Suddenly enlarged gaps in your incisors can be the result of supernumerary teeth or periodontitis. Wider gaps in childhood are commonly associated with supernumerary teeth. Normal teeth have one or two extra teeth buried between them in the jawbone. As the extra teeth erupt squeezing the normal teeth, the gap between the teeth can suddenly become wider. The presence of supernumerary teeth can also lead to the resorption of normal teeth and must be removed promptly. The presence of tartar or soft tartar around the teeth, long-term stimulation caused by gum recession alveolar bone resorption, the teeth become longer gap between the teeth become larger, is a typical symptom of periodontitis, must be timely periodontal treatment, so as not to cause tooth loss. Therefore, the incisor teeth become larger than the above situation, the specific reasons can be to the dentist to check.