MDS PREP
Radiographs alone can be used to accurately determine the
1. presence of calculus
2. anatomic root length
3. presence of an apical abscess
4. severity of gingivitis
Periodontics
Answer: 2
Radiographs allow clinicians to see the anatomical structure of the root;
however, they often cannot accurately assess conditions like the presence of
calculus or severity of gingivitis.
An acute periapical abscess can be differentiated from an acute periodontal abscess most reliably by the
1. degree of tooth mobility
2. nature of the swelling
3. blood and urine examination
4. response to periodontal probing
Periodontics
Answer: 4
The response to periodontal probing is a reliable method to differentiate
between an acute periapical abscess and an acute periodontal abscess. An acute
periapical abscess typically does not show significant probing depth changes,
while a periodontal abscess may show increased probing depths due to periodontal
tissue involvement.
A suturing needle used in periodontal surgery should have
1. A swedged suture needle
2. Have rounded point
3. Have double cutting edge
4. All of the above
Periodontics
Answer: 1
A suturing needle used in periodontal surgery should have a swedged suture needle.
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.
A young adult shows non-fluctuant, tender and redness swelling in the marginal ginginal lesion. This is most likely:
1. Periodontal abscess.
2. Periapical abscess.
3. Gingival abscess.
4. Periapical sinus.
Periodontics
Answer: 3
A gingival abscess is localized to the gingiva
and typically presents as a painful, non-fluctuant swelling with redness and
tenderness. It differs from periodontal abscesses, which involve deeper
structures, and periapical abscesses, which originate from the tooth apex.
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 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
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.