Pre-Prosthodontic Records and Impressions

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Questions and Answers

What is the consequence of using warm water when measuring it for an alginate impression?

  • It will shorten the gelation time (correct)
  • It will lengthen the gelation time
  • It will make the mix more fluid
  • It will not affect the gelation time

What muscle influences the distobuccal corner of the lower denture?

  • Buccinator muscle (correct)
  • Masseter muscle
  • Pterygomandibular raphe
  • Mylohyoid muscle

Which direction do the buccinator fibers run in the buccal shelf area?

  • Diagonally
  • Vertically in anteroposterior direction
  • Horizontally and in the anteroposterior direction (correct)
  • Horizontally in the mediolateral direction

What is indicated by orange-red discoloration of the saliva and orangish staining of the dentures?

<p>Patient is taking INH + rifampin for several months as treatment for non-drug resistant tuberculosis (B)</p> Signup and view all the answers

What happens if the denturist does not notice the temperature of the water while measuring it for an alginate impression?

<p>It will shorten the gelation time (B)</p> Signup and view all the answers

What could be the result of not adapting the alginate impression material closely to the tissues?

<p>It will result in a gap (A)</p> Signup and view all the answers

What is the significance of not recording the retromolar pads during impression making?

<p>It has no effect on the final denture. (C)</p> Signup and view all the answers

What is the indication of a border molded custom impression tray lifting when the patient opens the mouth?

<p>Overextension at the lingual borders. (D)</p> Signup and view all the answers

What is the correct amount of water to be used when mixing 100gms of dental stone powder?

<p>28-30ml (A)</p> Signup and view all the answers

What determines the initial set of gypsum products?

<p>Loss of gloss; 20-30 minutes. (C)</p> Signup and view all the answers

What is a suitable accelerator and retarder respectively for gypsum products?

<p>Ethyl alcohol and oleic acid. (A)</p> Signup and view all the answers

What is the subjective criterion for final set time of gypsum products?

<p>No further indentation. (A)</p> Signup and view all the answers

What is the primary function of the hamular notch in denture construction?

<p>It serves as a landmark for determining the posterior border of the maxillary denture (A)</p> Signup and view all the answers

Which of the following is NOT a primary stress-bearing area of the lower denture?

<p>The maxillary tuberosity (A)</p> Signup and view all the answers

Angular chelitis, wrinkles around the modiolus, and less visible vermillion border of the lower lip are indicative of:

<p>Reduced vertical dimension due to possible wearing of denture teeth (B)</p> Signup and view all the answers

What is a possible cause of perleche or angular cheilitis?

<p>Riboflavin deficiency (C)</p> Signup and view all the answers

What is the primary purpose of a panoramic radiograph in an edentulous patient?

<p>To locate the mandibular canal and mental foramina (B)</p> Signup and view all the answers

What is the mean denture bearing area of the maxilla?

<p>22.96 cm² (C)</p> Signup and view all the answers

What is the most common cause of hyperplastic tissue in the anterior part of the maxillary residual ridge?

<p>Overeruption of the opposing teeth (B)</p> Signup and view all the answers

What is the significance of the retromolar pad in denture construction?

<p>It provides support for the buccal flange of the denture (A)</p> Signup and view all the answers

Which type of patient is most cooperative for a Denturist?

<p>Indifferent patient (A)</p> Signup and view all the answers

What is a characteristic of addition silicones?

<p>They are available in five viscosities (D)</p> Signup and view all the answers

What is xerostomia also known as?

<p>Dry mouth (B)</p> Signup and view all the answers

What is not a combination of ingredients that is not commonly used in dentistry?

<p>Glycerin and potassium sulfate (A)</p> Signup and view all the answers

What is the primary function of the immunoglobulin present in saliva?

<p>To protect the intraoral mucous membranes (C)</p> Signup and view all the answers

Which medication is most likely to cause xerostomia, altered taste, and photosensitivity to dental lights?

<p>Anti-psychotic medication (C)</p> Signup and view all the answers

What is the classification of Vitamin E in terms of solubility?

<p>Fat-soluble vitamin (A)</p> Signup and view all the answers

What is a characteristic of the labial frenum?

<p>It is a fold of mucous membrane (D)</p> Signup and view all the answers

Where do the ducts of Von Ebner's glands open?

<p>Around the circumvallate papillae on the dorsum of the tongue (C)</p> Signup and view all the answers

What is the characteristic of the mucosa on the hard palate?

<p>Keratinized (C)</p> Signup and view all the answers

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