Please activate JavaScript!
Please install Adobe Flash Player, click here for download

CAD/CAM - international magazine of digital dentistry

special _ smile analysis and smile design I _Click and drag the ruler tool from the top to the bottom of the tooth to generate a vertical number, in this case 170 pixels (Fig. 24). Multiply the number of pixels by the conversion factor. In this case, 170 x 1.29 = 219 pixels; 219 pixels is digitally equivalent to 11 mm (Fig. 25). Deter- mine the digital tooth width using the same for- mula. _Createanewlayer,leaveittransparent,andmark the measurement with the pencil tool (Fig. 26). Applyinganewproposedtoothform Next, follow these steps: _After performing the smile analysis and digital measurements, choose a custom tooth grid ap- propriateforthepatient.Selectatoothgridbased on the width-to-length ratio of the planned teeth (e.g., 80/70/90 or 80/65/80). Open the im- age of the chosen tooth grid in Photoshop and dragthegridontotheimageofteethtobesmile designed (Fig. 27). _If the shape or length is deemed inappropriate, press the command button (control button for PCs) and “z” to delete and select a suitable choice. _Depending on the original image size, the tooth grid may be proportionally too big or too small. To enlarge or shrink the tooth grid created (with the layer activated), press command (or control) and “t” to bring up the free transform function. While holding the shift key (holding the shift key allows you to transform the object propor- tionally), click and drag a corner left or right to expand or contract the custom tooth grid. _Adjust the size of the grid so that the outlines of the central incisors have the new proposed length. Move the grid as necessary using the move tool so that the incisal edge of the tooth grid lines up with the new proposed length (Fig. 28). _Areas of the grid can be individually altered us- ing the liquify tool (Fig. 29). Fig. 31_Use the selection modify tool to expand the selection to better fit the grid shape. Fig. 32_Activate the layer of the teeth by clicking on it. Blue-coloured layers are active. Fig. 33_With the layer of the teeth highlighted, choose “liquify”; a new window will appear with a red background called a “mask”. Fig. 34_Shape one tooth at a time as needed by selecting “wand”. Fig. 35_Once all of the teeth have been shaped, use the liquify tool. I 17CAD/CAM 2_2015 Fig. 31 Fig. 32 Fig. 34 Fig. 35 Fig. 33

Pages Overview