Video: Lub hom phiaj ntawm cov ntawv ci txhuas hauv pob ntawv zaj duab xis kho hniav yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
DENTAL FILM Npog thiab ntim khoom.
Cov lub hom phiaj ntawm cov ntawv txhuas thim rov qab yog ua kom lub nqaj nqaim nqaim thiab nqus cov tawg tawg tawg (rov tawg) los ntawm kev tawm tsam zaj duab xis emulsion los ntawm sab nraub qaum ntawm zaj duab xis (sab sab ntawm lub raj), thiab uas yuav ua rau pos huab zaj duab xis.
Thiaj li, thaum siv cov yeeb yaj kiab ib txwm muaj Lub hom phiaj ntawm cov ntawv ci hauv pob ntawv zaj duab xis kho hniav puas yog?
Cov txhuas ntawv ci hauv a pob ntawv zaj duab xis kho hniav tau txiav txim tias muaj ob lub luag haujlwm. Ib qho yog kom txo qis qhov nqus ntawm cov ntaub so ntswg tom qab pob ntawv zaj duab xis , thiab lwm qhov yog txhawm rau tiv thaiv tawg tawg rov qab los ntawm cov ntaub so ntswg kom tswj tau cov duab zoo.
Kuj Paub, qhov twg yog cov ntawv txhuas ua cov ntawv nyias nyias nyob hauv pob ntawv zaj duab xis? txhuas ntawv ci ntawv : ib thooj ntawm txhuas ntawv ci nyob rau hauv pob ntawv zaj duab xis nyob tom qab zaj duab xis qhwv daim ntawv tiv thaiv cov nyias txhuas ntawv ci yog nyob qab ntawm zaj duab xis los tiv thaiv zaj duab xis los ntawm backscatter (theem nrab) hluav taws xob uas ua rau zaj duab xis pos huab.
Tom qab ntawd, lo lus nug yog, cov ntawv ci txhuas yog siv rau kev kho hniav li cas?
Ua cov ntawv ci yog muaj nyob rau hauv kho hniav x-ray zaj duab xis pob ntawv, thiab tiv thaiv kev poob ntawm cov duab nthuav dav los ntawm "backscatter" hluav taws xob, feem ntau yog los ntawm cov ntaub so ntswg tom qab zaj duab xis. Cov khoom muaj coj tsis tuaj yeem muab pov tseg raws li cov khoom pov tseg hauv nroog, thiab yuav tsum tau muab pov tseg pov tseg pov tseg yam phom sij lossis rov ua dua tshiab.
Vim li cas koj thiaj yuav siv lub cim cim cim thaum siv cov duab hluav taws xob?
Koj tus kws kho hniav nug koj yuav tsum siv cov duab hluav taws xob ntawm koj tus neeg mob nyob rau hauv kev txiav txim rau txheeb xyuas qhov chaw nruab nrab ntawm cov pos hniav maxillary tom qab thiab cov hniav mandibular rau kev lwj.
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