MDS PREP
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.
Lower first molar has furcation involvement with bifurcation caries, treatment of choice is
1. Endodontic treatment followed by hemisection
2. Hemisection followed by endodontic therapy
3. Apical curettage only
4. None of the above
Periodontics
Answer: 1
The treatment of choice for a lower first molar with furcation involvement and bifurcation caries is endodontic treatment followed by hemisection.
During activation of a scaling instrument, the facial surface of the blade and tooth surface should form an angle of
1. > 15 but < 45
2. > 30 but < 60
3. > 45 but < 90
4. > 90 but < 180
Periodontics
Answer: 3
During activation of a scaling instrument, the facial surface of the blade and tooth surface should form an angle of > 45 but < 90 degrees.
The operator position to perform scaling mandibular right posterior extent on lingual aspect is
1. Front position
2. Left side of the patient
3. Right side of the patient
4. Back position
Periodontics
Answer: 1
The operator position to perform scaling on the mandibular right posterior extent on the lingual aspect is the front position.
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.
Secondary occlusal traumatism is least likely to be associated with
1. inflamed gingiva
2. bruxism
3. tooth mobility
4. migration of teeth
Periodontics
Answer: 1
Secondary occlusal trauma primarily relates to occlusal discrepancies or effects
on tooth mobility due to periodontal attachment loss rather than localized
gingival inflammation alone.
Gingival inflammation extending the deeper supporting tissues and destroying part of the periodontium would be diagnosed as
1 acute necrotizing ulcerative gingivitis
2 chronic gingivitis
3. gingival pathosis
4. juvenile periodontitis
Periodontics
Answer: 4
Juvenile periodontitis involves inflammation that extends beyond the gingiva
into the supporting structures of the periodontium, leading to significant
tissue destruction.
Definite treatment for herpetic gingivostomatitis
1. Penicillin theraphy
2. Hydrogen peroxide mouth wash
3. Steroid therapy
4. No definite treatment
Periodontics
Answer: 4
There is no definite treatment for herpetic gingivostomatitis.