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Biomedical subjects

M P Marie

Publications and source records attributed to M P Marie.

10 recordsLinked to original sources
PubMed1986

[Clinical and surgical aspects of cervicofacial lymphangiomas and hemolymphangiomas].

After an embryological review, the author describes the macroscopic and surgical aspects of cervicofacial lymphangiomas and hemolymphangiomas. Therapeutic difficulties are variable and are discussed with regard to different clinical forms. There are all degrees between benign forms which are easy to treat and major forms which raise difficult therapeutic problems because of their extent. These severe forms may threaten the vital prognosis by virtue of their own complications but also because of their excision. Lymphangiomas, or rather hemolymphangiomas, are a complex vascular malformation diagnosed most often shortly after birth, the treatment and surgical excision of which are often delicate, possibly influencing not only the functional prognosis but also the vital prognosis.

Adolescent↗
PubMed1978

[A case of epidermal cyst of the maxilla (author's transl)].

In the light of one case of epidermal cyst of the maxilla, the authors emphasize the operative difficulties and the need, in the presence of a severe abnormality of the pedicles of the upper wisdom teeth, to perform a careful tomographic examination of the head.

Adult↗
PubMed1978

[A new case of basal cell naevomatosis (author's transl)].

The authors, in the light of a new case of naevomatosis, review the description of the disease, emphasising its symptoms and signs, and inheritance, drawing attention to the need for surveillance of such patients in view of the risk of malignant change in the naevi. The other signs of the disease must be sought following the discovery of multiple epidermal cysts of the maxilla and mandible.

Adult↗
PubMed1977

[Superficial structure of dental cement as shown by acid etching and scanning electron microscope].

The superficial layer of the cement is made up of a mineralised structure in which are included organic fibres which would seem to serve as the intracemental anchorage of Sharpey's fibre. The appearance seen on sweep electron microscopy after acid demineralisation confirm those seen using the electron microscope by Selvig. These fibres included in the cement have a variable diameter ranging from a few microns and 45 microns on our pictures (10 microns according to Selvig). They consist of a numerous fibrils with a diameter of the order of 0.3 microns. In the cement these fibers are parallel to the surface of the tooth, this confirming Selvig's finding. Finally, our observations show that, in the superficial part of the cement, these fibres form a markedly flattened three-dimensional network.

Acid Etching, Dental↗
PubMed1977

[Acid application on dental tartar as preliminary treatment before mechanical scaling].

The action of the preparation studied, containing 20% hydrochloric acid in an alcohol-chloroform medium: 1) affected both white tartar as well as the submucosal tartar, progressively replacing the phosphorus radicles of tricalcium phosphate by CL ions, transforming the insoluble tricalcium phosphate into soluble calcium chloride; 2) was practically complete in 2 minutes; 3) was more rapid on tartar than on enamel or even cement; 4) did not appear to alter the superficial structure of the tooth in 4 minutes whilst, for the same period of time, the superficial structure of the cement was deeply attacked with 50% preparations of citric acid or phosphoric acid; 5) in our trials, carried out after 4 minutes treatment, caused the tartar to undergo a relatively superficial but adequate chemical action to facilitate its removel, whilst leaving the underlying hard tissue, enamel or cement, unharmed. It would thus appear that such a substance may be used for the preparation and speeding of mechanical descaling.

Calcium Phosphates↗