MDS PREP
Recontouring and selective grinding procedures are carried out in complete denture to
1) Decrease the vertical dimension of occlusion
2) Decrease cuspal height
3) Enhance curve of Spee
4) Remove occlusal disharmony
Prosthodontics
Answer: 4
Recontouring and selective grinding are procedures used to adjust the fit and function of complete dentures. These adjustments are often performed to eliminate any interference with the patient's normal masticatory (chewing) function or to correct any imbalances in the bite. By removing excess material and reshaping the occlusal surfaces, the dentist can address issues such as malocclusion or improper contact between teeth, thereby restoring a harmonious occlusion.
FPDs are generally contraindicated and the missing teeth replaced with a RPD,
in patients less than
1. 17 years old
2. 10 years old
3. 30 years old
4. 46 years old
Prosthodontics
Answer: 2
FPDs are generally contraindicated for several reasons:
Growth and Development: Children are still in their
growth phase, and their jaws and teeth are developing. Placing a fixed
prosthesis can interfere with normal growth patterns and may require
adjustments or replacements as the child grows.
Eruption of Permanent Teeth: In younger patients,
especially those under 10, many of the permanent teeth have not yet erupted.
Using FPDs in this age group can complicate future dental treatments, as the
position of the teeth may change with the eruption of permanent teeth.
When making peripheral seal for mandibular denture, patient notices that the impression is rising when the patient opens his mouth. It indicates
1. Overextension of the labial and lingual surfaces
2. Overextension of the labial and buccal surfaces
3. Overextension of the lingual surfaces
4. Underextension of the lingual surfaces
Prosthodontics
Answer: 2
When making peripheral seal for mandibular denture, if the impression is rising when the patient opens his mouth, it indicates overextension of the labial and buccal surfaces.
The primary purpose of rinsing the algina impression in watery mix of gypsum is to
1. Increase the gel strength
2. Prevent further gelatio
3. To decrease the shrinkage of the impression
4. To remove the residual saliva on the impression
Prosthodontics
Answer: 4
The primary purpose of rinsing the alginate impression in a watery mix of gypsum is to remove the residual saliva on the impression.
Which of the following is NOT a component of a dental surveyor?
1) Base
2) Vertical arm
3) Toothbrush holder
4) Surveying arm
Prosthodontics
Answer: 3
A dental surveyor consists of components like a base, vertical arm, horizontal arm, and surveying arm, but it does not include a toothbrush holder.
The following aslo serves in guiding path of insertion and path of removal along with guiding planes
1) Minor connector
2) Occlusal rest
3) Major connector
4) Clasps
Prosthodontics
Answer: 1
While guiding planes are the primary elements that dictate the path of insertion and removal, the minor connector also plays a role. The minor connector helps in the overall stability and retention of the RPD by linking the major connector to the abutment tooth and distributing the forces more evenly across the denture base. However, its primary function is not to guide the path of insertion and removal as much as it is to provide additional support and strength to the RPD.
What is the established vertical dimension freeway space in millimeters?
1. 5-6
2. 1-3
3. 2-4
4. 6-8
Prosthodontics
Answer: 3
The established vertical dimension freeway space in millimeters is 2-4.
An overextended mandibular denture will be dislodged as a result of function of
1. Masseter
2. Temporalis
3. Buccinator
4. Lateral pterygoid
Prosthodontics
Answer: 1
An overextended mandibular denture will be dislodged as a result of the function of masseter.