Hnub no, kev ua tiav ntawm kev tshawb fawb tau mus deb dhau lawm. Tam sim no nws muaj peev xwm kho tau qhov tsis xws luag hauv lub cev los yog tau txais cov kab mob dentoalveolar. Thiab qhov no tuaj yeem ua tsis tau tsuas yog hauv cov menyuam yaus, tab sis kuj rau cov neeg laus. Cia peb sim xyuas seb qhov clasp prostheses yog dab tsi, peb tseem yuav xav txog cov theem ntawm kev tsim cov qauv zoo li no.
Tshaj tawm txoj hlua khi tes
hom prosthesis no muaj lub zog zoo heev, yog li tus qauv tsim no tau siv dav hauv kev kho hniav:
- Yuav tshem tawm qhov tsis xws ntawm cov hniav thaum kawg ntawm kev kho hniav.
- Rau kev kho mob ntawm cov kab mob ntawm sab laug.
- Raws cov hniav uas tshem tau thaum hloov cov hniav pem hauv ntej.
- Rau prosthetics ntawm cov hniav xoob xoob.
Yog tus kws kho hniav pom zoo kom siv cov hlua khi rau ntawm cov ntawv txuas rau kev kho mob orthopedic, ces qhov tshwm sim yuav dhau txhua qhov koj xav tau. Cov qauv zoo li no tsis yog lub teeb xwb, tab sis kuj saib zoo nkauj, xyaum tsis txawv ntawm cov hniav tiag.
Dab tsi yog lub qawsprosthesis?
Yog tias peb xav txog clasp prostheses (cov txheej txheem tsim khoom yuav tau piav qhia hauv qab), ces lawv sawv cev rau ib qho arc uas muaj peb qhov tseem ceeb:
- Die-cast hlau ncej.
- Gingiva simulation yas puag.
- Cov hniav cuav uas kho ntawm lub hauv paus.
Yuav ua kom nws tuaj yeem txhim kho cov khoom zoo li no, koj yuav tsum muaj tsawg kawg yog ob peb ntawm koj tus kheej cov hniav, ces tus qauv tuaj yeem ruaj ntseg ruaj.
Ntau yam ntawm clasp prostheses
Txhawm rau txiav txim siab txog qib kev sim ntawm kev tsim cov pob txha caj dab, koj yuav tsum paub tias hom kev tsim no yog dab tsi. Lawv feem ntau muab faib raws li txoj kev txuas rau hauv qhov ncauj kab noj hniav.
- Xauv prosthesis ntawm cov ntawv txuas. Nws yog ruaj ruaj ntawm cov hniav abutment nrog kev pab los ntawm ib tug yas thiab tshwj xeeb micro-locks, uas yog kiag li tsis pom, vim hais tias lawv yog mounted ncaj qha rau hauv lub prosthesis. Qhov no yog qhov kev xaiv zoo tshaj plaws thaum koj xav tau rov qab kho cov hniav nrog qhov poob ntawm ntau cov hniav. Peb yuav piav qhia txog cov theem ntawm kev tsim cov khoom siv tes tsho ntawm cov ntawv txuas hauv qab no.
- Klawm. Lub prosthesis muaj ib tug clasp fastening thiab tusyees faib lub load ntawm lub puab tsaig. Nws yooj yim siv vim nws yooj yim rub tawm thiab muab rov qab rau hauv qhov chaw.
- Telescopic. Prostheses ntawm telescopic crowns yog kim tshaj plaws. Kev ua haujlwm ntawm lawv qhov chaw tsim khoom yuav tsum muaj kev ua haujlwm siab thiab kev saib xyuas. Lub ntsiab tseem ceeb ntawm lub prosthesis yog lub hauv paus zoo li lub khob hliav qab thiab lub kaus hniav nrogkab noj hniav nyob rau hauv, hom phiaj rov ua cov duab ntawm lub hauv paus. Lub hauv paus ntawm tus qauv muab tso rau tuaj yeem yog tus hniav tig los yog ntsia hlau ntsia. Qhov kev tsim no muab qhov ruaj khov thiab ruaj ntseg haum.
Cov theem ntawm kev ua ib lub clasp prosthesis ntawm clasps yog tsawg zog. Lawv yooj yim dua ua thiab txuas nrog me me tab sis muaj zog hooks rau cov hniav uas twb muaj lawm. Tab sis qhov tsis zoo ntawm qhov kev tsim no yog tias thaum luag nyav lossis hais lus, cov hooks tuaj yeem pom tau. Prostheses ntawm attachments saib ntau aesthetically pleasing. Cov no yog cov xauv me me, tab sis lawv ruaj khov thiab ruaj ntseg kho cov pob qij txha ntawm cov hniav abutment.
Tsis ntev los no, cov qauv tsim ntawm telescopic hniav yas tau txais kev nyiam ntau dua.
Cov theem ntawm kev tsim cov khoom siv tes nrog lub xauv yuav tsum tau ua haujlwm hnyav dua, uas yuav cuam tshuam rau lawv cov nqi.
Cov ntaub ntawv dab tsi yog clasp prostheses ua los ntawm
Txhua qhov chaw ntawm prostheses yog tsim los ntawm cov khoom sib txawv. Lub thav duab tuaj yeem yog hlau lossis yas. Yog tias cov yas siv rau cov khoom tsis yog hlau, ces steel los yog alloys yog siv rau cov hlau, piv txwv li, chrome-cob alt los yog kub-platinum.
Steel kev tsim kho muaj nws qhov tsis zoo - oxide zaj duab xis yog tsim los ntawm qhov chaw ntawm soldering. Thiab qhov no qhia tau hais tias cov txheej txheem ntawm solder oxidation nyob rau hauv lub qhov ncauj kab noj hniav yog tab tom ua. Vim li no, steel qhov chaw siv tsawg dua thiab tsawg dua niaj hnub no,Feem ntau qhov kev nyiam yog muab rau cov qauv khoom.
Technologies kom tau txais ib lub pob txha caj dab
Txhua tus yuav tsum, tau kawg, nkag siab tias cov qauv zoo li no tsuas yog ua hauv chav kuaj hniav xwb. Txhawm rau ua qhov no, siv ntau txoj hauv kev:
- Casting ntawm tus qauv nrog kev tshem tawm cov qauv siv quav ciab los ntawm cov khoom ua haujlwm. Cov cuab yeej no suav nrog kev tshem tawm cov qauv siv quav ciab los ntawm cov qauv plaster thiab nws cov ntim rau hauv cov khoom siv refractory. Cov wax raug tshem tawm thiab hloov nrog kua hlau.
- Casting a prosthesis on a refractory model. Txoj kev no muaj qee qhov zoo dua rau thawj zaug, vim tias tsis muaj qhov shrinkage ntawm cov hlau thiab qhov ua tau ntawm kev hloov kho cov quav ciab dawb paug thaum nws raug tshem tawm ntawm tus qauv thiab ntim rau hauv cov khoom siv refractory tsis suav nrog.
Cia peb xav paub ntau ntxiv txog cov theem ntawm kev tsim cov hlua khi rau ntawm tus qauv refractory. Cov txheej txheem no tseem ceeb heev rau cov khoom zoo.
Tau qhov tsim ntawm tus qauv refractory
Cov theem ntawm kev tsim cov khoom siv tes tsho muaj xws li ib qho tseem ceeb - noj casts. Tus qauv plaster thawj zaug yog qhov tseem ceeb heev rau kev tau txais qhov casting ntawm tus ncej prosthesis (kom txhua yam yog qhov tseeb rau millimeter).
Yog hais tias tus prosthesis tau npaj rau ntawm tus qauv refractory, ces ob tug neeg ua haujlwm cam khwb cia thiab ib qho ntxiv. Hauv kev tsim cov prostheses rau ob lub puab tsaig, plaub tau txais ib zaug, uas yog, ob ntawm txhua lub puab tsaig. Qhov no yog ua kom ib tug qauv siv tau rau kev tshuaj xyuas nrog rau kev luam ntawv tom ntej, thiab qhov thib ob yog siv los ua lub hauv paus nrog cov chais, txiav txim siab.occlusion, casting thiab zaum kawg fabrication ntawm tus prosthesis.
Tus qauv ua haujlwm yog qhov tseem ceeb heev rau kev tau txais cov khoom siv zoo nkauj zoo nkauj, yog li tus kws tshaj lij yuav tsum tau tswj xyuas cov theem ntawm kev kho mob thiab kev sim ntawm kev tsim cov khoom siv prostheses.
Cov qauv ntawm lub puab tsaig yuav tsum muaj zog npaum li qhov ua tau kom tsis txhob raug puas tsuaj, yog li cov khoom tshwj xeeb yog amenable rau siab, load yog ua los ntawm supergypsum, hlau, cement lossis amalgam.
Yog tias muaj qhov tsis xws ntawm cov qauv ua haujlwm raug kuaj pom thaum lub sijhawm ua haujlwm, tom qab ntawd cov cam khwb cia yuav tsum tau rov ua dua.
cov theem hauv kev tshuaj ntsuam ntawm kev tsim qauv khuam khuam khuam khuam
Muaj ntau theem kev kho mob hauv cov txheej txheem ntawm kev tsim cov khoom siv:
- Thawj theem pib nrog kev tshuaj xyuas tus neeg mob, tham nrog nws, ua qhov kev kuaj mob kom raug, thiab xaiv cov cuab yeej kho mob. Tus kws kho mob tseem yuav ua rau muaj kev txaus siab rau kev npaj cov qauv kuaj mob thiab pab ua qauv.
- Nyob rau theem kho mob thib ob, qhov occlusion ntawm lub puab tsaig tau txiav txim siab, tus qauv kuaj mob tau tshuaj xyuas nyob rau hauv parallelometer, tom qab ntawd kos duab ntawm lub hauv paus ntawm lub puab tsaig yav tom ntej yog siv rau nws. Nws yog ib qho tseem ceeb los npaj cov hniav txhawb nqa kom tau txais qhov tseeb tshaj plaws rau kev tsim cov khoom siv tes ua.
- Nyob rau theem tom ntej, tsom mus rau tus qauv kuaj mob, ib txoj kab ciam teb thiab kos duab ntawm tus ncej prosthesis yog siv los ntawm parallelometer ntawm tus qauv ua haujlwm.
- Ntawm qhov chaw kho mob thib plaubnqa tawm qhov haum ntawm cov hlau ncej nyob rau hauv lub qhov ncauj kab noj hniav. Nws yog ib qho tsim nyog yuav tsum tau them sai sai rau cov thav duab tsis muaj cov npoo ntse thiab qhov tsis xws luag. Lub hauv paus thiab lub hauv paus yuav tsum tsis txhob sib cuag nrog lub qhov ncauj mucosa. Clasps yuav tsum nruj nreem kov cov hniav abutment. Tus kws kho mob ua tib zoo saib thiab txiav txim siab seb puas muaj qhov sib npaug ntawm cov prosthesis, thiab, yog tias tsim nyog, tshem tawm supercontacts ntawm lub moj khaum thiab cov hniav antagonist. Tsis tas li nyob rau theem no, kev xaiv cov hniav cuav tab tom pib.
- Tom ntej no los ntawm kev kos duab tsim. Nws yog ib qho tsim nyog yuav tsum tau ua kom paub tseeb tias cov txheej txheem kho mob thiab kev sim rau kev tsim cov clasp prosthesis raug soj ntsuam, thiab nws ua tau raws li txhua qhov kev xav tau ntawm tus qauv thiab hauv tus neeg mob lub qhov ncauj kab noj hniav.
- kauj ruam kawg yog muab cov prosthesis tso rau hauv lub qhov ncauj, xyuas qhov nyiaj tshuav. Tus kws kho mob yuav tsum tau muab cov lus pom zoo ntawm kev saib xyuas tus qauv.
Tag nrho cov theem no ntawm kev tsim cov khoom siv tes ua rau ntawm cov xauv los yog clasps yog qhov yuav tsum tau ua. Nov yog tib txoj hauv kev kom tau txais tus qauv tsim thiab txhim khu kev qha.
Cov kauj ruam ntawm kev ua cov prostheses hauv chav kuaj
Clasp prostheses manufacturing theem kuj muaj cov chav kuaj, ntawm no yog cov dej num ua thaum lub sijhawm lawv:
- Thaum thawj theem, tus qauv kuaj mob thiab ib qho kev pabcuam raug muab pov tseg. Kev tsim cov wax puag nrog occlusal rollers.
- Tom ntej yog qhov tsim cov qauv ua haujlwm.
- Npaj rau luam tawm. Rau qhov no, qhov chaw uas yuav tsum tsis txhob tuaj rau hauv kev sib cuag nrog lub qhov ncauj mucosa yog cais nrog ib tug phaj ntawmwax, thiab tag nrho cov voids kuj puv nrog ciab. Tom ntej no, tus qauv yog tsau rau ntawm ib tug tshwj xeeb cuvette rau duplication. Lub rhuab loj yog muab tso rau hauv nws thiab txias kom txog thaum solidified. Tom qab ntawd cov qauv raug tshem tawm thiab cov khoom ntim refractory yog nchuav rau hauv cov pwm tshwm sim. Cov qauv npaj tau tso tawm los ntawm qhov sib npaug ntawm qhov loj, qhuav, thiab ib daim duab ntawm tus ncej ntawm lub neej yav tom ntej prosthesis yog siv rau nws. Tom ntej no, cov wax luam tawm yog qauv thiab hloov nrog ib tug hlau.
- Nyob rau theem tom ntej, cov qauv ua haujlwm thiab cov qauv tsim tau muab tso rau hauv cov pob qij txha thiab cov hniav cuav raug muab tso rau ntawm lub hauv paus ntawm cov pob qij txha.
- Thaum kawg, lub hauv paus siv quav ciab hloov mus rau yas. Tsis tas li ntawd, thaum kawg, polishing thiab sib tsoo ntawm cov pob qij txha yuav tsum tau.
Ntawm no peb tuaj yeem xav tias cov khoom siv tes ua tau tag nrho dhau los ntawm kev tsim khoom thiab npaj rau kev teeb tsa.
Indications thiab contraindications
Yog tsis muaj peev xwm muab tus choj, tus kws kho mob qhia tus neeg mob siv cov hniav cuav los kho qhov tsis xws luag. Feem ntau qhov no tsis tuaj yeem zam tau yog tias tsis muaj ob peb cov hniav ua ke thiab cov abutments tau khaws cia rau ntawm ib sab xwb. Clasp hniav kuj tseem yuav xav tau nyob rau hauv cov xwm txheej hauv qab no:
- Yog tsis muaj cov hniav pem hauv ntej.
- Yuav muaj qhov tsis xws luag hauv kev kho hniav.
- Cov hniav qis qis.
- Tus neeg mob muaj qhov tob tob.
- Bruxism kuj yog ib qho qhia rau kev siv cov prostheses.
- Periodontosis.
Ntxiv rau qhov qhia rau lawv siv, categoric altxwv tsis pub siv cov clasp prostheses:
- Yog tsis haum rau cov qauv hlau.
- Tsis muaj hniav yuav lean.
- Lub puab tsaig hauv qab tsis tob txaus.
- Cov hniav uas seem muaj qis qis.
- ntshav qab zib ntau dhau.
- Muaj mob cancer.
- Pathologies ntawm cov hlab plawv system.
- Cov txheej txheem mob hauv qhov ncauj.
- Kab mob ntawm txoj hlab pa.
Qhov zoo thiab qhov tsis zoo ntawm cov khoom siv tes ua haujlwm
Txawm li cas los xij yog siv rau hauv prosthetics, lawv txhua tus muaj lawv qhov zoo thiab qhov tsis zoo. Tib yam siv rau clasp prostheses. Nov yog cov txiaj ntsig uas lawv muaj:
- Compact thiab lightweight.
- Zoo kho qhov ncauj.
- Lub siab ntawm lub puab tsaig raug faib kom raug thaum zom.
- Yog hais tias tus prosthesis yog tsau rau ntawm lub puab tsaig sab sauv, ces tag nrho palate tsis cuam tshuam, uas tsis ua rau ib tug ua txhaum ntawm kev hais lus thiab deformation ntawm saj saj.
- Zoo rau kev kho mob periodontitis.
- kho kom yooj yim.
- siv lub neej ntev.
Cov hniav hniav cuav muaj lawv qhov tsis zoo:
- Qee tus neeg mob yuav ua xua rau cov qauv hlau.
- Yuav siv sij hawm ntev kom tau siv lawv.
- Koj xav tau tsawg kawg ib khub ntawm koj tus kheej cov hniav kom muab tso rau.
- Tsawg atrophy ntawm cov hniav tshwm sim.
- Lawv tus nqi ntau dua thaum piv nrog lamellar lossischoj.
Tau kawg, muaj ntau qhov zoo dua rau txoj kev no ntawm kev sib tw, tab sis ua ntej kev teeb tsa, koj tseem yuav tsum ntsuas qhov zoo thiab qhov tsis zoo.
Yuav tu cov hniav hniav zoo li cas?
Cov theem ntawm kev kho mob thiab kev sim theem ntawm kev tsim cov khoom siv prostheses raug txiav txim siab. Nrog rau lawv cov kev ua raws, tus tsim yuav tig tawm kom muaj zog thiab txhim khu kev qha. Txawm hais tias muaj qhov tseeb tias cov hniav hniav cuav yog qhov txawv ntawm lawv qhov ntev, qee qhov kev pom zoo saib xyuas yuav txuas ntxiv lawv lub neej:
- Ntxuav koj cov hniav txhua hnub, koj tuaj yeem siv cov txhuam hniav tsis tu ncua rau qhov no.
- Nws yog ntshaw kom kho qhov ncauj kab noj hniav thiab prosthesis tsis yog thaum sawv ntxov thiab yav tsaus ntuj, tab sis kuj tom qab noj mov.
- Nws pom zoo kom yuav cov tshuaj tua kab mob tshwj xeeb rau kev kho hniav.
- Yog tias koj muaj nyiaj, koj tuaj yeem yuav lub da dej ultrasonic tu.
- Nws raug nquahu kom mus ntsib tus kws tshaj lij ib zaug txhua rau lub hlis, leej twg yuav ntxuav cov pob qij txha thiab kho nws, yog tias tsim nyog.
Los ntawm cov lus pom zoo no, nws tau pom tseeb tias kev saib xyuas cov hlua khi tes tsis yog qhov nyuaj, tab sis tsim nyog kom lawv hnav tsis tsuas yog xis nyob, tab sis kuj siv tau ntev.
Nrog txhua yam pathologies hauv cov qauv ntawm kev kho hniav, tsuas yog ib tus kws tshaj lij uas muaj peev xwm tuaj yeem ntsuas qhov hnyav ntawm qhov tsis xws luag thiab xaiv txoj kev zoo tshaj plaws ntawm kev kho hniav.
