MDS PREP
Mineralization of dental plaque normally proceeds from the
1. periphery towards the tooth surface
2. occlusal surface towards the root surface
3. tooth surface towards the surface of the plaque
4. centre of the plaque radially
Periodontics
Answer: 3
This process occurs due to the deposition of minerals, primarily calcium and
phosphate ions, in the presence of organic matrix components and bacteria within
the plaque.
Mineralization in dental plaque often starts at the interface between the tooth
surface and the plaque, where the organic matrix provides a substrate forthe
deposition of mineral ions.
As the process continues, the plaque can become increasingly calcified, with the
mineral content moving from the tooth surface outwards towards the surface of
the plaque.
This can lead to the formation oftartar or dental calculus, which is a hardened
deposit of mineralized plaque that can contribute to dental diseases like
gingivitis and periodontitis.
A tight grasp by the operator on the explores will
1. Prevent tactile sensitivity
2. Provide greater maneuverability
3. Prevent muscle fatigue of the fingers
4. All the above
Periodontics
Answer: 1
A tight grasp by the operator on the explorer will prevent tactile sensitivity.
On which of the following tooth surfaces are initial prematurities in retruded contact position most common
1. Distobuccal cusps of maxillary first molars and mesiofacial cusps of mandibular first molars
2. Distal slopes of maxillary canines and mesial slopes of buccal cusps of mandibular first premolars
3. Distal inclines of buccal cusps of mandibular first premolars and mesial in clines of lingual cusps of maxillary first
premolars
4. None of the above
Periodontics
Answer: 3
Distal inclines of buccal cusps of mandibular first premolars and
mesial inclines of lingual cusps of maxillary first premolars
These specific occlusal surfaces are common areas where contacts can develop
prematurely, emphasizing the importance of careful occlusal adjustments.
The most important objective in equilibrating the natural dentition is to
1. ensure balance in eccentric movements
2. narrow the occlusal table
3. achieve a more favorable distribution of occiusal forces
4. eliminate open contacts and prevent food impaction
Periodontics
Answer: 3
Equilibration aims to distribute occlusal forces evenly across the dentition to
prevent excessive stress on individual teeth, thereby reducing the risk of
mobility, wear, and periodontal issues.
Lesions in ANUG can be described as
1. Vesiculobullous lesions which are contagious
2. Ulcerative lesions which are contagious
3. Ulcerative lesions infectious but not contagious
4. None of the above
Periodontics
Answer: 3
Lesions in ANUG can be described as ulcerative lesions that are infectious but not contagious.
Gore Tex membrane is used during reattachment procedures to
1. Prevent osseous regeneration
2. Prevent connective tissue attachment
3. To prevent formation of long junctional epithelium
4. All of the above
Periodontics
Answer: 3
Gore Tex membrane is used during reattachment procedures to prevent the formation of long junctional epithelium.
Type of suture recommended for apically displaced flap adjacent to edentulous area is
1. Anchor suture
2. Figure eight suture
3. Horizontal mattress suture
4. Continuous sling suture
Periodontics
Answer: 1
The type of suture recommended for an apically displaced flap adjacent to an edentulous area is an anchor suture.
When should the correction of occlusal prematurities be performed?
1 At the same time as soft tissue surgery
2 Before starting soft tissue therapy
3. Gross corrections should be done be- fore surgery and finer adjustments after surgery
4. After tissue healing, following surgery is completed
Periodontics
Answer: 3
Addressing significant occlusal prematurities prior to surgical intervention
prevents undue stress and facilitates proper healing, while finer adjustments
can be made post-surgically.1