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PubMed2001

[Biology of root resorption process in deciduous teeth. Review of the literature].

Aim of this paper, is to examine, with a review of the literature the different aspects of physiological process of root resorption of deciduous teeth. The process of development of mouth and teeth and their structure is also described. Studies made during the last period, in most part by Japanese authors, improved our knowledge about the process of root resorption of deciduous teeth, even if many aspects are still unknown. The involvement of the pulp and the periodontal ligament and the presence of enzimatic activity and immunologic cells have been confirmed; all these elements seem to have a definite role in the process of root resorption of the deciduous teeth.

Humans↗
PubMed1981

The dentition in the osteogenesis imperfecta syndromes.

The deciduous and permanent teeth in some patients with osteogenesis imperfecta syndromes are blue or brown and opalescent. As shown by radiologic examination, the pulp chambers and root canals are completely or partially obliterated by abnormal dentin. The junctions between the crowns and roots are more constricted than normal. Deciduous opalescent teeth lose their enamel readily and wear more easily than normal. Unusual wear does not occur as frequently in permanent opalescent teeth as in deciduous teeth. No relationship has been shown between the number of fractures or deformity and the degree to which the teeth are affected. In contrast, other patients with osteogenesis imperfecta have normal teeth. These clinical differences in the dentitions support the concept of genetic heterogeneity is osteogenesis imperfecta and provide information useful in genetic counseling. The differential diagnosis of opalescent teeth in osteogenesis imperfecta is not difficult provided that detailed clinical and radiologic examinations of the dentition are performed. Patients with osteogenesis imperfecta and opalescent teeth should be evaluated as soon as the deciduous teeth erupt, so that an attempt can be made to prevent loss of tooth structure. However, methods of dental care in osteogenesis imperfecta are not well delineated and deserve further study.

Amelogenesis Imperfecta↗