Bilateral dens invaginatus in the mandibular premolar region.

Dens invaginatus (dens in dente, DI) is a rare developmental anomaly resulting from invagination of a portion of the crown rare. It is an important dental anomaly due to the possible pulpal involvement. DI can be detected clinically in a tooth presenting unusual crown morphology or having deep foramen coaceum. Also, clinically, non-suspected affected teeth are commonly diagnosed as an incidental radiographic finding. Presence of DI in the mandibular premolar teeth is unusual. Aims is to introduce a case of bilateral occurrence of DI in mandibular first premolar teeth. A 33- year-old man was referred to our clinic with a chief complaint of severe pain in his lower third molar tooth. Radiographic examination revealed bilateral DI (single at the left, double at the right) in mandibular first premolar teeth. The teeth were restored with fissure sealant. Although bilateral appearance of DI is a frequent situation, mandibular occurrence is very rare. Our review of the literature reveals just nine cases of DI, and only one of them is in a premolar tooth.

Denture-related hyperplasia: a clinical study of a turkish population group

Inflammatory fibrous hyperplasia (epulis fissuratum) (IFH) and inflammatory papillary hyperplasia (IPH) are oral mucosal diseases caused by ill-fitting denture wearing. A study was carried out on a group of Turkish people consisted of 131 female and 39 male complete denture wearers (n= 170) distributed in two age groups (30-60 and 60-80 years old). The analysis of data collected from patients showed that while the incidence of IFH was higher in women than in men, the incidence of IPH was similar. Most lesions were found in the 30-60 year-old group. The incidence of lesions increased as the denture wearing period increased. Soft tissue growth was the main complaint of the patients with IFH and IPH. In the maxilla, the incidence of IFH was higher than IPH. There was also a significant difference between the distribution of the lesion types in the jaws. There were a larger number of lesions in the maxilla compared to the mandible and most IFH lesions were located in the anterior region of the jaws.

A hiperplasia fibrosa inflamatória (epulis fissuratum) (HFI) e a hiperplasia papilar inflamatória (HPI) são doenças da mucosa causadas por próteses mal-ajustadas. Foi feito um estudo num grupo de pessoas, na Turquia, composto por 131 mulheres e 39 homens (n=170) usuários de próteses totais. O grupo foi subdividido em duas faixas etárias (30 a 60 e 60 a 80 anos). A análise dos dados coletados dos pacientes mostrou que a incidência de HFI foi mais alta entre as mulheres, ao passo que a incidência de HPI foi similar em ambos os sexos. A maioria das lesões foi encontrada no grupo indivíduos de 30 a 60 anos. A incidência das lesões aumentou com o tempo de uso da prótese. A queixa principal dos pacientes com HFI e HPI foi o aparecimento de tecidos moles. A incidência de HFI foi maior do que HPI, na maxila. Houve também diferença significativa de distribuição dos tipos de lesão nos maxilares. Houve maior número de lesões na maxila, em comparação com a mandíbula e a maioria das lesões HFI estava localizada na parte anterior dos maxilares.