COVER 3_4_2008_inglese:COVER 2_2008_separata

The correct planification of the treatment is the most important element for a success full implant therapy, conventionally bused on the information gathered through models and x-ray images. Thus it is necessary to evaluate carefully the bone quality before the implant insertion to identify the sites on patients potentially at risk and to optimize the implant stability and healing time. Among the various classifications of bone quality, the most utilized is that of Lecholm and Zarb (1985) consisting of 4 levels of bone density. On the upper jaw, as in our clinical case, the bone density is much reduced in respect to the lower jaw with consequently minor possibility to ensure an adeguate primal stability of the fixture, hence o fan immediate safe stress load. And lastly as noted (6) in case of acute infection, there must be a delay or postponement of the implant positioning from extraction, avoiding the use AESTHETIC-FUNCTIONAL REHABILITATION THROUGH SINGLE RESTORATIONS: IMMEDIATE LOAD