Ngokukhula kwedijithali kudokotela wamazinyo, izikena ze-intraoral kanye nokuvela kwedijithali kuye kwamukelwa kabanzi odokotela abaningi. Izikena ze-Intraoral zisetshenziselwa ukuthwebula ukubonakala okuqondile kwamazinyo eziguli. Benza umthombo wokukhanya ku-arch yamazinyo futhi izithombe zizothathwa izinzwa zesithombe ezicutshungulwa isofthiwe yokuskena, ekhiqiza amafu ephoyinti. Lawa mafu wephoyinti abe esecutshungulwa futhi adale imodeli yendawo ye-3D. Umkhuba wokwanda kokusetshenziswa kwezikena ze-intraoral ohlelweni lwansuku zonke lodokotela bamazinyo uholele esidingweni sokuhlola kahle ikhwalithi yedatha yemibono yedijithali ye-intraoral.
Kodwa-ke, ukulinganisa ikhwalithi yemodeli ye-3D surface akulula njengokuyibheka nje, ngoba ngezinye izikhathi imodeli ebukeka kahle ayilingani nekhwalithi enhle yedatha yokuskena. Ingase ihlanekezelwe phakathi nenqubo bese ikhompuyutha ibe bushelelezi yonke into, okukwenza uzizwe sengathi uthwebule yonke into, kodwa iqiniso liwukuthi ulahlekelwa imininingwane ethile ebalulekile ezogcina isesimweni sokubuyiselwa ngendlela engafanele. Ibhulogi eyokukufundisa ukuthi ungahlola kanjani ikhwalithi yedatha yemibono yedijithali ezicini eziyisisekelo.
Ukunemba Kwedatha
Ayikho into ebaluleke ukwedlula ukunemba, isithwebuli se-intraoral kufanele siqale sibe nekhono lokudala umbono onembile wedijithali. Kudingeka sazi ukuthi ukunemba kuyingqikithi yeqiniso nokunemba. Iqiniso lichazwa 'njengokusondela kwesivumelwano phakathi kokulindela umphumela wokuhlolwa noma umphumela wokulinganisa kanye nenani langempela'. Ukunemba kuchazwa 'njengokusondelana kwesivumelwano phakathi kwezinkomba noma amanani yenani elilinganisiwe atholwe ngokuphindaphinda izilinganiso ezintweni ezifanayo ngaphansi kwemibandela ethile'. Kalula nje, iqiniso yikhono lesilinganiso ukuze lifane nenani langempela lenani elilinganiswayo. Ukunemba yikhono lesilinganiso okufanele liphindwe njalo.
Isikena se-intraoral kufanele sibe neqiniso eliphezulu futhi lokho kusho ukuthi kufanele sikwazi ukufanisa okungokoqobo ngokuseduze ngangokunokwenzeka: imodeli ye-3D ebonakalayo ethwetshulwe yisithwebuli kufanele ifane nemodeli yangempela ngokuseduze ngangokunokwenzeka, ngokuchezuka okuncane kokungokoqobo. Ngokuvamile, indlela yokuhlola ubuqiniso be-IOS iwukuba idlule izikena zayo ngesikena esiyireferensi esitholwe ngomshini wezimboni onamandla. Ngemva kokugqagqana kwalawa mamodeli, isofthiwe enamandla ye-reverse-engineering ingasetshenziswa ukukhiqiza amamephu we-colorimetric abonisa umehluko phakathi kwezindawo ze-IOS kanye nemodeli yesithenjwa kuleveli ye-micron. Ukuze ubale ukunemba, ngokumane ugqagqene amamodeli ahlukene athathwe ngesikena se-intraoral esifanayo ngezikhathi ezihlukene futhi uphinde uhlole umehluko kuleveli ye-micron.
Kule grafu, ungakwazi ukubona idatha yokunemba yombono, onemibala ehlukene emele ukuchezuka kumodeli yangempela.
Kubalulekile ukuqaphela ukuthi i-IOS ingaba neqiniso eliphezulu kodwa ukunemba okuphansi, noma okuphambene nalokho. Kuzo zombili izimo, ukubonakala kwedijithali akugculisi ngoba kungathinta ukunemba okuphelele ngaleyo ndlela kuzoba nomthelela omubi emsebenzini wokufakelwa kadokotela wamazinyo.
Ngokubuyiselwa kwesikhashana esifushane (okufana nokubuyiselwa kwezinyo elilodwa noma izitho zokufakelwa ezingashintshiwe), singase singabi nandaba nephutha le-micron eyodwa ngoba alibalulekile ngokomtholampilo. Kodwa-ke, uma kuziwa ekubuyiselweni kwesikhathi eside, kuzoqongelela lawa maphutha angasho lutho ngokomtholampilo kaninginingi, ngakho-ke ngesikhathi esithile inani eliphelele lamaphutha obulokhu uqoqa lingase libe likhulu ngokomtholampilo.
Ngokufanelekile, ukukhetha isithwebuli sokunemba okuphezulu kuyisinqumo esinconyiwe, kodwa ngokuvamile siza nenani eliphezulu. Kufanele ukhethe isithwebuli esisuselwe kubhajethi yakho kanye nesidingo sakho, inqobo nje uma isithwebuli singaphakathi kokunemba okwamukelekayo ngokomtholampilo.
Ubukhali Bedatha
Ngaphandle kwedatha yokuhlola evela ku-ejensi yokuhlola ephrofeshinali/inkampani yangaphandle ethenjwayo, noma ulwazi lwakho lomuntu siqu ngesikena sangaphakathi kwangaphakathi, awukwazi ukusho ukuthi ingabe idatha inembile ngokuvela kwedijithali kuphela. Ake sibheke izici zekhwalithi yedatha ongazibona.
1. Ubukhali bemajini ye-Gingival
Uma uthola idatha yedijithali evela ku-IOS futhi uyithumele kusofthiwe yesithombe ye-3D ukuze ubuke, into yokuqala ongayenza ukwahlulela ukucija kwemajini ye-gingival. I-margin line iyiphuzu elibalulekile lochwepheshe bamazinyo ukwenza amazinyo okufakelwa. Isithombe esihle sedijithali kufanele sibe nomugqa wemajini ocacile ukuze ukubuyisela kwenziwe ngokunembile. Uma umugqa wemajini ungacacile, ekugcineni uzothinta ubuqiniso bemibono yedijithali kanye nekhwalithi yokubuyisela kokugcina futhi kuholele ekwehlulekeni okufanele.
2. Ukuhlanekezela
Udinga ukubhekisisa idatha ukuze ubone ukuthi ingabe ihlanekezelwe ngokusobala noma inezimbobo ezingenalutho, ezingabangelwa ukubonakaliswa okuvela oketshezini, njengamathe. Lokhu kungenxa yokuthi i-IOS ayikwazi ukuhlukanisa phakathi kwalolo hlobo lokubonisa kanye naso sonke isithombe esithwebulayo. Khumbula ukumisa indawo, futhi idatha esontekile/elahlekile idinga ukuskenwa kabusha. Uma isu lokuskena lomsebenzisi lilungile futhi kungekho ukuphikiswa kolunye uketshezi futhi ukuhlanekezela kwenzeka njalo, lapho-ke isikena esingaphakathi emlonyeni asithembekile futhi asifanele ukusetshenziswa emtholampilo.
3. Imininingwane ye-occlusal surface
Vele ubheke izindawo ezifihlekile esithombeni, idatha yekhwalithi enhle yokuvela kwedijithali izobonisa imigodi enemininingwane kanye nemifantu.
Umbala Wedatha
Ubuqiniso bombala nokuxazululwa kwedatha yokutholwa nakho kubalulekile, nokho, kuncike kumakhamera angaphakathi kwesikena kanye nesoftware. Ikhamera enamandla nesofthiwe ingakwazi ukukhiqiza imodeli ye-3D enengqondo yokucaca okuphezulu futhi lokhu kungaba ithuluzi elinamandla lokumaketha lokuzijwayeza kwakho, njengoba iziguli zingathanda ukubona imodeli yazo yamazinyo engokoqobo njengento yangempela ngangokunokwenzeka. Ngakho lapho uqeda ukuskena, uqhathanisa idatha namazinyo okuqala esiguli, isithombe esiseduze nombala wamazinyo angempela singeseqophelo eliphezulu.
Thola okwengeziwe mayelana ne-Launca DL-206 intraoral scanner: https://www.launcadental.com/intraoral-scanner
Isikhathi sokuthumela: Nov-30-2021
