Orthognathic Speech Pathology: Phonetic Contrasts of Patients With Dentofacial Discrepancies With Pre- and Post-Treatment Analyses
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 180
- 试验地点
- 1
- 主要终点
- Change in Speech Distortion Phonemes over Time
研究概览
简要总结
The investigators are studying how speech is effected by jaw and tooth position in jaw surgery patients. Eighty percent of our jaw surgery patients have speech pathologies, compared to five percent of the general population, but speech pathologists do not understand why. The investigators hypothesize that open bites and underbites prevent most patients from being able to pronounce words normally and surgical correction will lead to improvement in speech. Patients will be audio recorded speaking and patients' tongue gestures ultrasound recorded before and after their jaw surgeries to observe what changes occur in their speech and tongue movements.
详细描述
Purpose: The investigators are studying how phoneme distortion is effected by jaw disproportions in dentofacial disharmony (DFD) patients and whether speech improves after orthognathic surgery and orthodontic treatment. Spectral moment and tongue gestural analysis are being used to mechanistically determine how jaw position effects speech. The investigators hypothesize that skeletal open and underbites contribute to phoneme distortion and tongue gestural changes that improve following surgical correction of jaw position. All DFD patients are already seeking treatment from orthodontics and oral surgery. The study will observe how their speech changes before and after treatment. There is no randomization or intervention involved.
Aim 1: Qualify the prevalence of auditory and visual speech distortions in the DFD population. Aim 2: Quantitatively evaluate the first spectral moment (kHz) of four articulating consonant sounds (/t/, /k/, /s/, and /?/ pronounced "sh"). Quantify and analyze the changes in speech distortions for orthognathic patients pre and post-operation. Aim 3: Evaluate tongue posture during speech with patients from Aim 2 pre and post-operation.
Participants:
Participants: Patients of the UNC dentofacial disharmony (DFD) clinic who have undergone orthognathic surgery for correction of jaw disharmonies.
Procedures (methods):
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 15 Years 至 40 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Jaw surgery patient at UNC with a skeletal open bite, underbite or overjet greater than 5mm.
- •Age 15-40 years
排除标准
- •Hearing loss
- •Learned English as a second language
- •Significant regional accent, as characterized by a speech pathologist
- •Developmental delay, performing several grade levels below age bracket
- •history of craniofacial disorder
- •genetic syndrome associated with known craniofacial presentation
- •history of craniofacial trauma
- •history of prior craniofacial surgery (excluding extractions and dental procedures)
- •Jaw surgery without fixed orthodontic appliances
研究组 & 干预措施
Dentofacial Disharmony Patients
Dentofacial disharmony patients who are seeking jaw surgery in UNC oral and maxillofacial surgery department and are seen in UNC orthodontic dentofacial disharmony clinic.
干预措施: Orthognathic surgery and Orthodontics (Other)
结局指标
主要结局
Change in Speech Distortion Phonemes over Time
时间窗: pre-operation through 9-15 months post-operation
Audio recordings of consonant phonemes will be quantitatively analyzed using spectral moment analysis yielding mean values.
Change in Quantitative Tongue Gestures over Time
时间窗: pre-operation through 9-15 months post-operation
Ultrasound analysis of tongue posture to quantitatively describe tongue position during speech.
次要结局
未报告次要终点