---
title: "Align 3D files "
url: "https://learn.smilecloud.com/en/article/align-3d-files"
language: "en"
last_updated: "2026-05-20T08:30:13.295Z"
---

# Align 3D files 

Quick. Easy. Directly in your browser.

The **Review** feature allows you to align and stack 3D files.

## Step 1. Create a Review Scene

-   Open **Projects** → **Review**
-   Add your 3D files (e.g. scans + CBCT)

![](https://cdn-assets.productfruits.com/33d54ef7-0d7c-4cac-b8d1-081cc3d81d02)

![](https://cdn-assets.productfruits.com/cc7a81cf-01bf-4289-baac-3cf61900a8b0)

📌 Review will display each file in its **original coordinates**. If they were captured in different positions, they will appear misaligned.

![](https://cdn-assets.productfruits.com/124de721-73e0-4343-bcaa-0ed6f3d8aa50)

## Step 2. Select Files to Align

-   Select the **upper scan** and the **CBCT file**
-   Click **Align**

![](https://cdn-assets.productfruits.com/c4414592-b671-4e96-93ce-0215a2494f1d)

👉 The **final position** will be dictated by the file on the **left**.

-   To align the **scan** to the CBCT’s position → place CBCT on the left
-   To align the **CBCT** to the scan’s position → place scan on the left

![](https://cdn-assets.productfruits.com/f7632ad2-ebb6-40d2-be97-137233ea13c7)

## Step 3. Place Corresponding Points

-   Mark at least **3 corresponding points** on both files
-   Click **Align**

🔎 Tip: If the alignment doesn’t look correct, go back and adjust the points.

-   Once alignment is correct, click **Done**

![](https://cdn-assets.productfruits.com/ec4f00c8-dd51-49ef-a035-d1934f6dbc62)

## Step 4.  Explore

✅ Your 3D files are now aligned, allowing you to review in full context.

-   Double-click anywhere to create a **cross-section**
-   To measure, double-click directly on the cross-section

![](https://cdn-assets.productfruits.com/315c98b3-52b7-45df-8b33-8e677333b04c)