Evaluation of Immediate Versus Delayed Loading of Dental Implants With a Modified Surface
Immediate and Delayed Loading of 4.1 mm and 4.8 mm Implants in the Posterior Mandible & Maxilla: A Controlled Randomized Study of Single or 2-4 Unit Restorations Loaded Immediately After Surgery or Four Weeks After Surgery
1 other identifier
interventional
266
9 countries
19
Brief Summary
The purpose of this study is to evaluate the performance of a new dental implant with a modified surface in different loading protocols.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Jul 2004
Longer than P75 for phase_4
19 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2004
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2006
CompletedFirst Submitted
Initial submission to the registry
October 28, 2008
CompletedFirst Posted
Study publicly available on registry
October 31, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2010
CompletedResults Posted
Study results publicly available
June 20, 2017
CompletedJune 20, 2017
April 1, 2017
2.3 years
October 28, 2008
March 3, 2016
April 6, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Evaluation of Changes in Crestal Bone Levels Evaluated From Standardized Periapical X-rays Comparing the Immediate and Delayed Loading Procedures in Each Group.
Change in crestal bone level from surgery (baseline) to 20-23 Weeks post-surgery
Evaluation of Changes in Crestal Bone Levels Evaluated From Standardized Periapical X-rays Comparing the Immediate and Delayed Loading Procedures in Each Group.
Change in crestal bone level from surgery (baseline) to 1 year post-surgery
Evaluation of Changes in Crestal Bone Levels Evaluated From Standardized Periapical X-rays Comparing the Immediate and Delayed Loading Procedures in Each Group.
Change in crestal bone level from surgery (baseline) to 2 years post-surgery
Evaluation of Changes in Crestal Bone Levels Evaluated From Standardized Periapical X-rays Comparing the Immediate and Delayed Loading Procedures in Each Group.
Change in crestal bone level from surgery (baseline) to 3 years post-surgery
Secondary Outcomes (10)
Implant Survival
20-23 Weeks post-surgery
Implant Survival
1 year post-surgery
Implant Survival
2 years post-surgery
Implant Survival
3 years post-surgery
Nature and Frequency of Adverse Events (AEs) - Number of Patients Affected
until the 3 year post-surgery
- +5 more secondary outcomes
Study Arms (2)
Immediate Loading
ACTIVE COMPARATORSLActive dental implant(s) will be restored with a temporary restoration on the day of surgery.
Early Loading
ACTIVE COMPARATORHealing caps will be placed on the SLActive dental implant(s) immediately after surgery. A provisional restoration will be placed between day 28 to day 34 post surgery
Interventions
Straumann® SLActive implants will be placed. Implants in Arm 1 will be restored with a temporary restoration on the day of surgery. Implants in Arm 2 will receive healing caps immediately after surgery and a provisional restoration will be placed between day 28 to day 34 post-surgery. In both arms, the final restoration will be placed between 140 and 160 days (20 to 23 weeks) post-surgery.
Eligibility Criteria
You may qualify if:
- Males and females must be at least 18 years of age
- Have at least one missing tooth in positions FDI 4, 5, 6, or 7 in any quadrant (ADA positions 2, 3, 4, 5; or 12, 13, 14, 15; or 20, 21, 22, 23; or 28, 29, 30, 31.)
- Subjects desire an implant supported restoration on1 to 4 implants per quadrant
- The tooth/teeth position(s) at the proposed implant site must have been extracted or lost at least 4 months before the date of implantation and be fully healed
- Adequate bone quality and quantity at the implant site to permit the insertion of a Straumann standard 4.1 mm diameter implant of at least 8 mm length without the use of concurrent bone augmentation techniques. If more bone is available and is indicated a Straumann standard 4.8 mm diameter implant with a wide neck of at least 8 mm length may be used, 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 bone lingual and buccal bone will remain
- The opposing dentition must be natural teeth or fixed crowns or bridges on natural teeth or implants. Removable prostheses or dentures opposing the study implants are not allowed
- Patients must be committed to the study for its full duration.
You may not qualify if:
- 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 chemotherapy
- History of radiation therapy to the head and neck
- Patients with history of renal failure
- Patients with severe or uncontrolled metabolic bone disorders
- 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 \>10 cigarettes per day or cigar equivalents, or who chew tobacco
- 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, or unreliability
- +11 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (19)
Private Practice
Boca Raton, Florida, 33431, United States
Private Practice
Indianapolis, Indiana, 46280, United States
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
Tiroler Landeskrankenanstaltengesellschaft mbH
Innsbruck, Austria
Praxisklinik fur Mund- Keifer- und Gesichtschirurgie
Bochum, Germany
Private Practice
Fürth, Germany
Klinikum Nord-Heidberg
Hamburg, Germany
Private Practice
Weiden, Germany
Private Universitat Witten
Witten, Germany
Queens University
Belfast, Ireland
Dublin Dental Hospital
Dublin, Ireland
Rijnland Hospital
Leiderdorp, Netherlands
Faculdade de medicina de coimbra
Coimbra, Portugal
Private Practice
Porto, Portugal
Private Practice
Barcelona, Spain
Private Practice
Málaga, Spain
Clinica Periobalear
Palma de Mallorca, Spain
Private Practice
Falun, Sweden
Private Practice
Sankt Gallen, Switzerland
Related Publications (3)
Zollner A, Ganeles J, Korostoff J, Guerra F, Krafft T, Bragger U. Immediate and early non-occlusal loading of Straumann implants with a chemically modified surface (SLActive) in the posterior mandible and maxilla: interim results from a prospective multicenter randomized-controlled study. Clin Oral Implants Res. 2008 May;19(5):442-50. doi: 10.1111/j.1600-0501.2007.01517.x.
PMID: 18416725RESULTGaneles J, Zollner A, Jackowski J, ten Bruggenkate C, Beagle J, Guerra F. Immediate and early loading of Straumann implants with a chemically modified surface (SLActive) in the posterior mandible and maxilla: 1-year results from a prospective multicenter study. Clin Oral Implants Res. 2008 Nov;19(11):1119-28. doi: 10.1111/j.1600-0501.2008.01626.x.
PMID: 18983314RESULTNicolau P, Korostoff J, Ganeles J, Jackowski J, Krafft T, Neves M, Divi J, Rasse M, Guerra F, Fischer K. Immediate and early loading of chemically modified implants in posterior jaws: 3-year results from a prospective randomized multicenter study. Clin Implant Dent Relat Res. 2013 Aug;15(4):600-12. doi: 10.1111/j.1708-8208.2011.00418.x. Epub 2011 Dec 15.
PMID: 22171722RESULT
Results Point of Contact
- Title
- Institut Straumann AG
- Organization
- Institut Straumann AG - Clinical Research
Study Officials
- PRINCIPAL INVESTIGATOR
Axel Zöllner, DDS
Private Universität Witten/ Herdecke
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 28, 2008
First Posted
October 31, 2008
Study Start
July 1, 2004
Primary Completion
October 1, 2006
Study Completion
February 1, 2010
Last Updated
June 20, 2017
Results First Posted
June 20, 2017
Record last verified: 2017-04
Data Sharing
- IPD Sharing
- Will not share