Glossary

machined surface

Syn.: Turned surface An implant surface that results from the milling process of a cylindrical titanium rod. The scratches of the tooling on the implant form a machined implant surface.

Magnesium

Magnesium can be used as implant material. It has metallic strength and can be bioabsorbed (converted in magnesium oxide and hydrogen, degradation, corrosion). It can be used to stabilize bone fractures. Mechanical properties are similar those of natural bone.   more details: 1. Bioresorbable Magnesium Implants for Bone Applications by Olga Wetterlöv Charyeva

malleolus

The hammer-shaped bony protrusions on the tibia (malleolus medialis) and fibula (malleolus lateralis), which are part of the upper ankle joint as a malleolus fork, are called malleolus.

Mammography

Use of radiography (X-rays) of the breast to detect breast cancer. Recommended as a screening technique for early detection of breast cancer.

Mandibular staple implant

Syn.: Transmandibular implant. An dental transosseous implant in which a plate is fixed at the inferior border of the mandible. Retentive screws are placed partially into the inferior border with two continuous screws going transcortically and penetrating into the mouth in the canine areas and used as abutments for a removable denture.

Manufacturers Sharing Patient-Specific Information from Medical Devices with Patients Upon Request

This guidance represents the current thinking of the Food and Drug Administration (FDA or Agency) on this topic. It does not establish any rights for any person and is not binding on FDA or the public. You can use an alternative approach if it satisfies the requirements of the applicable statutes and regulations. To discuss …

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Mastopexy

Plastic surgery to raise and reshape sagging (ptotic) breasts into a more elevated position.

Matrix

An intricate network of natural or synthetic fibers that aids in the reinforcement and development of tissues by supplying a scaffold on which cells may grow, migrate and proliferate.

maxillofacial

relating to the maxilla (upper jawbone) and the face. Maxillofacial surgery is a specialization of medicine and/or dentistry that focuses on problems around the mouth, jaw, midface and neck. Anatomical limits and skills differ country-to-country. In some countries doctors attend medical school, dental school and than an additional residency. In other countries they attend either …

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MCP

Metacarpophalangeal joint

MCPM

Monocalcium Phosphate Monohydrate

Mean

(arithmetic) Measure of central tendency that is calculated by adding all the individual values in the group and dividing by the number of values in the group.

Mechanical Heart Valve

durability Mechanical heart valves can last indefinitely (tested over 50,000 years in an accelerated tester) types Caged-ball valve Tilting-disc valves Bileaflet heart valves materials Carbon, titanium, titanium coated with pyrolytic carbon, Teflon (PTFE), polyester, dacron side effects Mechanical heart valves require lifelong treatment with blood thinners (anticoagulants) and periodically blood tests to monitor. adverse effects …

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Median

Measure of central tendency. It is the middle score in a distribution or set of ranked scores. When the number of values in the sample is even, the median is computed as the average of the two middle values.

Medical device

ISO: A medical device is a product, such as an instrument, machine, implant or in vitro reagent, that is intended for use in the diagnosis, prevention and treatment of diseases or other medical conditions.

membrane

A membrane is a selective barrier; it allows some things to pass through but stops others. Membranes can be biological and synthetic.

Mesostructure

Dental The part of a dental reconstruction, that couples the implant complex (infrastructure) to the suprastructure.

Meta-analysis

A quantitative method of combining the results of independent studies measuring specified protocol criteria (usually drawn from the published literature) and synthesizing summaries and conclusions that may be used to evaluate therapeutic effectiveness, and plan new studies.

MICS

Minimally Invasive Cardiac Surgery

MIS

Minimally Invasive Surgery

MIS

Minimally Invasive Spine (port system or access)

MLD

Molecular layer deposition

Modulus of elasticity

Ratio of stress over strain., when the deformation is elastic. It is a measure of stiffness or flexibility of a material. A stiff material has a high modulus of elasticity and a flexible material ha s a low modulus of elasticity. Syn.: Young´s modulus

MTP

metatarsophalangeal

Mucosal insert

Syn.: Button implant, epithelial implant, intramucosal insert, mucosal implant. Mushroom-shaped device fastened to the tissue surface of a removable denture that fits within a prepared gingival receptor site. The use of multiple mucosal inserts enhances a denture´s retention and stability. As it does not perforate dermal/mucosal integrity, it is no real implant.

MVR

Mitral Valve Regurgitation

myopia

Myopia, or near-sightedness or short-sightedness, is an eye disorder where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal. Myopia may cause headaches and eye strain.

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