Malocclusion, Angle Class II, Malocclusion, Angle Class III
Conditions
Keywords
Midface, Eye tracking, Aesthetic evaluation, Perception, morphology
Brief summary
Facial aesthetics has always been a complex and subjective concept. The overall facial harmony, along with lip protrusion, which is often a focus for orthodontists, requires evaluation from multiple perspectives. The viewing angle also influences the assessment of facial aesthetics, particularly the judgment of lip protrusion. This study aims to explore the differences in facial fixation patterns and aesthetic evaluations among different populations at specific viewing angles by using digital models to simulate various perspectives.
Detailed description
In the analysis of facial aesthetics, the 45° profile has a unique advantage in evaluating lip protrusion, zygomatic fullness, and contour curve. Compared to the frontal view, this angle provides a more three-dimensional and deeper perspective. In a previous study, the research group found that the shape of the midface area at 45° influences the evaluation of lip protrusion. In this study, a digital model was used to simulate the protrusion of different midface areas in order to explore the differences in facial fixation patterns and aesthetic evaluations among various individuals at 45°. Based on data from individuals who showed significant improvement in frontal and profile beauty before and after clinical treatment, the study added an evaluation of beauty and lip position from the 45° profile. This aims to provide a reference for the subsequent establishment of a 45° profile analysis.
Interventions
BEHAVIORALlanguage
Language cues are used to provide participants with psychological suggestions in order to achieve the goal of shifting their focus in gaze patterns.
Sponsors
Stomatological Hospital Affiliated with Fujian Medical University
Linyu Xu
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
Orthodontist inclusion criteria: ① With dental doctor qualification certificate; ② At least 2 years of professional training in orthodontics. Inclusion criteria for orthodontic patients: ① Receiving orthodontic treatment for more than 1 year; ② Volunteer to participate in the study; ③ Native language is Chinese, can understand the prompt language and normal communication. General adult inclusion criteria: ① have not experienced orthodontic treatment or have no need for orthodontic treatment; ② Do not engage in stomatology industry, have not studied stomatology specialty; ③ Native language is Chinese, can understand the prompt language and normal communication.
Exclusion criteria
① have visual impairment (such as color blindness, high myopia); ②Have psychological problems (such as autism, schizophrenia); ③ Recent use of alcohol, or long-term fatigue, anxiety; Current use of any medication that may affect cognitive ability; ⑤ Use mascara, contact lenses or small frame height glasses
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Total fixation duration of area of interest | The duration of the experiment for each participant does not exceed 10 minutes. A random selection of 10 participants will immediately undergo a repeat experiment after the first round to verify the reliability of the participants. | The facial images used as stimulus materials are divided into several regions, with the fixation duration in each area of interest serving as the primary measurement. Changes in fixation duration represent a shift in the focus of attention. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Eye movement track | The duration of the experiment for each participant does not exceed 10 minutes.A random selection of 10 participants will immediately undergo a repeat experiment after the first round to verify the reliability of the participants. | The specific patterns of attention shift will be further observed through the changes in eye-tracking trajectories. |
Countries
China
Outcome results
None listed