The present invention relates to a dental light curing device (10) provided for curing a dental material, and the dental light curing device includes a handpiece (20) and a mounting base, The handpiece (20) has a light source, specifically a light source having a plurality of LED chips (42, 44, 46, and 48) arranged adjacent to each other about the optical axis, and a control device for the light source. (22) and at least one sensor arranged adjacent to the light source, also in this case around the optical axis-a light guide, specifically a light guide rod ( 12) is extended in front of the light source, and the light guide rod (12) has a wavelength passband including at least blue visible light, specifically green visible light and UV light, and the control Select the control program for the device (22) -Option device, in particular having a push button of the handpiece (20). The present invention further includes a “pre-curing” control program that includes the control device (22) and can be selected via the selection device, and the photo-curing device has a sub-wavelength different from the photo-curing main wavelength band. It can be operated in a band, characterized in that the light radiation of the photocuring device is outside the sensitivity band of the dental material to be cured. The control device (22) automatically turns on the light source in the dominant wavelength band to remove excessive adhesive glue (28) in a dental restoration, in particular an adhesive crown or an adhesive bridge, with at least one sensor. Is precured when detecting light reflected by the tooth surface in the sub-wavelength band. [Selection] Figure 1本発明は、歯科用材料を硬化させるために設けられる歯科用光硬化装置（１０）に関するものであり、前記歯科用光硬化装置は、ハンドピース（２０）と、取り付け台と、を備え、前記ハンドピース（２０）は光源、具体的には－光軸の回りに－互いに隣接して配置される複数のＬＥＤチップ（４２，４４，４６，及び４８）を有する光源と、前記光源の制御装置（２２）と、前記光源に隣接して配置される少なくとも１つのセンサと、を有し、－この場合も同じく、前記光軸の回りには－光誘導器、具体的には導光ロッド（１２）が前記光源の前方に延設され、前記導光ロッド（１２）は、少なくとも青色可視光を含む、具体的には緑色可視光及びＵＶ光を更に含む波長通過帯域を有し、前記制御装置（２２）の制御プログラムを選択する選択
