MDS PREP
The closest speaking space was suggested by
1. Pound
2. McGrane
3. Niswonger
4. Silverman
Prosthodontics
Answer: 2
The closest speaking space was suggested by McGrane.
All of the following are types of face bows, except
1 earpiece face bow
2 twirl bow
3. shaft face bow
4. facia face bow
Prosthodontics
Answer: 3
Types of Face Bows
1. Earpiece Face Bow
Description: This type of face bow has earpieces that
rest against the patient's ears. It is designed to record the relationship
of the maxilla to the hinge axis of the mandible.
Use: It is commonly used in clinical practice for
obtaining accurate records of the maxillary arch in relation to the TMJ. The
earpieces help in aligning the face bow with the patient's anatomical
landmarks.
2. Twirl Bow (or Twirl Face Bow)
Description: The twirl bow features a unique design
that allows for easy adjustment and positioning. It typically has a rotating
mechanism that helps in aligning the bow with the patient's facial midline.
Use: This type is particularly useful for obtaining a
more precise relationship of the maxilla to the TMJ, especially in cases
where the anatomy may be challenging to assess.
3. Bite Fork Face Bow
Description: This face bow incorporates a bite fork
that is used to capture the occlusal relationship of the maxillary arch. The
bite fork is attached to the face bow and is used to record the patient's
bite.
Use: It is often used in conjunction with other face
bows to ensure that the occlusal plane is accurately recorded in relation to
the TMJ.
4. Facial Bow
Description: This is a more general term that can refer
to any face bow used to record facial relationships. It may include various
designs and configurations.
Use: Facial bows are used in different prosthodontic
applications, including complete dentures, partial dentures, and fixed
prosthodontics.
5. Shaft Face Bow
Description: This type of face bow is less common and
may refer to a design that includes a shaft for stability and alignment.
Use: It is used in specific clinical situations where a
more rigid structure is needed to maintain the relationship of the maxilla
to the TMJ.
6. Kavo Face Bow
Description: This is a specific brand of face bow that
is designed for ease of use and accuracy. It often features adjustable
components for better alignment.
Use: Kavo face bows are used in various prosthodontic
procedures to ensure accurate records of the maxillary arch.
7. Hanau Face Bow
Description: The Hanau face bow is a well-known design
that allows for precise recording of the maxillary arch's relationship to
the TMJ. It typically includes a bite fork and adjustable arms.
Use: It is widely used in dental laboratories and
clinics for creating accurate dental prostheses.
Occlusal rims are also called
1. Dummy dentures
2. Trial dentures
3. Immediate dentures
4. Overdentures
Prosthodontics
Answer: 1
Occlusal rims are also called dummy dentures.
Which of the following is true regarding immediate complete dentures?
1. Dentures should be relined or remade in 6-12 months
2. The patient should not wear the dentures for the first 24 hours after extraction
3. Anterior try in should be done
4. Teeth should always be placed in the same position as natural teeth
Prosthodontics
Answer: 1
Which of the following is true regarding immediate complete dentures: dentures should be relined or remade in 6-12 months.
The distal palatal termination of the complete denture is dictated by the
1. Tuberosity
2. Vibrating line
3. Fovea palatine
4. Maxillary tori
Prosthodontics
Answer: 2
The distal palatal termination of the complete denture is dictated by the vibrating line.
Excessive vertical dimension may affect
1. Encroaching the freeway space
2. Proper centric relation
3. Proper retention
4. All of the above
Prosthodontics
Answer: 4
Excessive vertical dimension may affect all of the above: encroaching the freeway space, proper centric relation, proper retention.
Centric jaw relation is made
1. At established vertical dimension
2. Before the vertical dimension is established
3. At a greater level than established vertical dimension
4. No relative to the vertical dimension
Prosthodontics
Answer: 1
Centric jaw relation is made at established vertical dimension.
The Camper’s plane passes from the
1. lateral commissure of the mouth to the inferior edge of the ear
2. orbitale to the middle of the tragus of the ear
3. ala of nose to the superior edge of the tragus of the ear
4. outer canthus of eye to the most posterior point on the tragus of the ear
Prosthodontics
Answer: 3
The Camper’s plane is a facial reference plane that passes from the ala of the nose to the superior edge of the tragus of the ear. This plane is used in facial and cranial anatomy to describe the orientation of various structures and is often referenced in the field of orthodontics and surgery. It is useful for assessing the facial profile and the relationship between the nose, ears, and other facial features.