86
Participants
Start Date
November 30, 2002
Primary Completion Date
June 30, 2027
Study Completion Date
June 30, 2027
1 implant placed surgically in the mandibular midline
Participants receive an implant in the mandibular midline using a surgical flap procedure with local anaesthesia.
2 implants placed surgically in the mandibular canine sites
Participants receive implants bilaterally in the site of the mandibular canines using a surgical flap procedure with local anaesthesia.
Soft reline (Coe Comfort) of the existing complete lower denture
Participants receive a soft reline of the existing complete lower denture approximately 10 days after placement of the implant(s).
2.25mm ball patrix placed on 1 healed implant
A 2.25mm ball patrix is screwed onto the 1 implant approximately six weeks after placement of the implant.
2.25mm ball patrices placed on 2 healed implants
2.25mm ball patrices are screwed onto the 2 implants approximately six weeks after placement of the implants.
Reline (Ivoclar acrylic-resin) with 1 retentive matrix in the lower denture
Participants have their complete lower denture relined with a laboratory-processed acrylic resin to incorporate 1 retentive matrix in the denture-base to retain on the implant.
Reline (Ivoclar acrylic-resin) with 2 retentive matrices in the lower denture
Participants have their complete lower denture relined with a laboratory-processed acrylic resin to incorporate 2 retentive matrices in the denture-base to retain on the implants
Department of Oral Health Sciences, University of British Columbia, Vancouver
ITI International Team for Implantology, Switzerland
OTHER
Canadian Institutes of Health Research (CIHR)
OTHER_GOV
Straumann Canada Ltd.
UNKNOWN
University of British Columbia
OTHER