PROBLEM TO BE SOLVED: To provide a dental treatment device which drives a cutting tool attached to a head part and can appropriately cut a root canal of a tooth regardless of a capacity of an operator or the shape and condition of the root canal, and provide a driving method of the same.SOLUTION: In a dental treatment device, a control part controls a drive part according to a drive sequence. The drive sequence includes a plurality of drive patterns, and at least one drive pattern among the plurality of drive patterns is different from other drive patterns. The plurality of drive patterns include at least one drive pattern having a drive for rotating a cutting tool in a cutting direction of cutting an object to be cut, and a drive for rotating the cutting tool in a non-cutting direction which is a reverse rotation direction of the cutting direction.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、ヘッド部に取付けた切削工具を駆動する歯科用治療装置において、術者の能力、根管の形状や状況に関わらず歯牙の根管を適切に切削することができる歯科用治療装置、およびその駆動方法を提供する。【解決手段】本発明に係る歯科用治療装置では、制御部が駆動シーケンスに従い駆動部を制御する。当該駆動シーケンスは、複数の駆動パターンを含み、複数の駆動パターンのうち少なくとも1つの駆動パターンは、他の駆動パターンと異なる。複数の駆動パターンは、切削対象物を切削する切削方向に切削工具を回転する駆動と、切削方向とは逆回転方向の非切削方向に切削工具を回転する駆動とを有する駆動パターンを少なくとも1つ含む。【選択図】図2