Differences

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--- en:crowncoordinatesystem [2023/12/15 08:08] – [Preface] onyxadmin
+++ en:crowncoordinatesystem [2024/04/01 09:23] (current) – [Preface] onyxadmin
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 ===== Preface=====
-The verbal description of tooth movements has always been based on the anatomical conditions of tooth anchoring in the jaw. Different reference systems are used for individual movement components. For example, rotations are understood as rotations around the root axis, while inclination and angulation refer to the alignment of the clinical crown axis (FACC) in relation to the occlusal plane of the jaw. The situation is similar for the displacement components: here, occlusal movements are interpreted along the root axis, while transversal movement components are understood in the mesial-distal direction or perpendicular to it.\\\
+The verbal description of tooth movements has always been based on the anatomical conditions of tooth anchoring in the jaw. Different reference systems are used for individual movement components. For example, rotations are understood as rotations around the root axis, while inclination and angulation refer to the alignment of the clinical crown axis (FACC) in relation to the occlusal plane of the jaw. The situation is similar for the displacement components: here, occlusal movements are interpreted along the root axis while transversal movement components are understood in the mesial-distal direction or perpendicular to it.\\
-The digital planning of tooth movements makes it necessary to formulate the anatomically non-orthogonal tooth coordinate system in a mathematically consistent manner in order to be able to clearly describe tooth positions and their changes numerically. \\
+The digital planning of tooth movements requires to formulate the anatomically non-orthogonal tooth coordinate system in a mathematically consistent manner in order to be able to clearly describe tooth positions and their changes numerically. \\
 The mathematically consistent modeling of tooth movements used in all OnyxCeph³(tm) modules is described below.\\
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