Status:
COMPLETED
Comparison of Early and Late Loading in the Edentulous Upper Jaw Using Cresco Prosthetic System on Straumann Implants
Lead Sponsor:
Institut Straumann AG
Conditions:
Jaw, Edentulous
Eligibility:
All Genders
18+ years
Phase:
PHASE4
Brief Summary
Comparison of early and late loading of implants supporting full each prosthesis in upper jaw, using the Cresco prosthetic system on Straumann implants. The study hypothesis is that there is no differ...
Detailed Description
The study is a controlled randomised study whereby each patient will receive 5-6 implants placed in the edentulous upper jaw supporting a 10-12 unit screw-retained fixed partial denture (FPD). The mai...
Eligibility Criteria
Inclusion
- Males and females must be at least 18 years of age.
- Be edentulous in the maxilla and subjectively desire an implant supported screw retained FPD
- The teeth at the implant site must have been extracted or lost at least 3 months before the date of implantation.
- In the case of Guided Bone Regeneration(GBR) or Guided Tissue Regeneration (GTR) treatments, these procedures must have been completed at least 6 months prior to intended surgery date (to fulfil point 5).
- Adequate bone quality and quantity at the six, minimum five, implant sites to permit the insertion of Straumann 4.1 and 3.3 mm diameter implants without the use of concurrent bone augmentation techniques. I.e. implant insertion sites must have sufficient bone height such that the implant will not encroach on vital structures and sufficient width that a minimum of 1 mm of palatal and buccal bone will remain.
- Patients must be committed to participate in the study for three years follow-up examinations
Exclusion
- Presence of conditions requiring chronic routine prophylactic use of antibiotics (e. g., history of rheumatic heart disease, bacterial endocarditis, cardiac valvular anomalies, prosthetic joint replacements)
- Medical conditions requiring prolonged use of steroids
- History of leukocyte dysfunction and deficiencies
- History of bleeding disorders
- History of neoplastic disease requiring the use of radiation or chemotherapy
- Patients with history of renal failure
- Patients with metabolic bone disorders
- History of uncontrolled endocrine disorders
- Physical handicaps that would interfere with the ability to perform adequate oral hygiene
- Use of any investigational drug or device within the 30-day period immediately prior to implant surgery on study day 0.
- Alcoholism or drug abuse
- Patients infected with HIV
- Patients who smoke more than 10 cigarettes per day or cigar equivalents, or who chew tobacco (not greater than 10 cigarette equivalents)
- Conditions or circumstances, in the opinion of the investigator, which would prevent completion of study participation or interfere with analysis of study results, such as history of non-compliance, unreliability.
- Local inflammation, including untreated periodontitis
- Mucosal diseases such as erosive lichen planus
- History of local irradiation therapy
- Presence of osseous lesions
- Unhealed extraction sites (less than 3 months post extraction of teeth in intended sites)
- Bone surgery (bone grafts, guided tissue regeneration technique for bone enhancement) at implant placement.
- Severe bruxing or clenching habits
- Persistent intraoral infection
- Patients with inadequate oral hygiene or unmotivated for adequate home care
- Lack of primary stability of 1 or more implant(s) at surgery. In this instance the patient must be withdrawn and treated accordingly.
- Insufficient bone
- Other: Inability to place implants according to protocol requirements
Key Trial Info
Start Date :
October 1 2004
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
September 1 2009
Estimated Enrollment :
36 Patients enrolled
Trial Details
Trial ID
NCT00922935
Start Date
October 1 2004
End Date
September 1 2009
Last Update
March 31 2016
Active Locations (2)
Enter a location and click search to find clinical trials sorted by distance.
1
STP Oral protetik
Kalmar, Sweden, 39185
2
Oral rehabilitering
Linköping, Sweden, 58185