{Reference Type}: Case Reports {Title}: Developing odontoma arising from calcifying odontogenic cyst: A case report. {Author}: Moradzadeh Khiavi M;Mahdavi N;Awudu A; {Journal}: Clin Case Rep {Volume}: 9 {Issue}: 11 {Year}: Nov 2021 暂无{DOI}: 10.1002/ccr3.5011 {Abstract}: Developing odontoma is a rare mixed odontogenic tumor that can arise with other odontogenic lesions. The association of COC with ameloblastic fibro-odontoma is extremely rare. We report an extremely rare case of developing odontoma arising from a calcifying odontogenic cyst in a 17-year-old girl.