fusion is a rare occurrence in molar teeth. the purpose of this rare case presentation is to describe the nonsurgical endodontic treatment of maxillary molar. a 28-year-old patient was referred for endodontic treatment of her chronic apical abscess of right maxillary second molar. in the clinical examination, a sinus tract adjacent to involved tooth and a small crown of supernumerary tooth fuse...

background: patients which have diagnosed with a cancer, have a life time risk for developing another de novo malignancy depending on various inherited, environmental and iatrogenic risk factors. cancer victims could survive longer due to settling treatment modalities, and then would likely develop a new metachronous malignancy. this article aims to report our observed trend of increasing, in p...