2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Zoo: Cov gubernacular qaum thiab kwj dej yog cov qauv anatomical nyob nyob rau hauv cov pob txha alveolar crest ntawm maxilla los yog mandible, Cov lus tseem ceeb: hniav eruption; kev kho hniav tseem ceeb; kev kho hniav mus tas li. qab cov hniav deciduous.
Dental follicle form yog dab tsi?
Periodontal Tissue Engineering
Dental follicle cells (DFCs) daim ntawv the PDL los ntawm kev sib txawv rau hauv PDL fibroblasts uas zais collagen thiab cuam tshuam nrog fibers ntawm cov pob txha uas nyob ib sab thiab cementum.
Qhov twg yog qhov kev xav tau tshaj plaws ntawm cov hniav tawg?
Tam sim no, qhov kev xav tau lees paub tshaj plaws yog tias kho cov pob txha asymmetric nyob ib puag ncig tus hniav yog lub luag haujlwm rau cov hniav txav mus rau hauv qhov ncauj kab noj hniav. Muaj resorption ntawm coronal sab thiab pob txha tsim ntawm apical (basal) sab ntawm tus hniav (Marks and Schroeder, 1996; Wise and King, 2008).
Dental lamina yog dab tsi?
Kev Kho Mob Txhais ntawm kev kho hniav lamina
: thaj tsam ntawm cov kab mob epithelial ntawm qhov npog ntawm txhua lub puab tsaig embryonic uas loj hlob mus rau hauv cov pos hniav tsim thiab ua rau cov kab mob enamel ntawm lub cev. hniav. - hu ua dental ridge.
Dab tsi yog qhov kev xav ntawm cov hniav eruption?
Theory. Hauv cov ntsiab lus, aetiology tom qab cov txheej txheem eruption yogib qho innervation-provoked siab nyob rau hauv lub apical ib feem ntawm cov hniav tshwm sim nyob rau hauv ib qho eruptionuas yuav tsum tau hloov mus tas li los ntawm covperiodontal daim nyias nyias thiab lub active zog ntawm lub hauv paus follicle, rhuav tshem cov pob txha overlying.
Pom zoo:
Suez kwj dej nyob qhov twg?
Hnub no peb nthuav tawm Suez Canal. Lub kwj dej yog ib txoj kev dej dag uas khiav sab qaum teb mus rau sab qab teb hla Isthmus ntawm Suez nyob rau sab qaum teb-sab hnub tuaj tim lyiv teb chaws; nws txuas chaw nres nkoj Said ntawm Hiav Txwv Mediterranean nrog Gulf of Suez, ib caj npab ntawm Hiav Txwv Liab.
Kwj dej kwj dej pib thiab xaus qhov twg?
plab hnyuv pib ntawm qhov ncauj thiab xaus ntawm qhov quav. Nws zoo li cov leeg nqaij ntev, txog li 10 meters ntev, nrog rau lub plab zom mov txuas nrog txoj kev. kwj dej kwj dej xaus li cas? Lub kwj dej yog lub cev nqaij daim tawv tsis tu ncua uas pib ntawm lub qhov ncauj thiab xaus ntawm lub qhov quav thiab yog lub luag haujlwm rau kev zom thiab nqus ntawm cov khoom noj thiab kua.
Kwj dej nyob qhov twg?
Muaj ob hom kwj dej: txoj kev dej thiab cov kav dej. Txoj kev dej yog qhov chaw taug kev ntawm lub cev dej, thiab tuaj yeem nyob hauv ib lub bay lossis qhib hiav txwv, tuaj yeem txuas ob lossis ntau lub cev dej, lossis tuaj yeem tsim kev sib txuas hauv ib lub nroog .
Tus kwj dej Guyon nyob qhov twg?
Guyon tus kwj dej kuj hu ua ulnar qhov lossis ulnar kwj dej, yog ib qho anatomical fibro-osseous kwj dej nyob ntawm sab nruab nrab ntawm tes. Nws txuas ntxiv ntawm qhov sib thooj ntawm cov pob txha pisiform thiab distally ntawm tus nuv ntawm hamate.
Vim li cas lawv thiaj tsim lub kwj dej kwj deg?
kwj dej yog tsim los tiv thaiv Canada los ntawm Asmeskas kev tawm tsam. Qhov kev hem thawj ntawd tau dhau los ua qhov tseeb thaum Tsov Rog Xyoo 1812, uas tau ua pov thawj tias St. Lawrence lub neej muaj zog npaum li cas los tawm tsam sab qab teb.
