Desquamative Gingivitis in the Context of Autoimmune Bullous Dermatoses and Lichen Planus-Challenges in the Diagnosis and Treatment.

Desquamative gingivitis (DG) is a clinical term that describes erythema, desquamation and erosions of the gingiva, of various etiologies. Although the clinical aspect is not specific for a certain disease, an accurate diagnosis of the underlying disorder is necessary because the disease course, prognosis and treatment vary according to the cause. DG may inflict significant oral discomfort, which is why patients typically present to the dentist for a first consultation, rendering it important for these specialists to be informed about this condition.

The Effect of Acknowledged and Novel Anti-Rheumatic Therapies on Periodontal Tissues-A Narrative Review.

Rheumatoid arthritis (RA) and periodontal disease (PD) are chronic complex inflammatory diseases with several common susceptibility factors, especially genetic and environmental risk factors. Although both disorders involve a perturbation of the immune-inflammatory response at multiple levels, one major difference between the two is the different locations in which they develop. RA is triggered by an exaggerated autoimmune response that targets joints, while periodontal disease occurs as a consequence of the subgingival periodontopathogenic microbiota.

Peripheral nerve allograft, a reconstructive solution: outcomes and benefits.

Every year millions of individuals worldwide require complex reconstructive procedures as a result of various traumatic events. Recent success in composite tissue allotransplant, has shown that allografts generally present an enormous potential in reconstructive surgery. Peripheral nerve allograft represents a relatively new research field, therefore many aspects are still to be clarified.

Schwann cell cultures: recent advances and novel approaches to the reconstruction of peripheral nerve defects.

Current techniques in tissue engineering may offer a choice regarding the reconstructive strategies of peripheral nerves. Schwann cell cultures are to be considered an appropriate option in the reconstruction of peripheral nerve and spinal cord large defects. Schwann cells availability from peripheral nerve autografts creates a great benefit concerning their usefulness in the nervous autogenic transplantation.

Organic-inorganic Hybrid Gels of Diol-TEOS Type. Synthesis and Study on the Chemical Interaction.

Hybrid inorganic-organic materials, silica - diol, were prepared by the sol-gel process from mixtures of tetraethyl orthosilicate (TEOS) and two diols (1,2-propanediol and 1,4-butanediol), using different molar ratios TEOS: diol, in acidic catalysis. The resulted materials were studied by thermal analysis, FT-IR spectroscopy, 29Si-NMR and nitrogen adsorption measurements. The thermal analysis of the gels, in air and nitrogen, has clearly evidenced the chemical bonding of the studied diols with the Si-OH groups resulting from the hydrolysis of TEOS, forming hybrid gels.