Analyzing the dentition of the patient, it decides dentition reform remedy plan by in advance simulating diagnosis and treatment. As movement of the tooth which responds to the dentition reform instrument of cure namely the specification which is selected is simulated in order to estimate, 3D picture technology and computer technology are used. With this kind of method, comparing the choices of remedy, the cure which most is suited for the individual patient (the method remedy time being shortest and the method etc the power which is added being weakest) it is possible to select. The sub process which makes the tooth move is not beforehand stipulated, but it is calculated on the basis of the dentition reform component and the simulation of the wire which are used at the time of dentition reform remedying of the patient. As for this, sub process, something between related to load and the movement of the tooth which are added (just one side among these parameters, freely, the fact that is meant it is calculated selection it is possible) of on the basis. Therefore, as the result, in order to calculate the movement of the tooth which it occurs, specifying, it applies the load of the tooth, or or it is the opposite and you must add, in order to calculate the load of the tooth, specifying, it applies the movement of the tooth. Furthermore, this invention makes that it compares the bracket and/or the choices of thing, and the various cures which estimate the time when it is necessary to modify the arch wire, in regard to thing and the period when load is given to the tooth, possible.患者の歯列を分析して、前もって診療をシミュレートすることによって、歯列矯正治療計画を決定する。選択された治療法、すなわち特定の歯列矯正器具に応じた歯の移動をシミュレートすると共に予測するために、3D画像技術およびコンピュータ技術を用いる。このような方法で、治療の選択肢を比較して、個々の患者に最も適した治療法(最も治療時間が短い方法、加える力が最も弱い方法など)を選択することが可能である。歯を移動させるサブ工程は、予め規定されないが、患者の歯列矯正治療において用いられる歯列矯正部材およびワイヤのシミュレーションに基づいて、算出される。これは、サブ工程が、加えられる負荷と歯の移動との関係(これらのパラメータのうちの一方だけが、自由に選択可能である)に基づいて計算されるということを意味している。従って、結果として生じる歯の移動を計算するために、歯の負荷を特定して適用するか、またはその逆で、
