92115

The occlusal guard (night guard) is given in bruxism to reduce traumatic forces on teeth.

67195

Agar hydrocolloid must be heated to a liquefaction temperature between 70°C and 100°C to be suitable for impression taking.

17726

The correct sulfur-containing amino acid among the options provided is:

1. Cystine

Explanation:

Amino acids are the building blocks of proteins, and they are characterized by the presence of an amino group (-NH2) and a carboxyl group (-COOH). Some amino acids also contain a side chain that is unique to each amino acid and determines its chemical properties. Sulfur is an important element in the structure and function of certain amino acids.

Cystine is a sulfur-containing amino acid, which is formed by the oxidation of two cysteine molecules. Cysteine is the amino acid that contains a sulfur atom in its side chain as a thiol group (-SH). When two cysteine residues are adjacent in a polypeptide chain and the thiol groups react with each other, they form a disulfide bond (-S-S-), resulting in the formation of cystine. This disulfide bond is crucial for the tertiary structure of proteins, contributing to their stability and function, particularly in the context of protein folding and maintaining the integrity of protein domains.

The other options listed are not sulfur-containing amino acids:

2. Proline is an imino acid, meaning it contains an -NH group instead of an -NH2 group. Its side chain is a cyclic secondary amine and does not contain sulfur.
3. Arginine is a basic amino acid with a guanidino group in its side chain, which is composed of nitrogen, carbon, and hydrogen atoms but no sulfur.
4. Isoleucine is a branched-chain amino acid, with a methyl group and an isobutyl group on its side chain. It is a hydrophobic amino acid and does not contain sulfur.

63079

The primary function of Secretin is to increase bicarbonate secretion in the pancreas, helping to neutralize gastric acid in the duodenum.

57796

Extraction during acute infection helps drainage and relieves pain when proper antibiotics are given adequately. The extraction creates a drainage pathway, reducing pressure and bacterial load. However, this should only be done with appropriate antibiotic cover and when the infection is localized.

60819

Which of the following factor(s) you would like to consider for constructing a CD for a diabetic patient: all of the above.

62337

Trotters syndrome involves the nasopharynx and is caused by malignant tumors (usually nasopharyngeal carcinoma) affecting the eustachian tube opening and surrounding structures. The syndrome includes unilateral conductive hearing loss, unilateral serous otitis media, and trigeminal neuralgia due to tumor involvement of the nasopharyngeal region and skull base.

67777

93900

Acetylcholinesterase receptor opens an ion channel, undergoes irreversible conformational changes when exposed to carbamates , it is inactivated in myasthenia gravis

62914

The most appropriate line of treatment involves a fixed orthodontic appliance to retract the remaining incisor, followed by a fixed bridge to replace the missing tooth.