The aim of the present prospective clinical study was to compare patient-reported outcomes for maxillary conventional
dentures and maxillary implant-supported dentures.
Material and methods
Twenty-one patients (6 women and 15 men)
being edentulous in the maxilla and encountering problems with their existing dentures were included. Twelve patients (4 women
and 8 men) received a new set of conventional dentures, due to insufficient dentures. In nine patients (2 women and 7 men),
the existing dentures were adjusted by means of relining or rebasing. All patients received implant-supported dentures on
two retentive anchors. In total, 42 implants were inserted in the anterior maxilla. The participants rated their satisfaction
on their existing conventional dentures, 2 months after insertion of new conventional dentures and 2 months after insertion
of implant-supported dentures. Thereby, patients responded to questionnaires capturing the oral health impact profile (OHIP)
using visual analog scales. Seven domains (functional limitation, physical pain, psychological discomfort, physical, psychological
and social disability and handicap) were assessed. Higher scores implied poorer patient satisfaction. In addition, the questionnaire
involved the evaluation of cleaning ability, general satisfaction, speech, comfort, esthetics, stability, and chewing ability.
Higher scores implied higher patient satisfaction.
Patient satisfaction significantly increased for implant-supported
dentures compared with old dentures in all seven OHIP subgroups, as well as for cleaning ability, general satisfaction, ability
to speak, comfort, esthetics, and stability (P < 0.05). The comparison of new conventional dentures and implant-supported
dentures revealed a statistically significantly increased satisfaction for functional limitation (difference of 33.2 mm),
psychological discomfort (difference of 36.7 mm), physical disability (difference of 36.3 mm), and social disability (difference
of 23.5 mm), (P < 0.05). Additionally, general satisfaction, chewing ability, speech, and stability significantly improved
in implant-supported dentures (P < 0.05).
Within the limits of this study, maxillary dentures
retained by two implants provided some significant short-term improvements over conventional dentures in oral- and health-related
quality of life.