To provide an orthodontic appliance for dental use which is easy to wear in an oral cavity and improves insufficiency of chin development simultaneously with maxillary / mandible.SOLUTION: The dental correcting device 1 for improving the lack of jaw development comprises a maxillary abutting portion 10 abutting against the inner surface of the upper jaw, a lower jaw abutting portion formed integrally with the upper jaw abutting portion and having a lower jaw And an engaging wire 40 attached to both the contacting portion 20 and both side surfaces of the upper jaw abutting portion and engaged with either molar tooth of the maxillary tooth row. An upper inner wire 50 attached to the front surface of the upper jaw abutment part and abutting along the inner surface of the upper jaw dentition, and an upper inner wire 50 attached to the front surface of the lower jaw abutment part and abutted along the inner surface of the mandibular dentition And a lower inner wire 60.BACKGROUND OF THE INVENTION【課題】口腔への装着が容易であって、顎発育不足の改善を上顎・下顎同時に図る歯科用の矯正装置を提供する。【解決手段】顎発育不足の改善を図る歯科用の矯正装置1は、上顎の内面に当接する上顎当接部10と、上顎当接部と一体的に成形され、下顎の内面に当接する下顎当接部20と、上顎当接部の両側面に取り付けられ、上顎歯列のいずれかの臼歯に係合される係合ワイヤー40と、を備える。また、上顎当接部の前面に取り付けられ、上顎歯列の内面に沿って当て付けられる上部内側ワイヤー50と、下顎当接部の前面に取り付けられ、下顎歯列の内面に沿って当て付けられる下部内側ワイヤー60と、をさらに備えるのが好ましい。【選択図】図1
