Preferred Chewing Side, Symmetry of Bite Force and Occlusal Contact Area of Subjects With Different Craniofacial Vertical Dimensions
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 86
- 试验地点
- 1
- 主要终点
- Masticatory movements during mastication
研究概览
简要总结
The purpose of this study is to evaluate chewing side preference, and lateral asymmetry of occlusal contact area and bite force of individuals with different craniofacial patterns
详细描述
Dolichofacial subjects presents poorer mechanical advantage, less efficiency in masticatory muscles during mastication and in generating bite force, smaller occlusal contact area and masticatory capacity when compared to brachyfacial individuals.
Wide, bilateral chewing cycles were related to better masticatory performance, however, unilateral chewing was reported to be very common in population, and it has been associated to lateral asymmetry on bite force and occlusal contact area.
It has been reported that dolichofacial subjects need greater muscular effort during mastication when compared to meso and brachyfacial subjects. This may cause functional overloading of weaker masticatory muscles, and may lead to functional asymmetries.
研究设计
- 研究类型
- Observational
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 32 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Full dentition, good general and oral health
排除标准
- •Facial deformities
- •Severe malocclusion
- •History of signs and symptoms of temporomandibular disorder
- •History of parafunctions
- •History of maxillofacial surgery or jaw injuries and orthodontic treatment concluded in the last 2 years
结局指标
主要结局
Masticatory movements during mastication
时间窗: 2 hours
A jaw tracking device was positioned on subjects face, who were asked to chew an artificial material in their habitual way. Tracings of jaw lateral movements during mastication were analyzed to classify in which side each chewing stroke was taken. If 80 percent or more chewing cycles were classified as left or right, the subjects were considered as unilateral chewer.
次要结局
- Bite force and occlusal contact area(2 hours)