NDAEB EXAM 2023

NDAEB EXAM 2023 In relation to dental radiography, what term refers to the anatomical landmark used to identify a maxillary canine periapical film? Maxillary Sinus Prior to exposing a dental radiograph, placement of the lead apron over the patient protects which tissues? Gonadal A blood pressure cuff should be placed over which of the following arteries? Brachial What 3 factors are essential in order to produce accurate diagnostic casts? Water to powder ratio, mixing time and water temperature What is the name of the adhesive film that retains bacterial colonies to the teeth? Pellicle What radiograph image is most useful for inter proximal caries? Bitewing Which fluid provides lubrication during movements of the TMJ? Synovial Fluid What is the correct way to store scrap amalgam? 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? 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? - 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? 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? 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? 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? 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? 1) Away from the tooth, near the vault of the palate 2) Maxillary sinus 3) 26 4) Irreversible pulpitits What is the dental dam error when the dam is bunching and stretching on the lingual of the dam when placed? The arch is punched too flat What is the dental dam error when the folding occurs on the facial aspect of the completed dam? The arch is punched too curved What is the dental dam error when inversion of the dam is impossible, resulting in leakage throughout? The holes are punched too large What is the dental dam error when excess dam material is present between all exposed teeth? The holes are punched too far apart What is the dental dam error when the dam material is bunched on the medial and distal of the operative tooth resulting in the hand piece catching and tearing the dam septa? The holes are punched too far apart What type of stain is present when there are black tenacious deposits present in pit and fissures on enamel and restorations? tobacco What type of stain is present when a non-smoker has yellow-brown stains on interproximal and cervical areas of the teeth, as well as on restorations, dorsal surface of the tongue and within retained biofilm? Chlorohexadine What type of stain is present on a 12 year old patient that has staining on the buccal surfaces of maxillary permanent molars and lingual surfaces of lower anterior teeth. The recorded biofilm index is 2. Yellow What is the rationale for obtaining vital signs? To confirm the patients health status is at a level of well being by taking their 1. temperature 2. pulse 3. respiration 4. blood pressure A normal pulse rate for an adult is between 60-____ bpm. While a child's normal rate is between 70 - ____ bpm. 100 120 How do you check a pulse? With the patients arm at the same level as or lower than the heart, extended straight out, the pulse can be found on the side of the neck, on the inside of the elbow, or at the wrist. The most common place to take a patients pulse is the _____ artery. radial The most common place to take a patients blood pressure is the ______ artery. brachial A normal body temperature reading ranges between 97.6-___ F ( 36.4-37.3 C) 99 Several areas of the body can be used to take a temperature reading. Under the _____, inside the ____, under the arm, or in the _______. tongue ear rectum The normal range of a respiration rate for a relaxed adult is ____-____ breaths per minute. For a child or teen it should be between ____-____ breaths per minute. 10-20 30 What is the normal range for blood pressure? 120 Systolic 80 Diastolic What are some factors that affect vital signs? Temperature - time of day, virus, hot or cold beverage, post gym Respiration - if they are aware you are watching, post gym Blood pressure - nervous, post gym Pulse - post gym What is the rationale for performing diagnostic procedures? For the dentist to make an accurate diagnosis, he or she must review MH, DH and discuss all health concerns with the patient then continue the extra oral and intraoral exam, evaluate radiographs, photographs and study models and discuss plan of treatment. State the rationale for obtaining preliminary impressions for the fabrication of study models Preliminary impressions are used to create a reproduction of the teeth and surrounding tissues. A preliminary impression is used for diagnostic models, ________ _______, provisional coverage, _________ ________ and pretreatment and _______________ records. custom trays ortho appliances post treatment A bite registration is taken to produce a reproduction of the ________ relationship of the max and _____ teeth when the mouth is ________. Providing the dentist with an accurate ______ relationship. occlusal mand occluded centric What are the 2 basic impression trays