--- title: OVO3 | Using the Undercuts tool description: undercuts --- [Skip to content](https://help.3disc.com/knowledge/ovo3-using-the-undercuts-tool#main-content) English Show submenu for translations ![3DISC\_Logo\_RGB\_tiny.png\]](https://help.3disc.com/hs-fs/hubfs/3DISC_Logo_RGB_tiny.png?height=50&name=3DISC_Logo_RGB_tiny.png) - [Default HubSpot Blog](https://3disc-1.hubspotpagebuilder.com/blog) Open main navigation Close main navigation - [Default HubSpot Blog](https://3disc-1.hubspotpagebuilder.com/blog) - English Show submenu for translations - Go to 3disc.com Go to 3disc.com Welcome to OnlineHelp! - There are no suggestions because the search field is empty. 1. [OnlineHelp](https://help.3disc.com/knowledge?hsLang=en) 2. [OVO3 | All Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en) 3. [Live Scan Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#live-scan-tools) # OVO3 | Using the Undercuts tool #### Using the Undercuts tool ![ico-scan-ico-scan-undercuts-enabled](https://help.3disc.com/hubfs/ico-scan-ico-scan-undercuts-enabled.svg) The **3DiscClinic™** **Undercuts Tool** automatically detects and calculates undercuts on the digital 3D model: - **User View:** enables the practitioner to choose the insertion axis that will be used to calculate undercuts on the dental arch - **Auto Detect:** determines the optimal insertion axis and displays the undercuts The insertion axis is indicated by a rod. ![undercuts\_0](https://help.3disc.com/hs-fs/hubfs/undercuts_0.png?width=653&height=384&name=undercuts_0.png) 3DiscClinic™ Undercuts Tool   ### Undercuts Tool: Expanded Menu To access the **Undercuts** tool expanded menu: Click on the **Undercuts** icon in the **Live Scan Tools** menu, displayed below the 3D digital model. ![undercuts\_toolset\_a](https://help.3disc.com/hs-fs/hubfs/undercuts_toolset_a.png?width=670&height=177&name=undercuts_toolset_a.png) #### Positioning the 3D Digital Model To position the 3D digital model: Click on the **Navigation** icon of the **Region selector | Navigation** toggle button. Using the **Navigation tool**, ***Left-Click+Drag*** the 3D digital model to the desired axis of insertion for the restoration. ![undercuts-region-1](https://help.3disc.com/hs-fs/hubfs/undercuts-region-1.png?width=670&height=392&name=undercuts-region-1.png) #### Selecting a Region To Select a **Region** for which to calculate undercuts: - Click on the **Brush** icon of the **Region selector | Navigation** toggle button. - Select the **Brush Size** in the expanded **Undercuts** menu. - Using the **Brush** tool, ***Left-Click+Drag*** to select the **Region** of interest. [NOTE: You can select multiple regions by repeating the same procedure for another region.](https://docs.3disccloud.com/scan/live-scan-tools.html#using-the-undercuts-tool) [To select multiple regions, select the regions *before* launching the *Undercuts* calculation.![idea](https://help.3disc.com/hs-fs/hubfs/idea.png?width=46&height=46&name=idea.png)](https://docs.3disccloud.com/scan/live-scan-tools.html#selecting-a-region) ![undercuts-region-2](https://help.3disc.com/hs-fs/hubfs/undercuts-region-2.png?width=670&height=399&name=undercuts-region-2.png) #### Undercuts: User View The User View option enables you to choose the insertion axis, used to calculate undercuts on the dental arch. - Using the **Navigation tool**, ***Left-Click+Drag*** the 3D digital model to the desired axis of insertion for the restoration. - Click on the **User View** button. The Undercuts tool will detect and calculate undercuts based on the chosen insertion axis. ![undercuts-region-3](https://help.3disc.com/hs-fs/hubfs/undercuts-region-3.png?width=633&height=348&name=undercuts-region-3.png) #### Undercuts: Auto-Detect To auto-detect undercuts based on the ideal angle for the arch: - Click on the **Auto-Detect** button. The Undercut tool will automatically calculate the undercuts for an optimal insertion axis. Undercut areas of the scan model are indicated using a color-coded gradient. - [Computer Requirements](https://help.3disc.com/knowledge/computer-requirements?hsLang=en) - [OVO3 | Getting started](https://help.3disc.com/knowledge/ovo3-getting-started?hsLang=en) - [OVO3 | Patients & Cases](https://help.3disc.com/knowledge/ovo3-patients-cases?hsLang=en) - [OVO3 | Scanning](https://help.3disc.com/knowledge/ovo3-scanning?hsLang=en) - [OVO3 | All Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#main-content) - [Scan Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#scan-tools) - [Live Scan Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#live-scan-tools) - [Bite Aligment Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#bite-aligment-tools) - [Case Review Tools](https://help.3disc.com/knowledge/ovo3-all-tools?hsLang=en#case-review-tools) - [OVO3 | 3DiscCloud](https://help.3disc.com/knowledge/ovo3-3disccloud?hsLang=en) - [OVO3 | 3DiscClinic Settings](https://help.3disc.com/knowledge/ovo3-3discclinic-settings?hsLang=en#main-content) - [Case/Database Import - Export](https://help.3disc.com/knowledge/ovo3-3discclinic-settings?hsLang=en#case-database-import-export) - [OVO3 | Support](https://help.3disc.com/knowledge/ovo3-support?hsLang=en) - [Default HubSpot Blog](https://3disc-1.hubspotpagebuilder.com/blog) [![](https://help.3disc.com/hs-fs/hubfs/3DISC_Logo_RGB_tiny.png?width=250&height=64&name=3DISC_Logo_RGB_tiny.png)](http://3DISC.com) [mailto:email@email.com](mailto:email@email.com) Copyright © 2026, 3DISC