CAD CAM I

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1. Lava C.O.S. camera capability

1. intra oral digitizer/E4D 2. no powder coating required 3. Can be used to scan single tooth, quadrant or full arch.

1. is configured as an optical coherence tomography It uses blue laser 2. is powder required 3. can be used for what?

1.3OX , STL file 2. STL,3OX, STL 3. STL

1.Scanner: Different file format production by the scanner. For example TRIOS scanner produces ___file format, PlanScan can produce ___format. 2. CAD Unit: Accepting different file format for design purposes. For example 3shape design software accepts ____ file formats, PlanDesign accepts___ file format 3. CAM Unit: Accepting different file format. For example PlanMill accepts____file format. In order

1. Lava C.O.S. camera Newer version of this product "True Definition Scanner" 2. powder. uses blue light

1.contains a highly complex optical system comprised of 22 lens systems and 192 blue LED cells. The smallest scanner head The only scanner that uses video capture instead of taking taking picture and stitching them together. 2. is powder required

1.iTero system 2. no coating, but requires addition of a color wheel to the acquisition unit itself resulting in a camera with a larger scanner head. laser beam light

1.employs a parallel confocal imaging technique. laser light beams is used 2. is there coating?

1.Triangulation 2.Passive Triangulation: 3. Active Triangulation:

1.is another type of non-contact technique for digitally collecting data of the shape of a 3D object and constructing digital 3D models: 2. no kind of radiation is emitted by the scanning device itself and the system is based on detecting reflected ambient radiation. 2.a light radiation is projected onto the scene, and its reflection is acquired in order to calculate the position of the target object

1. TRIOS 2. does not need coating powders. can scan in black or white, or natural color. 3. makes 30X file (open but need to convert)

1.system works according to the principle of confocal microscopy with a fast scanning time. The scanner uses blue light to provide 3D surface registration. 2. does it need powders? 3. makes what file

occlusion (blind spot) ;

A major problem affecting all triangulation methods is ____it takes place whenever an area of the target surface is invisible to both, or either of, the laser and the camera.

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CEREC Bluecoat capability

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CEREC Omnicam capability

CEREC Omnicam

Continuos color images are taken No powder coating required. Can be used to scan single tooth, quadrant or full arch.

▪ Confocal imaging:

ID

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Intra Oral Digitizer/ E4D by D4D Technologies LLC capabilities

CEREC milling unit.

It has CLOSE platform, meaning that STL file cannot be sent to any milling unit but ___

Advantage: precise but less accurate than newer optical scanning system Disadvantage: long time to scan, Expensive

Mechanical Scanner advantage and disadvantage

1. CEREC

Non-contact (Optical) Scanner 1. Triangulation:

1.LAVA C.O.S

Non-contact (Optical) Scanner 1.Active Wavefront Sampling:

1. itero, Trios

Non-contact (Optical) Scanner 1.Confocal Imaging :

1.E4D (Planmeca/E4D)

Non-contact (Optical) Scanner 1.Optical Coherence Tomography:

1. dry milling 2. wet milling

Subtractive Technique(According to milling environment:) 1. It is done for pre-sintered zirconia to avoid moisture absorption 2. It is done for metals, composite, silica based ceramics

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TRIOS capability

Scanner= Digitizer

Triad of Fabrication Fabrication of a restoration using Computer Aided Design/ Computer Aided Manufacturing (CAD/ CAM) system has three functional components: 1.Data acquisition

CAD Unit= Software

Triad of Fabrication Fabrication of a restoration using Computer Aided Design/ Computer Aided Manufacturing (CAD/ CAM) system has three functional components: 1.Restoration design

CAM Unit=Production

Triad of Fabrication Fabrication of a restoration using Computer Aided Design/ Computer Aided Manufacturing (CAD/ CAM) system has three functional components: 1.Restoration fabrication

iTero. TRIOS, Intra Oral Digitizer / E4D by D4D? Lava C.O.S. camera

___ has open platform, meaning that STL file can be sent to any milling unit for fabrication of the restoration.

Active Wavefront Sampling (AWS)

is a 3D surface imaging technique, which uses only a single camera and an module. In its simplest form, an THIS is an off-axis aperture which moves on a circular path around the optical axis .This movement produces the rotation of target points on a circle on the image plane.The target points depth information can be derived from the radius of the circular point pattern produced by each point .

STL

is a file format native to the stereolithography CAD software created by 3D Systems. Theese files describe only the surface geometry of a three- dimensional object without any representation of color, texture or other common CAD model attributes.

Confocal Imaging • Either parallel confocal imaging, spot confocal imaging

is a technique for obtaining high-resolution optical images with depth selectivity. pixie by pixel. line by line. laser. brightness of a resulting image pixel corresponds to the relative intensity of decade light

Optical Coherent Tomography

is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue).

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iteros capability

CEREC Bluecam

operate based on active triangulation. A critical aspect of the system is that the triangulation technique requires a uniform reflective surface, and different materials (as dentin, amalgam, resins,gums) reflect light differently.Therefore, it is necessary to coat the teeth with suitable powders, before the scanning stage, to make the reflectivity of the surfaces uniform. Single images are taken and stitch together. Can be used to scan single tooth or quadrant

Scanner

transforms geometry of receptor unit (tooth/ implant) into digital data that can be processed by a computer