This invention the upper gnathal reform vessel (OKS) and the mandibular reform vessel (UKS) regards the dentition reform device which it has. The gnathal reform vessel has, respectively, the engagement section (14 and 30) adjustment mechanism of for the sake of (13). When the opening is closed, it engages the engagement section together. Each adjustment feature (13), the adjustment spindle which extends to the positive inside pages of the gnathal reform vessel (16) it possesses, in that spindle head, it can access at the front part the instrument (T) with. As a result, as for position of the engagement section, it can adjust very much, easily it can designate to adjust especially while the dentition reform device is as inside the opening of the patient, very much easily.本発明は、上顎矯正器(OKS)および下顎矯正器(UKS)を備える歯列矯正装置に関する。顎矯正器は、それぞれ、係合部(14、30)のための調節機構(13)を有する。口を閉じると、係合部は共に係合する。各調節機構(13)は、顎矯正器の正中面に延びる調節スピンドル(16)を有し、そのスピンドルヘッドには、道具(T)により前部でアクセスできる。その結果、係合部の位置は、大変容易に調節することができ、とりわけ歯列矯正装置が患者の口内にある間も、大変容易に調節することができる。