Intraoral Scanner Technologies: A Review to Make a Successful Impression

<div>Determining distance to the object. (a) Triangulation: distance BC could be determined according to the formula <svg height="14.3228pt" id="M1" style="vertical-align:-2.2681pt" version="1.1" viewbox="-0.0498162 -12.0547 156.898 14.3228" width="156.898pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M372 352C427 368 507 407 507 502C507 548 486 592 451 616C420 638 376 650 301 650H44V622C124 616 128 610 128 527V123C128 40 122 34 36 28V0H257C336 0 402 12 453 40C512 72 548 124 548 191C548 291 471 335 372 350V352ZM213 362V558C213 591 216 602 226 608C235 614 258 618 282 618C377 618 415 558 415 490C415 406 369 362 260 362H213ZM213 328H258C380 328 450 283 450 181C450 76 377 35 296 34C231 34 213 53 213 125V328Z" id="g121-64"></path></g><g transform="matrix(.013,0,0,-0.013,7.905,0)"><path d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 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(b) Confocal: distance to the object is determined according to the focal distance. (c) AWS requiring a camera and an off-axis that moves on a circular path around the optical axis and produces a rotation of interest points. (d) Stereophotogrammetry is a technology that generates files by algorithm analyzing numerous pictures.</div>

Journal of Healthcare Engineering

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Figure 3

Figure 3: Intraoral Scanner Technologies: A Review to Make a Successful Impression 