M'mano amakono a digito,ma intraoral mano a X-ray sensorszakhala zofunika kwambiri pakuzindikira matenda, kukonzekera chithandizo, komanso kulankhulana ndi odwala. Kaya kudziwa ma caries oyambilira, kuyeza machiritso a mizu, kapena kuwunika momwe mafupa alili, mawonekedwe azithunzi amakhudza mwachindunji kulondola kwachipatala.

Akatswiri ambiri a mano amafunsa mafunso omwewo:

• Kodi sensa ya mano imagwira ntchito bwanji?
• Kodi pali kusiyana kotani pakati pa masensa a CCD ndi CMOS?
• Kodi sensa ya mano iyenera kukhala nthawi yayitali bwanji?
• Kodi ndi nthawi yanji yoti musinthe kachipangizo kokalamba?

Nkhaniyi ikufotokoza mfundo yogwira ntchito ya masensa a mano, ikufanizira maukadaulo a CCD ndi CMOS, ndipo imapereka malangizo othandiza pa moyo wa sensor komanso kusintha.

Kodi Sensor ya Mano ya X-ray Imagwira Ntchito Motani?

Ngakhale ukadaulo wosiyanasiyana wa sensor ulipo, pafupifupi onsemasiku ano intraoral masensa a manotsatirani njira yofananira yofananira.

Khwerero 1. Ma X-ray Amadutsa Dzino

Akamuyeza, mtengo wa X-ray umalowa m'mano a wodwalayo ndi fupa lozungulira. Minofu yosiyanasiyana imayamwa ma radiation osiyanasiyana, ndikupanga ma X-ray osiyanasiyana.

Gawo 2. The Scintillator Atembenuza ma X-ray kukhala Kuwala Kowoneka

Woyamba wosanjikiza mkati mwa sensa ndiscintillator (fulorosenti wosanjikiza).

Ntchito yake ndikusintha ma X-ray osawoneka kukhala kuwala kowoneka komwe chipangizo chojambula chimatha kuzindikira.

Chosanjikiza ichi ndi chimodzi mwazinthu zofunika kwambiri pa sensa yonse chifukwa chimatsimikizira kuwala kwa chithunzi, kuthwanima, ndi kusiyana.

Gawo 3. Chip Imaging CMOS Imagwira Kuwala

Kuwala kowoneka kumafikira mamiliyoni a ma pixel ang'onoang'ono pa chipangizo chojambula cha CMOS.

Pixel iliyonse imasintha kuwala kukhala magetsi.

Gawo 4. Digital Processing Imapanga Chithunzicho

Zizindikiro zamagetsi zimasinthidwa pakompyuta ndikusamutsidwa ku pulogalamu yojambula.

Pakadutsa masekondi angapo, dokotala amalandira chithunzi chamtundu wotuwa chomwe chimatha kuwulula:

• Matenda a mano
• Matenda a Periapical
• Muzu ngalande anatomy
• Kuwonongeka kwa mafupa a periodontal
• Mapangidwe a mafupa a trabecular
• Mano okhudzidwa

CCD vs CMOS: Kusiyana kwake ndi Chiyani?

Zaka zapitazo, masensa a mano amagwiritsidwa ntchito makamakaCCD (Charge-Coupled Chipangizo)kapenaCMOS (Complementary Metal-Oxide Semiconductor)luso.

Chochititsa chidwi,matekinoloje onse amapanga zithunzi pogwiritsa ntchito njira yeniyeni yosinthira X-ray. Kusiyana kwakukulu kokha ndikomomwe ndalama zamagetsi zimawerengedwa kuchokera ku sensa.

Chifukwa Chiyani CMOS Yakhala Muyeso Wamakampani?

Zaka makumi awiri zapitazo, CCD idapereka chithunzi chapamwamba kwambiri.

Komabe, zikuwonjezekaukadaulo wa backside-illuminated (BSI) CMOSachita bwino kwambiri.

Masensa amasiku ano a CMOS amapereka:

• Liwiro lapamwamba la kujambula
• Kugwiritsa ntchito mphamvu zochepa
• Kusasinthika kopanga bwino
• Kuchepetsa ndalama zopangira
• Ubwino wazithunzi
• Kukhazikika kwakukulu

Zotsatira zake,pafupifupi masensa onse amakono a intraoral akugwiritsa ntchito ukadaulo wa CMOS.

Ukadaulo wa CCD umakhalabe m'kafukufuku wapadera wasayansi ndi machitidwe ena apamwamba kwambiri azojambula zamakampani.

Kodi Chimatsimikizira Moyo Wotani wa Sensor ya Mano?

Anthu ambiri amaganiza kuti chipangizo cha CMOS pamapeto pake chimatha.

Zowona,Chip chojambula sichikhala chinthu choyamba kulephera.

The Scintillator Imatsimikizira Moyo wa Sensor

Thescintillator wosanjikizaali ndi udindo pafupifupi80% ya kuwonongeka kwazithunzi kwanthawi yayitali.

Kwa zaka zambiri zogwiritsidwa ntchito tsiku ndi tsiku, zinthu zingapo zimachepetsa ntchito yake.

1. Kuwonekera mosalekeza kwa X-ray

Kuwonekera mobwerezabwereza kwa X-ray kumakalamba pang'onopang'ono zinthu za phosphor.

Pamene kusintha kwa kuwala kukucheperachepera, zithunzi zimakhala:

• Zowala pang'ono
• M'munsi mosiyana
• Zovuta kutanthauzira

2. Chemical Disinfection

Kuyeretsa nthawi zonse ndi kupha tizilombo toyambitsa matenda kumatha kukhudza pang'onopang'ono chitetezo cha sensa.

Pakapita nthawi, mankhwala ophera tizilombo amatha kuyambitsa:

• Kutsika kwa mitambo
• Chifunga chazithunzi
• Mawanga amdima osatha

Chitetezo choyenera chotchinga ndi njira zoyeretsera zopangidwa ndi wopanga zingathandize kuchepetsa ngoziyi.

3. Kupsinjika Kwamakina

Masensa am'mano amakumana ndi kupsinjika kwakukulu pakugwiritsa ntchito tsiku ndi tsiku.

Kuthamanga kobwerezabwereza, kutsika mwangozi, kapena kukhudzidwa kungathe kuwononga scintillator wosanjikiza, zomwe zimayambitsa:

• Zithunzi zokhazikika
• Madera akufa
• Zizindikiro zakuda zokhazikika

Kodi CMOS Chip Yatha?

Pazochitika zachipatala,Tchipisi za CMOS ndizokhazikika kwambiri.

Zida zamagetsi zimatha kugwira ntchitoZaka 8-10 kapena kuposerapoasanakumane ndi kuwonongeka kwamagetsi kowonekera.

Nthawi zambiri, mawonekedwe azithunzi amachepabwino chip chisanafike mapeto a moyo wake, makamaka chifukwa scintillator wosanjikiza amawonongeka poyamba.

Chiyembekezero cha Moyo Wautali mu Njira Yachizolowezi Yamano

Kwa chipatala chachikulu cha mano kutenga pafupifupi10-20 radiographs patsiku, khalidwe lachithunzi nthawi zambiri limatsatira chitsanzo ichi:

Zaka 1-5

• Khalidwe lachithunzi chokhazikika
• Kusiyanitsa kwabwino kwambiri
• Palibe kuwonjezeka kowonekera kwa ma radiation
• Kugwira ntchito kosasinthasintha

Zaka 5-7

Kuwonongeka kwapang'onopang'ono kwazithunzi kumayamba.

Achipatala akhoza kuwona:

• Chifunga chaching'ono chazithunzi
• Kuwonjezeka kwaphokoso lazithunzi
• Kuchepetsa chakuthwa
• Kuwonjezeka kwakung'ono kwa mawonekedwe owonekera kuti mukhalebe ndi chithunzi chabwino

Pambuyo pa Zaka 7

Kuwonongeka kwa zithunzi kumakhala kofunika kwambiri.

Mavuto omwe amapezeka kawirikawiri ndi awa:

• Okhazikika mawanga akuda
• Mizere yoyima kapena yopingasa
• Kuchepetsa kukhudzika kwanuko
• Kusawoneka bwino kwa mizu yabwino ya anatomy
• Kuvuta kuzindikira zilonda zazing'ono za carious

Kwa machitidwe ambiri,m'malo mozungulira zaka zisanu ndi ziwiri amaonedwa kuti n'koyenera.

Kutalika kwa Moyo M'makliniki Apamwamba

Zochita zazikulu monga:

• Orthodontic centers
• Zipatala zamapampando ambiri
• Zochita zamagulu akuluakulu

nthawi zambiri gwira30-60 radiographs patsiku.

Chifukwa scintillator imalandira mawonekedwe ochulukirapo ochulukirapo, kuwonongeka kwazithunzi kumachitika posachedwa.

Zoyembekeza zenizeni ndi izi:

• Kuwoneka bwino kumatsika pakadutsa pafupifupi3.5-5 zaka
• Kusintha kovomerezeka mkati5-6 zaka

Theoretical Image Count vs Practical Service Life

Opanga nthawi zambiri amayerekeza masensa a mano pafupifupi100,000 zowonetserapamikhalidwe yabwino yogwirira ntchito.

Kutengera kugwiritsa ntchito tsiku ndi tsiku:

Komabe, opanga zida zamankhwala nthawi zambiri amatchula akapangidwe moyo utumiki wa pafupifupi 7 zaka, ndi zenera zothandiza m'malo pakati5 ndi 8 zaka, kutengera kuchuluka kwa ntchito ndi kukonza.

Ubwino wa chithunzi chachipatala—osati kuwerengera kokha—uyenera kutsogolera zosankha zina.

Zizindikiro Zoti Sensor Yanu Yamano Iyenera Kusinthidwa

Masensa okalamba nthawi zambiri amawonetsa zizindikiro zozindikirika.

Lingalirani kusintha sensor ngati muwona:

• Zithunzi zikuchulukirachulukira pansi pa mawonekedwe omwewo
• Kusawoneka bwino komanso kusawoneka bwino kwa mafupa a trabecular
• Malo amdima osatha kapena madera a mitambo
• Mizere yoyima kapena yopingasa yomwe kuyimitsa sikungachotse
• Kuchulukitsa kuwonekera kwa ma radiation kumafunika kuti tipeze zithunzi zovomerezeka
• Phokoso lambiri m'machitidwe oyerekeza a mlingo wochepa
• Kuvuta kuwona bwino za ngalande za mizu kapena ma caries oyambirira

Izi zikapitilira, kugwiritsa ntchito nthawi zonse kumatha kusokoneza chidaliro cha matenda.

Njira Zabwino Zokulitsira Moyo wa Sensor

Ngakhale kuti palibe sensa yomwe imakhalapo kwamuyaya, chisamaliro choyenera chingathe kuwonjezera moyo wake wautumiki.

Machitidwe omwe akulimbikitsidwa ndi awa:

• Gwiritsani ntchito zotchinga zotetezedwa kwa wodwala aliyense.
• Tsatirani njira zovomerezeka ndi wopanga mankhwala ophera tizilombo.
• Pewani kupindika kwambiri kapena kupindika kwa chingwe cha sensor.
• Pewani odwala kuti asalume mwachindunji m'mphepete mwa sensa ngati kuli kotheka.
• Sungani sensor mu chotengera choteteza pamene sichikugwiritsidwa ntchito.
• Gwirani sensa mosamala kuti muchepetse kugwa kapena kukhudzidwa mwangozi.

Momwe Mungasinthire Nthawi Yanthawi

Dongosolo ili limapereka chidziwitso chothandiza kuzipatala zambiri:

Kuwunika kokhazikika kwa chithunzi kuyenera kutsagana ndi malangizowa.

Malingaliro Omaliza

ZamakonoMasensa a mano a CMOSperekani chithunzithunzi chapamwamba, kudalirika, komanso kuchita bwino, kuwapanga kukhala chisankho chokhazikika pamachitidwe amakono a mano. Ngakhale chip CMOS chokhacho chimapangidwira kuti chizigwira ntchito kwa nthawi yayitali, mascintillator wosanjikiza nthawi zambiri ndi gawo loyamba la ukalamba, pang'onopang'ono kuchepetsa kumveka kwa chithunzi pambuyo pa zaka zambiri zogwiritsidwa ntchito kuchipatala.

Kwa zipatala zambiri zamano, m'malo mwa intraoral sensor pambuyo pakepafupifupi zaka zisanu ndi ziwirizimathandiza kusunga kulondola kwa matenda. Zochita zapamwamba zimatha kupindula ndikusintha pambuyo pakezaka zisanu mpaka zisanu ndi chimodzi, kutengera kuchuluka kwa ntchito tsiku ndi tsiku komanso mtundu wazithunzi.

Pomvetsetsa momwe masensa am'mano amagwirira ntchito ndikuwunika zizindikiro za kuwonongeka kwa zithunzi, zipatala zimatha kuwonetsetsa kuti zidziwitso zikuyenda bwino ndikukhathamiritsa chitetezo cha odwala komanso kugwiritsa ntchito bwino kuchipatala.