Category: P

Homopolymer of tetrafluoroethylene (CF2‐CF2)n that is a nonflammable, tough, inert resin with good resistance to chemicals and heat. Used as a surgical implant material for guided tissue regeneration (GTR), guided bone regeneration (GBR), prostheses such as artificial vessels and orbital floor implants, and for many applications in skeletal augmentation and skeletal fixation. Also used widely…

A synthetic rubber used in dental impression materials; it contains chains of sulfur atoms that are anionic or organic in nature.  

A pedunculated tumor arising from a mucous membrane. A growth that protrudes from a mucous membrane. A stemmed growth that arises from the mucosa and extends into the lumen or opening of any body cavity. A tumour growing on a stalk in mucous membrane, which can be cauterised. Polyps are often found in the nose,…

Pertaining to or affecting many bones.  

A type of scavenging white blood cell involved in fighting infections that contains a segmented lobular nucleus and is colorless because of the lack of hemoglobin; eosinophils, basophils, and neutrophils are in this category. The most numerous of the white blood cells (also known as neutrophil). White blood cell that possesses a nucleus composed of…

Existing in multiple forms or having numerous morphologic types. The occurrence together of two or more distinct forms in the same population. The property of a chemical substance crystallizing (or simply existing) in two or more forms having different structures. For example, diamond and graphite are two different structures (manifestations) of the element carbon. Deoxyribonucleic…

Bone cement, a polymer of methylmethacrylate, which polymerizes in situ with curing temperatures exceeding 100 °C; completely nonbiodegradable.  

Chemical compound or compound mixtures created by molecular reaction to form larger organic molecules containing repeating structural units. A longchain hydrocarbon. A very large, complex molecule formed by chemically binding together a large number of identical smaller units or monomers. Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These…

Biodegradable, hydrophobic, thermoplastic, and aliphatic polyester derived from lactic acid. PLA can be processed in fiber and film and has extensive applicability. In the biomedical field, it is used in a number of applications, including sutures, drug delivery devices, membranes, and as a carrier for bone morphogenetic proteins (BMPs). Called also polylactide.  

A collection of vertices, edges, and faces that defines the shape of a polyhedral object in 3D computer graphics and solid modeling. The faces usually consist of triangles, quadrilaterals, or other simple convex polygons.