MDS PREP
Cervical abrasion is usually the result of
1. acidic fluids
2. sulcular brushing
3. gingival sulcular fluids
4. horizontal brushing
Periodontics
Answer: 4
Cervical abrasion is often caused by improper brushing techniques, particularly
horizontal brushing, which can wear away the enamel and dentin at the cervical
area of the teeth.
Slight gingival recession on normally placed canine is noted due to inflammation. After through scaling and root planing it is free of inflammation. Treatment of choice
1) Laterally positioned graft
2) Free gingival graft
3) Coronally displaced graft
4) Maintenance and recall visits
Periodontics
Answer: 4
1) Laterally positioned graft: This technique is used when there is a loss of
interdental papilla, which may occur due to periodontal disease or trauma.
2) Free gingival graft: This involves the transfer of a piece of tissue from the
palate to the affected area to cover the exposed root surface and increase the
zone of attached gingival tissue.
3) Coronally displaced graft: This technique involves moving the existing
gingival tissue coronally over the exposed root to cover it.
4) Maintenance and recall visits: After the resolution of inflammation through
scaling and root planing, if the recession is minimal and the tooth is not at
risk of further damage, regular maintenance and recall visits may be sufficient
to monitor the area.
Since the question mentions that the tooth is normally placed and the issue is
resolved after scaling and root planing, the correct answer is 4) Maintenance
and recall visits to ensure the area remains healthy and monitor for any
recurrence of recession.
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.
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.
The relationship between the working edge of the instrument and the tooth surface is
1. Angulation
2. Access
3. Adaptation
4. Activation
Periodontics
Answer: 3
The relationship between the working edge of the instrument and the tooth surface is called adaptation.
When doing instrumentation near the cementoenamel junction, cementum completely removed because it is
1. very thin in this area
2. usually softer than subgingival calculus
3. necrotic in the pocket
4. all of the above
Periodontics
Answer: 4
The cementum near the cementoenamel junction (CEJ) is indeed very thin, making
it more susceptible to removal during instrumentation. Additionally, cementum
can be softer than subgingival calculus, and in cases of periodontal disease, it
may become necrotic.
Crater-like gingival deformities are seen in
1. ANUG
2. JP
3. Chronic gingivitis
4. Adult periodontitis
Periodontics
Answer: 1
Crater-like gingival deformities are seen in ANUG.
The most prominent immunoglobulin in sulcular fluid is
l . Ig A
2. Ig E
3. Ig M
4. Ig G
Periodontics
Answer: 4
The most prominent immunoglobulin in sulcular fluid is IgG.
Sulcular fluid is the fluid found in the space between the tooth and the
surrounding gingival tissue. It contains various immunoglobulins that contribute
to the local immune defense against oral pathogens. While IgA is the most common
immunoglobulin found in saliva, which is closely related to the oral cavity, the
most prominent immunoglobulin in sulcular fluid is actually IgG. IgG is the most
abundant antibody in the blood and can be found in various bodily fluids,
including sulcular fluid, where it provides protection against infections and
inflammation. IgE is associated with allergic reactions, IgM with early immune
responses, and IgA with mucosal surfaces