Influence of Occlusal Force on Electroencephalograms in Edentulous Patients

Morokuma, Masakazu; Yoneyama, Yoshikazu; Matsuda, Ryozo; Hosoi, Toshio; Ohkubo, Chikahiro

doi:10.1111/jopr.12263

Cited by 4 publications

(4 citation statements)

References 17 publications

(20 reference statements)

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“…Some facilities do not allow dentures to be worn except when eating, for fear of loss. This idea certainly has some merit, but dentures contribute to the activation of synaptic/neuronal dysfunction in the brain [19]. In addition, nocturnal wearing of dentures has been shown to be effective for elderly patients with sleep apnoea [10].…”

Section: Discussionmentioning

confidence: 99%

Current Denture Loss in Geriatric Facilities

et al. 2022

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Purpose: Denture loss is still being reported as a problem in geriatric facilities, although losses seem less frequent than in the last decade. However, there have been no reports that have examined recent losses of dentures in detail. The aim of this study was to clarify the actual situation of recent denture loss, together with the denture loss rate in Japan. Materials and methods: This retrospective study investigated the number of cases of denture loss, the denture loss rate for denture wearers, and the details of losses in geriatric facilities during the 1-year period from 1 April 2020 to 31 March 2021. Results: Eleven special elderly nursing homes and four group homes participated in this research. The number of residents from each was 315 and 40 and the number of denture wearers was 165 and 33, respectively (p < 0.001). The loss of dentures was found in one case from a special elderly nursing home and in one case from a group home. The loss rate for denture wearers was 1.01% in total, with 0.61% for special elderly nursing homes and 3.03% for group homes, with no significant differences between the two types of facilities. Conclusion: In geriatric facilities in Japan, the current 1-year denture loss rate for denture wearers was 1.01%. This seems to represent a considerable decrease when compared with the previous report. Further, proper denture management and staff efforts appear to have contributed to a reduction in denture loss against a background of promoting oral healthcare.

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Section: Discussionmentioning

confidence: 99%

Current Denture Loss in Geriatric Facilities

et al. 2022

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“…It reflects the relaxation, anxiety, and stress. Alpha waves value below nine suggests increased risk of dementia [19], [20].…”

Section: Discussionmentioning

confidence: 99%

The Effect of Alteration of Vertical Dimension of Occlusion on Brain Activity in Complete Denture Wearers

Elmorsy

Zaki

Elbahnaswi

et al. 2021

Open Access Maced J Med Sci

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BACKGROUND: The establishment of appropriate vertical dimension of occlusion (VDO) is paramount for successful and functioning complete dentures (CDs). AIM: The aim of this study was to assess the effect of alteration of VDO on the brain activity in CD wearers. MATERIALS AND METHODS: Ten completely edentulous patients participated in this study. Each patient received three sets of CDs: one control set and two duplicates’ CDs. The control CDs was designed with appropriate VDO (control - VDO), while the duplicate CDs were designated as followed: one with VDO lowered by –3 mm (low - VDO) the other one VDO was increased by +5 mm (high - VDO). The effect of alteration of VDO on brain activity was assessed by measuring alpha waves changes using electroencephalogram (EEG) before and after chewing gum. Statistical analysis was carried out using one-way ANOVA and dependent t-test. The significance level was set at p < 0.05. RESULTS: There was a significant increase in the alpha waves mean values after chewing (p < 0.05) gum compared to before except for low - VDO CDs (p > 0.05). The control-VDO revealed a statistically significant higher mean values compared to the duplicate dentures. CDs with high - VDO showed higher mean value than low - VDO dentures, however, it was statistically insignificant (p > 0.05). CONCLUSION: Appropriate determination of VDO is not only important for the success of CDs but also for the functional augmentation of brain activity.

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“…In addition, direct support by the tongue force might ensure denture stability in the opening phase by counteracting the lifting of the mandibular denture due to its being glued to the maxillary denture by food as well as by efficient bilateral food distribution on the occlusal surfaces of the teeth, as also in terms of support during bilateral biting of food. Additionally, brain activity is associated with tongue movements and enhanced by the functional improvement in complete dentures . Hence, the tongue force may correlate with mastication efficiency, because of its activities outside the stage of mastication.…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, brain activity is associated with tongue movements 45,46 and enhanced by the functional improvement in complete dentures. 47,48 Hence, the tongue force may correlate with mastication efficiency, because of its activities outside the stage of mastication.…”

Section: Discussionmentioning

confidence: 99%

Relevance of Tongue Force on Mandibular Denture Stabilization during Mastication

Żmudzki

Chladek

Krawczyk

2017

Journal of Prosthodontics

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Despite the lack of substantial improvement in stability with the addition of tongue forces, tongue action that contributes to a slight reduction in sliding may help reduce common frictional trauma resulting from cyclic movement during chewing. The beneficial impact of tongue force shown in earlier work under conditions of complete adherence of dentures to the foundation indicates a benefit of using adhesives.

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Influence of Occlusal Force on Electroencephalograms in Edentulous Patients

Abstract: A positive correlation was observed between improved occlusal force attained via complete denture treatment and the activation of Dα. This finding reveals occlusal force as a denture treatment outcome that contributes to the activation of synaptic/neuronal dysfunction in the brain.

Cited by 4 publications

References 17 publications

Current Denture Loss in Geriatric Facilities

Current Denture Loss in Geriatric Facilities

The Effect of Alteration of Vertical Dimension of Occlusion on Brain Activity in Complete Denture Wearers

Relevance of Tongue Force on Mandibular Denture Stabilization during Mastication

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