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Why is it important to learn the different techniques necessary to produce a successful restoration for the patient - ANSWER-In case the EFDA is required to fill it someday
What is the primary goal of an EFDA and restoring occlusion - ANSWER- Maintain favorable occlusal relationship and do nothing to alter it
Where would the EFDA placed the first layer of amalgam in an MO restoration of tooth 18 - ANSWER-Least accessible area
Basic remediable intraoral tasks and/or procedures include all of the following
except:
- impressions for diagnostic models or mouthguard
- suture removal
- placement of gingival retraction cord prior to direction impression
- placement of surgical dressings - ANSWER-3. placement of gingival retraction
cord prior to direction impression
The following statements all apply to direct supervision except:
- dentist is physically present during the performance of delegated "acts"
- dentist checks the pt before pt leaves the office 1 / 4
pg. 2
- dentist is personally operating on a pt
- delegated procedures are performed pursuant to dentist's order and under his/her
license - ANSWER-3. dentist is personally operating on a pt
When should the EFDA select a shade for composite resin placement?
- any time during the procedure
- after isolation
- before isolation
- when teeth are completely dry - ANSWER-3. before isolation
The following statements are true regarding the dental pulp except one. Which one is the exception?
- provides nutrients + fluids to the dentin thru the blood supply
- contains nerve fibers that mediate pain sensations
- contains odontoblasts which help form primary, secondary, and reparative dentin
- increases in size with age - ANSWER-4. increases in size with age
On a tooth with extensive gingival recession below the CEJ, which of the following would be visible?
- anatomical crown
- clinical crown
- anatomical + clinical crown
- anatomical + clinical root - ANSWER-3. anatomical + clinical crown
Which of the following statements most accurately describes the periodontium?
- the oral hard + soft tissues that support the teeth 2 / 4
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- enamel + cementum located on the exterior surfaces of the teeth
- soft tissue that is loosely attached to the underlying bone
- cuff of tissue that is not attached to the tooth - ANSWER-1. the oral hard + soft
tissues that support the teeth
When would an open sandwich technique with GI be recommended?
- whenever a metal matrix band is used
- whenever the gingival margin of the proximal box is deeper than ideal
- it is recommended with every class II composite restoration
- when the proximal box is wider buccolingually than ideal - ANSWER-2.
whenever the gingival margin of the proximal box is deeper than ideal
Which of the following materials should not be placed directly on dentin d/t the irritation it may cause to the tooth?
- copal varnish
2. GI
- zinc phosphate cement
- calcium hydroxide - ANSWER-3. zinc phosphate cement
Which of the following statements is true regarding GI?
- GI is more abrasion-resistant than amalgam
- GI is more moisture-sensitive than composite
- GI provides better esthetics than composite
- GI bonds chemically and mechanically to dentin - ANSWER-4. GI bonds
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chemically and mechanically to dentin
pg. 4 Tooth #19 MODB RUC is to be restored with amalgam. The overfill on the distal
+ distobuccal cusps should be:
- equal to the cavosurface margin
- to the desired final height of the restoration
- slightly higher occlusally than the neighboring cusp of the adjacent tooth
- slightly shorter than desired final height of restoration - ANSWER-3. slightly
higher occlusally than the neighboring cusp of the adjacent tooth
Dentin is normally yellowish-white and darker than enamel. The composition of
dentin is approximately:
- 90% inorganic material, 2.0% organic material, 8% water
- 95.5% inorganic material, 0.5% organic material, 4% water
- 70% inorganic material, 20% organic material, 10% water
- 85% inorganic material, 1.0% organic material, 10% water - ANSWER-3. 70%
inorganic material, 20% organic material, 10% water
This embrasure is located btwn the marginal ridge + contact area and can be
formed by a sickle explorer in soft amalgam @ a 45deg angle:
- facial
- lingual
- occlusal
- gingival - ANSWER-3. occlusal
An overextension (flash) @ the cavosurface margin is indicated by:
- a space btwn the restoration + the enamel wall
- a catch as the explorer moves from moves from tooth to amalgam
- a catch as the explorer moves from amalgam to tooth
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