Regional odontodysplasia is an uncommon dental anomaly that is not hereditary and has a still unknown etiology. The affected tissues are enamel and dentin, the primary teeth are affected, and sometimes in the permanent dentition of the same individual. This lesion may be confused with other lesions such as odontoma or teeth with another type of anomaly. The objective is to report a case of regional odontodysplasia in the deciduous and permanent dentition of a child, as well as to present the different diagnostic tools. The affected teeth showed clinical examination, such as hypoplastic teeth with a yellow-brown coloration. A panoramic radiograph and periapical radiographs, as well as an excisional biopsy, were essential to obtain a correct diagnosis, so as to be able to offer an adequate conduct for the preservation and predictability of the different types of dental rehabilitation...

Objective: Report two cases of Odontogenic Maxillary Sinusitis (OMS), diagnosed exclusively by Cone Bean Computed Tomography (CBCT). Case Report 1: A 48 years-old woman referred diffuse pain across the face and upper left first molar (ULFM) with carious lesion. The panoramic X-Ray showed a periapical lesion with delimited limits in the ULFM and opacification of the left maxillary sinus (OPMS). Only in CBCT there were relationship between ULFM periapical lesion and the maxillary sinus through cortical rupture of the maxillary sinus floor, thickening the maxillary sinus mucosa (TMSM). The OMS was diagnosed as a periapical cyst invol- ving the ULFM. She was referred to endodontic treatment. Case Report 2: A 33 years-old man referred diffuse pain though the face and in upper right first molar (URFM). The panoramic X-Ray showed a bone rarefaction without limits and vertical bone loss ar...