Kev kho hniav hniav yog ib yam khoom siv rau kev noj thiab hais lus, uas feem ntau yog ua los ntawm cov khoom hu ua resin. Cov khoom siv no tau siv dav hauv kev kho hniav thiab tau raug pov thawj tias cov ntaub ntawv muaj kev nyab xeeb thiab siv tau zoo.
Cov resin muaj zoo elasticity, pob tshab thiab ruaj khov, muaj zog durability, thiab tuaj yeem tiv taus ntau txhiab zaus zom thiab tom. Vim nws qhov zoo-zoo thiab yoog raws, cov kws kho hniav xaiv siv cov khoom siv no los ua cov hniav gel brackets.
Kev kho hniav tuaj yeem pab cov neeg mob kho lawv cov hniav, txhim kho txoj haujlwm zom thiab tom, thiab tom qab ntawd txhim kho lub neej zoo ntawm cov neeg mob. Los ntawm kev siv cov ntaub ntawv cob, cov hniav hniav tuaj yeem ua tiav qhov nkhaus thiab lub kaum ntse ntse, kom nws tuaj yeem hloov kho kom zoo rau tus neeg mob cov hniav.
Nyob rau hauv luv luv, kev siv cov ntaub ntawv resin rau cov hniav nyiaj hniav kub yog qhov kev xaiv ntau tshaj plaws thiab feem ntau. Cov khoom siv no muaj ntau yam zoo los xyuas kom meej qhov zoo, yoog raws thiab ua haujlwm ntev ntawm kev kho hniav kua nplaum. Nws tuaj yeem pab cov neeg mob kho lawv cov hniav thiab txhim kho cov neeg mob kev ntseeg tus kheej thiab kev noj qab haus huv ntawm qhov ncauj. Yog li tsis txhob txhawj txog kev siv cov kua nplaum txhawb nqa yuav muaj qhov tsis zoo, vim tias nws tuaj yeem txhim kho qhov zoo nkauj ntawm cov hniav thiab tag nrho lub qhov ncauj kev noj qab haus huv.