Within the limitations of this research, the results indicate higher proliferative activity in smoking patients compared to nonsmoking patients, even in the absence of clinical lesions.

IntroductionIncontinentia pigmenti or Bloch-Sulzberger syndrome is a rare X-linked dominant disease that mainly affects the skin, eyes, hair, central nervous system and teeth. The disease is predominant among women. Although dermatologic manifestations are among the most important aspects for the diagnosis of the syndrome, they are less damaging to the patient and do not require treatment. However, oral involvement characterized by hypodontia of deciduous and permanent teeth is important for the diagnosis and treatment of the patient.Case presentationWe report the case of a 3-year-old girl with ophthalmologic and neurologic disturbances, cutaneous manifestations and hypodontia. Since the patient did not present more damaging manifestations such as neurologic and/or ophthalmologic problems, her most severe complications were related to dental anomalies. The importance of integrated dental treatment, which combines pediatric dentistry, orthodontics and conventional prosthesis, is emphasized.ConclusionHypodontia is a frequent finding in incontinentia pigmenti, and dentists should be aware of this condition in order to help with the diagnosis.

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Atualmente, muito tem se discutido sobre a natureza pré-maligna do líquen plano oral. Embora novas linhas de pesquisa tenham sido desenvolvidas nos últimos anos, estamos longe de alcançar um consenso. Se por um lado, estudos recentes afastam a possibilidade de transformação do líquen plano oral em carcinoma epidermóide, por outro, não são poucos os casos relatados na literatura que enfatizam esse potencial. O presente trabalho tem por objetivo traçar um perfil com¬parativo entre os casos de líquen plano e o carcinoma epidermóide em mucosa bucal dos arquivos de Patologia Cirúrgica da Disciplina de Patologia Bucal da Faculdade de Odontologia de São José dos Campos - UNESP, na tentativa de se estabelecer uma possível correlação entre ambos.