# Alignment

### ![](https://4044190336-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FtqpMmwKqHLYPwTeQTRCE%2Fuploads%2F0YVz60ILeLebVRhbvLRl%2Falignment.png?alt=media\&token=6dbb031d-2c7a-49ab-a4fd-de546208d919)

### 1. Source and target

* #### **Source**

This denotes the data moving through alignment. Only one mesh can be selected.​

* #### **Target**

This denotes the data targeted to be aligned. A single mesh or CT volume can be selected.​

{% hint style="danger" %} <mark style="color:red;">**Caution**</mark>

It is impossible to select the same data in the Source and Target menus.&#x20;
{% endhint %}

{% hint style="info" %} <mark style="color:blue;">**Quick Guide**</mark>

Source data are always set to target data.
{% endhint %}

### 2. Best fit

This mode performs only the fine alignment process in the current state without a specific initial alignment.​​

### 3. Landmark

You can select a landmark on each data in Source View and Target view.

You can select previously created landmark to move(Click left![](https://4044190336-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FtqpMmwKqHLYPwTeQTRCE%2Fuploads%2F50rmAMYp4Lv8pnbj3wUu%2Fimage.png?alt=media\&token=87273892-c76c-462a-a782-b43f8582d38b))or delete (Click right![](https://4044190336-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FtqpMmwKqHLYPwTeQTRCE%2Fuploads%2FWVlEAhz2i8pjYyy4Fg8I%2Fimage.png?alt=media\&token=24ec6c30-47e2-417f-86d1-bb9ac88673f1))

To obtain an accurate alignment result, it is recommended that the corresponding landmarks of source and target be in identical location and order.

{% hint style="info" %} <mark style="color:blue;">**Quick Guide**</mark>

You can examine the selected order using the number displayed on the landmark.
{% endhint %}

<div align="left"><figure><img src="https://4044190336-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FtqpMmwKqHLYPwTeQTRCE%2Fuploads%2Fr3rjjlrThTCSSQxqE0IS%2FLandmark.png?alt=media&#x26;token=69642d49-4def-479b-aa2f-7b95255caf16" alt="" width="184"><figcaption></figcaption></figure></div>

* **Source view**

You can observe the source data moving alignment and establish the necessary landmarks.

* **Target view**

You can observe the target data to be alignment and establish the necessary landmarks.

* **Preview**

The preview is updated in real time whenever a landmark is added or modified.

{% hint style="info" %} <mark style="color:blue;">**Quick Guide**</mark>

It is recommended to select at least THREE landmarks each and perform fine alignment with the source and target aligned appropriately in the preview.
{% endhint %}

### 4. Dental/Facial to CT

It denotes the AI based automated alignment setting method. The AI detects upper, lower, and facial data to align with the CT.

{% hint style="danger" %}
The CT volume must be selected as the Target and the oral scan data to be aligned must be selected in correct type Upper, Lower or Face data.
{% endhint %}

**Last updated : 2024.02.29**&#x20;


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