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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01928004
Other study ID # MDGPA_02
Secondary ID ITI_458_2006
Status Completed
Phase N/A
First received
Last updated
Start date September 2007
Est. completion date April 2019

Study information

Verified date April 2021
Source University of Geneva, Switzerland
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to investigate denture satisfaction following the conversion of existing mandibular complete dentures to implant-overdentures (IOD) in very old edentulous patients who depend on help for activities of daily living (ADL) and evaluate secondary endpoints such as functional, structural, nutritional, cognitive and patient-centered outcome measures.


Recruitment information / eligibility

Status Completed
Enrollment 45
Est. completion date April 2019
Est. primary completion date April 2012
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 75 Years and older
Eligibility Inclusion Criteria: - 75 years or older - living institutionalized or receiving help for the ADL - edentulous - wearing complete dentures - the lower denture had to cause discomfort to the degree that the patients were seeking treatment Exclusion Criteria: - severe clinical depression - dementia - poorly controlled diabetes - immunosuppression - treatment with bisphosphonates - condition precluding the surgical intervention for implant placement

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Implant placement
Participants received two Straumann Standard Implants® in the interforaminal region using the recommended surgical protocol. The implants were loaded using Locator® attachments after six to eight weeks healing time by transforming the existing lower denture to an IOD.
Procedure:
Conventional reline
conventional reline of the existing mandibular complete denture

Locations

Country Name City State
Switzerland University of Geneva Geneva

Sponsors (1)

Lead Sponsor Collaborator
University of Geneva, Switzerland

Country where clinical trial is conducted

Switzerland, 

References & Publications (2)

Maniewicz S, Duvernay E, Srinivasan M, Perneger T, Schimmel M, Müller F. Effect of implant-supported mandibular overdentures versus reline on masticatory performance and salivary flow rates in very old adults-A randomized clinical trial. Clin Oral Implant — View Citation

Müller F, Duvernay E, Loup A, Vazquez L, Herrmann FR, Schimmel M. Implant-supported mandibular overdentures in very old adults: a randomized controlled trial. J Dent Res. 2013 Dec;92(12 Suppl):154S-60S. doi: 10.1177/0022034513509630. Epub 2013 Oct 24. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change from Baseline in Denture satisfaction VAS-scale score to evaluate the subjective satisfaction with the denture at 3, 12, 24 and 36 months
Secondary Change from Baseline in OHRQoL OHIP-Edent questionnaire, 20 questions at 3, 12, 24 adn 36 months
Secondary Change from Baseline in cognitive function Mini-Mental State Examination, to evaluate cognitive function (Folstein et al. 1975) Trail-making test A and B Verbal fluency test at 12, 24 and 36 months
Secondary Change from Baseline in Independence IADL Instrumental Activities of Daily Living Scale (Lawton and Brody, 1969) MIF Measure of functional independence at 12, 24 and 36 months
Secondary Change from Baseline in MNA Mini-nutritional Assessement questionnaire (Guigoz 1994) at 3, 12, 24 and 36 months
Secondary Change from Baseline in Blood markers Albumin, Folic acid, Vitamin B12 (VitB12), Hemoglobin (Hb), C-reactive protein (CRP) at 3, 12, 24 and 36 months
Secondary Change from Baseline in BMI Body Mass Index kg/m2 at 12, 24 and 36 months
Secondary Change from Insertion in implant survival inserted implants in vivo at 3, 12, 24 and 36 months
Secondary Change from Insertion in Pocket depth mesial and distal peri-implant probing depth at 3, 12, 24 and 36 months
Secondary Change from Insertion in Plaque index Plaque index on implants (Silness & Loe 1963) Denture plaque index at 3, 12, 24 and 36 months
Secondary Change from Insertion in peri-implant bone loss mesial and distal peri-implant bone loss, as evaluated on intraoral radiographs or OPTs at 3, 12, 24 and 36 months
Secondary Change from Baseline in Chewing efficiency two color mixing test with bi-colored chewing gum (Schimmel et al 2007) at Intervention, 3, 12, 24 and 36 months
Secondary Change from Baseline in Maximum bite force unilateral maximal bite force measured with force gauge at Intervention, 3, 12, 24 and 36 months
Secondary Change from Baseline in Stimulated Saliva Flow Rate whole saliva collected after chewing wax for 2 minutes on one side at Intervention, 3, 12, 24 and 36 months
Secondary Changes from Baseline in Masseter Muscle Thickness ultrasound measurements of the masseter muscle thickness in contracted and relaxed state at 3, 12, 24 and 36 months