Biomedical subjects

M Tedaldi

Publications and source records attributed to M Tedaldi.

4 recordsLinked to original sources

PubMed2007

Rigid external fixation and condylar remodeling.

Condylar fractures, instead of other mandibular fractures, play a primary importance role because their high incidence and the historic controversy existent in literature regarding their treatment. Recent studies prove that conservative treatment of condylar fractures, although not determining perfect alignment of the fractured segments, leads to a series of histologic and morphologic healing processes ending with consolidation of the fracture and functional recovery of the TMJ (temporo-mandibular joint). In this study, we observed long-term results of 2 cases of bicondylar fracture treated with surgical reduction and rigid external fixation. Rx orthopantomography control 1 year after surgery showed condylar remodeling bilaterally with good functional recovery. Our school affirms that semirigid fixation system allows optimal function between the articular head and the glenoid fossa, with good tridimensional repositioning of the fractured segments.

Adult↗

PubMed2004

Ability of restorative and fluoride releasing materials to prevent marginal dentine demineralization.

The study aimed to define the in vitro secondary caries inhibiting potential of restorative materials currently used in dental practice. Class V restorations were prepared in extracted human third molars and immersed in a demineralizing solution (lactic acid, pH 4.5) at 37 degrees C for 2 days to simulate secondary caries formation. The bonding and the restorative systems tested in the study were: Scotchbond 1+Z 250 (Group A), Scotchbond 1+F 2000 (Group B), ABF+APX (Group C), ABF+F2000 (Group D). Perimarginal dentine, immediately close to the margin of the restoration, and exposed dentine, at approximately 0.5 mm from the margins of the restoration, after exposure to the acid solution, were investigated; protected dentine, at approximately 4 mm from the margin in a varnish-covered area, was analysed as control. Polarized light microscopy and contact transverse microradiography (TMR) were employed. The output parameters were lesion shape and size (depth in microm) of the exposed dentine, dentine mineral volume%, and integrated mineral loss (Delta Z, in %volmicrom) of the lesions. Compomers (Groups B and D) showed a thinner demineralization of the outer lesions, a less demineralization along the perimarginal dentine (inner lesion) and more caries inhibition zones or CIZs (Delta Z positive values) compared to composites (Groups A and C). In conclusion, Groups B and D materials seemed to partially counteract the marginal demineralization induced by an acid solution and favourably influence the formation of CIZs along the restorations. On the contrary, composites did not show a protective effect, probably due to an insufficient marginal seal and the lack of fluoride release.

Absorptiometry, Photon↗

PubMed2000

Nephrotic syndrome and plasmapheresis.

We studied 15 patients suffering from nephrotic syndrome (NS) in bioptically-accertained primary and secondary glomerulopathies responding poorly to the common pharmacological treatment. They were monitored for one year by assessing their immunological and kidney functionality parameters, especially proteinuria. The patients underwent 3 apheretic sittings using the cascade double-filtration technique. After the third apheretic sitting the patients received metilprednisolone 300 mg/m2. This therapy was repeated every month for 6 months. At the end of the apheretic cycle it was shown that all patients had responded well to the therapy with a dramatic decrease in proteinuria, maintenance and/or recuperation of kidney functionality and improvement of lipidic asset; these data remained unchanged over time. Considering our preliminary results, we believe that therapeutic apheresis has a precise function in refractory nephrotic syndrome and, in particular, we propose the use of the cascade double-filtration technique.

Adult↗

PubMedDate not supplied

[Plasmapheresis combined with pharmacology in the treatment of lupus nephritis: a new therapeutic protocol].

Systemic Lupus Erythematosus (SLE) is a pathology of unknown cause, characterized by tissue and cellular damage, secondary to production of autoantibodies and to deposition of immunocomplexes. Lupus nephritis is one of the most common complications of SLE. Our purpose is to propose a therapeutic protocol for patients suffering from Lupus nephritis. This consists of Plasmapheresis associated with pharmacological therapy so that dosage of immunosuppressors can be reduced and consequently also the side effects of the pharmacological therapy.

Adolescent↗