AlviArmani • Research Institute White Paper
Temple Angle Geometry in Hair Transplantation
An Evidence-Based and Anthropometric Framework for Rounded vs. Sharp Design
Summary
Hairline design is central to aesthetic success in hair transplantation. While the frontal hairline receives primary attention, the temple angle—the lateral transition between frontal and temporal hairline—plays a decisive role in facial framing, gender expression, ancestry signaling, and perceived youthfulness.
This white paper presents a structured framework integrating aesthetic science, anthropometry, ancestry norms, and surgical biomechanics, and distinguishes the clinical implications of rounded vs. sharp temple angle geometry.
Key Takeaways
- Temple geometry is high-leverage: small changes in the temple angle can create disproportionate improvements in perceived facial harmony.
- Rounded vs. sharp is a spectrum: rounded angles more often map to youthfulness/femininity, sharper angles to masculinity/structural maturity.
- Anthropometry + phenotype matter: optimal design depends on facial proportions and ancestry-linked craniofacial morphology.
- Technique is the bottleneck: temple work is underutilized because exit angles, directionality, and gradients require advanced micro-placement control.
Who This Is For
- Patients: to understand why temples influence facial framing, age perception, and naturalness.
- Clinicians: to adopt a structured planning approach for temple architecture and gradient engineering.
- Consultants/teams: to improve education during consults and align expectations around temple refinement.
- Researchers: to connect craniofacial anthropology and perceptual aesthetics with hairline design.
How to Use This White Paper
- Start with the definition: the temple angle is the lateral transition between the frontal and temporal hairline.
- Use the spectrum: classify the patient’s natural architecture as rounded, sharp, or intermediate.
- Plan with constraints: match phenotype, proportions, and patient goals while respecting technical limits of placement.
Note: This page is a summary layer; the full PDF contains the complete framework, tables, and references.
Figures
In the paper, rounded temple architecture is associated with smoother curvature and minimal lateral recession, while sharper architecture emphasizes a defined angular transition and increased lateral recession.
Full White Paper (PDF)
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Authors
AlviArmani US Clinical Group | Craig Barton, MD • Michelle Ischayek, DO • Payam Afshar, MD • Kristen Rogers, MD • Ashkan B. Hayatdavoudi, MD, JD
Part of the Hairline Design series on facial framing, natural hairline creation, temple architecture, and hair restoration planning.