Arch expansion: Creating room for a healthier smile at rootz dental care navalur Arch expansion is aimed at widening the dental arch to create more space for proper alignment of teeth. At rootz dental care navalur , arch expansion is commonly used in orthodontics to improve both function & aesthetics. we prioritise each patients needs & customise treatment according to it at Rootz dental care navalur. Benefits of arch expansion : Arch expansion improves alignment of teeth, enhances facial symmetry & aesthetics, prevents or reduces the need for extraction