Maxillary sensory nerve responses induced by different types of dentures
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概要
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Purpose: The purpose of this study was to investigate whether different types of dentures induced different responses to stimulations in sensory nerve underlying the denture-supporting mucosa using current perception threshold (CPT).Materials and methods: The study population comprised 45 complete denture wearers with a mean age of 69.7 years (CD), 30 partial denture wearers (PD) with a mean age of 67.1 years, and 40 dentulous participants with a mean age of 69.0 years (Dent). Current perception threshold (CPT) on the greater palatine nerve at 2000 Hz, 250 Hz, and 5 Hz, corresponding to A-beta, A-delta, and C fibers respectively, were measured by the Neurometer® NS3000 device. The differences CPTs among CD, PD, and Dent groups were analyzed by Kruskal–Wallis test and Mann–Whitney U test with adjusting the multiple comparisons' inflation of type 1 error rate by a Bonferroni correction.Results: CPTs of CD, PD, and Dent group at 2000 Hz were 61.5 ± 45.8, 53.5 ± 25.3, 33.0 ± 11.4 (10−2 mA) respectively. CPTs of CD, PD, and Dent group at 250 Hz were 29.2 ± 28.2, 20.1 ± 13.2, 14.3 ± 5.9 (10−2 mA) respectively. CPTs of CD, PD, and Dent group at 5 Hz were 28.9 ± 23.4, 17.8 ± 12.2, 12.2 ± 5.6 (10−2 mA) respectively. The CPTs at all frequencies increased in the following order: Dent < PD < CD wearer. The statistical analyses showed that the different types of dentures significantly affected CPTs at 2000 Hz (p < 0.0001), 250 Hz (p < 0.0001), and 5 Hz (p < 0.0001).Conclusion: The different types of dentures induce different responses to stimulations in the sensory nerve underlying the denture-supporting mucosa.
著者
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Kawai Yasuhiko
Department Of Complete Denture Nihon University School Of Dentistry At Matsudo
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Kimoto Suguru
Department Of Complete Denture Nihon University School Of Dentistry At Matsudo
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Yamaguchi Hidenori
Department Of Anesthesiology Nihon University School Of Dentistry At Matsudo
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Kimoto Suguru
Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
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Ito Nana
Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics
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Nakashima Yoshio
Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics
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Ikeguchi Nobuyuki
Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
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