Tan Weidong et al. Kawm txog kev kho dua tshiab ntawm Crown Defects hauv cov tub ntxhais hluas nrog lub teeb kho kom zoo nkauj. Cov ntsiab lus ntawm txoj kev tshawb no yog 38 tus neeg mob hluas thiab 47 tus kabmob tsis zoo, suav nrog 25 tus txiv neej thiab 13 tus pojniam, hnub nyoog 9-14 xyoo, 39 maxillary central incisors thiab 8 lateral incisors. Txhua tus neeg mob tau kho nrog kev kho mob hauv paus kwj dej. Cov kwj dej tom qab tau npaj rau hauv cov kwj dej hauv paus. Tom qab cov ntaub so ntswg necrotic decayed thiab nyias-walled tsis muaj zog tip raug tshem tawm, lub iav fiber ntau ncej tau khi rau hauv paus kwj dej nrog ob curing resin nplaum nplaum, thiab lub teeb yog irradiated rau 3min. Qhov seem ntawm cov yas thiab fiber ntau tom qab cov kua qaub etching yuav tsum tau coated nrog cov khoom sib xyaw photosensitive los ntawm txheej txheej, thiab txiav xaus yuav tsum tau kho raws li cov hnub nyoog sib txawv. Tom qab cov txheej txheem sab nraud tau muab sib dhos, ib txheej ntawm glycerin yuav tsum tau coated, thiab tom qab ntawd yuav tsum ua kom pom ntau yam thiab ntau qhov kev taw qhia. Cov txiaj ntsig tau pom tias 46 lub crowns tsis tiav tau kho tiav, nrog tus nqi zoo ntawm 97.87 feem pua, thiab ib qho ua tsis tiav, nrog rau qhov tsis ua tiav ntawm 2.13 feem pua. Qhov tsis ua tiav yog vim qhov hloov pauv ntawm cov hniav uas tshwm sim los ntawm cov kab mob thib ob.
Wang Yanfang kuj tau kawm 23 cov tub ntxhais hluas uas muaj lub ntsej muag tsis xws luag kho nrog lub teeb kho kom zoo nkauj, suav nrog 15 tus txiv neej thiab 8 tus poj niam, hnub nyoog 8-13 xyoo. Tag nrho 23 cov hniav rov qab yog maxillary anterior cov hniav, tsis muaj kev puas tsuaj rau cov hauv paus hniav thiab cov pob txha alveolar. Cov pob txha tawg tau nyob saum cov gingiva, thiab cov khoom sib cais tau tshiab thiab tsis zoo. 23 cov neeg mob tau kho nrog charisma thiab Karisma composite resin los kho cov yas tsis tiav, thiab cov khoom sib txuas tau kho tau los ntawm lub teeb. Cov txiaj ntsig tau pom tias tsis muaj qhov sib txawv tseem ceeb ntawm cov xim ntawm cov yas thiab cov hniav uas nyob ib sab tom qab lub teeb kho qhov sib xyaw resin kho. Kev ruaj ntseg, cov duab thiab X-ray hauv paus ntsiab lus zaj duab xis ntawm cov yas tawg tom qab kev sib txuas tau pom thiab ua raws. Lub sijhawm rov qab los ntawm 6 lub hlis mus rau 2 xyoos. Nyob rau lub hli 8, ib tug rov qab crown poob vim raug mob thiab tau zoo khaws cia tom qab reconnection. Thaum lub hli 14th, qhov tawg tawg tau poob rau hauv ib rooj plaub vim muaj kev quab yuam ntau dhau ntawm cov hniav tom ntej, thiab tau khaws cia zoo tom qab kev sib txuas. X-ray films ntawm tus so tawg crown reconnected cov hniav pom tau hais tias cov hauv paus hniav nyob rau hauv zoo, lub hauv paus ntsiab lus tsis muaj inflammatory duab ntxoov ntxoo, thiab stability, xim thiab tsos yog tiav tsis muaj kev puas tsuaj. Tus nqi khaws cia ntawm cov yas tawg yog 91.3 feem pua.
Song Qiuying et al. Kawm txog kev kho ntawm molar crown defects nrog lub teeb kho cov khoom sib xyaw. Cov ntsiab lus ntawm txoj kev tshawb no yog 84 tus neeg mob uas muaj cov kab mob molar tsis xws luag, suav nrog 51 tus txiv neej, 61 molars, 33 poj niam, 35 molars, hnub nyoog 24-72 xyoo. Tag nrho cov molar crown defects yog 1 / 2-3 / 4, tsis muaj gingivitis, periodontitis, tsis muaj cov hniav loosening, thiab lwm yam. Tom qab 96 molars tau kho nrog hauv paus kwj dej kho los yog plasticization, lawv tau kho nrog cov hauv paus hniav ntsia hlau. Tom qab fixation, lawv tau tag nrho rinsed thiab qhuav los ntawm cov pa acid etching, thiab sau thiab kho nrog lub teeb curing composite resin. Cov txiaj ntsig tau pom tias txhua tus neeg mob tau ua raws li 1-5 xyoo, thiab tus nqi zoo thiab zoo yog 100 feem pua hauv 3 xyoos. Tom qab 5 xyoos ntawm kev soj ntsuam, qhov zoo tshaj plaws thiab zoo tus nqi yog 94.19 feem pua, thiab qhov ua tsis tiav yog 5.81 feem pua. Ntawm lawv, nws yog qhov zoo dua tias tsis muaj qhov tsis xis nyob tom qab txhaws, lub cev puv puv, tsis muaj xoob, tsis muaj qhov tawg, cov npoo yog kaw, thiab zom thiab kua muag zoo; Zoo: tom qab sau, cov yas ua tiav hauv cov duab, nrog cov kab nrib pleb ntawm cov npoo. Cov khoom ntim tau me ntsis hnav tab sis tsis muaj xoob. Nws muaj qhov dav dav zom thiab tom; Qhov tsis ua hauj lwm yog tias lub cev filling yog xoob, ntog los yog tawg nrog cov ntaub so ntswg, lub hauv paus kwj dej ntswj yog xoob, cov khoom ntim ntog tawm, tsis muaj qhov dav dav zom thiab tom, thiab muaj qhov pom tseeb ntawm gingival o.
