NDAEB EXAM QUESTIONS AND ANSWERS 2024.

NDAEB EXAM QUESTIONS AND ANSWERS 2024. In relation to dental radiography, what term refers to the anatomical landmark used to identify a maxillary canine periapical film? CORRECT -Maxillary Sinus Prior to exposing a dental radiograph, placement of the lead apron over the patient protects which tissues? CORRECT -Gonadal A blood pressure cuff should be placed over which of the following arteries? CORRECT -Brachial What 3 factors are essential in order to produce accurate diagnostic casts? CORRECT -Water to powder ratio, mixing time and water temperature What is the name of the adhesive film that retains bacterial colonies to the teeth? CORRECT -Pellicle What radiograph image is most useful for inter proximal caries? CORRECT - Bitewing Which fluid provides lubrication during movements of the TMJ? CORRECT - Synovial Fluid What is the correct way to store scrap amalgam? CORRECT -In a tightly closed mercury recycling container In a steam sterilizer, the distilled water is converted to steam then condensed back into liquid water. What happened to the condensed water? CORRECT -It is drained from the sterilizer and discarded down the drain in the sink A patient presents to the dental office with concerns about sensitivity on a lower canine tooth. The dentist performs an exam and diagnosis gingival recession and abrasion on the facial root surface of tooth 33. The patient has 100% coverage for diagnostic, preventive and restorative services. 1. What is the etiology of the sensitivity? 2. What could cause the tooth pathology? 3. What term refers to the dentist regarding dental insurance? 4. The patient should be encouraged to use a dentifrice containing fluoride and which other chemical agent? CORRECT -- Exposed dentinal tubules - Use of an abrasive dentifrice - Provider - Potassium nitrate A 24 year old patient presents for an emergency exam. During the interview it is noted that he is a heavy smoker and under emotional stress. The clinical findings are : a biofilm index of 3 with some ulceration of interdental papillae. 1. What condition does the patient have? 2. What is the recommended treatment? 3. What does the biofilm index assigned to the patient mean? CORRECT -1) Necrotizing periodontitis 2) Debridement, careful brushing at home, warm water rinses 3) Heavy biofilm accumulations on both tooth and gingival surfaces A 7-year old falls down some stairs, and is immediately transported to a hospital dental facility. Clinical exam reveals that tooth 11 has a fracture with pupal exposure and that 21 has been avulsed. The patients father has the avulsed tooth. 1. For the re-implantation of the 21 to have the highest success rate, how quickly should it be placed back into the alveolus? 2. How should the avulsed tooth be kept during transportation to the hospital? 3. What would be used to stabilize the re-implanted tooth? 4. What treatment would be correct for tooth 11? CORRECT -1) Within 30 minutes 2) Wrapped in wet gauze 3) An acrylic splint 4) Calcium Hydroxide pulp cap and interim resin restoration A 75 year-old patient presents at the dental office with a fractured 46. While reviewing the medical history, the dental assistant notes that the patient has rheumatoid arthritis and type II diabetes. The clinical exam also reveals generalized gingival recession, cervical tooth abrasion and several root caries. 1. What is the main cause of the patients oral conditions? 2. What is associated with the patients medical conditions? 3. What tooth brushing method should be recommended?4. Due to the patients disclosed medical condition, the DA may suggest what oral aid? CORRECT -1) Biofilm 2) Xerostomia 3) Bass sulcular 4) A modified toothbrush handle A patient presents for a bridge preparation. The dentist administers the local anaesthetic them the DA takes an impression of the lower left quad. Teeth 36 and 37 are missing and tooth 38 has drifted into 37's position. The bridge will go from 35 to tooth 38. The insurance plan provides 80% reimbursement for this treatment. 1. What direction has tooth 38 drifted into? 2. What type of provisional restoration would be best for this patient? 3. What will the alginate impression be used for? 4. How many units will the patients bridge consist of? CORRECT -1) Mesially 2) Custom acrylic 3) As a matrix for the provisional 4) 3 A patient presents for an emergency exam of tooth 16. The tooth has been sensitive to pressure for several weeks and the patient indicates that it's getting worse. The dentist does an intra-oral exam and prescribes a direct digital periapical radiograph of the area. The DA is directed to assemble equipment and supplies for pulp vital testing. 1. Where would the dental assistant place the sensor for the prescribed image? 2. What radiolucent structure would the dental assistant expect to see near the apex of the fractured tooth 3. Which one of the following teeth would be best as the control tooth for the pulp vitality test? 4. The cold test for the tooth causes an intense pain that does not resolve for a few minutes. What diagnosis is most probable? CORRECT -1) Away from the tooth, near the vault of the palate