Tandläkarnas förskrivning av antibiotika har ökat under senare år. Strama (Samverkan mot antibiotikaresistens) redovisar situationer där antibiotikaprofylax kan göra nytta och tillfällen då det inte har någon bevisad effekt.
During the curing shrinkage of adhesively bonded resin composites tensile stresses develop, which are exerted back onto the cavity walls. the extent of the stress determines whether part of the tooth structure will fracture. Unfortunately, shrinkage stress values are not available for the general practitioner. Recommendations are therefore made for the use of low shrinkage and/or low shrinkage stress resin ccomposites for different cavity types. In the current study, thirty resin composites were evaluated for shrinkage and shrinkage stress. The majorityof the composites compplied with the hypothesis that a low shrinkage is accompanied with a high shrinkage stress and visa-versa. Some composite materials showed both a low shrinkage and a low shrinkage stress and are thus proposed to give the least problems with respect to marginal seal and enamel fracture.
Ny forskning visar att skelettet inte bara regleras av hormoner utan också producerar hormoner. Dessa hormoner påverkar fettceller, insulinproducerande celler i bukspottkörteln och njurens fosfatreglering.
Hur ombyggnaden av benvävnaden i käkar och skelett fungerar och hur processen påverkas vid sjukdomstillstånd som parodontit, benskörhet, tumörer med mera är föremål för omfattande forskning i Umeå.
Osteoporos drabbar många individer i hela världen. Från att ha varit en sjukdom utan farmakologisk behandling har ett flertal läkemedel nu utvecklats och fler är på väg. Här beskrivs behandlingsprinciperna för de läkemedel som i dag används vid osteoporos.
To investigate the present-day situation concerning materials and methods used in endodontic treatment by Swedish dentists a postal questionnaire with 27 multiple choice questions was sent to 287 dentists in Sweden. General information about the dentists was requested as well as questions concerning methods and materials used in endodontic treatment and the frequency of different treatment methods. The response rate was 85 percent. The dentists used a considerable amount of their working hours to perform endodontic treatment. Root canal treatment was performed more frequently than pulpectomy. Rubber dam was not used as a routine during emergency treatments by the majority of the dentists (70 percent), the use increased during the continued treatment but still 30 percent did not use rubber dam routinely. Root canal preparation was commonly done using a combination of manual and rotary instruments. As canal irrigant sodium hypochlorite in a low concentration (0.5 percent) was used by a majority (73 percent). Calcium hydroxide paste was used as interappointment dressing by almost all. Nearly all of the clinicians used gutta-percha as root filling material. The majority (66 percent) combined gutta-percha with sealer while 43 percent combined it with rosin chloroform (hg). Conclusion: The results of this study indicate that the Swedish dentists use acceptable materials and methods in endodontic treatment. To further enhance the prognosis a strict aseptic technique should be applied by routinely use of rubber dam.
Plastfyllningarnas hållbarhet är multifaktoriellt betingat, där operatörens skicklighet, patienten, lokalisation och storlek på fyllningen samt fyllnadsmaterial och bindningssystem är viktiga faktorer.