Which of the following is incorrect when applying the forceps to the tooth for extraction?
1. The direction of the beaks should be parallel to the long axis of the tooth
2. The forceps should be grasped firmly
3. The lingual beak should be placed first, then the buccal
4. The beaks should be placed on the crown and above the cementoenamel junction
Oral SurgeryAnswer: 4
"Hanging drop" sign in the maxillary sinus radiograph usually indicates 1. Nasal bone fracture 2. Orbital floor blow out fracture 3. Condylar fracture 4. None of the above
Oral SurgeryAnswer: 2
Koplik’s spots can be seen in
1. infectious mononucleosis
2. Fordyce’s disease
3. chicken pox
4. measles
Oral SurgeryAnswer: 4
During the extraction of maxillary first molar, the palatel root tip of molar slipped into the maxillary sinus. Proper way to approach to recovery is through the 1) Same socket by enlarging the opening through which the root entered the sinus 2) Maxillary incisive fossa 3) Maxillary incisive fossa medial to canine 4) None of the above
Oral SurgeryAnswer: 2
When using nitrous oxide as a general anesthetic agent, what is the lowest acceptable concentration of oxygen?
1. 90%
2. 5%
3. 80%
4. 20%
Oral SurgeryAnswer: 4
Prophylactic antibiotic coverage before dental extraction is indicated for patients with each of the following conditions except 1) Kidney damage needing haemodialysis 2) Prosthetic aortic valve 3) Rheumatic heart disease 4) Coronary artery bypass
Oral SurgeryAnswer: 4
Which of the following should be included in the preoperative orders? 1) NPO from midnight 2) Take written informed consent 3) Void on call to the OR 4) All of the above
Oral SurgeryAnswer: 4
Facial paresis following maxillofacial fracture is most common in 1. # of the condylar neck 2. # of the nasal bones 3. # of the zygomatico maxillary complex 4. # of the mandibular symphysis
