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CAMLOG&Science – Chapter 5
IMPLANTS IN EDENTULOUS PATIENTS
Implant-supported overdentures with four interforaminal implants are
recommended as the standard treatment of the edentulous mandible. In
the edentulous maxilla, usually additional implants are often placed in the
lateral area to improve stability. When using fixed restorations, a higher
number of implants is used, i.e., six in the mandible, seven in the maxilla.
Numerous independent studies have been performed to evaluate different
retention methods and implant numbers in edentulous patients using im-
plants with a Promote
®
surface. (Tab. 7).
*the publication included also other implant systems
Tab. 7:
Clinical prospective and retrospective studies on treatment forms on CAMLOG
®
Implants: retention technique, number of implants, study duration
Authors
Maxilla /
Duration /
Retention
Treatment on
(in%) Implant
Prospective
Mandible
Follow-up
N Implants
survival rate
Retrospective
Krennmair
Mandible
5 years
Ball abutment,
et al. 2011
telescopic crown
2
100
prospective
Krennmair
Mandible
3 years
Milled bar,
et al. 2012a
telescopic crown
4
100
prospective
Krennmair
Mandible
1 years
Ball abutment,
prospective
et al. 2012b
locator abutment
2
100
crossover
Xiang
Maxilla/
5 years
Horizontal / screw-
6 – 9
et al. 2011, 2010
Mandible
retained fixation
5 – 8
99
retrospective
Weinländer
Mandible
5 years
Milled bar /
4 / 2
et al. 2010*
round bar
or 4
100
prospective
Krennmair*
Mandible
5 years
Milled bar (anterior
et al. 2008 a, b
vs lateral region)
6 – 8
98
retrospective
Krennmair*
Mandible
5 years
Milled bar
et al. 2008 c
round bar
4
100
prospective
Karabuda
Maxilla/
23 months
Ball abutment,
et al. 2008*
Mandible
round bar
2 – 4
99
n.a.
Krennmair
Mandible
59 months
Milled
et al. 2007*
bar
4
99
retrospective
Nelson
Maxilla/
35 months
Galvano
5 – 6
et al. 2006
Mandible
bar
4
99
retrospective
Krennmair
Mandible
3 years
Ball abutment,
et al. 2006 a, b
telescopic crown
2
100
prospective