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NEET MDS Shorts

11490
Periodontics

In the early stages of dental plaque formation, particularly within the first few days, the predominant microorganisms are typically cocci, especially Streptococcus species. These bacteria are among the first to colonize the tooth surface after a cleaning, forming a biofilm.

  • Lactobacilli are more commonly associated with mature plaque and caries development, as they thrive in acidic environments.
  • Fusiform bacilli and vibrios are more commonly found in later stages of plaque development or in specific conditions, such as periodontal disease.

Thus, in a two-day-old dental plaque, the majority of microorganisms will indeed be cocci

96542
NEETMDS

1) Syphilitic
Syphilitic ulcers, specifically the chancre associated with primary syphilis, are classically described as having "punched out" margins and a clean base. This distinct appearance helps in clinical differentiation from other types of ulcers.

82949
INI CET

Alginate is derived from alginic acid, which is extracted from brown seaweed. It reacts with calcium sulfate to form a stable gel.

49257
Orthodontics

SOLUTION 

Gingival group of fibers 
Principal fibers of the periodontal ligament rearranges themselves quite rapidly to the position in about 4 weeks.The supra-alveolar gingival fiber take as much as 40 weeks to rearrange around the new position and thus predispose to relapse.

77336
Oral Pathology

Chemotherapy can be successful in the treatment of leukemia.

63063
Oral Pathology

Myositis ossificans generalisata (fibrodysplasia ossificans progressiva) causes progressive ossification of muscles, tendons, and ligaments, leading to a "petrified" or stone-like condition where the patient becomes immobilized. This rare genetic disorder progressively restricts movement as soft tissues calcify. Dystrophic myotonia, dermatomyositis, and proliferative myositis do not cause this petrification process.

82294
Endodontics

Periapical surgery (also called apicoectomy or endodontic surgery) involves surgical intervention at the root apex and surrounding periapical tissues. Like any surgical procedure, it carries potential complications:

Paraesthesia → Injury or irritation of nearby nerves (e.g., inferior alveolar or mental nerve) can cause temporary or permanent altered sensation.

Ecchymoses → Bruising of soft tissues due to surgical trauma or bleeding in the operative area.

Stitch abscess → Localized infection at the suture site due to bacterial contamination or improper healing.

Since all of these can occur, the best choice is “All of the above.”

10112
Physiology

Pernicious anemia is caused by the lack of intrinsic factor, which leads to impaired vitamin B12 absorption and subsequent megaloblastic anemia.

47973
Oral Pathology

Mumps is a classic cause of acute, non-suppurative (not producing pus) sialadenitis, specifically affecting the parotid glands.

78994
Dental Materials

 

 

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