: Set annually by the Ministry of Health and Medical Education, payable online via sanjeshp.ir during official board examination registration Official sources

Using Our Practice Resources

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Iran OMFS Board Exam: Suggested Study Strategy

1Master the surgical anatomy and boundary structures of head and neck fascial spaces, especially the danger space, submandibular space, and lateral pharyngeal space.

2Review the clinical indications for open versus closed reduction of mandibular condylar fractures according to Zide and Kent criteria and modern endoscopic approaches.

3Thoroughly understand the biological rationale, vascular pedicles, and complication management of the Le Fort I osteotomy and bilateral sagittal split osteotomy (BSSO).

4Memorize the diagnostic criteria, recurrence profiles, and surgical resection margins for odontogenic keratocysts (OKC) and solid/multicystic ameloblastomas.

5Practice clinical pacing: with 100 questions in 100 minutes, aim for approximately 1.0 minutes per question, leaving 10 minutes at the end to review flagged items.

Frequently Asked Questions

What is the format and duration of the written Iranian OMFS Board Examination?

The written examination consists of 100 four-option multiple-choice questions administered over a single 100-minute testing session. There is no negative marking for incorrect responses.

What passing score is required to qualify for the oral and clinical practical board exam?

Candidates must achieve a minimum score of 70% (70 out of 100 correct answers) on the written exam to be permitted to take the clinical OSCE, case scenario, and oral examination.

What are the primary reference textbooks specified for the Iranian OMFS Board?

The core national curriculum references include Contemporary Oral and Maxillofacial Surgery (Hupp, Ellis, Tucker) and Oral and Maxillofacial Trauma (Fonseca), supplemented by recognized reference texts in orthognathic surgery, oral pathology, and reconstructive surgery.

Who is eligible to register for the Iranian Dental Specialty Board in Oral & Maxillofacial Surgery?

Senior dental residents who have completed their accredited 5-year oral and maxillofacial surgery residency program and passed their university-level pre-board certification examinations are eligible to sit for the National Board.

What happens if a candidate passes the written exam but fails the clinical/oral exam?

Under Ministry of Health regulations, candidates who clear the written milestone (>=70%) can typically carry over their written passing status for a designated number of subsequent sittings to retake the clinical/oral examination.

Is this OpenExamPrep question bank an official Sanjesh Pezeshki product?

No. This question bank is an independent English-language educational adaptation authored by OpenExamPrep for residency review and specialty preparation. It is not sponsored, endorsed by, or affiliated with Sanjesh Pezeshki or the Ministry of Health and Medical Education.