We come across persistent deciduous incisors often. Persistent teeth are teeth that are loose, but will not come out. If they are loose, it is recommended to remove them as soon as possible. At a young age, the final incisors can then, still migrate to their proper position causing diastema to still close in time, and avoid any problems. Caps are the remains of the deciduous teeth. Most horses will lose these caps without human intervention. However, it may be possible that a cap becomes lose and will cause trouble. This can lead to a horse refusing to eat or showing clear signs of pain. Often these patients can easily be assisted with a simple dental treatment.