diagnost dlt practice

What is the curve of Spee?

• The natural curve of the mandible going upwards

What are the three kinds of dentition people have during their lifetime

• permanent, primary, mixed

What kind of dentist would perform a root canal?

• endodontist
  

What kind of dentist would perform a gingivectomy?

• periodontist

How many molars does a set of complete dentures have?

• 8

What is another word for a primary tooth

• deciduous

how many teeth in a quadrant?

• 8

When setting teeth on a denture with a curve of Spee, there is only one maxillary posterior tooth which touches the occlusal plane. Which tooth is it?

• the maxillary first molar

Which cusp of the tooth referred to in the previous question touches the occlusal plane? There is only one.

• mesiolingual cusp

Where is the hamular notch?

• Immediately distal to the maxillary third molar

Where is the retro-molar pad?

• Distal to the mandibular third molar

What is a post dam, and what is its purpose?

• a seal created to keep the denture suctioned to the patients pallete and prevent food from getting trapped.

Which kind of tooth is not present in the deciduous dentition?

• bicuspids

What is the typical height of a mandibular occlusal rim?

• 18mm

What kind of denture tooth would require mechanical retention?

• porcelain

Why do dentures need to be relined from time to time?

• Because resorption changes the shape and size of the palate and alveolar ridges.

Occlusal rims have several functions. Which of them is the most critical?

• to establish the vertical dimension

What is the main advantage of an immediate denture to the patient?

• they dont have to be edentulous for long before they get the denture

What is the main disadvantage to the patient of an immediate denture?

• the denture has to be constantly relined due to entropy in the patients healing process

When setting teeth on an immediate denture, how many teeth are removed at a time?

• one at a time

Which side of the denture is prepared for relining?

• The tissue side, that touches the alveolar ridge

What is the purpose of die spacer?

• They make space for where the cement is going to be

What is the water powder ratio for die stone?

• 22ml stone/100g water

Why must the gasket of the mixing bowl lid be kept clean?

• so the machine can suction it properly.

Name one way in which stone can be accelerated

• rapid spatulation

Name one way in which the setting time of stone can be retarded (slowed down)

• lemon juice

Which class of decay would require an inlay restoration?

• class 1 and 2

What is the difference between an inlay and an onlay?

• inlays are in the grooves of the teeth, onlays cover multiple cusps.

Which tooth is number 14?

• maxilla left first molar

What does the word trifurcated mean?

• 3 roots

Which tooth has three buccal cusps?

• mandibular first molar

What is the first question I ask you when looking at your posterior waxups?

• can the patient close their mouth

Name the three parts of a bridge.

• abutment, pontic, saddle area

Going from the occlusal surface down, what are the three divisions of a posterior crown?

• occlusal 3rd, cervical 3rd, middle 3rd

How many lobes combine to form the mandibular first molar?

• five

A space between two teeth, not caused by an extraction, is called a ....

• diastema

Which are the only teeth which touch the exact same surface of the same tooth?

• central incisors

What is the name of the convex mass of gingiva immediately posterior to the central incisors?

• incisive papilla

What is the name of the spaces between the teeth?

• embrasure

What is the name of the little points of gingiva that fit into the spaces between the teeth?

• interdental papilla

Name the convexity that appears on the gingival third of the lingual surface of an anterior tooth.

• cingulum