MDS PREP
A patient with a -4mm overbite can be classified to have which type of malocclusion?
Prosthodontics Answer: 3
1. Deep bite
2. Crossbite
3. Openbite
4. Class II
A patient with a -4mm overbite can be classified to have an open bite.
When recording jaw relations, the danger of displacing the baseplates can be
minimized by
1. fabricating wax occlusal rims
2. lining the baseplate with acrylic resin
3. fabricating compound occlusal rims
4. lining the baseplate with zinc oxide-eugenol impression paste
Prosthodontics
Answer: 4
Explanation: Lining the baseplate with zinc oxide-eugenol impression paste
provides a more stable and accurate fit during jaw relation records. This
material can help capture the contours of the underlying tissues and minimize
movement of the baseplate, thus reducing the risk of displacing it during the
recording process. The other options may not provide the same level of
stability.
Indirect retainers are situated
1) As far anteriorly from the fulcrum line
2) As close to the fulcrum line
3) At the canine region
4) At the mesial marginal ridge of the premolars in the class I case
Prosthodontics
Answer: 1
Indirect retainers are components of removable partial dentures that help to prevent the denture from dislodging during function. They are ideally placed as far anteriorly from the fulcrum line (the line around which the denture rotates) as possible. This positioning helps to provide stability and support to the denture, counteracting the forces that could dislodge it.
Vomiting during impression making procedures may be prevented by
1. Sedating the patient
2. Injecting local anaesthetic
3. Asking patient to come on empty stomach
4. Change the impression material
Prosthodontics
Answer: 2
Vomiting during impression-making procedures may be prevented by injecting local anaesthetic.
Which are you NOT looking for when exploring the apical third of a canal?
1) Hypercementosis
2) Branches
3) Lateral canal openings
4) Internal root resorbtion
Prosthodontics
Answer: 1
Which are you NOT looking for when exploring the apical third of a canal: hypercementosis.
The muscle which trims the posterior lingual areas of the lower denture is
1. Genioglossus and stylohyoid muscle
2. Palatoglossus and superior constrictor
3. Mentalis and buccinator
4. Medial pterygoid muscle, lateral pterygoid muscle
The muscle which trims the posterior lingual areas of the lower denture is palatoglossus and superior constrictor.
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.
The zinc oxide eugenol impression paste is used to enhance quality of
1. Modeling compound impression
2. Reversible hydrocolloid impression
3. Alginate impressions
4. Wax impressions
Prosthodontics
Answer: 1
The zinc oxide eugenol impression paste is used to enhance the quality of modeling compound impression.