Background: Recording jaw movement rhythms in patients with jaw defects is challenging using conventional tracking devices. However, masticatory rhythm is crucial for masticatory performance and nutritional intake. Th...Background: Recording jaw movement rhythms in patients with jaw defects is challenging using conventional tracking devices. However, masticatory rhythm is crucial for masticatory performance and nutritional intake. This study aimed to explore the impact of using a maxillofacial prosthesis to restore masticatory rhythm in mandibulectomy patients with a novel wearable device. Methods: Twelve patients who underwent mandibulectomy and were rehabilitated with maxillofacial prosthesis were recruited. Chewing rate, cycle durations, coefficient of variation of cycle durations (CV), changing times of skin morphology on the back of the ear pinna area (SM), and masticatory performance were measured during gum chewing without and with a denture using a wearable jaw movement rhythm tracking device. A paired t-test and the Pearson correlation coefficient were used for statistical analysis. Results: The chewing rate increased by 8.6 cycles/min with dentures (P P = 0.01). The CV and SM decreased with dentures (P = 0.004 and P = 0.01, respectively). Significant correlations were found between the CV and SM without dentures (P = 0.004). Conclusion: 1. Wearing maxillofacial prostheses can improve masticatory rhythm in patients who undergo mandibulectomy with Eichner B2 occlusal supports. 2. The wearable device is available for measuring masticatory rhythm in patients with jaw defects in clinics. 3. Changing times of the skin morphology on the back of the ear pinna indicate jaw movement stability through a simpler process than the coefficient of variation of cycle durations.展开更多
目的对比分析颈动脉体瘤副神经节瘤(carotid body tumor,CBT)与头颈部非颈动脉体瘤副神经节瘤(非CBT)患者的临床特征。方法通过对郑州大学第一附属医院2014年1月至2021年12月收治的43例头颈部副神经节瘤患者的临床资料进行回顾,对比两...目的对比分析颈动脉体瘤副神经节瘤(carotid body tumor,CBT)与头颈部非颈动脉体瘤副神经节瘤(非CBT)患者的临床特征。方法通过对郑州大学第一附属医院2014年1月至2021年12月收治的43例头颈部副神经节瘤患者的临床资料进行回顾,对比两组患者的人口学特征、生活方式、临床特征、治疗及预后。结果CBT组患者女性更常见(P<0.05)。非CBT组患者吸烟史、饮酒史更常见(P<0.05)。非CBT组患者术前影像学检查诊断准确性较CBT组低(P<0.05)。非CBT组患者S-100的阳性表达率低于CBT组(P<0.05)。两组患者治疗均首选外科手术治疗。非CBT组术后并发症发生率(16.28%)高于CBT组(6.98%)(P<0.05)。结论头颈部副神经节瘤的预后与其发病部位相关;非CBT组患者影像学检查准确性较低,诊断更困难,术后并发症发生率更高。展开更多
文摘Background: Recording jaw movement rhythms in patients with jaw defects is challenging using conventional tracking devices. However, masticatory rhythm is crucial for masticatory performance and nutritional intake. This study aimed to explore the impact of using a maxillofacial prosthesis to restore masticatory rhythm in mandibulectomy patients with a novel wearable device. Methods: Twelve patients who underwent mandibulectomy and were rehabilitated with maxillofacial prosthesis were recruited. Chewing rate, cycle durations, coefficient of variation of cycle durations (CV), changing times of skin morphology on the back of the ear pinna area (SM), and masticatory performance were measured during gum chewing without and with a denture using a wearable jaw movement rhythm tracking device. A paired t-test and the Pearson correlation coefficient were used for statistical analysis. Results: The chewing rate increased by 8.6 cycles/min with dentures (P P = 0.01). The CV and SM decreased with dentures (P = 0.004 and P = 0.01, respectively). Significant correlations were found between the CV and SM without dentures (P = 0.004). Conclusion: 1. Wearing maxillofacial prostheses can improve masticatory rhythm in patients who undergo mandibulectomy with Eichner B2 occlusal supports. 2. The wearable device is available for measuring masticatory rhythm in patients with jaw defects in clinics. 3. Changing times of the skin morphology on the back of the ear pinna indicate jaw movement stability through a simpler process than the coefficient of variation of cycle durations.
文摘目的对比分析颈动脉体瘤副神经节瘤(carotid body tumor,CBT)与头颈部非颈动脉体瘤副神经节瘤(非CBT)患者的临床特征。方法通过对郑州大学第一附属医院2014年1月至2021年12月收治的43例头颈部副神经节瘤患者的临床资料进行回顾,对比两组患者的人口学特征、生活方式、临床特征、治疗及预后。结果CBT组患者女性更常见(P<0.05)。非CBT组患者吸烟史、饮酒史更常见(P<0.05)。非CBT组患者术前影像学检查诊断准确性较CBT组低(P<0.05)。非CBT组患者S-100的阳性表达率低于CBT组(P<0.05)。两组患者治疗均首选外科手术治疗。非CBT组术后并发症发生率(16.28%)高于CBT组(6.98%)(P<0.05)。结论头颈部副神经节瘤的预后与其发病部位相关;非CBT组患者影像学检查准确性较低,诊断更困难,术后并发症发生率更高。
