Why Focusing on the Lower Anterior Teeth in Restorations is Important for Esthetics and Function

If you ignore the lower anterior teeth in a restoration, you may be sacrificing a significant amount of potential case benefits.

The process of improving dental techniques is one of constant refinement throughout our careers. We build upon techniques and begin to see our blind spots with each new case.

This blog is about specificity and detail-oriented technique. Excellent clinical dentistry balances the patient’s desire to improve their smile esthetics with effectively conveying the overall importance of planned changes to their health.

Incorporate the approach I discuss below into your restorative work and you’ll see the benefits extend widely to both final case esthetics and patient satisfaction. After all, those twin goals entwine throughout everything we do in the dental practice.

Restore Lower Anterior Teeth for Esthetics and Function

Have you ever noticed cases in various dental publications where nice restorative work has been completed on the upper anterior teeth, but the lower incisors were completely ignored? Oftentimes the lower anterior teeth (the little guys) are crowded, uneven, worn, and/or damaged.

This discordant aspect is visually jarring and detracts from the perceived beauty of the final result. The pristine nature of the upper anterior teeth throws the correspondingly less appealing look of the lower anterior teeth into greater relief.

The little guys are important for esthetics and function. They show considerably more on speech as we age, something very few patients realize. They are also critical for distribution of forces as we move into protrusive and excursions. The Pankey Institute recognizes the importance of lower anterior teeth as a vital aspect of complete dental care.

This is a periodontal case where a simple equilibration substantially improved esthetics and force distribution. Patients really appreciate an enhanced smile. They immediately feel better function and stability.

What commonly overlooked areas or techniques do you use to improve restoration esthetics and function? We’d love to hear from you in the comments!

One Easy Method That Will Increase Restoration Accuracy by Customizing An Articulator to the Actual Angle of the Eminence

When we rely too heavily on ‘assumptions’ to determine the angle of the eminence during a restoration, we risk creating a faulty end result for a significant amount of patients.

About 80-85% of patients will not present an issue. You can set the angle of the condylar path on the articulator, basing your efforts on a design assumption that most patients have an eminence with a steeper angle. The lab creates posterior disclusion on the articulator and there is equal or greater disclusion.

Problems arise when you end up with a patient who falls into one of two eminence categories.

Two Types of Patients Who Need Customization to the Angle of the Eminence

For 15-20% of the patients you treat, customization is necessary. These patients often fall into two categories:

1. Eminence is flatter than the assumption.

The restorations did not touch on the articulator, yet you’ll have to remove posterior differences chairside in these patients.

1. Eminence is steeper than the assumption.

These patients tend to experience less chewing efficiency. They complain that bits of snack food pack onto their restorations. This packing occurs on the occlusal table.

In both cases, a solution is needed. Creating posterior excursive disclusion or interferences relies on how well the angle of the eminence works with the angle of the anterior guidance. To achieve great results for patients outside the norm, there are two options.

How a Photograph Can Enable Restoration Customization

Accuracy is the ultimate goal for final restorations. Many dentists who find themselves dealing with a patient in the less common eminence percentile decide to take a protrusive bite record. My advice is to choose an alternative option that requires less effort.

The easier way also uses a semi-adjustable articulator. You still customize the articulator to match the patient’s actual angle of eminence. But instead of the protrusive bite record, send the lab an end-to-end retracted photograph.

For this image:

• The incisors should rest on the incisal edges.
• The second molars should be visible and in focus.

The lab can use this image to create posterior disclusion. They simply dial the condylar setting to match the photograph and use a sharpie to record it on the model.

What method do you prefer for customizing the articulator? We’d love to hear from you in the comments!