## 3 Results  
Based on intraoral imaging and occlusion scans (right and left), the 3 Shape software generates a color map of the occlusal contacts. Therefore, it is necessary to ensure that the patient does not relax their lower jaw during the occlusion scan. The areas marked in red on the map are the densest, followed by yellow areas 1 mm apart and green areas 2 mm apart. The symmetrical distribution of the contacts can be used as an indication of proper scanning of the dental arches without any deviations or unilaterally stronger contacts (Figure 2A). The T-Scan system also produces a color map, but it is based on the pressure on the sensor and only real contacts are counted. The color marks correspond to the strength of the contacts, with strong contacts in red, followed by yellow, green, and weak contacts in blue. Pressure information on each tooth is automatically outputted by the quadrants (frontal right and left, distal right and left). Preliminary importing of the digital impressions allows the software to place the contacts in their exact places on the tooth surfaces. Without them, it is necessary to use articulation paper to transfer information to the patient's mouth (Figure 2B). Both digital systems can determine the occlusal contacts. This study used the same digital impressions but interpreted them with different systems. The 3 Shape system marks only the densest contacts, which does not necessarily mean they are the strongest. This system visualizes based on proximity. On the other hand, the T-Scan system measures the strength of the contacts, which is easily demonstrated by bar charts of different colors. Figures 3A,B and 4A,B show the dense contacts according to 3 Shape, the first contact according to T-Scan, and the strength of the contacts according to T-Scan. The following results can be seen (the pictures are examples; the patient was randomly selected, and the pictures are intended to show the differences between the two systems, not to draw conclusions):  
* The tight contact of tooth 13 according to the 3 Shape system is the first contact according to the T-Scan system;
* The tight contact of tooth 14 according to the 3 Shape system is moderately strong (light blue marking) according to the T-Scan system;
* The tight contact of tooth 15 according to the 3 Shape system is the strongest (yellow marking) according to the T-Scan system;  
Figure 1: Positioning the T-Scan device in the patient’s mouth. The tight contacts of teeth 26 and 27 according to the 3 Shape system are moderately strong (green marking) according to the T-Scan system;  
All contacts in the 3 Shape system have the same markings, but the difference between them can be analyzed only by the T-Scan system;  
The percentage distribution of the strength of the contacts in the dental arch on the single teeth or on the quadrants can be visualized only by the T-Scan system;  
The T-Scan system generates a video and shows the sequence and strength of the contacts in great detail, combined with the movement of the lower jaw;  
The T-Scan system notes occlusion and disocclusion times, which are important parameters in the examination and treatment of patients with parafunction;  
The movement of the lower jaw and its direction and shape can also be documented only through the T-Scan system. Figure 2: (**A**) Occlusion map from intraoral scanner Trios (3 Shape, 2014); (**B**) occlusion map from T-Scan Novus (Tekscan, 2018). To better visualize the differences, the particular indicators are shown in Table 2. The purpose of the table is not to reject intraoral scanning; on the contrary, it is a necessity in modern dentistry to indicate its possibilities. For standard treatment, these possibilities are absolutely sufficient. For more specific treatment (such as bruxism and occlusion trauma), the help of the T-Scan system is needed. The T-Scan system can only determine the first contact in central occlusion. The results are presented in Table 3. In rare cases, there may not be only one first contact.