Immediate Function of NobelSpeedy Shorty and Brånemark System® Mk III Shorty Implants in Daily Use

Inclusion Criteria: * The subjects should have an osseous architecture enough to receive an implant with a diameter of at least 3.75 mm for Brånemark System Mk III Shorty or 4 mm for NobelSpeedy Shorty and a sufficient amount of bone for placing implants with a length of 7 mm. * The final tightening torque at installation should be 35-45 Ncm without further rotation and should not exceed 45 Ncm. * The subject as well as the implant site(s) should fulfill criteria for immediate provizionalization. * Immediate insertion (e.g. placement of the implant immediately after extraction) will not constitute an exclusion criterion. * The implants site(s) should be free from extraction remnants. * The subject should be healthy and compliant with good oral hygiene. * The subject should be available for the 5-year term of the investigation. * Favorable and stable occlusal relationship Exclusion Criteria: * Alcohol or drug abuse as noted in patient records or in patient history. * Health conditions, which do not permit the surgical procedure. * Reason to believe that the treatment might have a negative effect on the subject's total situation (psychiatric problems), as noted in patient records or in patient history. * The subject is not able to give her/his informed consent to participate. * Any disorders in the planned implant area such as previous tumors, chronic bone disease, or previous irradiation. * Severe bruxism or other destructive habits.