90883

Alpha adrenergic agonists are used in combination with local anaesthetics to increase the concentration of LA at receptor site.

98006

Junctional nevi are moles where the nevus cells (melanocytes) are located at the junction of the epidermis (outer layer of skin) and the dermis (inner layer of skin). Because they are in the basal layer of the epidermis, where melanomas originate, they have a higher potential for malignant transformation into melanoma compared to intradermal nevi, where cells are deeper in the dermis. Lichen planus and papillomas are generally benign conditions

90794

Periapical radiographs are essential tools in endodontic practice. They help in determining the length of the root canal during procedures like root canals. They can also reveal signs of infection or inflammation around the apex of the tooth (periapical pathosis), which indicates the presence of infection in the pulp.

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24028

Insulinomas are neuroendocrine tumors of the pancreas. They can occur throughout the pancreas with equal frequency in the head, body, and tail.

55525

Loss of lamina dura and ground glass appearance indicates fibrous dysplasia.

64548

An RPD, or Removable Partial Denture, is a dental appliance that replaces one or more missing teeth. It is important to clean an RPD thoroughly after every meal to remove food debris and plaque, which can lead to dental issues like gum disease, decay of remaining teeth, and bad breath. Cleaning an RPD regularly helps maintain oral hygiene and the health of the patient's remaining teeth and gums. While it is generally recommended to clean it at least twice a day, cleaning after every meal is ideal to prevent the buildup of bacteria and food particles. The patient should also soak the RPD in a cleaning solution overnight to ensure thorough sanitization and maintenance of the appliance.

70701

Acetic acid is a key ingredient in the fixing solution used in radiography. It acts as a stop bath, neutralizing the developer and maintaining the acidic environment necessary for proper fixation. Hydroquinone and elon are developer agents, while sodium bisulfate is not typically part of the fixing process.

99276

The setting time is controlled by a retarder, typically sodium phosphate. It preferentially reacts with calcium ions before the calcium alginate gel can form, thus delaying the set. Increasing or decreasing its concentration creates the different setting variants.

52737

Because residual H₂O₂ might react with debris and produce gas that can cause continuous pain.