Trial Review

Did you know?

The ANZCTR now automatically displays published trial results and simplifies the addition of trial documents such as unpublished protocols and statistical analysis plans.

These enhancements will offer a more comprehensive view of trials, regardless of whether their results are positive, negative, or inconclusive.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT00906425




Registration number
NCT00906425
Ethics application status
Date submitted
19/05/2009
Date registered
21/05/2009
Date last updated
30/03/2016

Titles & IDs
Public title
Clinical Study Comparing Submerged Versus Trans-mucosal Healing of P.004 Implants in the Anterior Mandible and Maxilla
Scientific title
Randomized, Controlled Clinical Study Comparing Submerged vs. Trans-mucosal Placement of P.004 Implants in the Anterior Maxilla and Mandible by Evaluation of the Change in Bone Level Between 1st Stage Surgery and 6 Months Post Surgery
Secondary ID [1] 0 0
CR 05/05
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Jaw, Edentulous, Partially 0 0
Condition category
Condition code
Oral and Gastrointestinal 0 0 0 0
Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Devices - Straumann Bone Level Implant

Active comparator: Submerged healing - The Straumann Bone Level Implant(s) will be placed using a submerged healing treatment

Active comparator: Trans-mucosal healing - The Straumann Bone Level Implant(s) will be placed using a trans-mucosal healing treatment


Treatment: Devices: Straumann Bone Level Implant
Straumann Bone Level Implant, SLActive surface, diameter 4.1, length 8, 10, 12, and 14 mm
Intervention code [1] 0 0
Treatment: Devices
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Mean Change in Bone Level (Distance B) After 6 Months Compared to Baseline (=Surgery)
Timepoint [1] 0 0
Baseline and 6 months
Secondary outcome [1] 0 0
Implant Survival Rate
Timepoint [1] 0 0
6 months
Secondary outcome [2] 0 0
Implant Survival Rate
Timepoint [2] 0 0
12 months

Eligibility
Key inclusion criteria
* Males and females >18 years of age.
* Implant placement planned in the anterior maxilla or mandible (FDI tooth numbers 21 - 25, 11 - 15, 31-35, 41-45).
* Tooth site must have a natural tooth both mesially and distally in the adjacent tooth positions
* Opposing dentition of natural teeth, or tooth or implant-supported fixed restorations.
* Adequate bone quality and quantity at the implant site to permit the insertion of a Straumann P.004 SLActive implant of 8, 10, 12, or 14 mm length.
* Presence of a sufficient band of keratinized mucosa (min. 2 mm) to allow surgical manipulation and suturing according to the protocol
* Signed informed consent document before being treated in the study
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Systemic disease that would interfere with dental implant therapy (e.g. uncontrolled diabetes)
* Any contraindications for oral surgical procedures
* Current untreated periodontitis or gingivitis
* Probing pocket depth of more than 4 mm at one of the adjacent teeth
* Mucosal diseases (e.g. erosive lichen planus)
* History of local irradiation therapy
* Bone augmentation procedures if the procedure require healing time of more than 12 weeks after implant placement
* Implants in adjacent position to planned implant
* Severe bruxing or clenching habits
* Heavy smokers: Patients who smoke more than 20 cigarettes per day
* Conditions or circumstances, in the opinion of the investigator, which would prevent completion of study participation.
* Patients with inadequate oral hygiene or unmotivated for adequate home care

Secondary Exclusion Criteria at Implant Surgery:

* Lack of primary stability of the implant
* Inappropriate implant position to insert implants according to the prosthetic requirements.
* Patients with augmentation procedures requiring more than 12 weeks healing time.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/10/2006
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/10/2013
Sample size
Target
Accrual to date
Final
145
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Dr. Stephen T. Chen - Melbourne
Recruitment postcode(s) [1] 0 0
3123 - Melbourne
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Florida
Country [2] 0 0
Germany
State/province [2] 0 0
Schleswig Holstein
Country [3] 0 0
Germany
State/province [3] 0 0
München
Country [4] 0 0
Germany
State/province [4] 0 0
Stuttgart
Country [5] 0 0
Germany
State/province [5] 0 0
Witten/ Herdecke
Country [6] 0 0
Italy
State/province [6] 0 0
Rom
Country [7] 0 0
Spain
State/province [7] 0 0
Madrid
Country [8] 0 0
Sweden
State/province [8] 0 0
Mölndal
Country [9] 0 0
Switzerland
State/province [9] 0 0
Zurich

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Institut Straumann AG
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The purpose of this study is To demonstrate that there is no difference in change in bone level around P.004 implants between 1st stage surgery and 6 months post surgery when transmucosal implant placement is compared to submerged implant placement
Trial website
https://clinicaltrials.gov/study/NCT00906425
Trial related presentations / publications
Hammerle CHF, Jung RE, Sanz M, Chen S, Martin WC, Jackowski J; this multicenter study group; Ivanoff CJ, Cordaro L, Ganeles J, Weingart D, Wiltfang J, Gahlert M. Submerged and transmucosal healing yield the same clinical outcomes with two-piece implants in the anterior maxilla and mandible: interim 1-year results of a randomized, controlled clinical trial. Clin Oral Implants Res. 2012 Feb;23(2):211-219. doi: 10.1111/j.1600-0501.2011.02210.x. Epub 2011 Jul 4.
Cordaro L, Torsello F, Chen S, Ganeles J, Bragger U, Hammerle C. Implant-supported single tooth restoration in the aesthetic zone: transmucosal and submerged healing provide similar outcome when simultaneous bone augmentation is needed. Clin Oral Implants Res. 2013 Oct;24(10):1130-6. doi: 10.1111/j.1600-0501.2012.02521.x. Epub 2012 Jun 15.
Public notes

Contacts
Principal investigator
Name 0 0
Christoph Hammerle
Address 0 0
University of Zurich
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT00906425