NCT00641576

Brief Summary

Dental implants are small metal posts that look like miniature screws. They are surgically implanted into the jawbone where they serve as substitute tooth roots. Implants are used in dentistry to reestablish function and aesthetics to areas of the mouth were natural teeth are missing. Classical dental implants are made in two pieces. One part anchors in the jawbone and one part serves as a connecting post (an abutment) that attaches to a crown restoration or to attachment clasps that hold a denture in place. Occasionally the materials used to fasten the two implant components together work their way loose and over time the abutment may begin to disconnect. If this happens a small gap appears between the implant and abutment. There are many reasons why this loosening occurs. One reason may be the design of the implant itself and another may be the way the two components are fastened together. This study will assess the performance of an implant with a new design. The investigators hypothesize that using this implant design will reduce the risk of an implant-abutment disconnect and improve long-term success of implant therapy.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
23

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Apr 2005

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

April 1, 2005

Completed
3 years until next milestone

First Submitted

Initial submission to the registry

March 17, 2008

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 24, 2008

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2010

Completed
Last Updated

July 22, 2013

Status Verified

July 1, 2013

Enrollment Period

5.4 years

First QC Date

March 17, 2008

Last Update Submit

July 18, 2013

Conditions

Keywords

Endosseous implants

Outcome Measures

Primary Outcomes (1)

  • Junctional stability between device and abutment

    24 months

Secondary Outcomes (2)

  • Peri-implant osseous support of the device

    24 months

  • Peri-implant soft-tissue response to the device

    24 months

Interventions

Subjects in this study receive ACE CONNECT Internal-Connection dental implants to: 1)replace a missing tooth in an edentulous area of the maxilla or mandible restored with a single-unit crown (may include up to two non-adjacent areas as study sites) or, 2)subjects with an edentulous mandible will receive two implants placed in the lower canine position and restored with an implant-retained removable over-denture. Subjects will return for four follow-up evaluations scheduled at 6, 12, 18 and 24 months after delivery of the permanent restoration.

Also known as: ACE Morse Taper Lock, ACE Implant Internal-Connection

Eligibility Criteria

Age19 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Dental school periodontology clinic

You may qualify if:

  • Need for replacement of non-adjacent missing teeth with dental implants
  • Edentulous in the area for more than 2 months
  • Minimum native bone height and width to receive a 10mm X 4mm implant

You may not qualify if:

  • Untreated decay or periodontal disease in residual dentition
  • Need for bone or soft-tissue augmentation in the proposed implant site
  • Pregnancy
  • Consistent use of medications likely to compromise bone healing
  • Chronic disease condition likely to compromise bone healing
  • Consistent smoking over 10 cigarettes during the immediate past 6 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama at Birmingham School of Dentistry

Birmingham, Alabama, 35294 0007, United States

Location

Related Publications (14)

  • Zarb GA, Schmitt A. The longitudinal clinical effectiveness of osseointegrated dental implants: the Toronto study. Part III: Problems and complications encountered. J Prosthet Dent. 1990 Aug;64(2):185-94. doi: 10.1016/0022-3913(90)90177-e.

    PMID: 2202818BACKGROUND
  • Goodacre CJ, Kan JY, Rungcharassaeng K. Clinical complications of osseointegrated implants. J Prosthet Dent. 1999 May;81(5):537-52. doi: 10.1016/s0022-3913(99)70208-8.

    PMID: 10220658BACKGROUND
  • Jemt T, Book K, Linden B, Urde G. Failures and complications in 92 consecutively inserted overdentures supported by Branemark implants in severely resorbed edentulous maxillae: a study from prosthetic treatment to first annual check-up. Int J Oral Maxillofac Implants. 1992 Summer;7(2):162-7.

    PMID: 1398832BACKGROUND
  • Naert I, Quirynen M, van Steenberghe D, Darius P. A study of 589 consecutive implants supporting complete fixed prostheses. Part II: Prosthetic aspects. J Prosthet Dent. 1992 Dec;68(6):949-56. doi: 10.1016/0022-3913(92)90557-q.

    PMID: 1494126BACKGROUND
  • Kallus T, Bessing C. Loose gold screws frequently occur in full-arch fixed prostheses supported by osseointegrated implants after 5 years. Int J Oral Maxillofac Implants. 1994 Mar-Apr;9(2):169-78.

    PMID: 8206552BACKGROUND
  • Jemt T, Laney WR, Harris D, Henry PJ, Krogh PH Jr, Polizzi G, Zarb GA, Herrmann I. Osseointegrated implants for single tooth replacement: a 1-year report from a multicenter prospective study. Int J Oral Maxillofac Implants. 1991 Spring;6(1):29-36.

    PMID: 1843491BACKGROUND
  • Becker W, Becker BE. Replacement of maxillary and mandibular molars with single endosseous implant restorations: a retrospective study. J Prosthet Dent. 1995 Jul;74(1):51-5. doi: 10.1016/s0022-3913(05)80229-x.

    PMID: 7674191BACKGROUND
  • Lazzara R, Siddiqui AA, Binon P, Feldman SA, Weiner R, Phillips R, Gonshor A. Retrospective multicenter analysis of 3i endosseous dental implants placed over a five-year period. Clin Oral Implants Res. 1996 Mar;7(1):73-83. doi: 10.1034/j.1600-0501.1996.070109.x.

    PMID: 9002825BACKGROUND
  • Binon PP. Evaluation of the effectiveness of a technique to prevent screw loosening. J Prosthet Dent. 1998 Apr;79(4):430-2. doi: 10.1016/s0022-3913(98)70157-x.

    PMID: 9576318BACKGROUND
  • McGlumphy EA, Mendel DA, Holloway JA. Implant screw mechanics. Dent Clin North Am. 1998 Jan;42(1):71-89.

    PMID: 9421671BACKGROUND
  • Hurson S. Laboratory techniques to prevent screw loosening on dental implants. J Dent Technol. 1996 Apr;13(3):30-7.

    PMID: 9516271BACKGROUND
  • Bragger U, Hafeli U, Huber B, Hammerle CH, Lang NP. Evaluation of postsurgical crestal bone levels adjacent to non-submerged dental implants. Clin Oral Implants Res. 1998 Aug;9(4):218-24. doi: 10.1034/j.1600-0501.1998.090402.x.

    PMID: 9760896BACKGROUND
  • Weber HP, Buser D, Fiorellini JP, Williams RC. Radiographic evaluation of crestal bone levels adjacent to nonsubmerged titanium implants. Clin Oral Implants Res. 1992 Dec;3(4):181-8. doi: 10.1034/j.1600-0501.1992.030405.x.

    PMID: 1298433BACKGROUND
  • Lekholm U, Zarb G. Patient selection and preparation. In Branemark P-I, Zarb GA and Albrektsson T. eds. Tissue Integrated Prosthesis: Osseointegration in Clincal Dentistry. Chicago: Quintessence 1985 pp 199-209

    BACKGROUND

Study Officials

  • Michael S Reddy, DMD, DMSc

    University of Alabama at Birmingham

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Interin Dean

Study Record Dates

First Submitted

March 17, 2008

First Posted

March 24, 2008

Study Start

April 1, 2005

Primary Completion

September 1, 2010

Study Completion

September 1, 2010

Last Updated

July 22, 2013

Record last verified: 2013-07

Locations