Smile Design

Smile design is a personalized aesthetic and functional planning process in which the color, shape, size, alignment of the teeth, gingival levels, and their relationship with the lips are evaluated collectively. It does not refer to a single standalone procedure.

In some patients, tooth whitening or limited composite bonding alone may be sufficient. In other cases, porcelain laminate veneers, ceramic restorations, orthodontic treatment, periodontal contouring, or missing tooth treatments may be evaluated together.

Short answer: Smile design is not a standardized procedure where the exact same tooth form is applied to everyone. It is the process of determining appropriate treatment options by evaluating the patient’s existing dental structure, facial proportions, lip dynamics, oral health, and expectations.

The goal in smile design is not to create the whitest or most symmetrical teeth possible. The objective is to ensure that the teeth look balanced with the face, lips, and gums, preserve existing healthy tissues, and address aesthetic expectations alongside functional requirements.

At ON7 Clinic, the necessity of the procedures to be applied is evaluated individually when planning smile design. It is not necessary to place crowns or apply multiple treatments simultaneously in every patient.

What Is Smile Design?

Smile design is the clinical and aesthetic evaluation of the tooth and gingival structure visible during a patient’s smile.

In this approach, not only the appearance of the anterior teeth is examined. The occlusal relationship of the teeth, masticatory forces, existing restorations, periodontal health, lip dynamics, and the preservation of healthy dental tissue are also incorporated into the planning.

The primary conditions that can affect smile appearance include:

• Tooth discolorations
• Minor fractures and wear
• Interdental spacing (diastemas)
• Discrepancies in tooth dimensions or forms
• Mild or advanced alignment problems
• Color or form disharmonies in old fillings and crowns
• Asymmetries in gingival levels
• Missing teeth
• Excessive gingival display during smiling (gummy smile)

The presence of multiple issues does not always mean that multiple procedures will be performed. Treatment should be determined from among the most conservative and clinically appropriate options.

Core approach: Smile design is not a “veneer package,” but a diagnostic planning process that determines which procedure is genuinely necessary.

Which Elements Are Evaluated in Smile Design?

The appearance of a smile does not consist solely of tooth shade. Color, form, proportion, periodontal, and lip relationships must be evaluated together.

Tooth Color and Surface Texture

The shade of teeth naturally varies from person to person. In shade evaluation, not only whiteness is considered, but also translucency, surface texture, adjacent teeth, and existing restorations.

Tooth whitening can lighten the shade of natural teeth. However, it does not alter the color of restorations such as porcelain crowns, laminate veneers, and composite fillings. Therefore, if existing restorations are present in the mouth, shade planning must be scheduled according to the sequence of treatment.

Shade selection is performed by collectively evaluating adjacent natural teeth, existing restorations, facial and lip relationships, varying lighting conditions, and patient expectations.

Shape, Size, and Proportions of Teeth

The length and width of the teeth influence the overall appearance of the smile. However, having all teeth be perfectly identical may not produce a natural result. When determining tooth form, the following characteristics are evaluated:

• The patient’s existing dental anatomy
• Facial proportions
• Lip movements and dynamics
• Age
• Gingival level
• Form of adjacent teeth
• Expectation of a natural appearance

Gender alone should not be used as a clinical criterion to determine tooth form. The individual’s own anatomical characteristics are more decisive.

Smile Line and Lip Relationship

The smile line refers to the relationship between the incisal edges of the maxillary anterior teeth and the curvature of the upper border of the lower lip. The degree of tooth display during speech and smiling is also critical in planning.

Because the lips move differently during rest, speech, and smiling, making a decision based solely on a static photograph may not be sufficient. Video recordings or evaluations of different facial expressions can support the assessment.

Gingival Levels

While minor variations in the gingival margin may be considered natural in some patients, pronounced asymmetries can cause teeth to be perceived as having different sizes.

Before planning periodontal recontouring, gingival health, biotype/thickness, underlying bone levels, and biological width must be evaluated.

Not every discrepancy in gingival levels can be corrected with a simple laser procedure. Soft tissue contouring, connective tissue grafts, or different periodontal surgical approaches may be required.

Tooth Alignment and Occlusion

The spatial position of the teeth affects occlusal function just as much as smile aesthetics. Mild alignment variations can be masked with certain restorative methods. However, in severe crowding or malocclusion, orthodontic treatment may be more appropriate.

Porcelain laminate veneers or crowns do not move teeth within the alveolar bone; they can only alter visible morphology. Therefore, restorative treatment and orthodontic treatment should not be regarded as providing the identical biological outcome.

What Procedures Does Smile Design Encompass?

The procedures that can be performed within the scope of smile design are determined according to individual needs. Not every patient requires all of the following applications.

Tooth Whitening

Tooth whitening can be applied to lighten the shade of natural teeth. It can be evaluated for staining caused by tea, coffee, tobacco use, age-related darkening, and certain extrinsic discolorations.

Whitening is effective only on tooth shade. It does not alter the shape, spacing, or alignment of the teeth.

Transient sensitivity or gingival irritation may occur following the whitening procedure. How long the achieved shade is maintained varies according to dietary habits, oral hygiene, and individual physiological factors.

Composite Bonding

Composite bonding involves recontouring minor fractures, limited diastemas, or morphological variations using tooth-colored restorative materials.

The procedure is mostly performed directly chairside in the mouth and can be completed in select cases without removing tooth structure or with very minimal intervention.

Composite materials may lose surface luster over time, become stained, or chip. Polishing, repair, or replacement can be performed when necessary.

Porcelain Laminate Veneers

Porcelain laminate veneers are thin ceramic restorations bonded to the facial surfaces of teeth. They can be used to manage shade, form, surface texture, limited wear, and certain spacing problems.

Not every laminate application can be performed completely without tooth preparation. Depending on tooth position, restoration thickness, and the targeted form, a certain amount of preparation in the enamel tissue may be required.

Preparation performed on dental hard tissue can be an irreversible procedure. Therefore, the suitability of more conservative options—such as bonding, whitening, or orthodontics—should be evaluated before deciding on laminate veneers.

Ceramic and Zirconia Restorations

Full-coverage crowns may be evaluated on teeth that have advanced structural loss, carry large restorations, are fractured, or require the replacement of existing crowns.

Having aesthetic demands alone does not always necessitate placing full crowns on healthy teeth. If treatments that preserve more tooth structure are feasible, they should be evaluated first.

When selecting ceramic or zirconia materials, tooth position, aesthetic requirements, occlusal forces, and restoration thickness are taken into account.

Orthodontic Treatments

Orthodontic treatment enables the alignment of teeth within the bone and the correction of occlusal relationships.

Clear aligners or fixed orthodontic systems can be used for crowding, spacing, rotations, and certain bite discrepancies.

Orthodontics may extend total treatment duration; however, in suitable patients, it can reduce the need to replace healthy tooth structure with restorative procedures.

Gingival Aesthetics (Periodontal Plastic Surgery)

Gingival aesthetics encompasses the evaluation of discrepancies in gingival margins, teeth appearing short, or excessive gingival display during smiling.

The method to be applied is not determined solely by the amount of visible gingiva. Bone levels, gingival thickness, and periodontal health are evaluated together.

Missing Tooth Treatments

If missing teeth are present in the aesthetic zone, dental implants, resin-bonded bridges, conventional fixed bridges, or orthodontic space management can be evaluated.

Missing tooth treatment should not be planned independently of smile design. Gingival architecture, bone anatomy, the width of the edentulous space, and the condition of adjacent teeth influence the definitive restoration’s appearance.

In Which Cases Can Smile Design Be Evaluated?

Smile design evaluation can be performed in a broad group of patients who are dissatisfied with the appearance of their teeth or gums. However, this does not mean that aesthetic procedures can be directly applied to every patient. Smile design evaluation can be conducted in the following situations:

• Dissatisfaction with natural tooth shade
• Minor fractures or incisal wear on anterior teeth
• Interdental spaces (diastemas)
• Discrepancies in tooth form and dimensions
• Mild or advanced alignment issues
• Aesthetic disharmony in old fillings and crowns
• Irregularities in gingival margins
• Excessive gingival display when smiling
• Missing teeth in the anterior zone
• Coexistence of multiple aesthetic concerns

Some patients may express that improvements in smile appearance help them feel more comfortable in social environments.

Nevertheless, dental treatment should not be presented as a procedure offering direct psychological transformation or guaranteed self-confidence.

Who Might Not Be a Suitable Candidate for Smile Design?

Before smile design is planned, primary issues affecting oral and dental health must be brought under control. Situations where treatment may be postponed or where preliminary procedures may be required include:

• Active dental caries
• Untreated periodontal disease
• Intraoral infections
• Inadequate oral hygiene compliance
• Uncontrolled bruxism (teeth clenching or grinding)
• Severe malocclusion
• Insufficient sound tooth structure to support restorations
• Incomplete facial growth and development
• Expectations that conflict with the technical limitations of treatment
• Inability to comply with regular recall and maintenance protocols

Most of these conditions are not permanent contraindications. Caries, periodontal issues, infections, or functional disorders may simply need to be treated first.

Important distinction: Performing procedures purely for aesthetic purposes over unhealthy teeth and gums can compromise clinical outcomes and long-term tissue health.

How Is Smile Design Performed?

The smile design process begins with understanding the patient’s expectations and evaluating the existing oral anatomy. The clinical workflow varies according to the specific procedures to be applied.

Clinical Examination and Oral Health Assessment

During the initial examination, teeth, gums, existing fillings and restorations, occlusal relationships, and edentulous sites are evaluated.

Radiographic imaging, periodontal probing measurements, and pulp vitality tests may be utilized when necessary.

At this stage, not only the areas desired to be altered, but also the natural features the patient wishes to preserve should be discussed.

Photography and Digital Scanning

Clinical photographs assist in evaluating the relationship of the teeth with the face and lips.

A three-dimensional surface model of the teeth can be generated using an intraoral digital scanner.

An intraoral scanner does not capture internal bone architecture. If implant or surgical planning is required, appropriate radiographic imaging (such as CBCT) can be utilized separately.

Digital records help measure the baseline condition and compare it with the proposed design.

Facial, Lip, and Smile Analysis

The degree of tooth display during rest, speech, and smiling is evaluated. Lip dynamics, the smile line, facial midline, and gingival levels are examined.

Absolute symmetry is not always the primary goal. Minor natural variations found in facial anatomy can be preserved.

Digital Smile Planning

Proposed tooth forms, dimensions, and proportions can be evaluated on photographs and digital models.

Digital design supports communication between the patient and the clinician. The patient can visualize the proposed modifications more clearly and share feedback.

However, a design created on screen is not a one-to-one guarantee of the final clinical outcome. Soft tissue healing, material properties, fabrication protocols, and clinical application can influence the definitive appearance.

Pre-Evaluation with a Mock-up

A mock-up allows the proposed tooth form to be evaluated directly inside the mouth using provisional materials.

Through the mock-up, the patient can assess proposed tooth length, width, lip support, and relationship with phonetics.

A mock-up does not fully replicate the final shade, surface micro-texture, and optical properties of definitive porcelain. Therefore, it should be regarded as a temporary assessment of form and volume.

A mock-up is not mandatory in every case. It can support communication and design evaluation particularly in restorative plans encompassing multiple anterior teeth.

Determining Treatment Options

Following examination and design, the necessary procedures are determined. In some patients, only whitening may be applied. In others, limited bonding can be performed after aligning teeth with orthodontics. If advanced structural loss or pre-existing restorations exist, porcelain laminates or crowns may be evaluated. If multiple procedures are required, treatments are sequenced in stages to ensure compatibility.

Are Teeth Cut (Prepared) in Smile Design?

Teeth are not prepared in every smile design case.

Whitening, orthodontic treatment, and limited composite bonding can be performed without removing tooth structure or with very minimal modification.

If porcelain laminate veneers are to be applied, a certain amount of preparation in the enamel tissue may be required depending on tooth position, baseline shade, and the planned thickness of the restoration. While very limited preparation can be performed in select eligible cases, more tooth structure may need to be removed in others.

In full-coverage crowns, more comprehensive circumferential preparation is performed compared to laminate veneers. Therefore, before planning a crown on a healthy tooth solely for aesthetic purposes, more conservative options should be evaluated.

Short answer: Smile design does not inherently mean tooth cutting. The level of intervention on the tooth varies according to the chosen treatment modality.

Are Smile Design and Hollywood Smile the Same Thing?

Smile design and Hollywood Smile are not the same concept.

Smile design is a clinical planning process in which treatment options are determined according to an individual’s existing dental and facial morphology.

“Hollywood Smile” is predominantly a marketing term used to describe a visibly whiter, highly uniform, and prominent tooth appearance. It is not a standardized medical treatment classification.

The goal of every smile design is not to produce teeth of identical whiteness, length, and shape. Excessively white or standardized tooth forms that do not suit the individual can diminish a natural appearance.

At ON7 Clinic, the objective is not to duplicate a generic smile template, but to create a treatment plan compatible with the patient’s existing anatomy and expectations.

Is Smile Design Painful?

Smile design is not inherently a painful or painless procedure on its own; it is a planning approach. Discomfort perceived varies according to the specific treatments applied. Planning phases such as digital scanning and clinical photography are non-surgical and generally do not require anesthesia.

In cases requiring tooth preparation or periodontal procedures, pain control is established with local anesthesia. Transient sensitivity after whitening, post-operative healing discomfort following periodontal procedures, or brief sensitivity after crown preparation may be observed.

The healing and sensitivity trajectories of bonding, laminates, crowns, orthodontics, and periodontal therapies differ from one another. If pain increases over time, wakes the patient at night, becomes sharp during chewing, or presents with swelling, a clinical evaluation should be performed.

How Long Does Smile Design Take?

The duration of smile design varies according to the procedures to be executed. While analysis and digital planning can be completed in a short timeframe, finalizing definitive treatments may require more time.

Whitening or limited bonding procedures can be completed in fewer sessions. Porcelain laminates and crowns requiring laboratory fabrication involve impression/scan, try-in, and bonding stages.

Orthodontic treatments, implants, or periodontal surgeries may span a longer therapeutic timeline. In cases requiring tissue healing, a waiting period is necessary before definitive restorations are placed.

Primary factors influencing treatment duration include:

• Number of procedures to be performed
• Number of teeth to be treated
• Pre-existing caries and periodontal conditions
• Dental laboratory production timelines
• Need for orthodontics or implant placement
• Biological tissue healing
• Try-in appointments and design modifications

The timeline should be determined not merely by how quickly aesthetic procedures can be completed, but in accordance with oral health and clinical requirements.

What Are the Risks of Smile Design Procedures?

The risks of smile design vary according to the specific treatments included in the plan. Potential considerations include:

• Sensitivity or gingival irritation following whitening
• Chipping, wear, or staining in composite bonding restorations
• Irreversible tooth preparation in laminates and crowns
• Fracture or debonding of restorations
• Occlusal disharmonies
• Gingival irritation or recession
• Color discrepancies between natural teeth and restorations
• Natural teeth shifting in shade over time
• Requirement to wear retainers following orthodontics
• Restoration damage due to bruxism
• Failure to fully match expected shade or form
• Need for maintenance, repair, or renewal over time

Digital design and mock-ups help discuss expectations; however, they do not completely eliminate risks.

The functional lifespan of restorations is collectively influenced by material choice, remaining tooth structure, adhesive bonding protocols, occlusal forces, bruxism, oral hygiene, and regular recall check-ups.

What Should Be Considered After Smile Design?

Post-treatment maintenance varies according to the procedures performed. The same care regimen is not applied after whitening, composite bonding, porcelain laminates, or orthodontics.

Daily Oral Hygiene

Teeth should be brushed twice daily with an appropriate technique, and interdental areas should be cleaned with dental floss or interdental brushes.

Maintaining cleanliness along the gingival margin in areas with laminates and crowns is essential. Having restorations does not mean the natural tooth underneath is completely immune to caries or periodontal disease.

If deemed necessary by the dentist, an appropriate mouth rinse may be recommended for a specific duration. Mouth rinses do not replace mechanical plaque removal.

Staining Considerations by Procedure

Recommendations regarding staining depend on the treatment performed.

Following whitening, natural teeth may gradually darken over time. On composite bonding surfaces, discoloration may occur due to tea, coffee, tobacco use, and surface micro-wear.

Porcelain restorations are more resistant to staining; however, the shade of surrounding natural teeth can change over time. This can create a tonal mismatch between restorations and natural dentition.

Hard Foods and Bruxism

Porcelain and composite restorations are not indestructible. Habits such as biting ice, opening hard shells, or holding objects with teeth can damage restorations.

In patients with teeth clenching or grinding, a night guard (occlusal splint) may be recommended. Unmanaged bruxism can negatively affect the longevity of bonding, laminates, and crowns.

Post-Orthodontic Retention

Teeth corrected with orthodontic treatment tend to relapse toward their previous positions. Therefore, retainers or specified retention appliances must be worn for the recommended duration.

Regular Check-ups

The frequency of recall appointments is determined according to the treatments applied, caries risk, periodontal health, and oral care status.

During check-ups, restoration surfaces, marginal adaptation, occlusion, gingival health, and shade stability are evaluated. Minor issues can be managed with maintenance or polishing when necessary.

Smile Design Approach at ON7 Clinic

At ON7 Clinic, smile design is not approached as a standardized aesthetic procedure where the identical tooth form or uniform treatment package is applied to every patient.

In the initial assessment, the areas the patient most wishes to alter, the natural features they wish to preserve, and their treatment expectations are heard. Subsequently, oral health, gingival architecture, occlusion, and existing restorations are evaluated.

During the planning phase, the following records and methods may be utilized when necessary:

• Clinical photography
• Intraoral digital scanning
• Radiographic imaging
• Digital smile design
• Mock-up application
• Provisional restorations
• Orthodontic evaluation
• Periodontal evaluation

Digital design and mock-ups assist in evaluating proposed tooth forms and proportions collaboratively with the patient. This preview is not presented as a one-to-one guarantee of the final result.

A minimally invasive and conservative approach is prioritized. In cases where satisfactory outcomes can be achieved with whitening, orthodontics, or bonding, planning porcelain restorations directly may not be necessary. Before procedures involving irreversible tooth preparation, alternative treatments, potential risks, maintenance requirements, and the fact that restorations may need replacement over time are explained to the patient.

Key pillars of the smile design approach at ON7 Clinic:

• Treating underlying oral health problems before initiating aesthetic procedures
• Avoiding a one-size-fits-all treatment approach for every patient
• Preserving healthy tooth structure to the greatest extent possible
• Evaluating aesthetic appearance together with occlusion and function
• Involving the patient in the design and decision-making process
• Not presenting digital previews as a guaranteed outcome
• Establishing procedure-specific maintenance plans following treatment

The goal is to establish an appearance harmonized with facial, lip, tooth, and gingival dynamics. The achievable result and functional lifespan vary according to baseline oral conditions, selected treatments, restorative materials, and individual oral hygiene habits.