The arrow points to a sore spot, actually an epulis fissuratum in the labial sulcus caused by his pre-existing lower denture. This patient. a 60 year old male had great difficulty with his lower denture. The treatment plan called for the placement of four implants in the anterior mandible and a ZAAG attachment overdenture. You can look at an all text synopsis of this patient treatment or click the next button below to see more clinical photos.