Clinical Evaluation of the Mandibular Mini-Implant Overdenture

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 evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01064843
Recruitment Status : Completed
First Posted : February 9, 2010
Last Update Posted : May 30, 2014
McGill University
Information provided by (Responsible Party):

Brief Summary:
Stabilization of existing full lower dentures by means of mini-dental implants (MDI). To test whether 4 mini-implants placed at the front of the lower jaw can stabilize an immediately-modified existing lower denture.

Condition or disease Intervention/treatment
Stabilization of a Full Lower Denture Edentulism in Lower Jaw Lower Denture Made Within Last Few Years Device: Imtec MDI

Detailed Description:
To test whether the percentage of case successes of these lower dentures supported by 4 MDIs is equal to or greater than 95% at 1 year. Success is defined as a denture supported by implants that is functioning in the way it was intended.

Study Type : Observational
Actual Enrollment : 80 participants
Time Perspective: Prospective
Official Title: Clinical Evaluation of the Mandibular Mini-Implant Overdenture
Study Start Date : February 2010
Actual Primary Completion Date : March 2014
Actual Study Completion Date : March 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Dentures

Group/Cohort Intervention/treatment
4 Imtec mini-dental implants (MDI)
4 Imtec MDI
Device: Imtec MDI
4 Imtec MDI

Primary Outcome Measures :
  1. Success rate of mandibular overdentures supported by 4 MDIs placed in the interforaminal region in the long term. [ Time Frame: 3 years ]

Secondary Outcome Measures :
  1. Oral health-related quality of life and general satisfaction of patients. [ Time Frame: 3 years ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Dental implant

Inclusion Criteria:

  • Completely edentulous with last tooth extraction 2 years ago or longer.
  • Patients requesting implant stabilization of existing lower conventional denture.
  • Adequate space in anterior mandible for placement of 4 MDI implants.
  • Able to maintain adequate oral hygiene and keep dentures clean.
  • Healthy enough to have minor surgical procedures.
  • Have adequate understanding of written and spoken English or French.
  • Capable of providing written informed consent.

Exclusion Criteria:

  • Not enough room in mandibular bone for implant height.
  • Has acute or chronic symptoms of parafunctional disorders.
  • History of radiotherapy to orofacial region.
  • Are or have been taking bisphosphonate IV or other medications (to be evaluated by the researcher).
  • Health conditions that may jeopardize treatment (to be evaluated by the researcher).
  • Unable or unwilling to return for evaluations or study recalls.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01064843

Canada, Quebec
Faculty of Dentistry, McGill University
Montreal, Quebec, Canada, H3A 2A7
Sponsors and Collaborators
McGill University
Principal Investigator: Jocelyne Feine, DDS, MSc, HDR Professor, Principal Investigator

Responsible Party: 3M Identifier: NCT01064843     History of Changes
Other Study ID Numbers: 3M ESPE CR-09-020
First Posted: February 9, 2010    Key Record Dates
Last Update Posted: May 30, 2014
Last Verified: May 2014

Keywords provided by 3M:
Lower denture
Mini dental implant
Imtec MDI
Denture stabilization
Case success rate of overdentures stabilized by MDI
General satisfaction of patients with this treatment
Oral health-related quality of life of these patients
Cost estimates