Abstract：
BACKGROUND: Tooth loss has been associated with cognitive decline, but the underlying mechanisms involving speech and psychosocial impairment remain unclear.
OBJECTIVE: To investigate the impact of tooth loss-related speech and psychosocial impairment on cognitive function in Hong Kong\'s older population.
METHODS: Seventy-six Cantonese-speaking participants between the ages of 51-92 were classified into three groups: patients with complete dentures (CD), partially edentulous patients with less than 10 occluding tooth pairs (OU <10), and at least 10 occluding tooth pairs (OU ≥10). Cognitive function was assessed using the Montreal Cognitive Assessment Hong Kong Version, One-minute Verbal Fluency Task and Hayling Sentence Completion Test. Objective and subjective speech assessments were carried out using artificial intelligence speech recognition algorithm and a self-designed speech questionnaire. The impact of tooth loss on psychosocial condition was evaluated by the Reading the Mind in the Eyes Test and a self-designed questionnaire. Statistical analyses (one-way ANOVA, ANCOVA, Kruskal-Wallis test, Spearman correlation test) were performed.
RESULTS: Tooth loss was significantly associated with lower cognitive function (p = .008), speech accuracy (p = .018) and verbal fluency (p = .001). Correlations were found between cognitive function and speech accuracy (p < .0001). No significant difference in tooth loss-related psychosocial impact was found between the three groups.
CONCLUSIONS: While warranting larger sample sizes, this pilot study highlights the need for further research on the role of speech in the association between tooth loss and cognitive function. The potential cognitive impact of tooth retention, together with its known biological and proprioceptive benefits, supports the preservation of the natural dentition.
OBJECTIVE: To investigate the impact of tooth loss-related speech and psychosocial impairment on cognitive function in Hong Kong\'s older population.
METHODS: Seventy-six Cantonese-speaking participants between the ages of 51-92 were classified into three groups: patients with complete dentures (CD), partially edentulous patients with less than 10 occluding tooth pairs (OU <10), and at least 10 occluding tooth pairs (OU ≥10). Cognitive function was assessed using the Montreal Cognitive Assessment Hong Kong Version, One-minute Verbal Fluency Task and Hayling Sentence Completion Test. Objective and subjective speech assessments were carried out using artificial intelligence speech recognition algorithm and a self-designed speech questionnaire. The impact of tooth loss on psychosocial condition was evaluated by the Reading the Mind in the Eyes Test and a self-designed questionnaire. Statistical analyses (one-way ANOVA, ANCOVA, Kruskal-Wallis test, Spearman correlation test) were performed.
RESULTS: Tooth loss was significantly associated with lower cognitive function (p = .008), speech accuracy (p = .018) and verbal fluency (p = .001). Correlations were found between cognitive function and speech accuracy (p < .0001). No significant difference in tooth loss-related psychosocial impact was found between the three groups.
CONCLUSIONS: While warranting larger sample sizes, this pilot study highlights the need for further research on the role of speech in the association between tooth loss and cognitive function. The potential cognitive impact of tooth retention, together with its known biological and proprioceptive benefits, supports the preservation of the natural dentition.
摘要：
背景：牙齿缺失与认知能力下降有关，但涉及言语和心理社会损害的潜在机制仍不清楚.
目的：调查与牙齿缺失相关的言语和心理障碍对香港老年人认知功能的影响。
方法：将76名年龄在51-92岁之间的广东话参与者分为三组：全口义齿（CD）患者，部分缺牙患者的咬合牙齿对少于10对（OU<10），和至少10个咬合牙齿对（OU≥10）。使用蒙特利尔认知评估香港版评估认知功能，一分钟的口语流利任务和Hayling句子完成测试。使用人工智能语音识别算法和自行设计的语音问卷进行客观和主观语音评估。牙齿脱落对心理社会状况的影响通过“眼睛阅读测试”和自行设计的问卷进行了评估。统计分析(单向方差分析，ANCOVA,Kruskal-Wallis测试,进行Spearman相关性检验)。
结果：牙齿脱落与认知功能降低显着相关（p=.008），语音准确性（p=.018）和言语流畅性（p=.001）。认知功能与言语准确性之间存在相关性（p<0.0001）。三组之间在牙齿脱落相关的心理社会影响方面没有显着差异。
结论：虽然保证更大的样本量，这项初步研究强调，需要进一步研究言语在牙齿缺失和认知功能之间的关系中的作用。牙齿保留的潜在认知影响，连同其已知的生物学和本体感受益处，支持自然牙列的保存。
目的：调查与牙齿缺失相关的言语和心理障碍对香港老年人认知功能的影响。
方法：将76名年龄在51-92岁之间的广东话参与者分为三组：全口义齿（CD）患者，部分缺牙患者的咬合牙齿对少于10对（OU<10），和至少10个咬合牙齿对（OU≥10）。使用蒙特利尔认知评估香港版评估认知功能，一分钟的口语流利任务和Hayling句子完成测试。使用人工智能语音识别算法和自行设计的语音问卷进行客观和主观语音评估。牙齿脱落对心理社会状况的影响通过“眼睛阅读测试”和自行设计的问卷进行了评估。统计分析(单向方差分析，ANCOVA,Kruskal-Wallis测试,进行Spearman相关性检验)。
结果：牙齿脱落与认知功能降低显着相关（p=.008），语音准确性（p=.018）和言语流畅性（p=.001）。认知功能与言语准确性之间存在相关性（p<0.0001）。三组之间在牙齿脱落相关的心理社会影响方面没有显着差异。
结论：虽然保证更大的样本量，这项初步研究强调，需要进一步研究言语在牙齿缺失和认知功能之间的关系中的作用。牙齿保留的潜在认知影响，连同其已知的生物学和本体感受益处，支持自然牙列的保存。
