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04:11
The Establishment of a Murine Maxillary Orthodontic Model
Published on: October 27, 2023
Masticatory function and maturation of the jaw-opening reflex.
Chidsanu Changsiripun1, Tadachika Yabushita, Kunimichi Soma
1Department of Orofacial Development and Function, Tokyo Medical and Dental University, Tokyo, Japan. chidorts@tmd.ac.jp
The Angle Orthodontist
|February 17, 2009
Summary
Liquid-diet feeding during growth impairs jaw-opening reflex (JOR) maturation in rats. This functional change may negatively impact adult masticatory performance.
Area of Science:
- Neuroscience
- Developmental Biology
- Oral Physiology
Background:
- Masticatory function is crucial for proper oral development.
- Dietary consistency can influence the maturation of neuromuscular reflexes.
Purpose of the Study:
- To investigate the effect of a liquid diet on jaw-opening reflex (JOR) maturation.
- To test if altered masticatory function during growth impacts JOR development.
Main Methods:
- Wistar rats were fed either solid or liquid diets post-weaning.
- Jaw-opening reflex (JOR) was recorded in digastric muscles at 5, 9, and 13 weeks.
- JOR was elicited via electrical stimulation of the inferior alveolar nerve.
Main Results:
- Liquid-diet fed rats exhibited significantly smaller JOR peak-to-peak amplitude.
- Longer JOR latency was observed in the liquid-diet group.
- JOR duration did not significantly differ between groups.
Conclusions:
- Liquid-diet feeding during growth may hinder JOR maturation.
- Impeded JOR maturation could affect adult masticatory performance.
- Masticatory functional changes impact reflex development.
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