Pre-Clincial OSCE Review

Question 1

What is the width of the PDL?

Answer 1

0.2mm

Question 2

What is biological width in mm?

Answer 2

2.04mm (attached gingiva= jxn epi + conn tissue)

Question 3

What is the avg depth of the gingival sulcus?

Answer 3

1.8mm

Question 4

Where is the narrow point of rotation in a root?

Answer 4

mid-root

Question 5

From GINGIVITIS to PERIODONTITIS: From G+ to ___, From cocci to _____ (later ________), From non-motile to motile, From facultative to obligate _________

Answer 5

G -, rods…spirochetes…anaerobes

Question 6

What is the “RANGE of ACTION” for a forigen object to have an effect on alveolar bone?

Answer 6

1.5 to 2.5mm

Question 7

What type of bone loss is the MOST COMMON destructive pattern?

Answer 7

horizontal bone loss

Question 8

WHat is the most common vertical wall defect?

Answer 8

HA tricked ya. is a COMBINATION

Question 9

Which vertical wall defect has the best regeneration ability?

Answer 9

a 3 wall defect

Question 10

What is the magic % for discerning localized or generalized periodontitis?

Answer 10

30% of sites-less = local, more = general

Question 11

Diagnosis ?
  39 y/o female
  Heavy plaque & calculus   PD 3-5 mm
  CAL 1-2 mm
  > 30% sites involved
  Systemically healthy

Answer 11

Generalized mild chronic

periodontitis

Question 12

Diagnosis ?
  16 y/o female
  Very little plaque and calculus
  PD 5-7 mm on incisors & 1st molars
  CAL > 5 mm
  Systemically healthy

Answer 12

Localized aggressive periodontitis

Question 13

Diagnosis ?
  26 y/o male
  Very light plaque & calculus   PD 5-9 mm
  CAL > 5 mm
  Almost all teeth involved
  Systemically healthy

Answer 13

generalized aggressive periodontitis

Question 14

OS meds-what is the abx of last resort??

Answer 14

VANCOmycin

Question 15

What are 3 meds for Tx candida?

Answer 15

nystatin, amphoteircin B, azoles

Question 16

What is the difference between a Nance and a Transpalatal Arch?

Answer 16

Nance has composite area in anterior, TPA just goes straight across palate

Question 17

What is the absolute maximum dose of 2% lidocaine?

Answer 17

300mg

Question 18

What is the absolute maximum dose of 4% septocaine?

Answer 18

500mg

Question 19

What is the max dose per pound for 2% lidocaine?

Answer 19

2mg/lb (4.4mg/kg)

Question 20

What is the max dose per pound for 4% septocaine?

Answer 20

3.5mg/lb (7mg/kg)

Question 21

How many lb in 1 kg?

Answer 21

2.2 lb / 1 kg

Question 22

How many mg of 2% lidocaine are there in 1mL of solution?

Answer 22

20mg/1mL (so 4mg/0.2mL of solution-a stopper full)

Question 23

How many mg of 4% septocaine are there in 1mL of solution?

Answer 23

40mg/1mL (so 8mg/0.2mL of solution-a stopper full)

Question 24

What are the 4 types of space maintaining applicances?

Answer 24

1.Band&Loop 2.Distal Shoe 3.TPA (Nance) 4.LLHA

Question 25

In a Tanaka-Johnson calculation, what is the magic number you add to the mandibular incisior width/2 in the maxillary/ and the mandible?

Answer 25

Max +11, Mand +10.5

Question 26

What is the typical leeway space in the maxilla? Mandible?

Answer 26

Max=1.5mm, Mand = 2.5mm

Question 27

What is the average amount to 02 flow for adults? Kiddos? What is the typical % nitrous we will administer to each?

Answer 27

adults- 6-8L/min…kiddos 4-6L/min….30% (so adults 2L/min N2O to 6L/min O2 = 33% Nitrous)

Question 28

What are the % concentrations of LA for each? Lido, Mepivicaine(carbocaine), Septo?…ORAQIX???

Answer 28

Lido-2% (36mg/1.8mL)….Mepiv-3% (54mg/1.8mL)….Speto-4%(72mg/1.8mL)…Oraqix-2.5%