Frankel Orthodontics, tsim los ntawm German orthodontist Dr. Rolf Frankel nyob rau hauv nruab nrab-20th caug xyoo, yog ib tug renowned.ua haujlwm orthodontic systemtsom rau kev kho cov pob txha thiab cov hniav malocclusions los ntawm kev txhim kho orofacial leeg muaj nuj nqi. Tsis zoo li cov khoom siv ruaj khov uas feem ntau hloov cov hniav, nws tsom rau lub hauv paus ua rau- cov leeg tsis muaj zog- los coj kev loj hlob ntawm lub puab tsaig thiab cov hniav, tshwj xeeb tshaj yog nyob rau hauv cov me nyuam loj hlob (6-14 xyoo, lub sij hawm loj hlob).
Lub hauv paus ntsiab lus yog nyob rau hauv kev sivtshem tau cov khoom siv ua haujlwm(hu ua Frankel Regulators, FR) los hloov qhov chaw nyob ib ncig ntawm lub puab tsaig. Cov khoom siv no muaj cov khoom siv xws li daim di ncauj, daim npog ntsej muag, thiab daim phiaj nplaig: daim di ncauj daim di ncauj tiv thaiv lub siab ntau dhau ntawm lub puab tsaig sab sauv, cov ntaub thaiv sab plhu txo cov leeg nqaij kom nthuav dav cov hniav arches, thiab daim phiaj nplaig txhawb kom tus nplaig zoo (xws li tus nplaig so ntawm lub palate). Los ntawm kev kho cov leeg nqaij, cov khoom siv Frankel txhawb lub puab tsaig tsis zoo (piv txwv li, retrognathic mandible hauv chav II) lossis txwv tsis pub muaj kev loj hlob (piv txwv li, protrusive maxilla), ua kom lub puab tsaig ua ntej hais txog cov hniav sib dhos.
Feem ntau FR hom muaj xws li FR-I (rau Chav Kawm II Division 1 malocclusions), FR-III (rau Chav Kawm III malocclusions), thiab FR-IV (rau qhov qhib mob hnyav). Kev vam meej yog nyob ntawm tus neeg mob ua raws li kev ua raws cai- cov khoom siv xav tau 12-14 teev ntawm kev hnav txhua hnub. Clinically, nws muaj nuj nqis rau kev txhawb nqa kev sib haum xeeb ntawm lub ntsej muag thiab txo qhov xav tau kev kho mob tom qab xws li kev tshem tawm lossis phais lub puab tsaig.