DASLE State Exam Questions with
All Correct Answers
What are the rules for placement of the dental dam clamp? - Answer- - The bow of the
clamp is always placed towards (facing) the distal
- The four points of the clamp are resting below the height of contour (below the
gumline)
- The clamp is placed on the lingual side of the tooth then the buccal
List the items that can be used to invert a rubber dam - Answer- - Air
- Plastic instrument (blunt instrument)
- Waxed floss
List the hole punch numbers for each type of tooth: - Answer- - MD anterior #1
- MX anterior #2
- MX & MD cuspids and bicuspids #3
- MX & MD molars #4
- Anchor tooth #5
When is the heavier rubber dam used? - Answer- When better tissue retraction is
needed
Which dam material is used most often for endodontics? - Answer- Thin
Why is the clamp ligated with floss? - Answer- To prevent patient aspiration
What part of the clamp is the rubber dam stretched over first? - Answer- The bow
List the steps for removal of the rubber dam material: - Answer- - Remove opposite
ligatures
- Remove clamp
- Cut the dam on the facial side interdentally in the rubber dam septum
- Remove dam and frame
- Check for pieces
- Floss & massage tissue
List the uses/advantages of using the rubber dam - Answer- - Better patient
management and protection
- Controls moisture
- Decreases operator time
- Effective barrier control for infection control
- Used for RCT, Sealants, Restorations, Bleaching, not oral surgery
,Why is a rubber dam napkin used? - Answer- - Moisture control
- Latex allergies/sensitivity
- Patient comfort
Which clamp is used for a class V restoration? - Answer- Butterfly clamp 212 or 214
Which dental dam frame is placed under the dam material? - Answer- - Plastic frame
(Otsby)
- Shows as radiolucent (rays can penetrate the frame)
Which dental frame is placed on the outside of the dam material? - Answer- - Youngs
frame (metal)
- Shows as radiopaque (rays cannot penetrate)
What happens if the holes are punched too close together? - Answer- The interdental
papilla shows through
What happens if the holes are punched too far apart? - Answer- There is bunching
interproximally
What happens if the curve of the arch is punched too flat? Too narrow? - Answer- -
Bunching and stretching on lingual
- Folding and stretching on the facial
How far apart should the holes be spaced? - Answer- 3.0-3.5mm
What do the jaws of a clamp look like that has the letter 'A' following the number? -
Answer- The jaws bend sharply downward
How far from the upper edge of the dam material should the holes be punched for the
maxillary? Mandibular? - Answer- Maxillary: 1"
Mandibular: 2"
List the topical anesthetics that may have a toxic reaction. - Answer- - Tetracaine
Hydrochloride (Cetacaine)
- Betacaine Sulfate (Butyn)
Which topical is likely to cause a localized allergic reaction? - Answer- Benzocaine
Which topical medication should not be used if a patient has had a prior sensitivity to
Iodine? - Answer- Betadine
What is the most widely used topical anesthetic agent? - Answer- Lidocaine (allergies
are rare)
, List the different types of topical anesthetics: - Answer- - Liquid
- Patch
- Gel
- Ointment
- Paste
-Spray
Mandibular Nerve Block- Inferior Alveolar Injection - Answer- - Block
- Posterior to the retromolar pad
- (long needle)
- Numbs from the central incisor on a specific side to retromolar pad
- Numbs half of the tongue
Buccal Nerve Block (long buccal injection) - Answer- - Numbs the buccal tissue of MN
molars
- (long needle)
Mental Nerve Block - Answer- - Placed between the MN premolars
- Numbs from the premolars to central incisors on specific side
- Does not numb the tongue
Posterior Superior Alveolar Block - Answer- - Numbs distobuccal and lingual of 1st
molar, 2nd molar, and 3rd molars
Why and where is it necessary to add wax (wax trimming) to an alginate tray? - Answer-
- Protects tissue from injury and provides pt. comfort
- Extends the length of tray
- Add to palate (Pt. with high palate)
- Extends to borders to aid in obtaining muscle attachments
What type of wax is used for wax trimming? - Answer- Utility wax
What is the correct operator position when taking maxillary impressions? Mandibular? -
Answer- Maxillary: 11-12 (right handed) 12-1 (left handed)
Mandibular: 7:30-8 (right handed) 4:30-5 (left handed)
Why is the patient instructed to lift and extrude their tongue when taking a mandibular
impression? - Answer- Ensures the lingual aspect of the alveolar process (lingual
flange) is defined
What types of trays are used during an alginate impression and why? - Answer- -
Rimlock/Perforated
-Locks the alginate material into the tray
How is the setting time of alginate lengthened? Shortened? - Answer- Lengthened: by
using cold water
All Correct Answers
What are the rules for placement of the dental dam clamp? - Answer- - The bow of the
clamp is always placed towards (facing) the distal
- The four points of the clamp are resting below the height of contour (below the
gumline)
- The clamp is placed on the lingual side of the tooth then the buccal
List the items that can be used to invert a rubber dam - Answer- - Air
- Plastic instrument (blunt instrument)
- Waxed floss
List the hole punch numbers for each type of tooth: - Answer- - MD anterior #1
- MX anterior #2
- MX & MD cuspids and bicuspids #3
- MX & MD molars #4
- Anchor tooth #5
When is the heavier rubber dam used? - Answer- When better tissue retraction is
needed
Which dam material is used most often for endodontics? - Answer- Thin
Why is the clamp ligated with floss? - Answer- To prevent patient aspiration
What part of the clamp is the rubber dam stretched over first? - Answer- The bow
List the steps for removal of the rubber dam material: - Answer- - Remove opposite
ligatures
- Remove clamp
- Cut the dam on the facial side interdentally in the rubber dam septum
- Remove dam and frame
- Check for pieces
- Floss & massage tissue
List the uses/advantages of using the rubber dam - Answer- - Better patient
management and protection
- Controls moisture
- Decreases operator time
- Effective barrier control for infection control
- Used for RCT, Sealants, Restorations, Bleaching, not oral surgery
,Why is a rubber dam napkin used? - Answer- - Moisture control
- Latex allergies/sensitivity
- Patient comfort
Which clamp is used for a class V restoration? - Answer- Butterfly clamp 212 or 214
Which dental dam frame is placed under the dam material? - Answer- - Plastic frame
(Otsby)
- Shows as radiolucent (rays can penetrate the frame)
Which dental frame is placed on the outside of the dam material? - Answer- - Youngs
frame (metal)
- Shows as radiopaque (rays cannot penetrate)
What happens if the holes are punched too close together? - Answer- The interdental
papilla shows through
What happens if the holes are punched too far apart? - Answer- There is bunching
interproximally
What happens if the curve of the arch is punched too flat? Too narrow? - Answer- -
Bunching and stretching on lingual
- Folding and stretching on the facial
How far apart should the holes be spaced? - Answer- 3.0-3.5mm
What do the jaws of a clamp look like that has the letter 'A' following the number? -
Answer- The jaws bend sharply downward
How far from the upper edge of the dam material should the holes be punched for the
maxillary? Mandibular? - Answer- Maxillary: 1"
Mandibular: 2"
List the topical anesthetics that may have a toxic reaction. - Answer- - Tetracaine
Hydrochloride (Cetacaine)
- Betacaine Sulfate (Butyn)
Which topical is likely to cause a localized allergic reaction? - Answer- Benzocaine
Which topical medication should not be used if a patient has had a prior sensitivity to
Iodine? - Answer- Betadine
What is the most widely used topical anesthetic agent? - Answer- Lidocaine (allergies
are rare)
, List the different types of topical anesthetics: - Answer- - Liquid
- Patch
- Gel
- Ointment
- Paste
-Spray
Mandibular Nerve Block- Inferior Alveolar Injection - Answer- - Block
- Posterior to the retromolar pad
- (long needle)
- Numbs from the central incisor on a specific side to retromolar pad
- Numbs half of the tongue
Buccal Nerve Block (long buccal injection) - Answer- - Numbs the buccal tissue of MN
molars
- (long needle)
Mental Nerve Block - Answer- - Placed between the MN premolars
- Numbs from the premolars to central incisors on specific side
- Does not numb the tongue
Posterior Superior Alveolar Block - Answer- - Numbs distobuccal and lingual of 1st
molar, 2nd molar, and 3rd molars
Why and where is it necessary to add wax (wax trimming) to an alginate tray? - Answer-
- Protects tissue from injury and provides pt. comfort
- Extends the length of tray
- Add to palate (Pt. with high palate)
- Extends to borders to aid in obtaining muscle attachments
What type of wax is used for wax trimming? - Answer- Utility wax
What is the correct operator position when taking maxillary impressions? Mandibular? -
Answer- Maxillary: 11-12 (right handed) 12-1 (left handed)
Mandibular: 7:30-8 (right handed) 4:30-5 (left handed)
Why is the patient instructed to lift and extrude their tongue when taking a mandibular
impression? - Answer- Ensures the lingual aspect of the alveolar process (lingual
flange) is defined
What types of trays are used during an alginate impression and why? - Answer- -
Rimlock/Perforated
-Locks the alginate material into the tray
How is the setting time of alginate lengthened? Shortened? - Answer- Lengthened: by
using cold water
