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NEET MDS Shorts

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General Medicine

Angina pectoris can cause a medical emergency in the dental office with substernal pain, facial pallor, and cold perspiration. The stress of dental procedures can precipitate anginal attacks in susceptible patients. Other conditions listed typically present differently.

23684
Oral and Maxillofacial Surgery

An intraoral periapical x-ray is the primary diagnostic tool for detecting impacted molars. This type of x-ray provides a detailed view of the entire tooth, including the surrounding bone and tissues, allowing the dentist to determine the position and angulation of the impacted tooth in relation to the adjacent structures. However, a CBCT may be used in more complex cases for a three-dimensional assessment.

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Prosthodontics

To make an impression of hyperplastic tissue, one should ensure intimate contact of the impression material with the tissue.

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Periodontics

According to Melcher's concept, the regeneration of new attachment is from the periodontal ligament.

24122
Anatomy

Branches of Maxillary nerve are 1. Middle meningeal n. 2. zygomatic n. : zygomaticofacial, zygomaticotemporal 3.pterygopatine branches : orbital, post. sup. lat. nasal , medial septal, greater palatine, middle palatine , post. palatine 4. post. sup alveolar 5. Infraorbital middle sup. alveolar anterior sup. alveolar 6. Terminal lat. nasal inf. palpebral sup. labialis

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Physiology

Ghrelin is a hormone produced mainly by the stomach that stimulates appetite and food intake. It acts on the hypothalamus to increase hunger and is often referred to as the "hunger hormone." It also stimulates growth hormone secretion from the pituitary gland.

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INI CET

Standard steam sterilization (autoclaving) requires 121°C at 15 psi for 15 minutes.

19855
Periodontics

Biobrane is a commercially available biodegradable membrane.

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Prosthodontics

An abutment is a tooth or implant that provides support for a fixed or removable prosthesis. It is crucial for the stability and retention of the prosthetic device.

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Microbiology

There are some enzymes that cause protein to coagulate rather than to produce simpler compund These are known as lab enzymes

1. Coagulase:

  • Definition: Coagulase is an enzyme produced by certain bacteria, most notably Staphylococcus aureus. It catalyzes the conversion of fibrinogen (a soluble plasma protein) into fibrin (an insoluble protein), leading to the clotting of blood.
  • Function: The production of coagulase is a virulence factor for Staphylococcus aureus, as it helps the bacteria evade the host's immune system by forming a protective clot around the bacterial cells. This clot can shield the bacteria from phagocytosis and other immune responses.
  • Clinical Relevance: Coagulase is used in laboratory tests to differentiate between pathogenic Staphylococcus aureus (coagulase-positive) and non-pathogenic staphylococci (coagulase-negative).

2. Proteolytic Enzymes:

  • Definition: Proteolytic enzymes, also known as proteases or peptidases, are enzymes that catalyze the breakdown of proteins into smaller peptides or amino acids by cleaving the peptide bonds between amino acids.
  • Function: These enzymes play crucial roles in various biological processes, including digestion, protein turnover, cell signaling, and immune responses. They are found in many organisms, including humans, where they are involved in the digestion of dietary proteins in the stomach and small intestine.
  • Types: Proteolytic enzymes can be classified based on their mechanism of action (e.g., serine proteases, cysteine proteases, aspartic proteases, and metalloproteases) and their substrate specificity.

Wenmycin is an antibiotic that is derived from the bacterium Streptomyces wenyangensis. It belongs to the class of compounds known as macrolide antibiotics, which are characterized by their large lactone ring structure. Wenmycin has been studied for its antimicrobial properties, particularly against certain types of bacteria.

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Anatomy

Physiology

Biochemistry

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Dental Anatomy

Pathology

Microbiology

Pharmacology

Oral Pathology

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