Me. Geertman et al., CLINICAL ASPECTS OF A MULTICENTER CLINICAL-TRIAL OF IMPLANT-RETAINED MANDIBULAR OVERDENTURES IN PATIENTS WITH SEVERELY RESORBED MANDIBLES, The Journal of prosthetic dentistry, 75(2), 1996, pp. 194-204
In a multicenter clinical trial treatment, the effects of overdentures
on different implant systems in patients with severely resorbed mandi
bles were compared 1 year after the insertion of new dentures. The imp
lant systems used were the transmandibular implant (TMI), the IMZ (IMZ
), and the Branemark system (BRA). Treatment was randomly assigned to
88 patients according to a balanced allocation method. Evaluation incl
uded peri-implant and radiographic parameters. According to the Delphi
method a Clinical Implant Performance scale (CIP) was constructed bas
ed on all conceivable complications of the different implant systems.
During the healing period, one IMZ and one BRA implant were lost, and
one TMI implant was removed after functional loading. The results of t
he peri-implant and radiographic parameters and the CIP scale revealed
no significant differences between the three implant systems.