# Outer
## Outer
The Outer tab is enabled or disabled depending on the selected crown.
### 1. Deform
Modifies the external shape of the crown.
#### 1.1 Free deform
Freely modify the external shape of the crown using a brush.
{% hint style="info" %} **Quick Guide**
Holding the **H** key while adjusting deforms the crown based on the insertion direction.
{% endhint %}
#### 1.2 Add
Adds to the crown's external shape.
#### 1.3 Remove
Removes parts of the crown's external shape.
#### 1.4 Smooth
Smooths the external surface of the crown.
#### 1.5 Flatten
Flattens the external surface of the crown.
#### 1.6 Brush size
Adjusts the size of the brush tool. The current radius value of the brush is displayed.
#### 1.7 Strength
Adjusts the strength of the brush.
\*Free Deform is not affected by strength adjustments.
#### 1.8 Sync brush size to zoom state
Enables or disables the synchronization between the brush size and the zoom level of the 3D view. When enabled, the brush size adjusts dynamically based on the zoom level of the 3D view.
#### 1.9 Compensate min. thickness
This option appears when the minimum thickness is not met. Clicking the Compensate Min. Thickness button adjusts the crown shape to satisfy the minimum thickness requirement.
#### 1.10 Smart edit
Allows easy adjustment of the anatomical features of the crown.
\*This feature is not available in bridge multi-selection mode. It is enabled only when selecting individual crowns generated as part of a bridge.
#### 1.10-a Groove
Adjusts the depth of the grooves in the molar region.
#### 1.10-b Cusps
Adjusts the height of the cusps. Initially detected cusp points can be adjusted in the 3D view. Buccal and lingual cusps can be adjusted separately.
### 2. Hole
You can add, modify, or remove screw holes in the crown.
Click on the desired location to add a screw hole, which will display a screw cylinder for hole creation. The added cylinder can be moved by dragging and removed by right-clicking.
The screw hole size can be adjusted with a radius ranging from 0.5 mm to 2.5 mm.
When closing the tool panel, the screw hole is created or updated based on the current cylinder position. If a screw hole has already been created, deleting the cylinder and then closing the tool panel will remove the hole from the crown.
{% hint style="info" %} **Quick Guide**
For crowns aligned with the implant library, the cylinder cannot be moved but can only be rotated.
{% endhint %}
{% hint style="danger" %} **Caution**
Holes cannot be created for In-onlay and Pontic types.
{% endhint %}
### 3. Hook
You can add, modify, or remove hooks on the crown.
Click on the desired location to add a hook. The added hook can be moved by dragging or removed by right-clicking.
After positioning the hook in the desired location, click the Apply button to merge the hook shape with the crown's external structure.
{% hint style="danger" %} **Caution**
Once a hook is merged with the crown's external shape, it can no longer be moved or deleted, even if you re-enter the Hook tab.
{% endhint %}
### 4. Type
In addition to the AI-based crown design provided by default in Dentbird Crown, you can choose from various options such as Mirror, Copy, Pre-op Copy, and different library options to design crowns of various shapes.
When you select a type to change, a crown of that type is generated, and after generation, the selected tooth's type is updated accordingly.
#### 4.1 AI Crown
The default AI-generated crown in **Dentbird**. It designs the optimal crown shape for the current case.
#### 4.2 Mirror as opposite tooth
Creates a crown by mirroring the shape of the contralateral tooth in the same arch.
※ If the opposite arch lacks partial scan data or if the contralateral tooth is missing, crown generation is not possible.
#### 4.3 Copy as proximal tooth
Creates a crown by copying the shape of an adjacent premolar or molar in the posterior region.
※ If the adjacent premolar or molar is missing, crown generation is not possible in the anterior region.
#### 4.4 Copy as pre-op
Creates a crown by copying the shape of the tooth before preparation.
※ Crown generation is not possible without diagnostic model data.
When selecting "Copy as Pre-op", choose the required scan data from the Additional category, then click \[Select] to generate the crown.
{% hint style="warning" %} **Warnings**
Crowns generated using Mirror, Copy, or Pre-op Copy may not have an optimal shape.
{% endhint %}
#### 4.5 Library options
Loads crowns from a predefined library.
* In the posterior region, three types are available based on cusp and groove shapes.
* In the anterior region, three different shapes are also provided.
### 5. Pontics
Modifies the base shape of the pontic tooth. You can choose from four base types: Modified Ridge-lap , Conical , Hygienic , and Ridge-lap . After selecting a base type, click Apply to confirm the changes.
Freely modify the external shape of the crown using a brush.
{% hint style="info" %} **Quick Guide**
Holding the **H** key while adjusting deforms the crown based on the insertion direction.
{% endhint %}
#### 1.2 Add 
Adds to the crown's external shape.
#### 1.3 Remove .png?alt=media&token=8b953e4a-0a6c-47b6-b153-4c36e6bf793c)
Removes parts of the crown's external shape.
#### 1.4 Smooth 
Smooths the external surface of the crown.
#### 1.5 Flatten .png?alt=media&token=e8ffef85-db53-4cd4-89dd-67d3b25e15fd)
Flattens the external surface of the crown.
#### 1.6 Brush size
Adjusts the size of the brush tool. The current radius value of the brush is displayed.
#### 1.7 Strength
Adjusts the strength of the brush.
\*Free Deform is not affected by strength adjustments.
#### 1.8 Sync brush size to zoom state
Enables or disables the synchronization between the brush size and the zoom level of the 3D view. When enabled, the brush size adjusts dynamically based on the zoom level of the 3D view.
#### 1.9 Compensate min. thickness
This option appears when the minimum thickness is not met. Clicking the Compensate Min. Thickness button adjusts the crown shape to satisfy the minimum thickness requirement.
#### 1.10 Smart edit
Allows easy adjustment of the anatomical features of the crown.
\*This feature is not available in bridge multi-selection mode. It is enabled only when selecting individual crowns generated as part of a bridge.
#### 1.10-a Groove
Adjusts the depth of the grooves in the molar region.
#### 1.10-b Cusps
Adjusts the height of the cusps. Initially detected cusp points can be adjusted in the 3D view. Buccal and lingual cusps can be adjusted separately.
The default AI-generated crown in **Dentbird**. It designs the optimal crown shape for the current case.
#### 4.2 Mirror as opposite tooth 
Creates a crown by mirroring the shape of the contralateral tooth in the same arch.
※ If the opposite arch lacks partial scan data or if the contralateral tooth is missing, crown generation is not possible.
#### 4.3 Copy as proximal tooth 
Creates a crown by copying the shape of an adjacent premolar or molar in the posterior region.
※ If the adjacent premolar or molar is missing, crown generation is not possible in the anterior region.
#### 4.4 Copy as pre-op 
Creates a crown by copying the shape of the tooth before preparation.
※ Crown generation is not possible without diagnostic model data.
When selecting "Copy as Pre-op", choose the required scan data from the Additional category, then click \[Select] to generate the crown.
Loads crowns from a predefined library.
* In the posterior region, three types are available based on cusp and groove shapes.
* In the anterior region, three different shapes are also provided.
### 5. Pontics
Modifies the base shape of the pontic tooth. You can choose from four base types: Modified Ridge-lap 
, Conical 
, Hygienic 
, and Ridge-lap 
. After selecting a base type, click Apply to confirm the changes.
