Effekter av ökad transfer time limit för tandimplantat.

Sammanfattning: Nobel Biocare is one of the world’s leading companies that produce dental implants. This thesis was executed at the part of the company located in Karlskoga, Sweden.To be sure that the implants manufactured at Nobel Biocare will heal as good as possible when being implanted in a patient, the implant has to go through a coating process where the implants, after a few preparing steps, are going through a salt treatment. This salt treatment will in the end simplify the healing process for the patient. Between every process there is a time limit for how long the implants may rest, a so-called transfer time limit. This time is too short and leads to unnecessary cassations.The purpose of the thesis was to investigate what will happen if the transfer time limit of today increases from eight hours to sixty hours. What will be crucial for the results of the thesis is wether any contamination will occur on the surface of the dental implant or not.To investigate if any possible contamination occurs during the longer transfer time limit the implants were, after a coating process, examined with the help of a laboratry in Great Britain, where XPS analysis of different materials are performed.This thesis has the limitations of examining only the product TiUltra and has only investigated the longer transfer time limit during the coating process of the implants.The result of the thesis is that no contamination occured on the surface, and therefore there now is a basis available for technical documents to increase the transfer time limit from eight hours to sixty hours. This could also be implemented in other areas of the production, where there are similar problems. This thesis could be the base of new test plans for those areas.