Computer-aided design/computer-aided manufacturing Process for direct preparation of an object from computer-acquired or computer-generated data

Calcium carbonate

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

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 …

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Calcium Sulfate

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, …

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The tissue that forms between and around fractured bone segments to maintain structural integrity and facilitate bone regeneration.

Calvarial graft

Bone graft harvested from the superior portion of the cranium. It is most frequently taken from the parietal region, generally on the right side (nondominant hemisphere) behind the coronal suture and approximately 3 cm lateral to the sagittal suture.

Capsule (contour implants)

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 …

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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 …

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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 …

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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 …

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China Food and Drug Association State Administration for Market Regulation


colony forming unit (stem cells)

Chin graft

A bone harvested from the facial aspect of the symphyseal area of the mandible, between the mental foramina, apical to roots of teeth.

Chip Implant

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 …

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= Critical Incident Technique see also CIRS

Clean Implant

CleanImplant checks  the quality of dental implants by the purity of the implant surfaces.


Carpometacarpal Joint


A substance applied to an implants surface.


Cyclic Olefin Copolymer

cochlear implant

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.

Cohort study

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.

Compter-aided navigation

Surgical placement of implants using a computer guided system based on information generated from a high resolution computed tomography.

conical connection

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:  

connective tissue

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

Crestal implant placement

Dental The placement of a dental implant with the edge of the platform at the crest of the alveolar process. Subcrestal implant placement (the edge of the implant apical to the crest) Supracrestal implant placement (the edge of the implant coronal to the crest)

Cross-sectional study

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 …

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Cardiac resynchronization therapy defibrillators

cruciate retaining

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 …

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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 …

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Custom abutment

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.

Cylinder implant

Dental An endosseous root-form press-fit implant, with parallel-sided walls.

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