MDS PREP
Failures in maintaining adequate plaque control result mostly from failures in patient
1. neuromuscular skills
2. motivation
3. records
4. recalls
Periodontics
Answer: 2
The primary reason for failures in maintaining adequate plaque control is often
a lack of motivation. Patients may understand the importance of oral hygiene but
may not be motivated to implement effective brushing and flossing techniques
consistently.
Instrumentation zone in periodontal therapy is
1. The portion of the tooth where calculus (or) necrotic cementum is found
2. CE junction
3. Exposed root surfaces
4. Deep periodontal pocket
Periodontics
Answer: 1
The instrumentation zone in periodontal therapy is the portion of the tooth where calculus or necrotic cementum is found.
A Gracey curette is said to be correctly adapted when the
1. Handle is parallel to the long axis of the tooth
2. Angle of blade to the tooth is 40
3. Lower shank is parallel with the tooth surface being sealed
4. None of the above
Periodontics
Answer: 3
The Gracey curette is a dental instrument used for subgingival scaling and root planing. Correct adaptation of the curette involves placing it at the correct angle to the tooth surface to effectively remove plaque and calculus. The lower shank of the curette should be parallel with the tooth surface to allow for proper engagement with the tooth structure.
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.
Which of the following serves to increase the width of attached gingiva on tooth with isolated gingival recession
1) Laterally positioned pedicle graft
2) Free gingival graft
3) Apically displaced flap
4) All of the above
Periodontics
Answer: 1
Increasing the width of attached gingiva is important for periodontal
health and aesthetics. Here’s how these techniques generally perform:
Laterally positioned pedicle graft involves using
tissue from an adjacent site to augment the width of attached gingiva at
the recession site without losing blood supply, making it quite
effective.
Free gingival graft can also increase attached
gingiva, but since it comes from a donor site, the healing and
appearance may not be optimal compared to pedicle grafts.
Apically displaced flap primarily repositions
existing tissue and may not necessarily increase the width of attached
gingiva.
While options 2 and 3 can contribute to increased connective tissue, they
don't specifically target the enhancement of attached gingival width as
effectively as a laterally positioned pedicle graft.
Plasma cell gingivitis is seen in individuals having the habit of chewing which of the following types of flavoured chewing gum?
1. Peppermint flavoured
2. Clove flavoured
3. Cinnamon flavoured
4. Banana flavoured
Periodontics
Answer: 1
Plasma cell gingivitis is seen in individuals who chew peppermint-flavored chewing gum.
ANUG is caused by
1. Borrelia vincenti and Fusobacterium
2. Actinomycetam comitans
3. Actinomyces naeslundii
4. Streptococcus mutans
ANUG is caused by Borrelia vincenti and Fusobacterium.
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.