MDS PREP
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.
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.
The term "sounding" is associated with
1. Radiographic assessment of osseous morphology
2. Transgingival probing
3. Collection of crevicular fluid
4. Pecussion of tooth
Periodontics
Answer: 2
The term "sounding" is associated with transgingival probing.
Which of part of the instrument should remain parallel (whenever possible) to the long axis of the tooth?
1. Blade
2. Cutting edge
3. Handle
4. Shank
Periodontics
Answer: 4
The part of the instrument that should remain parallel to the long axis of the tooth is the shank.
Which of the following changes occur in tissues around teeth o of function for a long time?
1. Atrophy of cementum
2. Secondary dentin deposition
3. Thickening of the periodontal ligament
4. Osteoporosis
Periodontics
Answer: 4
Long-term functional changes around teeth can lead to osteoporosis in the
alveolar bone, which is characterized by a decrease in bone density. This can
affect the support of the teeth.
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.
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.
The main blood supply to the buccal marginal gingiva is from the
1. subperiosteal vessels
2. interdental alveolar blood vessels
3. main artery of the pulp
4. supraperiosteal vessels
Periodontics
Answer: 4
The buccal marginal gingiva receives its main blood supply from the supraperiosteal vessels, which are located above the periosteum (a layer of connective tissue that covers the bone). These vessels are part of the periodontal ligament's blood supply and provide nutrients to the superficial tissues of the gum