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NDAEB Sample Questions With Correct Answers, Exams of Dentistry

Princeton UniversityDentistry

NDAEB Sample Questions With Correct Answers

Typology: Exams

2025/2026

Available from 03/04/2026

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NDAEB //Sample //Questions //With //Correct
//Answers //
In //relation //to //dental //radiography, //which //one //of //the
//following //terms //refers //to //the //anatomical //landmark //used //to
//identify //a //maxillary //canine //periapical //film?
1. //Maxillary //sinus.
2. //Mental //foramen.
3. //Bifurcated //roots.
4. //Maxillary //tuberosity. //- //CORRECT //ANSWERS(S)✔✔1.
//Maxillary //Sinus
Prior //to //exposing //a //dental //radiograph/image, //placement //of
//the //lead //apron //over //the //patient //protects //which //one //of //the
//following //tissues?
1. //Vascular.
2. //Gonadal.
3. //Muscular.
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NDAEB //Sample //Questions //With //Correct

//Answers //

In //relation //to //dental //radiography, //which //one //of //the //following //terms //refers //to //the //anatomical //landmark //used //to //identify //a //maxillary //canine //periapical //film?

  1. //Maxillary //sinus.
  2. //Mental //foramen.
  3. //Bifurcated //roots.
  4. //Maxillary //tuberosity. //- //CORRECT //ANSWERS(S)✔✔1. //Maxillary //Sinus Prior //to //exposing //a //dental //radiograph/image, //placement //of //the //lead //apron //over //the //patient //protects //which //one //of //the //following //tissues?
  5. //Vascular.
  6. //Gonadal.
  7. //Muscular.
  1. //Digestive. //- //CORRECT //ANSWERS(S)✔✔ 2. //Gonadal A //blood //pressure //cuff //should //be //placed //over //which //one //of //the //following //arteries?
  2. //Pulmonary.
  3. //Brachial.
  4. //Carotid.
  5. //Radial. //- //CORRECT //ANSWERS(S)✔✔ 2. //Brachial Which //three //factors //are //essential //in //order //to //produce //accurate //diagnostic //casts?
  6. //Water //to //powder //ratio, //temperature //of //gypsum //and //force //of //mixing.
  7. //Water //temperature, //form //of //gypsum //used //and //force //of //mixing.
  8. //Water //to //powder //ratio, //mixing //time //and //water //temperature.

Which //one //of //the //following //fluids //provides //lubrication //during //the //movements //of //the //temporomandibular //joint?

  1. //Blood.
  2. //Saliva.
  3. //Synovial //fluid.
  4. //Lymphatic //fluid. //- //CORRECT //ANSWERS(S)✔✔3. //Synovial //Fluid What //is //the //correct //way //to //store //scrap //amalgam?
  5. //In //a //plastic //waste //container.
  6. //In //a //glass //container //filled //with //water.
  7. //In //a //metal //container //with //sodium //hypochlorite.
  8. //In //a //tightly //closed //mercury //recycling //container. //- //CORRECT //ANSWERS(S)✔✔4. //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 //happens //to //the //condensed //water?
  1. //It //is //drained //from //the //sterilizer //and //discarded //down //the //drain //in //the //sink.
  2. //The //sterilizer //continues //to //convert //the //water //to //steam //over //and //over.
  3. //It //runs //directly //from //the //sterilizer //into //the //sewage //system.
  4. //It //must //be //collected //as //contaminated //liquid //waste. //- //CORRECT //ANSWERS(S)✔✔1. //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 //examination //and //diagnoses //gingival //recession //and //abrasion //on //the //facial //root //surface //of //tooth //33. //The //patient //has //100% //dental //insurance //coverage //for //diagnostic, //preventive //and //restorative //services. What //is //the //etiology //of //the //sensitivity?
  5. //Exposed //pulp.
  6. //Exposed //dentinal //tubules.
  7. //Hypersensitive //dentogingival //fibers.

//patient //has //100% //dental //insurance //coverage //for //diagnostic, //preventive //and //restorative //services. Which //of //the //following //terms //refers //to //the //dentist //with //regard //to //the //dental //insurance?

  1. //Carrier.
  2. //Provider.
  3. //Beneficiary.
  4. //Assignment. //- //CORRECT //ANSWERS(S)✔✔ 2. //Provider A //patient //presents //to //the //dental //office //with //concerns //about //sensitivity //on //a //lower //canine //tooth. //The //dentist //performs //an //examination //and //diagnoses //gingival //recession //and //abrasion //on //the //facial //root //surface //of //tooth //33. //The //patient //has //100% //dental //insurance //coverage //for //diagnostic, //preventive //and //restorative //services. The //patient //should //be //encouraged //to //use //a //dentifrice //containing //fluoride //and //which //other //chemical //agent?
  5. //Triclosan.
  6. //Gluteraldehyde.
  7. //Potassium //nitrate.
  1. //Pyrophosphate //salts. //- //CORRECT //ANSWERS(S)✔✔3. //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 //has //been //under //a //great //deal //of //emotional //stress. //The //clinical //examination //findings //are: //a //biofilm //index //of // 3 //with //some //ulceration //of //interdental //papillae. Which //one //of //the //following //gingival //conditions //does //this //patient //have?
  2. //Herpetic //gingivostomatitis.
  3. //Necrotizing //periodontitis.
  4. //Aggressive //periodontitis.
  5. //Pericoronitis //- //CORRECT //ANSWERS(S)✔✔2. //Necrotizing //Periodontitis A // 24 - year-old //patient //presents //for //an //emergency //exam. //During //the //interview //it //is //noted //that //he //is //a //heavy //smoker //and //has //been //under //a //great //deal //of //emotional //stress. //The //clinical //examination //findings //are: //a //biofilm //index //of // 3 //with //some //ulceration //of //interdental //papillae.
  1. //Heavy //biofilm //accumulations //on //both //the //tooth //and //gingival //surfaces. //- //CORRECT //ANSWERS(S)✔✔4. //Heavy //biofilm //accumulations //on //both //the //tooth //and //gingival //surfaces A // 7 - year-old //falls //down //some //stairs, //and //is //immediately //transported //to //a //hospital //dental //facility. //Clinical //examination //of //the //injured //area //reveals //that //tooth // 11 //has //a //fracture //with //pulpal //exposure //and //that // 21 //has //been //avulsed. //The //patient's //father //has //the //avulsed //tooth. For //the //re-implantation //of //the //tooth //to //have //the //highest //success //rate, //how //quickly //should //it //be //placed //back //into //the //alveolus?
  2. //Within // 30 //minutes.
  3. //Within // 45 //minutes.
  4. //Within //the //first //hour.
  5. //Within //the //first //few //hours. //- //CORRECT //ANSWERS(S)✔✔ 1. //Within // 30 //minutes A // 7 - year-old //falls //down //some //stairs, //and //is //immediately //transported //to //a //hospital //dental //facility. //Clinical //examination //of //the //injured //area //reveals //that //tooth // 11 //has

//a //fracture //with //pulpal //exposure //and //that // 21 //has //been //avulsed. //The //patient's //father //has //the //avulsed //tooth. How //should //the //avulsed //tooth //have //been //kept //during //transportation //to //the //hospital?

  1. //In //disinfectant.
  2. //Wrapped //in //wet //gauze.
  3. //In //a //container //of //liquid //fluoride.
  4. //Wrapped //in //a //dry, //sterile //gauze //or //bandage. //- //CORRECT //ANSWERS(S)✔✔ 2. //Wrapped //in //a //wet //gauze A // 7 - year-old //falls //down //some //stairs, //and //is //immediately //transported //to //a //hospital //dental //facility. //Clinical //examination //of //the //injured //area //reveals //that //tooth // 11 //has //a //fracture //with //pulpal //exposure //and //that // 21 //has //been //avulsed. //The //patient's //father //has //the //avulsed //tooth. What //would //be //used //to //stabilize //the //re-implanted //tooth?
  5. //An //acrylic //splint.
  6. //Temporary //cement.
  7. //A //custom-fit //mouthguard.

//also //reveals //generalized //gingival //recession, //cervical //tooth //abrasion //and //several //root //caries. What //is //the //main //cause //of //this //patient's //oral //conditions?

  1. //Biofilm.
  2. //Calculus.
  3. //Medications.
  4. //Materia //alba. //- //CORRECT //ANSWERS(S)✔✔ 1. //Biofilm A // 75 - year-old //patient //presents //at //the //dental //office //with //a //fractured //tooth //46. //While //reviewing //the //medical //history, //the //dental //assistant //notes //that //the //patient //has //rheumatoid //arthritis //and //type //II //diabetes. //The //clinical //examination //also //reveals //generalized //gingival //recession, //cervical //tooth //abrasion //and //several //root //caries. Which //one //of //the //following //complications //is //associated //with //the //patient's //medical //conditions?
  5. //Anaphylaxis.
  6. //Hypotension.
  7. //Xerostomia.
  1. //Vertigo. //- //CORRECT //ANSWERS(S)✔✔ 3. //Xerostomia A // 75 - year-old //patient //presents //at //the //dental //office //with //a //fractured //tooth //46. //While //reviewing //the //medical //history, //the //dental //assistant //notes //that //the //patient //has //rheumatoid //arthritis //and //type //II //diabetes. //The //clinical //examination //also //reveals //generalized //gingival //recession, //cervical //tooth //abrasion //and //several //root //caries. Which //one //of //the //following //tooth //brushing //techniques //should //be //recommended //for //this //patient?
  2. //Fones.
  3. //Bass //sulcular.
  4. //Rolling //stroke.
  5. //Horizontal //scrub. //- //CORRECT //ANSWERS(S)✔✔2. //Bass //sulcular A // 75 - year-old //patient //presents //at //the //dental //office //with //a //fractured //tooth //46. //While //reviewing //the //medical //history, //the //dental //assistant //notes //that //the //patient //has //rheumatoid //arthritis //and //type //II //diabetes. //The //clinical //examination //also //reveals //generalized //gingival //recession, //cervical //tooth //abrasion //and //several //root //caries.
  1. //Mesially.
  2. //Lingually. //- //CORRECT //ANSWERS(S)✔✔ 3. //Mesially A //patient //presents //for //a //bridge //preparation. //The //dentist //administers //the //local //anaesthetic //then //the //dental //assistant //takes //an //alginate //impression //of //the //lower //left //quadrant. //Teeth // 36 //and // 37 //are //missing //and //tooth // 38 //has //drifted //into //the // 37 //position. //The //bridge //will //go //from //tooth // 35 //to //tooth //38. //The //insurance //plan //provides //80% //reimbursement //for //this //type //of //treatment. What //type //of //provisional //restoration //would //be //best //for //this //patient?
  3. //Custom //acrylic.
  4. //Zinc //oxide //eugenol.
  5. //Preformed //aluminum.
  6. //Porcelain //fused //to //metal. //- //CORRECT //ANSWERS(S)✔✔1. //Custom //acrylic A //patient //presents //for //a //bridge //preparation. //The //dentist //administers //the //local //anaesthetic //then //the //dental //assistant //takes //an //alginate //impression //of //the //lower //left //quadrant.

//Teeth // 36 //and // 37 //are //missing //and //tooth // 38 //has //drifted //into //the // 37 //position. //The //bridge //will //go //from //tooth // 35 //to //tooth //38. //The //insurance //plan //provides //80% //reimbursement //for //this //type //of //treatment. What //will //the //alginate //impression //be //used //for?

  1. //An //opposing //arch //model.
  2. //As //a //matrix //for //the //provisional.
  3. //To //design //the //anatomy //of //the //retainers.
  4. //To //determine //the //occlusal //clearance //required. //- //CORRECT //ANSWERS(S)✔✔2. //As //a //matrix //for //the //provisional A //patient //presents //for //a //bridge //preparation. //The //dentist //administers //the //local //anaesthetic //then //the //dental //assistant //takes //an //alginate //impression //of //the //lower //left //quadrant. //Teeth // 36 //and // 37 //are //missing //and //tooth // 38 //has //drifted //into //the // 37 //position. //The //bridge //will //go //from //tooth // 35 //to //tooth //38. //The //insurance //plan //provides //80% //reimbursement //for //this //type //of //treatment. How //many //units //will //the //patient's //bridge //consist //of?

A //patient //presents //for //an //emergency //examination //of //tooth //16. //The //tooth //has //been //sensitive //to //pressure //for //several //weeks //and //the //patient //indicates //that //it //is //getting //worse. //The //dentist //does //an //intra-oral //examination //and //prescribes //a //direct //digital //periapical //radiograph //of //the //area. //The //dental //assistant //is //directed //to //assemble //equipment //and //supplies //for //pulp //vitality //testing. What //radiolucent //structure //would //the //dental //assistant //expect //to //see //near //the //apex //of //the //fractured //tooth?

  1. //Lamina //dura.
  2. //Maxillary //sinus.
  3. //Zygomatic //arch.
  4. //Parotid //salivary //gland. //- //CORRECT //ANSWERS(S)✔✔2. //Maxillary //Sinus A //patient //presents //for //an //emergency //examination //of //tooth //16. //The //tooth //has //been //sensitive //to //pressure //for //several //weeks //and //the //patient //indicates //that //it //is //getting //worse. //The //dentist //does //an //intra-oral //examination //and //prescribes //a //direct //digital //periapical //radiograph //of //the //area. //The //dental //assistant //is //directed //to //assemble //equipment //and //supplies //for //pulp //vitality //testing.

Which //one //of //the //following //teeth //would //be //best //as //the //control //tooth //for //the //pulp //vitality //test?

  1. // 17
  2. // 15
  3. // 26
  4. // 46 //- //CORRECT //ANSWERS(S)✔✔ 3. // 26 A //patient //presents //for //an //emergency //examination //of //tooth //16. //The //tooth //has //been //sensitive //to //pressure //for //several //weeks //and //the //patient //indicates //that //it //is //getting //worse. //The //dentist //does //an //intra-oral //examination //and //prescribes //a //direct //digital //periapical //radiograph //of //the //area. //The //dental //assistant //is //directed //to //assemble //equipment //and //supplies //for //pulp //vitality //testing. The //cold //test //for //the //tooth //causes //an //intense //pain //that //does //not //resolve //for //a //few //minutes. //What //diagnosis //is //most //probable?
  5. //Normal //pulp.
  6. //Necrotic //pulp.
  7. //Reversible //pulpitis.