ascending aortic prosthesis
Acrylonitrile butadiene styrene
Anterior Cervical Discectomy and Fusion Anterior Cervical Discectomy and Fusion is cervical spine surgery from the front of the neck that addresses spinal symptoms.
Autologous Chondrocyte Implantation A technique for the treatment of large isolated cartilage defects. A small sample of cartilage is harvested from a non-weight-bearing part of the joint during arthroscopy. In a laboratory the chondrocytes are dissolved away of the tissue composite and multiplied in culture dishes. After a cultivation period of 3 to 4 weeks …
Treatment of an implant surface by acid in order to increase its surface area by subtraction.
Anterior cruciate ligament
Anterior Cruciate Ligament Reconstruction
Treatment of an implant surface by addition of material, e. g. to increase the surface or build an interactive layer.
Attention deficit hyperactivity disorder
AdvaMed, or the Advanced Medical Technology Association, is an American medical device trade association. AdvaMed’s states to promote competitive policies that foster the highest ethical standards, rapid product approvals, appropriate reimbursement, and access to international markets. Some companies follow the “AdvaMed Code of Ethics on Interactions with Health Care Professionals”.
Atomic Layer Deposition ALD uses timed pulses of reactive precursors to encapsulate all exposed surfaces of a substrate for coating. It gets its name from the nature of these pulses, each of which deposits a single self-terminating layer. It is a subclass of chemical vapour deposition (CVD). The coating can be controlled with atomic precision.
Anterior Lumbar Interbody Fusion ALIF is a procedure where surgeons work on the lower spine from the front and fuse one or more vertebrae together.
A nonbiologic material such as metal, ceramic, and plastic.
Anterior Lumbar Plate (for spine)
Al2O3 A metallic oxide Single crystal Polycrystal Used eg for dental implants, hip implants.
A deficiency in the contour of the alveolar ridge. It can be vertical (apicocoronal) and/or horizontal (buccolingual, mesiodistal)
ALCL is a rare type of non-Hodgkin’s lymphoma, a cancer of the immune system cells.
Formation of new blood vessels
absence of iris
annuloplasty is a surgical technique repairing heart valves
Agence nationale de sécurité du médicament et de produits de santé France
Anchor Peg Glenoid
Autonomic Regulation Therapy
Arthrodesis (also artificial ankylosis or syndesis), is the artificial induction of joint ossification between two bones by surgery. This is done to relieve intractable pain in a joint which cannot be managed otherwise. It is most commonly performed on joints in the spine, hand, ankle, and foot.
The artificial kidney is not available yet. Researchers are working on it and the first implanted artificial kidney is expected in 2017. USCSF The new device being developed by a group of US universities within the Kidney Project. This small bio-artificial kidney, intended to treat end-stage renal disease (ESRD), will offer new hope to those …
atrial septal defect An Atrial Septal Defect (ASD) is a common congenital cardiac defect that consists of a hole in the septum between the two filling chambers of the heart, the atriums.
ASTM International (formerly American Society for Testing and Materials), develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services (as of today some 12,575). Headquarter is near Philadelphia, U.S.A. Founded in 1898. ASTM International has no role in requiring or enforcing compliance with its standards. The standards, however, …
Decrease in size of a cell, organ, tissue or part.
Dental: Mechanical device used for the retention and stability of a dental prosthesis.
Tissue surgically removed from one area of a person’s body and transplanted in another site on the same person.
In transplantation (and blood transfusion), when the donor and recipient are the same person.
ACI (Autologous chondrocyte implantation) repairs articular cartilage. It works in three stages: 1. Arthroscopically sampling of 200 to 300 mg cartilage. 2. Isolated chondrocytes are grown in vitro for about four to six weeks. 3. Chondrocytes are applied in a second intervention on the damaged area. The autologous cells should adapt themselves to their new …
Lacking blood vessels.
aortic valve replacement
Any force applied in the direction of the long axis of an implant.
Dental Removable partial or complete denture, supported by dental implants or implants and tissue. Dental implants are connected together with a bar, representing or incorporating attachment mechanisms for retention and/or support of a denture.
Brain Controlled Bionic Ear
Bundesinstitut für Arzneimittel und Medizinprodukte German state authority for pharmaceutical products and medical devices
syn.: Absorbable Property of a material that degrades and dissolves in vivo. Its breakdown products are incorporated into normal physiologic and biochemical processes (e.g. bioabsorbable membranes or sutures).
Designed to assist or modify a biological activity.
Capacity of a material to fulfil its function with an appropriate response for a specific application from the receiving host. Quality of being accepted in a specific living environment without adverse or unwanted side effects. ——————————————————————————————————————— Biomaterials are non-living natural or synthetic materials that are used in contact with the living body and must therefore be biocompatible …
Progressive alteration or breakdown of a material in a biological environment.
Progressive alteration of a material in a biological environment.
Products derived from living tissues (animal or vegetable).
Scientific field that deals with the mechanical properties of any biomechanical device, device-tissue interface or the properties of tissues themselves.
Able to replicate or imitate a body structure (anatomy) and/or function (physiology).
Biomimetics or biomimicry is the imitation of the models, systems, and elements of nature for the purpose of solving complex human problems.
Bionics or biologically inspired engineering is the application of biological methods and systems found in nature to the study and design of engineering systems and modern technology.
Removal and examination of sample tissue for diagnosis.
Workable, non-resorbable glass ceramic out of the SiO2-Al2O3-MgO-Na2O-K2O-F-system by 3di GmbH. Crystal phase (ca. 60 %) with mainly phlogopit-crystals, embedded in a alumosilicateglassmatrix (ca. 40 %).
Acro.: BCS biphasic calcium sulfate dihydrate (CSD) The medical use of Calcium Sulfate has the longest history in the augmentation field, with over 120 years of use in the areas of Orthopedics, Plastics, Oncology and Maxillofacial medicine. The initial setting time is approximately 3-5 minutes. The material is completely resorbed within 4-10 weeks, coinciding with …
also: BCP Chemistry: Mixture of two phases, hydroxyapatite, HA, and β-tricalcium phosphate. It is a ceramic. Preparation involves the sintering causing the irreversible decomposition of calcium deficient apatites alternatively termed non-stoichiometric apatites or basic calcium phosphate, an example is: Ca10-δ(PO4)6-δ(HPO4)δ(OH)2-δ → (1-δ)Ca10(PO4)6(OH)2 + 3δCa3(PO4)2. It has been used in implants for petiapical tooth surgery, in orthopedic surgery. …
biventricular assist device While left ventricular assist devices (LVADs) are common treatment for patients with heart failure, a sizeable portion of LVAD recipients demonstrate clinically significant postoperative right ventricular failure and potentially require a biventricular assist device (BiVAD). (Mechanical Circulatory and Respiratory Support)
Acronym: Basic multicellular unit.
A psychological condition characterized by excessive worry about an imagined or minor physical flaw to the point that it can interfere with normal daily activities.
The hard portion of the connective tissue that constitutes the majority of the skeleton. It consists of an inorganic component (67%, minerals such as calcium phosphate) and an organic component (33%, collagenous matrix and cells) Cortical bone. Syn.: Compact bone. The noncancellous hard and dense portion of bone consisting largely of concentric lamellar osteons and …
Bone conduction is the conduction of sound to the inner ear through the bones of the skull. Bone conduction transmission can be used with individuals with normal or impaired hearing. Bone conduction is used in the following applications: – hands-free headsets or headphones – bone-anchored hearing aids with assistive listening devices – specialized communication products …
There are different definitions, non of them with exact reliable data for clinical use: 1, Histological: The “density” is calculated from the percentage of all bone tissue that is constituted by mineralized bone 2, Radiological: Mineral in bone is measured by x-ray translucency, defined as Hounsfield units. 3, Clinical: Tactile assessment of bone quality while …
There are different classifications of bone density (quality) in oral implantology. Lekholm U, Zarb GA: Patient selection and preparation. In: Brånemark PI, Zarb GA, Albrektsson T. Tissue integrated Prostheses: Osseointegration in Clincal Dentistry. Chicago: Quintessence Publishing Co. Inc.; 1985:199-209. Bone Density/Quality Types I: Almost the entire jaw is comprised of homogenous compact bone. II: …
Of or pertaining to cattle.
The Brazilian buttock lift, more commonly known as a The Brazilian butt lift (BBL) aka Brazilian buttock lift, is an aesthetic procedure that helps improve the shape of the buttocks by injecting it with fat from other areas of the body (liposuction). Other areas can be: abdomen, thighs, lower back. Commonly it is an outpatient …
A surgery to reconstruct a breast after tissue was removed because of cancer or injury.
A bridge therapy means to bridge to another stage of therapy or health. There are various types of bridge therapies: Bridge to transplant Bridge to candidacy Bridge to decision Bridge to recovery Anticoagulation bridge Opposite: Destination therapy
Computer-aided design/computer-aided manufacturing Process for direct preparation of an object from computer-acquired or computer-generated data
Calcium carbonate is a chemical compound with the formula CaCO3. It is medicinally used as a calcium supplement or as an antacid, but excessive consumption can be hazardous. As a food additive it is designated E170, and it has an INS number of 170.
Calcium phosphate is a family of materials and minerals containing calcium ions (Ca2+) together with inorganic phosphate anions. Some so-called calcium phosphates contain oxide and hydroxide as well. It is used in some varieties for bone substitution as implant. Orthophosphates, di- and monohydrogen phosphates contain Ca2+ combined with PO43−, HPO42−, and/or H2PO4−: Monocalcium phosphate, Ca(H2PO4)2 …
Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum. All forms are white solids that are poorly soluble in water. Calcium sulfate causes permanent hardness in water. Mixed with polymers, …
Scar tissue that forms around the breast implant. Sometimes this capsule squeezes the implant, resulting in capsular contracture.
The human cardiovascular system consists of heart, blood and blood vessels. It includes the small, pulmonary circulation, the way through the lungs to get the blood oxygenated; and the systemic circulation, through the rest of the body.
A cataract is an opacification of the lens of the eye which leads to a decrease in vision.
At the cathode electrons enter the cell and reduction occurs (“+”).
The Center for Devices and Radiological Health (CDRH) is the branch of the FDA responsible for the premarket approval of all medical devices, as well as overseeing the manufacturing, performance and safety of these devices. The definition of a medical device is given in the FD&C Act. CDRH regulatory powers include the authority to require …
Central Drugs Standard Control Organisation Directorate General Of Health Services Ministry of Health &Family Welfare, Government of India
CE marking is a certification mark that indicates conformity with health, safety, and environmental protection standards for products sold within the European Economic Area (EEA). It is the manufacturer’s declaration that the product meets the requirements of the applicable EC directives. The mark consists of the CE logo and, if applicable, the four digit identification …
European Committee for Standardization CEN, the European Committee for Standardization, is an association that brings together the National Standardization Bodies of 34 European countries. CEN is one of three European Standardization Organizations (together with CENELEC and ETSI) that have been officially recognized by the European Union and by the European Free Trade Association (EFTA) as …
In first-party certification, an individual or organization providing the good or service offers assurance that it meets certain claims. In second-party certification, an association to which the individual or organization belongs provides the assurance. Third-party certification involves an independent assessment declaring that specified requirements pertaining to a product, person, process, or management system have been …
China Food and Drug Association State Administration for Market Regulation
colony forming unit (stem cells)
A human microchip implant is typically a data transmitting device, usually encased in silicate glass. It can be used to identify persons, contain personal data like medical history, medications, contact informations.
continuous intraperitoneal insulin infusion
= Critical Incident Reporting-System The Critical Incident Technique (or CIT) is a set of procedures used for collecting direct observations of human behavior that have critical significance and meet methodically defined criteria. These observations are then kept track of as incidents, which are then used to solve practical problems and develop broad psychological principles. A critical …
CleanImplant checks the quality of dental implants by the purity of the implant surfaces.
A substance applied to an implants surface.
Cyclic Olefin Copolymer
A cochlear implant is an electronic medical device for people with severe-to-profound hearing loss. It works by transforming sounds into electrical signals that are sent straight to the auditory nerve. This means that it can bypass damaged areas of the ear.
A longitudinal study in which a group, the cohort, is chosen for the presence of a specific characteristic at or during a specified time and followed over time to discover presumably related characteristics.
Collagen is the main component of connective tissue. A molecule characterized by a triple helical structure and a high content of glycine, proline and hydroxyproline. It is the major constituent of connective tissue fibers, the organic matrix of bone, dentin, cementum, and basal laminas. Collagen is synthesized by fibroblasts, chondroblasts, osteoblasts and odontoblasts. Several types …
Combinations of different grafting materials.
Combinations of materials of biological or non-biological origins or both.
Surgical placement of implants using a computer guided system based on information generated from a high resolution computed tomography.
dental: A conical connection is an abutment connection with dental implants. Conical connections are said to be linked with the implant so tight, that they have no micromovement and help avoiding bacteria to enter into the inner part of the dental implant. literature: https://implant-register.com/multicenter-study-evaluating-the-novel-tapered-conical-connection-implants-1-year-results/
Connective tissue is a basic human tissue. There are many subdivisions. It is found in between other tissues.
Cyclic Olefin Polymer
Chronic obstructive pulmonary disease
Surgical technique in which only the bony cortex is surgically cut.
Continuous positive airway pressure.
Comprehensive Platform Management Astigmatism
Study that involves the observation of a defined population at a single point in time or time interval.
Complex Regional Pain Syndrome (CRPS I/II, Causalgia) According to the National Health Service (NHS), pain associated with CRPS is typically caused by an injury and is usually confined to one limb, but can spread to other parts of the body. Pain symptoms include burning, stabbing or stinging, but may also include a tingling sensation and …
Cardiac resynchronization therapy defibrillators
A cruciate retaining knee implant leaves an intact posterior cruciate ligament (PCL) in the back of the knee to help with knee flexion and ligament tension. The advocates of the CR knee design claim less bone removal from the femur, easier femoral component revision, and tighter ligaments in the back of the knee. The opponents …
Capsular Tension Ring For the stabilization of the capsular bag in the presence of weakened or compromised zonules. Possible benefits: • Circular expansion and stabilization of the capsular bag • Safe IOL centration in eyes with zonular dehiscence • Prevents IOL decentration after capsular shrinking • Stabilized conditions during phaco emulsification surgery • Reduced risk of capsular …
Measure of percentage of implant success over a period of time.
Measure of percentage of implant survival over a period of time.
Dental A custom component to wear a tooth-crown machined or cast to serve in a unique circumstance where prefabricated components are not acceptable.
A cyborg, abb. for “cybernetic organism” has both organic and biomechatronic body parts. The term cyborg is different from bionic, biorobot or android.
Dental An endosseous root-form press-fit implant, with parallel-sided walls.
Delayed auditory feedback
Deep Brain Stimulation
drug coated balloon Drug-Coated Balloon angioplasty is similar to plain old balloon angioplasty procedurally, but there is the addition of an anti-proliferative medication coating the balloon, as well as an excipient to aid in drug transfer, which may help prevent restenosis.
Dynamic Compression Plate LC-DCP: Limited Contact – Dynamic Compression Plate. The dynamic compression plate is used like other osteosynthesis plates. Only the drill hole is constructed differently. The geometry of the screw head and plate hole in the DCP is such that a congruent fit is achieved even if the screw is at an angle …
Dynamic Condylar System or Dynamic Condylar Screw The DCS Screw is designed to provide strong and stable internal fixation of certain distal femoral and subtrochanteric fractures, with minimal soft tissue irritation.
Dynamic Condylar Sliding System
Degenerative Disc Disease (source: Axiomed LLC)
A defibrillator is used to treat cardiac dysrhythmias. Specifically it helps for ventricular fibrillation (VF). A defibrillator delivers a dose of electric current to the heart. Manual external defibrillator Manual external defibrillators are used by healthcare professionals. They are used in conjunction with an electrocardiogram to diagnose the cardiac rhythm and then manually determine the …
Premature opening of a primary surgical tissue closure.
Refers to the time of applying force on an implant after initial placement. This term mostly is used in oral surgery/dental implantology. The prosthesis is brought in function after a certain healing period. The healing period may be very different, depending on some factors like general predisposition, diseases, tissue health, intensity of use, cooperation.
ISO definition: A device designed to be placed surgically within or on the mandibular or maxillary bone to provide restistance to displacement of a dental prosthesis (ISO 1942:2009). A biocompatible device placed within, or on, bone of the maxilla or mandible, to provide support for a prosthetic reconstruction.
Dental Threaded root-form implant. It can be parallel-sided or tapered.
Dental Implant designed to rest on the surface of bone, under the periosteum. It is customized, sometimes stabilized with screw(s). Complete subperiosteal implant: Used in the complete edentulous arch. Unilateral subperiosteal implant: Implant located on one side of the posterior mandible or maxilla. Circumferential subperiosteal implant: Implant that bypasses remaining teeth or implants. It is …
Loss or removal of the surface oxide layer of a metal.
Device History Record
Dynamic Hip System (Screw) Dynamic hip screws are a femoral head-sparing orthopedic device used to treat femoral neck fractures. DHS Procedure is done for patients with either a Non-Displaced or Minimally-Displaced Intertrochanteric (between the greater & lesser trochanter) hip fracture.
The human digestive system consists of the gastrointestinal tract and the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion
Digital Light Processing (DLP) is a set of chipsets based on optical micro-electro-mechanical technology that uses a digital micromirror device. It was originally developed in 1987 by Larry Hornbeck of Texas Instruments. DLP technology usually is used in some kind of front projectors. For implantology important is the 3D printing process with DLP. It can …
Deutsche Industrie Norm German term: Voluntary standard, that unifies tangible and intangible matters. Also: DIN EN, DIN EN ISO, Deutsche Norm, DI-Norm. Deutsch: Freiwilliger Standard, in dem materielle und immaterielle Gegenstände vereinheitlicht sind.
double vision Lacking coordination of the two eyes results in two pictures. Can be after trauma, dislocation of the eyes or malfunction of muscles, or neuromuscular. Can be first sign of systemic disease. Can be temporarily e. g. after alcoholic intoxication.
Syn.: Osteodistraction, callus distraction, callotasis. Formation of new bone between vascular bone surfaces created by an osteotomy and separated by gradual and controlled distraction. It is used in orthopedic surgery, podiatric surgery, and oral and maxillofacial surgery. Originally used to treat problems like unequal leg length, it now is used for the treatment of issues …
Descemet Membrane Endothelial Keratoplasty DMEK is a partial-thickness cornea transplant procedure that involves selective removal of the patient’s Descemet membrane and endothelium, followed by transplantation of donor corneal endothelium and Descemet membrane without additional stromal tissue from the donor. The graft tissue is merely 10-15 microns thick. (University of Iowa Health Care)
Degenerative or Primary Mitral Regurgitation
Dorsal Root Ganglion (Therapy)
Distal Radioulnar Joint
Dynamic Trochanteric Sliding System
Direct Vertebral Rotation
Refers to the time of applying force on an implant after initial placement. This term mostly is used in oral surgery/dental implantology. The prosthesis is brought in function earlier than the conventional healing period. Early loading may be applied, if preconditions are good or optimally.
Extracorporal Life Support System
extracorporeal life support
extracorporeal membrane oxygenation Extracorporeal membrane oxygenation (ECMO) or extracorporeal life support (ECLS), is used to support patients with insufficient gas exchange in the lungs. It works by removing the carbon dioxide and oxygenating red blood cells. Generally, it is used either post-cardiopulmonary bypass or in late stage treatment of a person with profound heart and/or …
Dental The part of the axial contour a crown, that extends from the base of the sulcus past the free soft tissue margin. It is important for the esthetic outcome of an implant worn crown in the frontal area.
Envista is a global family of three operating companies and more than 30 trusted dental brands. Envista separated from Danaher as an independent entity in 2019. Implant companies are: Alpha BioTEC Simplantology Implant Direct™ Nobel Biocare™
Embolic Protection System
Expanded polytetrafluoroethylene Expanded PTFE is stretched to allow fluid passage but not cells, used as a nonresorbable membrane in guided bone regeneration (GBR) and guided tissue regeneration (GTR). It is used with or without titanium reinforcement to maintain its shape. see: Polytetrafluorethylene
Of or relating to a horse or horses.
End-Stage Renal Disease
European Union Medical Devices Regulation
CE marking is a certification mark that indicates conformity with health, safety, and environmental protection standards for products sold within the European Union. The CE marking is the manufacturer’s declaration that the product meets EU standards for health, safety, and environmental protection.
Endovascular Aneurysm Repair
Removing an implant.
Dental One kind of a connection interface of the platform of a dental two-piece implant extending coronally. It prevents rotation of attached components and is used when.
The percentage of failures in a study or clinical trial, of a procedure or a device (e. g. implant), which do not meet the success criteria or fall into the failure criteria, defined in the study protocol.
Progressive weakening of a structure by accumulating embrittlement and crack formation/propagation.
A structural failure caused by multiple loading episodes when all loads lie below the structure´s ultimate strength.
The Food and Drug Administration (FDA or USFDA) is a federal agency of the United States Department of Health and Human Services in the USA. The FDA is responsible for protecting and promoting public health through the control and supervision of food safety, tobacco products, dietary supplements, prescription and over-the-counter pharmaceutical drugs (medications), vaccines, biopharmaceuticals, …
Freeze-dried bone allograft Bone harvested from donor cadavers, washed, immersed in ethanol, frozen in nitrogen, freeze-dried and ground to similar particles ranging from 250 to 750μm. It acts primarily through an osteoconductive process, as inductive proteins, often found in only minute quantities, are only released after the resorption of the mineral.
free from infection
A numerical method for solving problems of engineering and mathematical physics. Software technique used to study stresses and strains on mechanical parts or components. Virtual prototyping software, often a component of CAD software programs, automatically generates the simulated mechanical loads for FEA The finite element method formulation of the problem results in a system of …
Dental A restoration that is not removable by the patient. The restoration may be partial arch (FPD: Fixed partial denture), or complete arch (FCD: Fixed complete denture.
Dental Prosthesis fixed to an implant or implants, only removable by the dentists.
Fluoroplastics stands for a group of plastics where the molecules contain carbon and fluorine. Fluoroplastics tend to have special properties:- Very high working temperatures. Non-stick characteristics. Very high resistance to chemical and solvents. Very high electrical resistance. The more common members of the fluoroplastics family, with which we work, are:- PTFE (PolyTetraFluoroEthylene) PTFE is the …
Functional Mitral Regurgitation
english español français Welche Fragen sollten Sie Ihrem Chirurgen zu einer Brustvergrößerung stellen? Diese Liste soll Ihnen helfen, keine Fragen zu vergessen, die Sie im Zusammenhang mit einer geplanten Brustvergrößerung haben. Vielleicht treffen nicht alle Fragen zu oder Sie haben zusätzliche Fragen. 1. Welche Risiken und Komplikationen sind mit Brustimplantaten verbunden? …
english español français Welche Fragen sollten Sie Ihrem Zahnarzt zu Zahnimplantaten stellen? Diese Liste von Fragen kann Ihnen helfen, sich an Themen zu erinnern, die Sie mit Ihrem Zahnarzt besprechen sollten. Es ist möglich, dass nicht alle Fragen zutreffen oder weitere Fragen hilfreich sind. 1. Welche Risiken und Komplikationen sind mit …
Fused Deposition Modeling (FDM) is a 3D printing process that uses production-grade thermoplastic material to produce prototypes and production parts. Completed parts are robust, paintable and can be sealed to be impervious to fluids. During the build process, melted plastic is deposited layer by layer to create a two-dimensional cross section of the model. This …
Gesellschaft bürgerlichen Rechts
Material or tissue used for implantation or transplantation.
Delivery to an implant surface of high velocity stream of abrasive particles propelled by compressed air, designed to increase surface area.
Any highly specific protein that stimulates the division and differentiation of particular types of cells.
GBR is the reformation of bone. This may be induced within a bony structure by a packing material or in excess on the surface of a bony structure by tissue augmentation. A dental surgical procedure using barrier membranes to direct the growth of new bone at sites with insufficient volumes or dimensions of bone, usually …
The method of hot isostatic postcompaction is used today as a standard for improving characteristics relevant to fracture mechanics in ceramic implants. HIPing reduces porosity, increases density and purity, and thus leads to a relevant increase in long-term life expectancy and a decrease in the tendency to sub-critical crack growth. (Wolfhart Rieger, Stefan Köbel, Wolfram …
Syn.: Healing by primary intention, primary closure. Healing of a wound in which the edges are closely re-approximated. Union or restoration of continuity occurs directly with minimal granulation tissue and scar formation.
Syn.: Healing by secondary intention, secondary closure. Healing of a wound in which a gap is left between its edges. Union or restoration occurs by granulation tissue formation from the base and sides. This requires a large amount of epithelial migration, collagen deposition, contraction, and remodeling during healing. It may result in a scar or …
Mechanical heart valves and tissue heart valves are used as implants. anatomy The heart has two chambers, each having two valves. The two atrioventricular valves (AV) are called mitral valve (bicuspid valve) and tricuspid valve. The two semilunar valves are called aortic valve and pulmonary valve. types There are two basic types of valves: Mechanical …
A mass of blood (usually clotted) confined to a space and caused by a break in a blood vessel.
Thrombocytes stop bleeding. They aggregate at the contact with collagen and the proteins from the implant surface and close the ruptured vessels. Thrombocytes release messengers, to support crosslinking (thromboxan), to fibroblast building with PDGF(platelet derived growth factor). Fibrin monomers crosslink. Adsorption of an implant materials iones and blood proteines (albumines, fibrinogen, fibronektin).
A hernia is the abnormal exit of tissue or an organ, such as the bowel, through the wall of the cavity in which it normally resides. Hernias come in some types. Most commonly they involve the abdomen, specifically the groin.
also: Kassebaum-Kennedy Act An Act To amend the Internal Revenue Code of 1986 to improve portability and continuity of health insurance coverage in the group and individual markets, to combat waste, fraud, and abuse in health insurance and health care delivery, to promote the use of medical savings accounts, to improve access to long-term care …
A dental root-form implant with an internal channel penetrating the implant body from/at its apical aspect.
The local or systemic response of the host organism to an implanted material or device.
HU A unit of y-ray attenuation used for CT-scans as a measurement of bone density. Each pixel is assigned a value on a scale on which air is -1000, water 0, and compact bone +1000. In dentistry exists a proposal to use bone density as a determinant for clinical success (Misch CE, Contemporary Implant Dentistry, …
Choosing a Surgeon you should ask the following questions. 1. How many implantation procedures of the planned kind does he/she perform per year? 2. How many years has he/she performed implantation procedures? 3. Is he/she board certified for that surgical procedure, and if so, with which board? 4. What is the most common complication he/she …
Human pluripotent stem cells
see: Hounsfield Units
Dental An endosseous, root-form implant, with different surface textures at different levels.
also Hydroxylapatite, HA, CaHA, Apatite CaOH physical Naturally occurring mineral form of calcium apatite. Pure hydroxylapatite (HA) powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations. chemical Ca5(PO4)3(OH) occurrence Carbonated calcium-deficient HA is the main mineral of which dental enamel and dentin are composed. HA crystals are also found …
Enlarged scar that remains after a wound heals.
= interbody (in spine)
Interbody Fusion Device (in spine)
Implantable Loop Recorder The ILR monitors the electrical activity of the heart.
Dental A clinical protocol for the placement and application of force on dental implants, with a fixed or removable restoration in occlusal contact with the opposing dentition, at the same clinical visit. Syn.: Immediate occlusal loading
Dental A clinical protocol for the placement of dental implants in a partially edentulous arch, with a fixed or removable restoration not in occlusal contact with the opposing dentition, at the same clinical visit.
An implanted insulin pump is a pump which remains inside the body at all times. An implanted insulin pump is able to deliver insulin into the peritoneal cavity which has a rich supply of blood vessels and can therefore absorb insulin very efficiently. Users of implanted insulin pumps have reported an improved sense of well …
Outside of the living organism or natural system. Usually refers to artificial experimental systems such as cultures or cell-free extras.
Within the living organism or natural system.
Intraocular Lens IOL for upcoming cataract surgery have three choices. Traditional IOL This type of lens offers clear vision at one distance only. It is also known as a standard monofocal lens. Toric IOL This IOL corrects astigmatism, or an irregularly shaped cornea. Trifocal, Multifocal and Accommodating IOLs These IOLs assist with near, far …
Intrathoracic Pressure Regulation
International Organization of Standardization ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be …
A transplant between twins.
Surface texture of an implant that are randomly distributed, so the surface is identical in all directions.