Thimble vs. Full Zirconia

Definitive implant supported restorations ARE NOT ALL CREATED EQUAL! Every lab opts for different designs and chooses different final materials typically based on cost. But at Wiand, we opt for ideal design and materials for long-term aesthetics and functionality for you and your patients. This saves you money in the long run! Our thimble design trumps full block zirconia for so many reasons, but the main difference is that it is always repairable and able to be modified versus full block zirconia which typically requires a complete remake. With all the variables in dentistry, restorations are likely to fracture at some point.

When it comes to dental restorations, the choice of material can significantly impact both the longevity and aesthetic quality of the outcome. Two popular options in today’s market are Thimble Zirconia and Full Zirconia crowns. Both have their distinct advantages, but understanding their differences will help dental professionals make informed decisions tailored to their patients’ needs.

What is Zirconia?

Zirconia is a type of ceramic known for its exceptional strength, durability, and biocompatibility. Due to its similarity in appearance to natural teeth and its ability to resist wear, zirconia has become one of the most popular materials in modern dental restorations. Zirconia crowns are particularly favored for patients needing robust restorations, such as those with bruxism (teeth grinding) or extensive dental damage.

Thimble Zirconia: An Overview

Thimble Zirconia refers to a thin layer or coping of zirconia, typically used as a framework or substructure underneath a porcelain overlay. This technique provides a strong foundation for the restoration while still allowing for aesthetic customization, as the outer porcelain layer can be matched to the surrounding natural teeth.

The Key Difference: Repairability and Modification

One of the main factors that sets thimble zirconia apart from full block zirconia is its repairability. Thimble zirconia crowns are designed to be repaired and modified as needed, whereas full zirconia crowns generally require a complete remake if an issue arises.

Thimble Crowns: The Flexible, Repairable Option

Dentists often favor thimble crowns for the following reasons:

Repairability: If the outer porcelain layer chips or cracks, it can be easily repaired or replaced without needing to remake the entire crown. This is a significant advantage for both the dentist and the patient, as it reduces the need for costly and time-consuming remakes.
Modification: Thimble crowns allow for adjustments and modifications, even after the crown has been seated. If a patient experiences discomfort or a bite issue, the crown can be adjusted to improve fit and function. In contrast, full zirconia crowns offer minimal flexibility for modifications once they are milled.
Customization: The dual-layer design of thimble crowns allows for more customization in terms of shading and esthetics. The outer porcelain layer can be stained and layered to match the patient’s natural teeth more precisely, delivering superior esthetics compared to the monochromatic appearance of full zirconia crowns.

Full Zirconia: Durable, But Less Forgiving

While full zirconia crowns are known for their strength and durability, their solid construction leaves little room for flexibility once they’re fabricated. Here are the key drawbacks compared to thimble zirconia:

Limited Repair Options: When a full zirconia crown chips or fractures, repairing it is extremely difficult, if not impossible. Most often, a damaged full zirconia crown requires a complete remake, which can be both costly and inconvenient for the patient.
Minimal Adjustability: Full zirconia crowns offer minimal room for post-placement adjustments. If the crown doesn’t fit perfectly or needs to be modified for comfort, it may be difficult to make the necessary changes without compromising the integrity of the restoration.
Aesthetic Limitations: While advancements in full zirconia technology have improved the material’s esthetics, it can still lack the natural translucency and shading achieved with layered porcelain in thimble crowns. For patients who prioritize the most lifelike appearance, thimble zirconia may be the preferred option.

Always have a parachute with our thimble design! Learn more here…