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Smile analysis in different facial patterns and its correlation with underlying hard tissues
Neha Grover1, D N Kapoor, Santosh Verma
1Nora Medical Polyclinics, Tower 4. Marks and Spencer Building, No. 106, Abu Dhabi, United Arab Emirates, Ortho.neha@gmail.com.
Progress in Orthodontics
|September 6, 2015
Summary
Facial growth patterns significantly influence smile characteristics, with distinct differences observed between males and females. Vertical growth patterns increase vertical smile dimensions while decreasing transverse dimensions.
Area of Science:
- Dentofacial Orthopedics
- Orthodontics
- Facial Growth Analysis
Background:
- Inherent facial growth patterns can significantly affect smile aesthetics.
- Discrepancies in maxillary growth, particularly vertical growth, can alter the relationship between the occlusal plane and lower lip curvature during smiling.
- Understanding the influence of growth patterns and underlying hard tissues on smile characteristics is crucial for orthodontic and aesthetic evaluations.
Purpose of the Study:
- To compare smile characteristics across different facial growth patterns.
- To identify and analyze any sexual dimorphism in smile parameters.
- To correlate specific smile features with underlying hard tissue cephalometric measurements.
Main Methods:
- A sample of 150 individuals aged 17-25 years was selected.
- Lateral cephalometric radiography and videography were used to capture facial structure and posed smiles.
- Subjects were categorized into horizontal, average, and vertical growth patterns based on cephalometric analysis.
Main Results:
- Males exhibited significantly higher mean smile parameters than females across all growth patterns.
- Vertical facial growth patterns were associated with increased incisal display, interlabial gap, and occlusal plane angle.
- Vertical growers showed increased vertical dimension parameters and decreased transverse dimension parameters, including posterior corridors.
Conclusions:
- Facial growth patterns exert a significant influence on smile parameters.
- Sexual dimorphism is evident in smile characteristics.
- Most angular and linear cephalometric parameters, with exceptions, were found to influence smile characteristics.
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