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Due to their inert nature, medical-grade Silastic-brand silicone elastomers are important materials in numerous medical and pharmaceutical devices including catheters, pacemaker leads, tubing, wound dressings, silos for abdominal wall defects, [2] and nasolacrimal duct obstruction. [3]
Medical grade silicones are silicones tested for biocompatibility and are appropriate to be used for medical applications. [1] In the United States, the Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH) regulates devices implanted into the body. It does not regulate materials other than certain dental materials.
A silicone mold generally requires little or no mold-release or surface preparation, as most materials do not adhere to silicone. For experimental uses, ordinary one-part silicone can be used to make molds or to mold into shapes. If needed, common vegetable cooking oils or petroleum jelly can be used on mating surfaces as a mold-release agent. [22]
There are two major purposes of luting agents in dentistry – to secure a cast restoration in fixed prosthodontics (e.g. for use of retaining of an inlay, crowns, or bridges), and to keep orthodontic bands and appliances in situ. In a complex restoration procedure, the selection of an appropriate luting agent is crucial to its long-term ...
Nasogastric intubation is a medical process involving the insertion of a plastic tube (nasogastric tube or NG tube) through the nose, down the esophagus, and down into the stomach. Orogastric intubation is a similar process involving the insertion of a plastic tube (orogastric tube) through the mouth. [1] Abraham Louis Levin invented the NG tube.
Tygon Medical Tubing S-54-HL was introduced in 1964 for use in medical applications. This material can be used in catheters , for intravenous or intra-arterial infusion and other surgical uses. Tygon S-54-HL can also be fabricated into cannulae or protective sheath products using thermoforming and flaring techniques.
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Dental restorative materials are used to replace tooth structure loss, usually due to dental caries (cavities), but also tooth wear and dental trauma. On other occasions, such materials may be used for cosmetic purposes to alter the appearance of an individual's teeth.