MDS PREP
The type of bone present labial to anterior teeth is
1. spongy
2. cortical
3. cancellous
4. squamous
Periodontics
Answer: 1
The bone located labial to anterior teeth is typically compact bone but can be
described as spongy or cancellous in some contexts referring to the internal
structure, depending on proximity to the tooth roots.
Vestibular extension procedure results in
1. Increase in width of keratinised attached gingiva
2. Decrease in width of keratinised attached gingiva
3. Increase in width of non-keratinised attached gingiva
4. Decrease in width of non-keratinised attached gingiva
Periodontics
Answer: 3
Vestibular extension procedure results in an increase in width of non-keratinised
attached gingiva
The vestibular extension procedure is a surgical treatment that involves the
apical movement of the vestibular mucosal tissue to increase the width of
attached gingival tissue around a tooth. This procedure typically does not alter
the width of the keratinized attached gingiva, which is the tissue that is
directly connected to the tooth surface. Instead, it primarily increases the
non-keratinized attached gingival width, which is the part of the gingival
tissue that is not directly attached to the tooth but is still important for
periodontal health and aesthetics.
Subgingival curettage may result in all of of the following, except
1. root exposure
2. increased height of the gingiva
3. elimination of pockets
4. root sensitivity
Periodontics
Answer: 2
Subgingival curettage typically involves the removal of diseased tissue and can lead to root exposure and increased sensitivity. It may also help eliminate periodontal pockets. However, it does not result in an increased height of the gingiva; rather, it may lead to a reduction in gingival height due to tissue removal.
The first sequential step in osseous resection technique
1. Vertical grooving
2. Radicular blending
3. Flattening interproximal bone
4. Gradualising marginal bone
Periodontics
Answer: 1
The first sequential step in the osseous resection technique is vertical grooving.
A Gracey curette is said to be correctly adapted when the
1. Handle is parallel to the long axis of the tooth
2. Angle of blade to the tooth is 40
3. Lower shank is parallel with the tooth surface being sealed
4. None of the above
Periodontics
Answer: 3
The Gracey curette is a dental instrument used for subgingival scaling and root planing. Correct adaptation of the curette involves placing it at the correct angle to the tooth surface to effectively remove plaque and calculus. The lower shank of the curette should be parallel with the tooth surface to allow for proper engagement with the tooth structure.
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.
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.
Reattachment procedures most commonly
1. Reduce pocket depth by formation of long junctional epithelium
2. Reduce pocket depth by reattching periodontal connective tissue fibers
3. Usually heal by secondary intention
4. None of the above
Periodontics
Answer: 1
Reattachment procedures most commonly reduce pocket depth by formation of long junctional epithelium.