Dynamic Effect of Occlusal Vertical Dimension on Lower Facial Form and Lip Positions
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 32
- 试验地点
- 1
- 主要终点
- Upper lip vermilion height
研究概览
简要总结
The purpose of this study is to evaluate the effect of increased/decreased occlusal vertical dimension (OVD) on lower facial form and lip position, to analyze variations across gender groups and to analyze variations across age groups.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 21 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Complete edentulous with complete dentures or overdentures
排除标准
- •Gross facial asymmetry
- •A history of surgery in the facial area
- •A history of neurologic disorders
- •Ill-fitting dentures
- •Dentures with inaccurate occlusal vertical dimension (OVD)
- •Inability or unwillingness to smile
- •Allergy to nitrile, vinyl polysiloxane (VPS) material or photopolymer resins.
- •Presence of facial hair that would interfere with marking reference points on the face
- •Severe class II or class III malocclusion
研究组 & 干预措施
Occlusal Vertical Dimension Modification (-2 mm)
干预措施: Occlusal Vertical Dimension Modification (-2 mm) (Device)
Occlusal Vertical Dimension Modification (0 mm)
干预措施: Occlusal Vertical Dimension Modification (0 mm) (Device)
Occlusal Vertical Dimension Modification (+2mm)
干预措施: Occlusal Vertical Dimension Modification (+2mm) (Device)
Occlusal Vertical Dimension Modification (+4mm)
干预措施: Occlusal Vertical Dimension Modification (+4mm) (Device)
Occlusal Vertical Dimension Modification (-4mm)
干预措施: Occlusal Vertical Dimension Modification (-4mm) (Device)
结局指标
主要结局
Upper lip vermilion height
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
Lower lip vermilion height
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
The upper lip margin on the central incisor to the gingival margin of maxillary central incisor
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
Maxillary central incisor length
时间窗: From time of denture placement to about 24 hours after denture placement (depending on patient availibity)
Interlabial gap height
时间窗: From time of denture placement to about 24 hours after denture placement (depending on patient availability)
Intercommisural width
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
Distance from Maxillary incisal edge to upper lip in millimeters
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
Distance from Maxillary incisal edge to lower lip in millimeters
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
Upper lip length
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
The lower lip margin on the central incisor to the gingival margin of mandibular central incisor
时间窗: denture placement to about 24 hours after denture placement (depending on patient availability)
次要结局
- Upper lip vermilion height(denture placement to about 24 hours after denture placement (depending on patient availability))
- Maxillary central incisor length(denture placement to about 24 hours after denture placement (depending on patient availability))
- Interlabial gap height(denture placement to about 24 hours after denture placement (depending on patient availability))
- Intercommisural width(denture placement to about 24 hours after denture placement (depending on patient availability))
- Maxillary incisal edge to upper lip(denture placement to about 24 hours after denture placement (depending on patient availability))
- Maxillary incisal edge to lower lip(denture placement to about 24 hours after denture placement (depending on patient availability))
- Upper lip length(denture placement to about 24 hours after denture placement (depending on patient availability))
- Lower lip vermilion height(denture placement to about 24 hours after denture placement (depending on patient availability))
- The upper lip margin on the central incisor to the gingival margin of maxillary central incisor(denture placement to about 24 hours after denture placement (depending on patient availability))
- The lower lip margin on the central incisor to the gingival margin of mandibular central incisor(denture placement to about 24 hours after denture placement (depending on patient availability))
研究者
Maria D Gonzalez
Associate Professor
The University of Texas Health Science Center, Houston