DIAGNOSTIC SKILLS OSCE EXAM SCRIPT
VERIFIED QUESTIONS AND SOLUTIONS
COMPLETE REVIEW MATERIAL
●● Basic extraction skills station - recommended approach
Answer: You are required to inform the examiner if you are right-handed
or left-handed
1. PPE - mask and visor, wash hands, then gloves (must use correct
order)
2. Select correct forceps for tooth AND handedness
3. Patient positioning
4. Operator positioning
5. Hold forceps correctly - from underneath and curve of handle resting
in palm of hand
6. Apply forceps correctly - blades applied bucco-lingually into gingival
crevice, vertically down long axis of tooth
7. Remove fingers from between handles
8. Position supporting hand correctly
9. Use correct movement for forceps
10. Extract correct tooth
●● Forceps for extractions - upper
Answer: 94 forceps - upper right molars (UR6,7,8)
,95 forceps - upper left molars (UL6,7,8)
76 (or 76n) forceps - upper premolars (UR/L4,5)
--> can get right handed AND left handed versions of these
29 (or 29s) forceps - upper incisors and canines (UR/L1,2,3)
●● Forceps for extractions - lower
Answer: 73 forceps - lower molars (LR/L6,7,8)
74 (or 74n) forceps - lower premolars and canines (LR/L3,4,5)
74n forceps - lower incisors (LR/L1,2)
●● Patient position for extractions
Answer: Upper - head between elbow and shoulder (move chair to
highest it goes, patient at 60% back to upright
Lowers - head at elbow height, patient sat straight up
●● Operator position for extractions
Answer: Stood in front right for upper right, upper left and lower left
Stood behind right for lower right
●● Supporting hand positioning for extractions
Answer: Upper right and upper left - finger and thumb protecting
alveolus, other fingers outside mouth
,Lower left - first finger buccal and second finger lingual and thumb
under jaw to support mandible
Lower right (stood behind patient) - arm comes round patient's left
shoulder, thumb lingual and first finger buccal protecting alveolus, other
fingers below jaw supporting mandible
●● Movement of 94/95 forceps for extractions
Answer: For upper molars
Steady buccal movements - buccal, back to midline
Until tooth gets to 45 degrees
Repeat until tooth is mobile
Then deliver buccally
NO PALATAL MOVEMENT
●● Movement of 76 (or 76n) forceps for extractions
Answer: For upper premolars
Steady buccal movements
Until tooth gets to 45 degrees
When mobile, shimmy to lift tooth out
●● Movement of 29 (or 29s) forceps for extractions
Answer: For upper incisors/canines
Buccal movements then a slight bit of rotation to take the tooth out
, ●● Movement of 73 forceps for extractions
Answer: For lower molars
Steady buccal movements until tooth is at 45 degrees
Then figure of 8 movement (lingual and buccal) and deliver buccally
●● Movement of 74 (or 74n) forceps for extractions
Answer: For lower premolars/canines
Rotate until mobile
Then deliver buccally using steady buccal movement
●● Movement of 74n forceps for extractions
Answer: For lower incisors
Steady buccal/lingual movements until mobile maybe with some
rotation
Then deliver buccally
●● Extra-oral examination station - recommended approach:
Answer: 1. PPE - mask and visor, wash hands, gloves
2. Introduction to patient and explanation of procedure
3. Oral history - ask patient if they have experienced any pain/swelling
around the head/neck
VERIFIED QUESTIONS AND SOLUTIONS
COMPLETE REVIEW MATERIAL
●● Basic extraction skills station - recommended approach
Answer: You are required to inform the examiner if you are right-handed
or left-handed
1. PPE - mask and visor, wash hands, then gloves (must use correct
order)
2. Select correct forceps for tooth AND handedness
3. Patient positioning
4. Operator positioning
5. Hold forceps correctly - from underneath and curve of handle resting
in palm of hand
6. Apply forceps correctly - blades applied bucco-lingually into gingival
crevice, vertically down long axis of tooth
7. Remove fingers from between handles
8. Position supporting hand correctly
9. Use correct movement for forceps
10. Extract correct tooth
●● Forceps for extractions - upper
Answer: 94 forceps - upper right molars (UR6,7,8)
,95 forceps - upper left molars (UL6,7,8)
76 (or 76n) forceps - upper premolars (UR/L4,5)
--> can get right handed AND left handed versions of these
29 (or 29s) forceps - upper incisors and canines (UR/L1,2,3)
●● Forceps for extractions - lower
Answer: 73 forceps - lower molars (LR/L6,7,8)
74 (or 74n) forceps - lower premolars and canines (LR/L3,4,5)
74n forceps - lower incisors (LR/L1,2)
●● Patient position for extractions
Answer: Upper - head between elbow and shoulder (move chair to
highest it goes, patient at 60% back to upright
Lowers - head at elbow height, patient sat straight up
●● Operator position for extractions
Answer: Stood in front right for upper right, upper left and lower left
Stood behind right for lower right
●● Supporting hand positioning for extractions
Answer: Upper right and upper left - finger and thumb protecting
alveolus, other fingers outside mouth
,Lower left - first finger buccal and second finger lingual and thumb
under jaw to support mandible
Lower right (stood behind patient) - arm comes round patient's left
shoulder, thumb lingual and first finger buccal protecting alveolus, other
fingers below jaw supporting mandible
●● Movement of 94/95 forceps for extractions
Answer: For upper molars
Steady buccal movements - buccal, back to midline
Until tooth gets to 45 degrees
Repeat until tooth is mobile
Then deliver buccally
NO PALATAL MOVEMENT
●● Movement of 76 (or 76n) forceps for extractions
Answer: For upper premolars
Steady buccal movements
Until tooth gets to 45 degrees
When mobile, shimmy to lift tooth out
●● Movement of 29 (or 29s) forceps for extractions
Answer: For upper incisors/canines
Buccal movements then a slight bit of rotation to take the tooth out
, ●● Movement of 73 forceps for extractions
Answer: For lower molars
Steady buccal movements until tooth is at 45 degrees
Then figure of 8 movement (lingual and buccal) and deliver buccally
●● Movement of 74 (or 74n) forceps for extractions
Answer: For lower premolars/canines
Rotate until mobile
Then deliver buccally using steady buccal movement
●● Movement of 74n forceps for extractions
Answer: For lower incisors
Steady buccal/lingual movements until mobile maybe with some
rotation
Then deliver buccally
●● Extra-oral examination station - recommended approach:
Answer: 1. PPE - mask and visor, wash hands, gloves
2. Introduction to patient and explanation of procedure
3. Oral history - ask patient if they have experienced any pain/swelling
around the head/neck
