CDA Board Certification Exam | Questions & Answers (100% Correct)

CDA Board Certification Exam | Questions & Answers (100% Correct) CDA Board Certification Exam | Questions & Answers (100% Correct) Which of the following would require the dental assistant to place topical anesthetic at the mental foramen prior to the local anesthetic injection? A. Incisive Nerve Block B. Inferior Alveolar Nerve Block C. Nasopalatine Nerve Block D. Buccal Nerve Block - ANSWER - A. Incisive Nerve Block Which of the following ratios provides the HIGHEST percentage of vasoconstrictor to local anesthetic? A. 1 : 100,000 B. 1 : 200,000 C. 1 : 50,000 D. 1 : 20,000 - ANSWER - D. 1 : 20,000 Which of the following best describes the proper stroke that the dental assistant should use when performing coronal polishing? A. The assistant should stroke the polishing cup from the gingival third toward the incisal third of the tooth. B. The assistant should stroke the polishing cup from the incisal third toward the gingival third of the tooth. C. The assistant should stroke the polishing cup from the distal third toward the mesial third of the tooth. D. The assistant should stroke the polishing cup from the mesial third toward the distal third of the tooth. - ANSWER - A. The assistant should stroke the polishing cup from the gingival third toward the incisal third of the tooth. When trimming the suture after it has been tied off, how far from the knot should the dental assistant trim? A. 4-5 mm B. 0-1 mm C. 2-3 mm D. 3-4 mm - ANSWER - C. 2-3 mm To aid in the osseointegration process of an implant, the implant may be coated with A. glycerin gel. B. parachlorophenol. C. hydroxyapatite. D. gutta percha. - ANSWER - C. Hydroxyapatite Which of the following would MOST LIKELY be selected to place retention grooves within a cavity preparation? A. 557 bur B. 35 bur C. 8 bur D. 169 bur - ANSWER - B. 35 Bur Which of the following instrument grasps will the dentist utilize when holding #151 extraction forceps? A. A palm-thumb grasp B. A pen grasp C. A palm grasp D. A reverse palm-thumb grasp - ANSWER - C. A palm grasp The dental assistant is taking a final impression for a maxillary denture. Which of the following anatomical landmarks does NOT need to be included? A. Post dam B. Frenum attachments C. Hamular notches D. Genial tubercles - ANSWER - D. Genial tubercles When assisting in a Class III or IV composite restorative procedure, what is the best type of matrix that should be used? A. Auto matrix B. Clear matrix C. Universal retainer D. T-band - ANSWER - B. Clear Matrix When curing a composite, the curing light tip should be held at a A. 45-degree angle to the tooth. B. 90-degree angle to the tooth. C. 10-degree angle to the tooth. D. 20-degree angle to the tooth. - ANSWER - B. 90-degree angle held to the tooth Which of the following charting symbols indicates that tooth #16 is impacted? A. Tooth #16 has a blue "X" marked through the tooth. B. Tooth #16 has the canal area filled in with blue. C. Tooth #16 has a red jagged line through the root. D. Tooth #16 has a red circle around the entire tooth. - ANSWER - D. Tooth #16 has a red circle around the entire tooth. When evaluating a patient's bite, which of the following describes the sliding of the mandible to the left or right? A. Retrusion B. Protrusion C. Centric relation D. Lateral excursion - ANSWER - D. Lateral excursion