Orthodontic treatment not only creates a great smile, but also contributes to the health and function of your teeth. A range of problems result from untreated malocclusions. Crowded and overlapping teeth are more difficult to keep clean, and inadequate cleaning is a major contributing factor to tooth decay and gum disease. Protruding teeth are more susceptible to damage such as fractures and chipping. Malocclusions can also lead to uneven tooth wear, jaw joint problems, unfavourable jaw growth, and minor speech impediments.