What is Function and Aesthetics in Dentistry?

By: Dr. Neeraj Khanna
Topic originally appeared on TheDawsonAcademy.com. Dr. Khanna granted permission for igniteDDS to share with our readers.

Let’s face it – it’s an image-conscious world we live in. Patients often walk into dental offices with a single goal: achieving that perfect smile (while treating other underlying issues.)

However, this focus on aesthetics can overshadow a crucial aspect of dental health – proper function. Dentists face a daily quandary: meeting patients’ high aesthetic expectations while ensuring long-term oral health and comfort with proper function.

This tension between beauty and function is more than just a philosophical debate. It leads to real consequences: patients returning with chipped veneers or jaw pain and dentists grappling with failed restorations and unsatisfied clients. The root of the problem? A disconnect between what patients want and what they truly need for lasting oral health.

Let’s explore some insights from a recent webinar that tackled this very issue. We’ll delve into how dentists can bridge the gap between aesthetics and function, creating smiles that are not only stunning but also built to last.

The Marriage of Function and Aesthetics in Dentistry

At the heart of this challenge lies a fundamental principle: while patients are often aesthetically driven, dentists must be functionally driven. This doesn’t mean neglecting aesthetics; it involves solving aesthetic concerns while keeping function at the forefront.

When your patients come to you, they will be esthetically driven – but you must be functionally driven as a clinician. This approach ensures that the beautiful restorations we create can withstand the test of time and daily use.

Key Concepts in Functional Occlusion

To bridge this gap between aesthetics and function, dentists must have a solid understanding of occlusion and function. Here are three crucial concepts highlighted in the webinar:

The Role of Anterior Teeth

Anterior teeth play a significant role in establishing correct occlusion and the envelope of function. Properly restoring a patient’s envelope of function is critical for achieving natural mandibular movements. When designing anterior restorations, we must consider both the facial aspect (for aesthetics) and the lingual contours (for function).

Identifying Functional Behaviors

Understanding a patient’s functional behaviors is crucial for providing predictable treatments. For instance, a patient with extreme excursive movements that can cause their lower canine teeth to collide with incisal edges of their upper teeth. This will require modification of their occlusion in the form of reshaping or redesigning the teeth. Ignoring these patterns can prematurely fail even the most aesthetically pleasing restorations.

Recognizing Signs of Instability

Dentists must spot signs of occlusal instability, such as unusual wear patterns or tooth migration. These signs serve often asymptomatic serve as valuable indicators. Educating our patients about their condition and explaining the implications of not treating occlusal disease will help develop appropriate management strategies that address aesthetics and function.

By incorporating these concepts into our treatment planning and patient education, we can begin to close the gap between patient’s aesthetic desires and their functional needs. Remember, form follows function.

Practical Application in Clinical Cases

Understanding the principles of functional occlusion is one thing, but applying them in real-world scenarios is where the rubber meets the road. Let’s explore a case study presented in the webinar that illustrates how a seemingly simple aesthetic concern can quickly become a complex functional challenge.

The Deceptive Broken Tooth

Our recent webinar discussed a case involving a patient with two broken front teeth.

At first glance, many dentists might consider this a straightforward cosmetic fix – perhaps some composite bonding or conservative veneers. However, a more complex picture emerged after closer examination of the patient’s functional behavior.

When the patient performed extreme excursive movements, their lower canine made direct contact with the incisal edge of the broken tooth. This insight revealed that a simple aesthetic restoration would likely fail quickly due to the occlusal forces at play.

Key Takeaways from the Case:

  • Look Beyond the Surface: What appears to be a simple aesthetic issue may have deeper functional roots. A comprehensive examination is crucial before proposing any treatment plan.
  • Analyze Functional Movements: Observing the patient’s full range of mandibular movements can reveal potential issues that might compromise even the most beautiful restorations.
  • Educate the Patient: Use these insights to educate patients about the importance of addressing functional issues alongside their aesthetic concerns.

Designing for Both Function and Aesthetics

To help bring these ideas into practical applications – it’s helpful to build a “functional matrix” for designing restorations. This method ensures that both aesthetic and functional considerations are addressed systematically.

1. Centric Stops on the Lingual Surface:

  • These provide stable occlusal contacts in centric relation.
  • Proper centric stops distribute occlusal forces evenly, reducing the risk of premature wear or fracture.
  • The location and size of these stops should be carefully planned to ensure they don’t interfere with aesthetics or phonetics.

2. Incisal Edge Position:

  • Crucial for smile design, affecting tooth proportions and overall facial harmony.
  • Determines anterior guidance and impacts phonetics.
  • The ideal position balances aesthetic requirements with functional needs, ensuring proper occlusal clearance during excursive movements.

3. Facial-Lingual Contours:

  • Primarily affects aesthetics, influencing how light reflects off the tooth surface.
  • Critical for function, determining the path of disclusion during protrusive and lateral movements
  • Achieving the right contours ensures smooth guidance without excessive steepness that could lead to functional issues.

4. Cingulum Design:

  • Provides a stop for the opposing teeth in maximum intercuspation.
  • Contributes to the overall tooth shape and proportion.
  • A well-designed cingulum supports proper occlusion without compromising the natural appearance of the lingual surface.

5. Phonetic Considerations:

  • The position and contour of anterior teeth significantly affect phonetics, particularly “F” and “V” sounds.
  • Ensure that aesthetic improvements don’t negatively impact the patient’s speaking ability.
  • Use phonetic tests during the design and try-in phases to fine-tune the restoration.

Integrating These Elements

While starting the design process from the facial aspect might be tempting, a more functional approach begins with the lingual surface. By first establishing proper centric stops and lingual contours, dentists can ensure a solid functional foundation before refining the aesthetic aspects.

This integrated approach allows for:

  • Even distribution of occlusal forces
  • Smooth guidance during excursive movements
  • Natural phonetics
  • Aesthetically pleasing results that harmonize with the patient’s facial features

By meticulously addressing each of these elements in the functional matrix, dentists can create restorations that meet the patient’s aesthetic expectations and provide long-term functional stability. This approach bridges the gap between beauty and function, leading to more predictable and satisfying patient and practitioner outcomes

Bridging the Gap for Lasting Smiles

The challenge of balancing aesthetics and function in dentistry is both complex and crucial – but valuable all the same. When you know that your restorations are not only beautiful but also strong and long-lasting, you can have peace of mind knowing that your patients will be happy with their smiles for years to come.

Key Takeaways:

  • Patient Education is Paramount: While patients may come in focused solely on aesthetics, it’s our responsibility to educate them about the importance of function. By helping them understand how proper occlusion contributes to the longevity of their restorations, we can align their expectations with best practices.
  • Comprehensive Examination is Non-Negotiable: Remember, what appears to be a simple aesthetic fix may have underlying functional issues. A thorough examination, including analysis of functional movements, is essential before proposing any treatment plan.
  • The Functional Matrix Approach: By systematically addressing centric stops, incisal edge position, contours, cingulum design, and phonetics, we can create restorations that excel in both form and function.

By implementing these principles, we can transform our approach to cosmetic dentistry. Instead of viewing aesthetics and function as competing priorities, we can see them as complementary aspects of comprehensive care. This integrated approach not only leads to more satisfying outcomes for our patients but also enhances our professional fulfillment as practitioners.

Remember, a truly beautiful smile is one that not only looks great but also functions flawlessly. As we continue to hone our skills in both the art and science of dentistry, we move closer to consistently achieving this ideal, one patient at a time.

Dr. Neeraj Khanna, DDS

Dr. Neeraj Khanna, DDS

Dr. Khanna grew up in Toronto, Canada where he attended the University of Toronto and completed his Bachelor of Science degree (1989). He then continued post graduate school at the University Of Detroit Mercy- School Of Dentistry and earned is D.D.S. degree (1993). Dr. Khanna then completed a General Practice Residency at the University of Rochester-Strong Memorial Hospital in Rochester, New York (1994) After being an associate dentist for several years, Dr. Khanna opened his practice (March 2000) in beautiful downtown Geneva, Illinois. Dr. Khanna has completed training at the prestigious DAWSON ACADEMY (St. Petersburg, FL). He has been faculty with the Dawson Academy since 2010, and is now a Senior Faculty member. His training at the Dawson Academy has inspired him to dedicate his practice to excellence in comprehensive restorative and aesthetic dentistry. Dr. Khanna’s philosophy involves treating every patient in the four aspects of complete dentistry. This includes achieving harmony between jaw joints, muscles, supporting tissues, and teeth. His passion for complete dentistry has opened opportunities to share his knowledge. Dr. Khanna has lectured in many countries including the United States, U.A.E, India, Philippines, Poland, Thailand, and the Republic of Armenia. In 2020, Dr. Khanna was honored in publishing his first textbook titled “Functional Aesthetics: How to Achieve Predictable Aesthetic Results Using the Principles of a Stable Occlusion.”