EFDA Review Practice Exam Already Graded A

EFDA Review Practice Exam Already Graded A Basic remediable intraoral tasks and/or procedures include all of the following except: 1. impressions for diagnostic models or mouthguard 2. suture removal 3. placement of gingival retraction cord prior to direction impression 4. placement of surgical dressings 3. placement of gingival retraction cord prior to direction impression The following statements all apply to direct supervision except: 1. dentist is physically present during the performance of delegated "acts" 2. dentist checks the pt before pt leaves the office 3. dentist is personally operating on a pt 4. delegated procedures are performed pursuant to dentist's order and under his/her license 3. dentist is personally operating on a pt The following statements are true regarding the dental pulp except one. Which one is the exception? 1. provides nutrients + fluids to the dentin thru the blood supply 2. contains nerve fibers that mediate pain sensations 3. contains odontoblasts which help form primary, secondary, and reparative dentin 4. increases in size with age 4. increases in size with age On a tooth with extensive gingival recession below the CEJ, which of the following would be visible? 1. anatomical crown 2. clinical crown 3. anatomical + clinical crown 4. anatomical + clinical root 3. anatomical + clinical crown Which of the following statements most accurately describes the periodontium? 1. the oral hard + soft tissues that support the teeth 2. enamel + cementum located on the exterior surfaces of the teeth 3. soft tissue that is loosely attached to the underlying bone 4. cuff of tissue that is not attached to the tooth 1. the oral hard + soft tissues that support the teeth When would an open sandwich technique with GI be recommended? 1. whenever a metal matrix band is used 2. whenever the gingival margin of the proximal box is deeper than ideal 3. it is recommended with every class II composite restoration 4. when the proximal box is wider buccolingually than ideal 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? 1. copal varnish 2. GI 3. zinc phosphate cement 4. calcium hydroxide 3. zinc phosphate cement Which of the following statements is true regarding GI? 1. GI is more abrasion-resistant than amalgam 2. GI is more moisture-sensitive than composite 3. GI provides better esthetics than composite 4. GI bonds chemically and mechanically to dentin 4. GI bonds chemically and mechanically to dentin Tooth #19 MODB RUC is to be restored with amalgam. The overfill on the distal + distobuccal cusps should be: 1. equal to the cavosurface margin 2. to the desired final height of the restoration 3. slightly higher occlusally than the neighboring cusp of the adjacent tooth 4. slightly shorter than desired final height of restoration 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: 1. 90% inorganic material, 2.0% organic material, 8% water 2. 95.5% inorganic material, 0.5% organic material, 4% water 3. 70% inorganic material, 20% organic material, 10% water 4. 85% inorganic material, 1.0% organic material, 10% water 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: 1. facial 2. lingual 3. occlusal 4. gingival 3. occlusal An overextension (flash) @ the cavosurface margin is indicated by: 1. a space btwn the restoration + the enamel wall 2. a catch as the explorer moves from moves from tooth to amalgam 3. a catch as the explorer moves from amalgam to tooth 4. a catch as the explorer is moved in both directions 2. a catch as the explorer moves from moves from tooth to amalgam Which of the teeth in the mouth is the largest with 5 functional cusps? 1. mandibular second molar 2. maxillary first molar 3. mandibular first molar 4. all mandibular molars 3. mandibular first molar You are restoring #18 MOD + #19 MOD back-to-back. You choose to restore #18 first. Upon removing the band, you see the mesial is overcontoured. What should be done? 1. carve the mesial contour until it is anatomically correct before restoring #19 2. restore the distal of #19 to be undercontoured to fit the mesial of #18 3. remove the restoration on #18 and redo it before filling #19 4. carve the mesial of #18 until it is undercontoured before restoring #19 1. carve the mesial contour until it is anatomically correct before restoring #19 When is a contra-angle retainer recommended? 1. one or more of the lingual cusps are missing 2. one or more of the buccal cusps are missing 3. when the proximal depth is wider than the width of a universal matrix band 4. for all large class II amalgams 2. one or more of the buccal cusps are missing Cavity preparations with rotary instruments generate cutting debris, some of which is compacted in a layer onto the dentinal surface. That layer of material is known as: 1. wet dentin 2. smear layer 3. peritubular dentin 4. collagen fibril network 2. smear layer When should the EFDA select a shade for composite resin placement? 1. any time during the procedure 2. after isolation 3. before isolation 4. when teeth are completely dry 3. before isolation When using discs for finishing a composite resin: 1. rotate the disc at high speed 2. use the disc over the entire tooth surface 3. use in any order of abrasiveness, going back + forth between grits 4. wipe or rinse the abrasive residue off of the tooth when changing discs 4. wipe or rinse the abrasive residue off of the tooth when changing discs