The dentigerous cyst is one of the most common Odontogenic cysts involving the jaws, usually associated with the crown of a third molar or unerupted canine being in most unilateral lesions. The impaction of the incisor lateral maxillary permanent associated with dentigerous cyst is a rare entity and even more if it involves continuous dental crowns. Generally, affect between the second and third decade of life, its appearance in the first decade is still rare, representing only 9.1% of cases between 6 and 7 years. The purpose of this article is to describe the presence of impacted teeth associated with a large dentigerous cyst in the right jaw of an eight-year-old child with clinical and histopathological approach. Thorough evaluation of clinical history based on clinical, radiographic, and histopathological findings helps specialists to correctly diagnose and identify the etiological factors that lead to appropriate treatment.

Clear cell odontogenic carcinoma (CCOC) is a uncommon aggressive neoplasm of variable performance, which is primarily located in the mandibular anterior region, to a lesser extent in the maxilla, with prevalence in women between the fifth and seventh decades of life. Histologically it is constituted by networks of cells with clear cytoplasm mixed with cells containing eosinophilic cytoplasm rich in glycogen, surrounded by bands of collagen, you can make the local or distant metastases, highly recurrent, so it should include long-term follow-up patient and differentiated from other conditions with clear cell. The case of a male patient aged 52, with a mixed injury unusual presentation covering maxilla, zygomatic, orbital and right nasal cavity, without involvement of regional lymph nodes, no apparent metastases is reported.