If you’re bothered by crooked or crowded top teeth but your bottom teeth look perfectly aligned, you may wonder whether Invisalign can focus treatment on only the upper arch. Single-arch treatment is possible, and for some patients it can be an effective solution. However, it requires careful planning, ongoing monitoring, and a full understanding of the risks involved. Before deciding, it’s important to know why dentists are cautious with this approach and how working closely with your provider helps ensure a safe, successful, and cost effective outcome.