1,721,161 research outputs found
Tecniche di isolamento, proliferazione, caratterizzazione, differenziamento osteogenico di cellule staminali
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Administration of autogenous vaccine in patients with chronic bacterial osteomyelitis.
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Nuove prospettive nella terapia chirurgica parodontale: acido ialuronico esterificato e osso autologo
No full textCytogenetic genotoxic investigation in peripheral blood lymphocytes of subjects with dental composite restorative filling materials
No full textDental composite resins are biomaterials commonly used to aesthetically restore the structure and function of teeth impaired by caries, erosion, or fracture. Residual monomers released from resin restorations as a result of incomplete polymerization processes interact with living oral tissues. The objective of this study was to evaluate the genotoxicity of a common dental composite material (Enamel Plus-HFO), in subjects with average 13 filled teeth with the same material, compared to a control group (subjects having neither amalgam nor composite resin fillings). Genotoxicity assessment of composite materials was carried out in vitro in human peripheral blood leukocytes using sister-chromatid exchange (SCE) and chromosomal aberrations (CA) cytogenetic tests. The results of correlation and multiple regression analyses confirmed the absence of a relationship between SCE/cell, high frequency of SCE(HFC) or CA frequencies and exposure to dental composite materials. These results indicate that composite resins used for dental restorations differ extensively in vivo in their cytotoxic and genotoxic potential and in their ability to affect chromosomal integrity, cell-cycle progression, DNA replication and repair
Esterified Hyaluronic Acid and Autologous Bone in the Surgical Correction of the Infra-Bone Defects
No full textWe study the osteoinductive effect of the hyaluronic acid (HA) by using an esterified
low-molecular HA preparation (EHA) as a coadjuvant in the grafting processes to produce
bone-like tissue in the presence of employing autologous bone obtained from intra-oral sites,
to treat infra-bone defects without covering membrane.
We report on 9 patients with periodontal defects treated by EHA and autologous grafting (4
males and 5 females, all non smokers, with a mean age of 43,8 years for females, 40,0 years
for males and 42 years for all the group, in good health) with a mean depth of 8.3 mm of the
infra-bone defects, as revealed by intra-operative probes. Data were obtained at baseline
before treatment and after 10 days, and subsequently at 6,9, and 24 months after treatment.
Clinical results showed a mean gain hi clinical attachment (gCAL) of 2.6mm of the treated sites, confirmed
by radiographic evaluation. Such results suggest that autologous bone combined with EHA
seems to have good capabilities in accelerating new bone formation in the infra-bone defects
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