In most of the patients with chronic hepatitis B and C, the disease progression to liver cirrhosis and a liver transplantation is necessary. Untreated oral diseases (including dental problems) can lead to infections and sepsis and may cause many complications in transplanted patients and a prerequisite dental evaluation is usually recommended for potential organ transplant candidates.Our aim was to determine the dental status in patients with chronic liver disease, knowing that liver transplant will be a life choices

The comparison of these different strategies for endodontic treatment showed that hypochlorite, followed by the chlorhexidine irrigant in our experimental conditions, gave the most satisfactory results against the formation of bacterial biofilms in the root canals.

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Objectives: A multitude of acrylic monomers is used in dentistry. Formaldehyde is a ubiquitous chemical agent, which is an ingredient of some dental materials and may be released from methacrylate-based composites. The purpose of the study is to evaluate the incidence and the risk of cross-sensitization to some methacrylic monomers (methylmethacrylate -MMA, triethyleneglycol dimethacrylate -TEGDMA, ethyleneglycol dimethacrylate -EGDMA, 2,2-bis-[4-(2-hydroxy-3-methacrylo-xypropoxy)phenyl]-propane -Bis-GMA, 2-hydroxy-ethyl methacrylate 2-HEMA, and tetrahydrofurfuryl methacrylate) and formaldehyde in students of dentistry, dental professionals and dental patients. Material and Methods: A total of 139 participants were included in the study, i.e., occupationally exposed dental professionals, students of the 3rd, 4th and 6th year of dental medicine, and occupationally unexposed dental patients. They were patch-tested with methacrylic monomers and formaldehyde. The results were subjected to statistical analysis (p < 0.05). Results: From the allergic to formaldehyde students of the 3rd and 4th year of dental medicine, 46.2% were also sensitized to MMA. Among the group of patients, the incidence of cross-sensitization to formaldehyde and methacrylic monomers was as follows: to TEGDMA -20.6%, to ethyleneglycol dimethacrylate -20.7%, to 2-HEMA -20.7% and to tetrahydrofurfuryl methacrylate -24.1%. Contact allergy to MMA was diagnosed among 22.7%, and to TEGDMA -among 27.1% of the students of the 3rd and 4th year of dental medicine. In the group of occupationally unexposed dental patients the prevalence of contact allergy to ethyleneglycol dimethacrylate was 20.7%, to Bis-GMA -27.6%, to 2-HEMA -44.9% and to tetrahydrofurfuryl methacrylate -38.0%. Conclusions:The students of the 3rd and 4th year of dental medicine could be outlined as a group at risk of sensitization to MMA and TEGDMA and of cross-sensitization to MMA and formaldehyde. Probably, due to the ubiquitous occurrence of formaldehyde and the wide use of composite resins and bonding agents containing TEGDMA, ethyleneglycol dimethacrylate, 2-HEMA and tetrahydrofurfuryl methacrylate in dentistry, the group of dental patients could be at risk of cross-sensitization to formaldehyde and some methacrylic monomers.

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Background: