Dental anomalies: abnormalities in number, seat location, volume, shape, development, structure. Disorders of the eruption dysodontiasis of the third molar. Etiology of dental caries, pulpopatie, odontogenic infections, parodontitis, apical granuloma, radicular cysts, odontogenic cysts. Abscesses and phlegmon, osteitis, osteomyelitis, sinusitis, bucco-sinus communications. Maxillary odontogenic neoformations . Periodontal disease. Stomatopatie (cheilitis, glossopatie, inflammatory stomatopatie, infectious stomatopatie (viral, batterical, mycotic) inflammatory pseudo tumor. Precancerous lesions. Precancerous conditions. Oral cance. Disorders of the salivary glands. r