MDS PREP
what %age of NaF is used in iontophoresis:
1.1%
2.2%
3.3%
4.4%
Periodontics
Answer: 2
2% NaF is used in iontophoresis. This fluoride treatments brings about granular precipitation in dentinal tubules and reduces tubular diameter.
Sensitivity of roots after periodontal surgery results from all of the following except
1) Exposed dentine tubules
2) Exposed cementum
3) Formation of plaque
4) None of the above
Periodontics
Answer: 2
After periodontal surgery, root sensitivity is primarily due to the exposure of dentin tubules (option 1). When the root surface is exposed, the dentin becomes sensitive to stimuli because the tubules can transmit sensations to the pulp.
Exposed cementum (option 2) is less likely to cause sensitivity because cementum is not as innervated as dentin. Formation of plaque (option 3) can lead to sensitivity as it may irritate the surrounding tissues and contribute to inflammation.
In which of the following procedures, periodontal pack is not given
1. Gingivectomy
2. GTR procedures without osseous transplants
3. Osteoimplants with reattachment procedures
4. Osteoplasty procedure
Periodontics
Answer: 2
In periodontal surgery, a periodontal pack is not given in GTR procedures without osseous transplants.
Local irritating factors in gingiva are most likely to give rise to
1. Pyogenic granuloma
2. Generalized fibrous hyperplasia of gingiva
3. Mucosal cubblestoning
4. Periapical abscess
Periodontics
Answer: 1
Local irritating factors in the gingiva are most likely to give rise to pyogenic granuloma.
The following most frequently forms at tooth-tissue interface following flap surgery or curettage
1. Scar formation
2. Adhesion of collagen fibres
3. Long junctional epithelium
4. Collagen fibres parallel to root surface
The most frequently formed tissue at the tooth-tissue interface following flap surgery or curettage is long junctional epithelium.
Following the application of disclosing solution on teeth, a patient can remove plaque most effectively by using
1. dental floss
2. a strong mouthwash
3. a water irrigating device
4. a soft bristle brush
Periodontics
Answer: 4
A soft bristle brush is the most effective tool for removing plaque after the application of a disclosing solution. It allows for thorough cleaning of the tooth surfaces, including areas that may be difficult to reach with other methods.
Which of the following gives historical record of past periodontal activity and is useful in monitoring success of periodontal therapy
1) Presence of bleeding
2) Probing depth
3) Clinical attachment
4) Recessive of gingiva
Periodontics
Answer: 2
Probing depth measurements provide historical data on periodontal attachment
levels, reflecting the past and present condition of periodontal health.
Tracking changes in probing depth is critical for assessing treatment success
and disease progression
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.