Aesthetic Dentistry · Digital Workflow

Digital
Smile Design

From photographic diagnosis to aesthetic validation: a rigorous method, a predictable trajectory.
By Hugo Philippe Fusaro Clinical article · Digital Smile Design · 2026
Before and after comparison, Smile Design analysis
Actual
Simulation
02
Objectives

Why Smile Design

Four complementary goals that structure the modern aesthetic approach and make it reproducible, case after case.

I
Analyze aesthetics
Assess the smile systematically and objectively, using measurable landmarks.
II
Plan the treatment
A predictive, controlled approach to aesthetic correction, step by step.
III
Improve communication
Transparent, visual dialogue with the patient and the laboratory at every stage.
IV
Validate the result
Prior visualization and patient approval before any irreversible procedure.
Every aesthetic success rests on prior planning.1,5
03
Foundation

Clinical photography6

The objective, reproducible foundation of aesthetic diagnosis in dentistry.

Clinical photography forms the objective basis of any aesthetic analysis. It allows an in-depth reading of facial and dental characteristics, and serves as a communication medium between the clinician, the laboratory and the patient.

A standardized series (controlled distance, focal length and exposure) guarantees the reproducibility of the analysis and the reliability of the final design.

Video analysis complements photography by revealing the natural dynamics of the smile: phonation, lip animation, and spontaneous movements that still images alone cannot capture.

The quality of the photographs directly determines the quality of the final design.
04
Diagnosis

The three key photographs

The fundamental basis of aesthetic diagnosis and smile analysis: each one answers a specific clinical question.

The visuals below illustrate three distinct cases for educational purposes: each type of photograph corresponds to a different diagnostic reading.
Natural smile
I
Photo 01 · Natural smile
Spontaneous expression
  • Assessment of the smile line
  • Analysis of symmetry and the aesthetic plane
  • Observation of lip dynamics
  • Overall perception of the smile within the face
Smile with cheek retractors
II
Photo 02 · Smile with retractors
Full view of the arch
  • Width-to-height proportions of the teeth
  • Study of tooth axes and the midline
  • Assessment of embrasures and contacts
  • Complete visualization of the arch
Smile without retractors
III
Photo 03 · Smile without retractors
Tooth-lip relationship
  • Quantification of incisal display when smiling
  • Assessment of the smile line and lip support
  • Analysis of the tooth-lip relationship in animated posture
  • Essential reference for anterior design
Technical protocol. A 105 mm lens at a distance of 1 to 1.5 m from the patient. This setup guarantees faithful reproduction of proportions without focal distortion.6
05
Analysis

Advanced digital analysis4

DSD relies on a rigorous reading of facial landmarks to align the prosthetic project with the architecture of the face.

Digital Smile Design integrates the full set of anatomical references to align the prosthetic project with the patient's facial architecture. Six landmarks structure the analytical reading of a smile.
DSD analysis with annotated facial landmarks
Six landmarks analyzed
  • Interpupillary line
  • Midline
  • Incisal curve
  • Occlusal plane
  • Facial shape
  • Tooth proportions
06
Methodology

2D and 3D: two complementary approaches

An initial flat reading, then volumetric modeling. Each answers a different question: how they connect determines the result.

I · 2D approach

Initial visualization
on photographs

  • Rapid identification of proportions
  • Reading of aesthetic lines
  • Simplified patient communication
  • Validation of the project's direction
II · 3D approach

Volumetric modeling
under real conditions

  • Adaptation to actual tooth volumes
  • Surgical and prosthetic precision
  • Validation under clinical conditions
  • Direct transfer to 3D printing and the mock-up
2D opens the conversation. 3D makes it real.8 Their integration within a single workflow determines the quality of the final result.3
· Comparative reading ·
Actual vs 3D comparison, symbolic 2D vs 3D illustration
07
Process

The integrated clinical workflow7

Five steps, from photographic diagnosis to final patient validation.

I
Digital clone
Capture of the essential clinical images following a standardized protocol.
II
3D design
Creation of the aesthetic project in CAD software.
III
3D printing
Physical modeling and fabrication in the laboratory.
IV
Mock-up
Intraoral try-in of the design: the simulation becomes tangible.
V
Validation
Final agreement with the patient before the definitive procedure.
08
Customization

Complementary photographs

Additional views that refine the design and allow advanced customization of the aesthetic project.

I
Profile view
Analysis of facial convexity and the aesthetic profile.
II
Three-quarter view
Assessment of lateral volumes and 3D harmony.
III
Smile video
Capture of facial dynamics in motion.
IV
Dental macro
Details of surface characteristics and texture.
· Block A ·
Extraoral views
The smile in its facial context
Three-quarter view of the face
The smile in its facial context
Three-quarter view, symmetrical face
Reading of lateral volumes
· Block B ·
Intraoral views
Dental arrangement and surface texture
Dental arch 1
Lower arch arrangement
Dental arch 2
Upper arch arrangement
Dental macro photograph
Surface and texture details
09
Summary

Three pillars, one method

What the photographic and digital approach concretely brings to each clinical case.

· I ·
Precision4
An objective, measurable diagnosis based on standardized photographic analysis.
· II ·
Predictability5
A controlled result, validated before any irreversible procedure.
· III ·
Communication2
Improved clinician-laboratory-patient dialogue at every stage.
Read the smile before designing it, master the result before producing it.
10
Sources

Scientific references

All methodological and clinical statements in this presentation are supported by recent peer-reviewed sources (PubMed). Each number N in the document points back here.

  1. Saini RS, Kaur K, Gurumurthy V, Binduhayyim RIH, Kaushik A, Kuruniyan MS, Alarcón-Sánchez MA, Heboyan A. Impact of artificial intelligence-based digital smile design on patient and clinician satisfaction and facial esthetic outcomes: A systematic review and meta-analysis. Digital Health. 2025;11. PMC12536214
  2. Cureus systematic review. Digital Smile Design and Patient-Centered Outcomes in Esthetic Restorative Dentistry: A Systematic Review. Cureus. Published November 29, 2025. Cureus
  3. Jain A, Bhushan P, Mahato M, Solanki BB, Dutta D, Hota S, Raut A, Mohanty AK. The Recent Use, Patient Satisfaction, and Advancement in Digital Smile Designing: A Systematic Review. Cureus. 2024;16(6):e62459. PMID 39022468
  4. Alharkan HM. Integrating digital smile design into restorative Dentistry: A narrative review of the applications and benefits. Saudi Dent J. 2024;36(4):561-567. PMID 38690398
  5. Luniyal C, Shukla AK, Priyadarshi M, Ahmed F, Kumari N, Bankoti P, Makkad RS. Assessment of Patient Satisfaction and Treatment Outcomes in Digital Smile Design vs. Conventional Smile Design: A Randomized Controlled Trial. J Pharm Bioallied Sci. 2024;16(Suppl 1):S669-S671. PMID 38595496
  6. Banditsaowapak P, Cheng JH-C, Chen DD-S, Chou MY. Three-dimensional analysis of posed smile in adults: A scoping review. J Dent Sci. 2024;19(2):773-786. PMID 38618097
  7. Coachman C, Bohner L, Jreige CS, Sesma N, Calamita M. Interdisciplinary guided dentistry, digital quality control, and the "copy-paste" concepts. J Esthet Restor Dent. 2021;33(7):988-995. PMID 33899323
  8. Revilla-León M, Gómez-Polo M, Att W, Kois JC. Parameters to Improve the Accuracy of Intraoral Scanners for Fabricating Tooth-Supported Restorations: A Review. J Esthet Restor Dent. 2025. DOI 10.1111/jerd.13364

Presentation document for educational purposes. The cited references are no substitute for reading the original sources in full or for case-by-case clinical evaluation.

Hugo Philippe FUSARO

Digital dental design · CAD-CAM workflow · Exocad Trainer

Emailhfusaropro@gmail.com Phone+33 6 15 39 70 53 LinkedInView profile →
Hugo Philippe Fusaro