Endocrowns: A Minimalistic Approach- a Case Series

INTRODUCTION

Endodontically treated teeth are commonly restored with conventional full-coverage crowns. However, this approach often requires significant tooth reduction, which can compromise the remaining tooth structure and increase the risk of root fractures. Endocrowns offer a more conservative alternative that preserves more tooth structure while providing adequate strength and durability. In this article, we will discuss the concept of endocrowns, their indications, preparation, and advantages over conventional crowns along with series of cases.

CASE REPORT

Case 1: Endocrown i.r.t 26

Case 2 : Endocrown i.r.t 37

DISCUSSION

Endocrowns are a type of restoration that combines the functions of a crown and a core buildup into a single unit. They are designed to provide a more conservative approach to restoring endodontically treated teeth by preserving more of the remaining tooth structure. Endocrowns are typically indicated for teeth with minimal remaining tooth structure, where a conventional crown would require extensive tooth reduction.

Indications for Endocrowns

Endocrowns are indicated for a variety of situations, including:

1. Teeth with minimal remaining tooth structure
2. Teeth with large pulp chambers or thin dentin walls
3. Teeth with short clinical crowns
4. Teeth with unfavorable crown-to-root ratios
5. Teeth with parafunctional habits
6. Teeth with vertical root fractures

Preparation of Endocrowns

The preparation of endocrowns involves removing the existing restoration and any remaining caries or decay. The pulp chamber is then cleaned and shaped to receive the endocrown. The walls of the pulp chamber are reduced to a thickness of 1.5 to 2 mm, leaving the pulp floor intact. The preparation is then recorded in an impression to fabricate a custom endocrown.

Advantages of Endocrowns

Endocrowns offer several advantages over conventional crowns, including Preservation of tooth structure, Increased retention due to the bonding of the endocrown to the tooth, Reduced risk of root fractures, Reduced chair time compared to conventional crowns

Disadvantages of Endocrowns

While endocrowns have many advantages, they do have some disadvantages, including:

1. Limited availability of long-term clinical data
2. Limited applicability to molars due to their complex anatomy
3. Increased difficulty in preparation and placement compared to conventional crowns

Clinical Considerations

Endocrowns require a high level of precision during preparation and placement to ensure a successful outcome. Adequate isolation and moisture control are essential during the bonding process to achieve a durable bond. Proper occlusal adjustment is also critical to prevent premature wear and fractures.

CONCLUSION

Endocrowns offer a conservative and effective approach to restoring endodontically treated teeth with minimal remaining tooth structure. While they have some limitations, they offer many advantages over conventional crowns, including increased retention, improved esthetics, and reduced risk of root fractures. As with any restoration, careful case selection, proper preparation, and placement techniques are essential for long-term success.

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