A device (1) for dental use for discriminating the color of teeth, comprises: a cellular phone (2) with a digital camera (20) comprising a lens (21) and a light source (22) acting as flash, a case (3), a spacer (7) mounted on the case (3) in correspondence of the lens (21) and the light source (22), a first polarization filter (4) and a second polarization filter (5) disposed inside the spacer (7), respectively on said lens (21) and on said light source (22), a calibration label (8) disposed in the spacer (7), a database (100) containing a plurality of digital sample images that univocally define sample colors, and a comparison software (101) to compare the digital image of the tooth taken with the device (1) with said sample images of the database (100) to discriminate the color of the photographed tooth.一種用於辨別牙齒顏色的牙科用裝置(1)包含：具有數位攝影機(20)的手機(2)，該數位攝影機(20)包含透鏡(21)以及充當閃光燈的光源(22)；外殼(3)；隔片(7)，其安裝於該外殼(3)上、對應於該透鏡(21)與該光源(22)；第一偏光濾光鏡(4)以及第二偏光濾光鏡(5)，其在該隔片(7)內側分別安置於該透鏡(21)與該光源(22)上；校準標記(8)，其安置於該隔片(7)中；資料庫(100)，其含有複數個數位樣本影像，該等數位樣本影像明確地界定樣本顏色；以及比較軟體(101)，其用以將該裝置(1)拍攝的牙齒之數位影像與該資料庫(100)之該等樣本影像進行比較以辨別該所拍攝牙齒之顏色。
