MDS PREP
A thin bluish line around the gingival margin is due to the absorption of
1. Silver
2. Mercury
3. Drugs like tetracylines
4. Lead
Periodontics
Answer: 4
A thin bluish line around the gingival margin is due to the absorption of lead.
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.
In the conventional finger rest, the finger rest is established on the
1. Other side of the same teeth
2. Tooth surface immediately adjacent to the working area
3. Opposing arch
4. None of the above
Periodontics
Answer: 2
In the conventional finger rest, the finger rest is established on the tooth surface immediately adjacent to the working area.
Which of the following is not a sign or symptom of periodontal abscess?
1. Localized swelling of the gingiva
2. Tooth sensitive to pressure
3. No response to electric pulp testing
4. Pain in the area of abscess
Periodontics
Answer: 3
A periodontal abscess primarily affects the periodontal tissues and does not
typically alter the health of the pulp, which means the tooth may still respond
to pulp vitality tests.
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.
Which of the following is commonly seen in preschool children
1. ANUG
2. Herpetic gingivostomatitis
3. Juvenile periodontitis
4. None of the above
Periodontics
Answer: 2
Herpetic gingivostomatitis is commonly seen in preschool children.
Craters in facial and lingual interdental bone are best eliminated by
1. Gingivectomy
2. Osseous reconturing
3. Osseous regeneration procedure
4. Curettage
Periodontics
Answer: 3
Craters in facial and lingual interdental bone are best eliminated by osseous regeneration procedures.
The following tooth has poorest prognosis after furcation therapy due to limited instrument accessibility
1. Maxillary first molar
2. Maxillary Second molar
3. Mandibular first molar
4. Maxillary first premolar
Periodontics
Answer: 4
The tooth with the poorest prognosis after furcation therapy due to limited instrument accessibility is the maxillary first premolar.