Yuav kos tus hniav li cas yog tias koj tsis yog tus kws kos duab lossis tus menyuam kawm ntawv kho hniav

2024 Tus sau: Leah Sherlock | [email protected]. Kawg hloov kho: 2023-12-17 05:37

Raws li koj paub, ib tus neeg ib txwm muaj 32 tus hniav. Txhua tus ntawm lawv muaj qhov sib txawv, qauv thiab lub hom phiaj. Cov anterior yog hu ua incisors, ua raws li cov fangs thiab zom cov hniav. Xwm muab rau peb incisors thiab fangs kom peb tuaj yeem tom los ntawm peb cov zaub mov, thiab molars, lossis cov hniav ntse, txhawm rau zom nws ntxiv. Txhawm rau kom nkag siab yuav ua li cas kos tus hniav, koj yuav tsum nkag siab me ntsis txog nws cov qauv sab hauv.

tib neeg cov hniav ua haujlwm li cas?

Cov tub ntxhais kawm kawm ntawm Kws Kho Hniav Kho hniav raug yuam kom ua kom muaj cov duab kos duab ntxaws ntxaws thaum lawv kawm. Tab sis peb yuav txiav txim siab tsuas yog qhov tseem ceeb ntawm cov hniav thiab txav mus rau kev kos duab. Tag nrho cov ntawm lawv muaj ib tug crown npog nrog dawb enamel. Nyob rau hauv nws, lub puab txheej yog muab zais - dentin, pulp thiab paj hlwb. Cov hauv paus hniav ntev thiab muaj zog loj hlob tob rau hauv lub puab tsaig los ntawm cov hniav: nyob rau hauv pem hauv ntej nws yog ib qho, thiab nyob deb - los ntawm ob mus rau plaub.

Yuav ua li cas kos tus hniav nrog me nyuam?

Yuav kom tsis txhob nkag mus rau hauv cov ntsiab lus anatomical,rau ib tug me nyuam los yog ib tug beginner, nws yog txaus kom nco ntsoov ob lub ntsiab - lub crown thiab cov hauv paus hniav. Txoj kev yooj yim tshaj plaws los kos tus hniav yog xav txog qhov zoo li lub plawv nrog ob txhais ceg.

1. Draw lub siab elongated.
2. Ntxiv cov hauv paus hniav rau nws.

Qhov piv txwv yooj yim no yog txoj hauv kev yooj yim tshaj plaws kom nkag siab tag nrho cov duab ntawm tus hniav. Tom qab ntawd, koj tuaj yeem txuas mus rau daim duab qhia ntxaws ntxiv.

Yuav ua li cas kos tus hniav peb-dimensional?

Yuav kom raug thiab sib faib ua tus hniav ntawm tib neeg, koj yuav tsum tau mus rau txoj haujlwm hnyav dua. Txoj hauv kev zoo tshaj plaws los kawm yog los ntawm kev soj ntsuam, thiab koj tuaj yeem kuaj xyuas lawv ze rau pem hauv ntej ntawm daim iav. Saib kom ze, koj tuaj yeem pom tias peb cov hniav (tsawg kawg yog cov tiag tiag) tsis yog qhov zoo tagnrho thiab sib luag, nrog rau ntau qhov bulges, kev nyuaj siab thiab pob.

Kev ua si ntawm lub teeb thiab duab ntxoov ntxoo yog lub hauv paus ntawm kev kos duab peb sab. Yog li ntawd, nyob rau hauv lub recesses ntawm tus hniav, nws yog tsim nyog los xaiv ib tug duab ntxoov ntxoo, thiab qhia highlights ntawm nws convex qhov chaw.

Dhau li, tsis txhob hnov qab txog cov hauv paus hniav. Nyob rau hauv cov xwm, lawv tsis tshua muaj heev nyob rau hauv ib tug zoo tagnrho ncaj duab. Feem ntau lawv muaj curvature, thiab ib tug ntawm lawv, raws li txoj cai, yog ntev tshaj li lwm tus. Txhawm rau khaws qhov kev faib ua feem, koj yuav tsum nco ntsoov tias cov hniav ntawm cov hniav feem ntau yog ib nrab ntawm qhov ntev ntawm nws cov hauv paus, thiab kom tsis txhob yuam kev, koj tuaj yeem siv tus pas ntsuas hauv cov txheej txheem ntawm kev kos duab.

Nws tsim nyog pib kos tus hniav nrog cov ntaub ntawv qub uas tau piav saum toj no. Maj mam, koj tuaj yeem ntxiv kev ntxhib los mos, ntim thiab realism nrog strokes. Kev kos tus hniav yog ib qho yooj yim txaus vim nws yog ib qho ntawm cov khoom ntawduas peb ntsib txhua hnub thiab tuaj yeem xav txog ua ntej.