Masticatory function with implant-supported overdentures.
The type of attachment that is used in implant-supported mandibular overdentures may influence the retention and stability of the prosthesis and, thus, masticatory function. In this within-subject cross-over clinical trial, we examined the hypothesis that greater retention and stability of the overdenture improve the masticatory function. Eighteen edentulous subjects received 2 oral implants, a new overdenture, and, successively, 3 different suprastructure modalities: magnet, ball, and bar-clip. Masticatory performance, masticatory efficiency, and swallowing threshold were measured. The masticatory function significantly improved after implant treatment with each of the 3 attachments. We observed small differences in masticatory function among the 3 attachment types: slightly better masticatory performance with ball and bar-clip than with magnet attachments. The number of chewing cycles until swallowing hardly decreased after implant treatment. We conclude that significantly better masticatory performance, combined with a slightly smaller number of chewing cycles after implant treatment, results in smaller food particles being swallowed.
Department of Head and Neck, Oral-Maxillofacial Surgery, Prosthodontics and Special Dental Care, University Medical Center Utrecht, Str. 4.115, PO Box 85.060, 3508 AB, The Netherlands.
F M C
FM
van Kampen
A
A
van der Bilt
M S
MS
Cune
F A
FA
Fontijn-Tekamp
F
F
Bosman
D000328:Adult; D015331:Cohort Studies; D018592:Cross-Over Studies; D003679:Deglutition / Q000502:physiology; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003779:Denture Design; D003781:Denture Retention; D003828:Denture, Overlay; D005260:Female; D005502:Food; D006801:Humans; D008280:Magnetics / Q000295:instrumentation; D008297:Male; D008409:Mastication / Q000502:physiology*; D008875:Middle Aged; D010316:Particle Size; D012684:Sensory Thresholds / Q000502:physiology; D013499:Surface Properties
D015921:Dental Implants