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弹性丙烯酸树脂对种植体支持的下颌覆盖义齿咀嚼肌活动的影响：一项对照临床试验。

The effect of flexible acrylic resin on masticatory muscle activity in implant-supported mandibular overdentures: a controlled clinical trial.

作者信息

Ibraheem Eman Mostafa Ahmed, Nassani Mohammad Zakaria

机构信息

Fixed and Removable Prosthodontics Department, Oral and Dental Research Division, National Research Centre, Giza, Egypt.

Department of Prosthetic Dental Sciences, Al Farabi College for Dentistry and Nursing, Riyadh, Saudi Arabia.

出版信息

Electron Physician. 2016 Jan 15;8(1):1752-8. doi: 10.19082/1752. eCollection 2016 Jan.

DOI:10.19082/1752
PMID:26955445
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4768924/
Abstract

BACKGROUND

It is not yet clear from the current literature to what extent masticatory muscle activity is affected by the use of flexible acrylic resin in the construction of implant-supported mandibular overdentures.

OBJECTIVE

To compare masticatory muscle activity between patients who were provided with implant-supported mandibular overdentures constructed from flexible acrylic resin and those who were provided with implant-supported mandibular overdentures constructed from heat-cured conventional acrylic resin.

METHODS

In this clinical trial, 12 completely edentulous patients were selected and randomly allocated into two equal treatment groups. Each patient in Group 1 received two implants to support a mandibular overdenture made of conventional acrylic resin. In Group 2, the patients received two implants to support mandibular overdentures constructed from "Versacryl" flexible acrylic resin. The maxillary edentulous arch for patients in both groups was restored by conventional complete dentures. For all patients, masseter and temporalis muscle activity was evaluated using surface electromyography (sEMG).

RESULTS

The results showed a significant decrease in masticatory muscle activity among patients with implant-supported mandibular overdentures constructed from flexible acrylic resin.

CONCLUSION

The use of "Versacryl" flexible acrylic resin in the construction of implant-supported mandibular overdentures resulted in decreased masticatory muscle activity.

摘要

背景

目前的文献尚不清楚在种植体支持的下颌覆盖义齿制作中，使用柔性丙烯酸树脂对咀嚼肌活动的影响程度。

目的

比较使用柔性丙烯酸树脂制作的种植体支持的下颌覆盖义齿患者与使用热固化传统丙烯酸树脂制作的种植体支持的下颌覆盖义齿患者的咀嚼肌活动情况。

方法

在这项临床试验中，选择12名全口无牙患者并随机分为两个相等的治疗组。第1组的每位患者植入两颗种植体以支持由传统丙烯酸树脂制成的下颌覆盖义齿。在第2组中，患者植入两颗种植体以支持由“Versacryl”柔性丙烯酸树脂制成的下颌覆盖义齿。两组患者的上颌无牙弓均用传统全口义齿修复。对所有患者，使用表面肌电图（sEMG）评估咬肌和颞肌的活动。

结果

结果显示，使用柔性丙烯酸树脂制作的种植体支持的下颌覆盖义齿患者的咀嚼肌活动显著降低。

结论

在种植体支持的下颌覆盖义齿制作中使用“Versacryl”柔性丙烯酸树脂会导致咀嚼肌活动降低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/81b40c63c3c6/EPJ-08-1752-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/d6a0f9bcd6dd/EPJ-08-1752-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/ebeb1aacbcf5/EPJ-08-1752-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/81b40c63c3c6/EPJ-08-1752-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/d6a0f9bcd6dd/EPJ-08-1752-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/ebeb1aacbcf5/EPJ-08-1752-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/67a4/4768924/81b40c63c3c6/EPJ-08-1752-g003.jpg

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J Int Soc Prev Community Dent. 2015 Sep-Oct;5(5):365-71. doi: 10.4103/2231-0762.165928.
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