MDS PREP
The massetric notch in distobuccal corners of the mandibular denture is due to
1. Action of buccinator on masseter
2. Action of masseter on buccinator
3. Action of palatoglossus on buccinator
4. Action of superior constrictor on masseter
Prosthodontics
Answer: 2
The massetric notch in the distobuccal corners of the mandibular denture is due to the action of masseter on buccinator.
A complete denture wearing patient complains of tingling sensation in the lower premolar region. The ridges are resorbed. The most possible explanation
1. Pressure on the mucosa due to ridge resorption
2. Pressure on the mental foramen due to ridge resorption
3. Occlusal discrepancies due to ridge resorption
4. All of the above
Prosthodontics
Answer: 2
A complete denture wearing patient complains of tingling sensation in the lower premolar region. The ridges are resorbed. The most possible explanation is pressure on the mental foramen due to ridge resorption.
To allow space for the dentures, most tuberosity reduction require
1. Only soft fibrous tissue removal
2. Large part of the bone to be removed
3. Removal of bone always
4. Reduction of bone always on both sides
Prosthodontics
Answer: 1
To allow space for the dentures, most tuberosity reduction requires only soft fibrous tissue removal.
Primary stress bearing area in maxillary complete denture is
1. Anterior palate
2. Buccal sulcus areas
3. Edentulous ridges
4. Posterior palatal area
Prosthodontics
Answer: 3
The primary stress-bearing area in maxillary complete denture is the edentulous ridges.
The appropriate shape of a rest for a canine tooth is:
1) Full moon shaped
2) Half moon shaped
3) Half pear-shaped
4) None of the above
Prosthodontics Answer: 2
The half moon shape is ideal for canine rests as it provides adequate support and stability for the removable partial denture.
The direction of the resorption of the maxillary ridge
1. Downwards and buccally
2. Upwards and lingually
3. Downwards and lingually
4. Upwards and buccally
Prosthodontics
Answer: 2
The direction of the resorption of the maxillary ridge is upwards and lingually.
Broad palatel seal indicates
1. Type A palatal form
2. Type B palatal form
3. Type C palatal form
4. None of the above
Prosthodontics
Answer: 1
Broad palatal seal indicates type A palatal form.
Which of the following implant materials density equals that of the alveolar bone
1) Chromium-cobalt
2) Titanium alloy
3) Stainless steel alloy
4) Bioglass
Prosthodontics
Answer: 2
Titanium alloys are commonly used in dental implants due to their favorable properties, including biocompatibility and mechanical strength. The density of titanium alloys is relatively close to that of human alveolar bone, which helps in achieving a good integration (osseointegration) between the implant and the bone. Other materials listed, such as chromium-cobalt and stainless steel alloys, have different densities and are not as compatible with bone in terms of density and biological response. Bioglass, while biocompatible, is not typically used as a structural implant material in the same way as titanium.