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Faculty of Dentistry
Document Details
Document Type
:
Article In Journal
Document Title
:
MUSCLE ACTIVITY OF MANDIBULAR UNILATERAL DISTAL EXTENSION RPDS WEARERS WITH TWO DIRECT RETAINERS
MUSCLE ACTIVITY OF MANDIBULAR UNILATERAL DISTAL EXTENSION RPDS WEARERS WITH TWO DIRECT RETAINERS
Document Language
:
English
Abstract
:
The aim of the present study was to evaluate and investigate the activity of masticatory muscles Masseter and Anterior fibers of Temporalis) in ten male patients wearing mandibular distal exten-sion removable partial denture with two different direct retainers. They were divided into two groups RPI clasp assembly was used for group I and combination clasp assembly (Modified T or half T buccally and half Aker's lingually) for group II Computerized Electromyography (Cad Wel Execl high power EMG/EP instrument U.S.A.) recorded the activity of Masseter and Temporalis muscles during maximum clenching before denture insertion and six times after insertion with an in-terval or one month each. Results showed a jaw jerk reflex was recorded in all patients wearing RPD with RPI clasp in the second month of follow up , which was not recorded with the group 11 jaw jerk reflex is typical a re-action of periodontal receptor with orthodontic movement which occur when load is not regular. In the second month a significance in Mean Voltage Amplitude, Root Mean Square RMS) and Power at (P-value <0.00 I) was found .There was a significant difference in the muscle activity between the IWO types of retainers used for this study. It could be concluded that EMG instrument can be used as a diagnostic aid to record and detect a jaw jerk reflex with different types of prostheses and to select the proper direct retainer for RPD. Combination clasp assembly is superior to RPI assembly as direct retainer for unilateral distal extcnsion RPD. *
ISSN
:
0
Journal Name
:
egyptian dental journal
Volume
:
50
Issue Number
:
3
Publishing Year
:
2004 AH
2004 AD
Article Type
:
Article
Added Date
:
Friday, January 4, 2008
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
فهد باناصر
banasr, fahad
Investigator
Doctorate
fbanasr@kau.edu.sa
Files
File Name
Type
Description
MUSCLE ACTIVITY OF MANDIBULAR UNILATERAL DISTAL EXTENSION RPDS WEARERS WITH TWO DIRECT RETAINERS.pdf
pdf
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