Statement of problem

Edentulism has been associated with sensoneurinal hearing reduction, but whether hearing is improved by the provision of an implant-retained overdenture is unclear.

Purpose

The purpose of this pilot clinical study was to provide completely edentulous participants with implant-retained complete overdentures and to evaluate the effect on their hearing ability by pure tone audiometry (PTA).

Material and methods

Fifteen completely edentulous first-time denture wearers were enrolled, and their hearing was evaluated with PTA for air conduction and bone conduction at 6 time intervals: before denture insertion (R1), after denture insertion (R2), 1 month after denture insertion (R3), on the day of suture removal after implant surgery (R4), 3 months later, at the time of loading (R5), and 1 month after implant loading (R6). The Friedman test was performed to find significant differences in the measurements from the completely edentulous state to rehabilitation with a complete denture and an implant-retained complete overdenture. The post hoc Tukey test was used for multiple comparisons (α=.05).

Results

Significant differences were found between R1 and R6, between R2 and R6, between R3 and R6, and between R4 and R6 in PTA in multiple comparisons (P<.05). The post hoc test revealed significant difference in the R1and R6 and R3 and R6 pairs (P<.05) at 500 Hz, 1 kHz, and 8 kHz, whereas only between R1 and R6 (P<.05) at 2 kHz for the air conduction test. In the bone conduction test, a significant difference was observed between the R1 and R6 and the R3 and R6 pairs (P<.05) at 500 Hz and 4 kHz, but only between R3 and R6 (P<.05) at 1 kHz and 2 kHz.

Conclusions

The study showed that the placement of dental implants improved hearing acuity via the acoustic pathway through air and bone conduction.

中文翻译：

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保留植入物的全口义齿对无牙颌患者听力的影响：一项临床先导研究

问题陈述

自闭症与神经膜神经递质减少有关，但尚不清楚是否通过保留植入物覆盖的覆盖义齿可改善听力。

目的

这项初步临床研究的目的是为完全无牙的参与者提供保留植入物的完整义齿，并通过纯音测听（PTA）评估其对听力的影响。

材料与方法

招募了15名完全无牙的首次义齿佩戴者，并按以下6个时间间隔用PTA评估了他们的听力：空气传导和骨骼传导：义齿插入之前（R1），义齿插入之后（R2），义齿插入之后1个月（R3） ），在植入物手术后的缝合线移除当天（R4），3个月后，在加载时（R5）和在植入物加载后1个月（R6）。进行弗里德曼测试的目的是发现从完全缺牙状态到使用全口义齿和保留植入物的全口义齿进行康复的测量值之间的显着差异。事后Tukey测试用于多个比较（α= .05）。

结果

在多次比较中，在PTA中发现R1和R6之间，R2和R6之间，R3和R6之间以及R4和R6之间存在显着差异（P <.05）。事后测试显示，在500 Hz，1 kHz和8 kHz时，R1和R6以及R3和R6对之间存在显着差异（P <.05），而对于1 kHz和2 kHz，仅R1和R6之间（P <.05）空气传导测试。在骨传导测试中，在500 Hz和4 kHz时，在R1和R6与R3和R6对之间观察到了显着差异（P <.05），但在1 kHz时仅在R3和R6之间（P <.05）被观察到和2 kHz。

结论

研究表明，通过空气和骨骼传导的声学途径，植入牙齿植入物可改善听觉敏锐度。