MDS PREP
Identify the correct statement regarding junctional epithelium
1) Lines the gingival sulcus
2) Is permeable to bacterial toxins
3) Attached to enamel by desmosomes
4) None of the above
Periodontics
Answer: 2
Which of the following fluoroquinolones does not require dose adjustment in a patient with creatinine clearance of < 50mg/min?
1) Ciprofloxacin
2) Trovafloxacin
3) Lomefloxacin
4) Sparfloxacin
Pharmacology Answer: 2
Fluoroquinolones that are excreted mainly by non renal mechanisms:
Pefloxacin Trovafloxacin Grepofloxacin Nalidixic acid
In which disease state do the cartilage columns lack orderly arrangement, fail to calcify properly and are not resorbed and replaced by bone in the usual fashion?
1) Osteopetrosis
2) Cherubism
3) Pierre-Robin syndrome
4) Achondroplasia
Oral Pathology
Answer: 4
A 45-year-old man who is on dicoumoral therapy requires a tooth extraction. His medical history indicated myocardial infarction two years ago. This patient is receiving anticoagulant drugs. The dentist should
1) Never operate on this patient
2) To avoid postoperative haemorrhage advice vitamin K
3) Perform surgery if prothrombin time is 18 seconds
4) None of the above
Oral Surgery
Answer: 3
Respiration in stage IV general anaesthesia is characterised by
1. Thoracoabdominal in nature
2. Abdominothoracic in nature
3. Deep and irregular
4. Absent
Oral Surgery
Answer: 4
Toxicity of local anaesthesia is reserved by
1) IV epinerphrine
2) IV nalorphine
3) IV barbiturates
4) IV sodium bicarbonate
Oral Surgery
Answer: 3
The sinus is most frequently involved in extractions of the
1. maxillary first molar
2. mandibular third molar
3. maxillary canine
4. maxillary first premolar
Oral Surgery
Answer: 1
In which of the following, true pocket formation cannot occur
1. ANUG
2. Adult periodontitis
3. Rapidly progressing periodontitis
4. Juvenile periodontitis
Pedodontics
Answer: 1
True pocket formation cannot occur in ANUG.