One-Year Multicenter Randomised Controlled Trial Comparing OT Equator® and Locator Attachments to Retain an Early Loaded Implant Overdenture on Two Implants
No evidence of retreatment except for accepted maintenance (includes patrix activation/repair/replacement, matrix activation/repair/replacement, and asymptomatic peri-implant/interabutment mucosal enlargement not requiring excision). There was a limit of two replacements of either patrix or matrix in the first year and five replacements in 5 years and one reline of the overdenture base in five years
Survival
Survival: patient could not be examined directly, but the patient or another clinician confirms no evidence of retreatment except that described for a successful outcome
Unknown
Unknown (lost to follow-up): the patient could not be traced; surviving or successful implant overdenture removed to allow—to provision of a new overdenture, e.g., conversion to another overdenture design with additional implants or a fixed implant prosthesis using the same or additional implants
Deceased
Deceased: the patient died during the study period regardless of whether successful or surviving criteria were experienced before death
Retreatment (repair)
Retreatment (repair): treatment of implant overdentures and/or mucosa where marginal integrity and associated patrices/matrices are maintained irrespective of modifications as long as it continues as an implant overdenture. More than two replacements of either patrix or matrix in the first year or more than five replacements in the first five years. Includes replacement of worn or fractured overdenture teeth/fractured overdentures, relining of overdenture more than once in five years, or excision of patrix-associated mucosal enlargement as a result of infringement on the shoulder/undersurface of the patrix
Retreatment (replace)
Retreatment (replace): part or all of implant overdenture is no longer serviceable because of either loss of implants or irreparable mechanical breakdown
