MDS PREP
According to Melcher concept, the regeneration of new attachment is from
1. Periodontal ligament
2. Gingival connective tissue
3. Alveolar bone
4. Junctional epithelium
Periodontics
Answer: 1
According to Melcher's concept, the regeneration of new attachment is from the periodontal ligament.
Tobacco smoking is the most common predisposing cause of which of the following
1. Cyclic neutropenial
2. Juvenile periodontitis
3. Necrotising ulcerative gingivitis
4. None of the above
Periodontics
Answer: 3
Tobacco smoking is the most common predisposing cause of necrotizing ulcerative gingivitis.
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.
The following tooth has poorest prognosis after furcation therapy due to limited instrument accessibility
1. Maxillary first molar
2. Maxillary Second molar
3. Mandibular first molar
4. Maxillary first premolar
Periodontics
Answer: 4
The tooth with the poorest prognosis after furcation therapy due to limited instrument accessibility is the maxillary first premolar.
The periodontal fiber group which inserts into two adjacent teeth is the
1. transseptal group
2. circular group
3. horizontal group
4. oblique group
Periodontics
Answer: 1
The transseptal fibers are a type of periodontal ligament fiber that run between the cementum of adjacent teeth. They help maintain the interproximal relationship between teeth and provide support to the gingival tissue. These fibers are important for the stability of the dental arch and help resist the forces that may cause teeth to drift apart.
Circular group fibers encircle the tooth.
Horizontal group fibers run horizontally between the
tooth and the alveolar bone.
Oblique group fibers run from the cementum to the bone
at an angle, providing resistance to vertical forces.
The bacteria found in gingivitis are located in the
1. alveolar bone
2. periodontal pocket
3. periodontal ligament
4 connective tissue of the marginal gingiva
Periodontics
Answer: 4
In gingivitis, bacteria primarily reside in the connective tissue of the
marginal gingiva and within the plaque biofilm on the tooth surface. This
location contributes to the inflammatory response seen in gingivitis.
After PD surgery immediate recall of patient is done after
1) 1 week
2) 2 week
3) 3 week
4) 4 week
Periodontics
Answer: 1
Following periodontal surgery, a one-week recall is standard practice to
evaluate the surgical site, ensure proper healing, and address any immediate
postoperative concerns.
Periodontal pack is least effective in
1) Providing splinting action
2) Haemostatic mechanism
3) Pain elimination
4) Antimicrobial action
Periodontics
Answer: 3
Periodontal packs are primarily used for their antimicrobial, haemostatic, and splinting properties. While they provide a good antimicrobial environment and can aid in haemostasis, they are not typically used for pain elimination. The main purpose of a periodontal pack is to deliver medication directly to the periodontal pocket and help stabilize the gum tissue around the teeth. Pain relief is generally managed through other means such as analgesics or local anesthetics.