Zero lines are reliable and reproducible reference lines that are used to evaluate various parameter, e.g. in the software, including -HTQOQEENWUCN
OKFFNGFGXKCVKQPUHTQOVJG dental arch -HTQONCVGTCN
TKIJVFGXKCVKQPQHVJGRNCPG -HTQORCNCVCN
NGHVEQORCTKUQPNGHVCPF right side