Study Comparing Appearance and Function of Three Different Dental Implant Designs When Placed in Front Region of Upper Jaw
Prospective, Comparative Assessment of Single-tooth Replacement in Different Implant-abutment Settings
1 other identifier
interventional
141
2 countries
4
Brief Summary
The primary objective is to compare the gum response to three different dental implant designs when placed in the front region of the upper jaw. The changes from baseline to one year after will be compared. The null-hypothesis is that the buccal soft tissue (gum) changes from baseline to one year after are equal for all three implant-abutment interface settings.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2009
Longer than P75 for not_applicable
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 9, 2009
CompletedFirst Posted
Study publicly available on registry
January 12, 2009
CompletedStudy Start
First participant enrolled
February 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2016
CompletedResults Posted
Study results publicly available
May 7, 2020
CompletedMay 7, 2020
April 1, 2020
7.6 years
January 9, 2009
April 24, 2020
April 24, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Buccal Soft Tissue (Gum) Changes, Measured as Mid-buccal Gingival Zenith (GZ) Scores.
Soft tissue response was evaluated by measuring it clinically and by evaluating it from clinical photographs using image analysis. Clinical evaluations of gingival zenith were performed at time of loading (permanent restoration) and at the 5-year follow-up after loading. The vertical distance from the most apical aspect of the soft tissue margin to the incisal edge of implant crown was measured using a standardized periodontal probe to the nearest half millimeter using the surgical loupe. The changes in the gingival zenith was calculated for each study position and the average for each treatment group was calculated for the evaluation period.
Evaluated at time of loading (permanent restoration) and at the 5-years follow-up after loading
Secondary Outcomes (3)
Marginal Bone Level Alterations
Evaluated at time of implant installation and at the 5-year follow-up visit.
Evaluation of the Periimplant Mucosa Condition - By Assessment of PPD
Measured at time of loading of permanent restoration and at the 5-year follow-up.
Evaluation of the Periimplant Mucosa Condition - By Assessment of Change in BoP.
Measured at the implant loading and at the 5-year follow-up after loading.
Study Arms (3)
A
EXPERIMENTALB
ACTIVE COMPARATORC
ACTIVE COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Provision of informed consent
- At least 18 years
- In need of one or more single implants replacing missing or non-restorable teeth in the maxilla within region 14 to 24
- Edentulous for at least 5 months at study site
- A buccal-lingual bone width at study site of at least 5.5 mm
- A mesial-distal bone level distance between adjacent teeth at study site of at least 5.5 mm
- A keratinized mid-buccal mucosal height of at least 2 mm at study site
- Teeth adjacent (mesial and distal) to study site must consist of two stable teeth on natural roots without signs of periodontal bone loss (\>1 mm) and/or significant soft tissue loss
- Teeth adjacent (mesial and distal) to study site must demonstrate a stable occlusal guidance that will allow non-functional disclusion in all eccentric positions
- An opposing dentition with teeth, implants or prosthesis
You may not qualify if:
- Insufficient interocclusal distance for implant placement and restoration at study site
- Tooth adjacent (mesial and/or distal) to study site is ankylosed
- More than 2 mm vertical bone loss at study site as measured from the mid-buccal crest of bone on the adjacent teeth
- Site development (bone tissue) performed at less than 5 months before Visit 2 at study site
- Untreated rampant caries and/or uncontrolled periodontal disease
- Class II division 2 malocclusion (Edward Hartley Angle)
- Use of tobacco within last 6 months
- Uncontrolled diabetes (subjects history does not reveal the absence of control of insulin-dependent/non-insulin dependent Diabetes Mellitus)
- Current alcohol or drug abuse
- Systemic or local disease or condition that would compromise post-operative healing and/or osseointegration
- Use of any substance that will influence bone metabolism
- Need for systemic corticosteroids or any other medication that would influence post-operative healing and/or osseointegration
- History of radiation in the head and neck region
- Known pregnancy, pregnancy tests will be performed as per local requirements.
- Unable or unwilling to return for follow-up visits for a period of 5 years
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
University of Iowa, College of Dentistry
Iowa City, Iowa, 52242-1010, United States
University of North Carolina, School of Dentistry
Chapel Hill, North Carolina, 27599-7450, United States
Perio Health Clinical Research Center
Houston, Texas, 77063, United States
Faculty of Dentistry, McGill University
Montreal, Quebec, H3A 2K6, Canada
Related Publications (3)
McGuire MK, Scheyer T, Ho DK, Stanford CM, Feine JS, Cooper LF. Esthetic outcomes in relation to implant-abutment interface design following a standardized treatment protocol in a multicenter randomized controlled trial--a cohort of 12 cases at 1-year follow-up. Int J Periodontics Restorative Dent. 2015 Mar-Apr;35(2):149-59. doi: 10.11607/prd.2341.
PMID: 25738335RESULTCooper LF, Reside G, Stanford C, Barwacz C, Feine J, Abi Nader S, Scheyer ET, McGuire M. A multicenter randomized comparative trial of implants with different abutment interfaces to replace anterior maxillary single teeth. Int J Oral Maxillofac Implants. 2015 May-Jun;30(3):622-32. doi: 10.11607/jomi.3772.
PMID: 26009913RESULTBarwacz CA, Stanford CM, Diehl UA, Qian F, Cooper LF, Feine J, McGuire M. Electronic assessment of peri-implant mucosal esthetics around three implant-abutment configurations: a randomized clinical trial. Clin Oral Implants Res. 2016 Jun;27(6):707-15. doi: 10.1111/clr.12640. Epub 2015 Jun 21.
PMID: 26096162RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Manager Global Clinical Research
- Organization
- Dentsply Sirona Implants, Mölndal, SWEDEN
Study Officials
- STUDY DIRECTOR
Lyndon Cooper, Prof.
University of Illinois College of Dentistry
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- LTE60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 9, 2009
First Posted
January 12, 2009
Study Start
February 1, 2009
Primary Completion
September 1, 2016
Study Completion
September 1, 2016
Last Updated
May 7, 2020
Results First Posted
May 7, 2020
Record last verified: 2020-04