--- title: How Long Does Invisalign Take? | Invisalign-Accredited Dentist | Video description: Dr Tiffany Tan explains what affects how long Invisalign takes, from bite severity to daily wear habits, and what patients can do to stay on track. image: https://www.dentaldesigns.com.sg/hubfs/vkgC1Vr-dAY-HD.jpg --- ![arrow_icon](https://www.dentaldesigns.com.sg/hubfs/arrow_icon.svg) [![phone_icon](https://www.dentaldesigns.com.sg/hubfs/phone_icon.svg) +65 62218284 ](tel:+65%2062218284) [![calendra_icon](https://www.dentaldesigns.com.sg/hubfs/calendra_icon.svg) Book An Appointment ](https://www.dentaldesigns.com.sg/en-sg/contact-us) [![cib_whatsapp](https://www.dentaldesigns.com.sg/hubfs/cib_whatsapp.svg) WhatsApp ](https://wa.me/6582009092) # Your Invisalign Could Take Longer | Here's Why! Dr Tiffany Tan walks you through what determines your Invisalign treatment timeline, from the type and severity of your bite condition, to how consistently you wear your aligners, and why these factors matter more than many patients expect. ## About The Video In this video, Dr Tiffany Tan from Dental Designs Clinic, explains what affects how long Invisalign treatment takes and what patients can do to stay on track. She covers how different bite conditions, including crowding, overbite, underbite, and crossbite, move teeth at different rates, and why the severity of your case is one of the key factors in your total treatment time. She then focuses on patient compliance as one of the often underestimated factors in treatment duration. She explains that aligners must be worn for at least 20 hours a day to move teeth effectively, and that every hour they are left out, teeth begin shifting back toward their original position. This gradual reversal can significantly extend treatment timelines and may require additional aligner trays to correct. Dr Tiffany Tan explains how long Invisalign treatment takes, focusing on the key factors that influence treatment duration in orthodontic care. She explains that while the average treatment runs between one and two years, the timeline varies depending on the type and severity of the bite condition being corrected. Crowded teeth, overbites, underbites, and crossbites each respond differently to aligner pressure, and more complex cases generally require longer treatment periods. She then highlights patient compliance as one of the most important factors affecting treatment progress. Wearing aligners for at least 20 hours a day is essential for consistent tooth movement. Missed wear time can translate into additional time at the end of treatment, or in some cases, the need for extra aligner sets to complete the planned movement. 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