The most common cause of postoperative wound infection following clean-contaminated oral surgery is: A) Pseudomonas aeruginosa B) Staphylococcus aureus C) Viridans group Streptococci D) Bacteroides fragilis
The nerve most likely to be injured during removal of a mesioangular impacted mandibular third molar is: A) Lingual nerve B) Buccal nerve C) Inferior alveolar nerve D) Myohyoid nerve SECTION 3: ODONTOGENIC INFECTIONS (Q13-18) Q13. A patient presents with brawny, non-pitting induration of the submandibular and sublingual spaces, elevation of the tongue, and difficulty breathing. This is: A) Ludwig’s angina B) Parapharyngeal abscess C) Peritonsillar abscess D) Mumps mcq in oral and maxillofacial surgery pdf
The most common causative organism in severe odontogenic infections is: A) Peptostreptococcus B) Streptococcus anginosus (milleri group) C) Actinomyces israelii D) Eikenella corrodens The most common cause of postoperative wound infection
In a patient with a severe facial cellulitis and trismus (mouth opening <10mm), the most appropriate next step after IV antibiotics is: A) Discharge with oral antibiotics B) Surgical exploration and drainage under general anesthesia C) High-dose corticosteroids D) Heat therapy SECTION 4: MAXILLOFACIAL TRAUMA (Q19-25) Q19. A patient involved in a RTA has bilateral periorbital ecchymosis (raccoon eyes) and clear rhinorrhea. You suspect: A) Zygomatic fracture B) Le Fort II or III fracture with possible CSF leak C) Naso-orbito-ethmoid (NOE) fracture D) Simple nasal bone fracture A patient involved in a RTA has bilateral
The nerve at greatest risk during bilateral sagittal split osteotomy (BSSO) is: A) Lingual nerve B) Inferior alveolar nerve C) Facial nerve (marginal mandibular) D) Mental nerve