Zirconia-based Primary Anterior Crowns With Retention Grooves Versus Without Retention Grooves

Effectiveness of Zirconia-based Crowns With Retention Grooves (Sprig EZ) Versus Without Retention Grooves (NuSmile ZR) for Restoration of Primary Anterior Teeth: A Parallel-arm Randomized Controlled Trial

The purpose of this research study is to test the effectiveness of two different crowns/caps on teeth for restoration of primary anterior teeth. The two different materials of crowns are esthetic crowns with retentive grooves and without retentive crowns. These crowns are placed on the teeth to restore function, esthetics and prevent further caries and infection.

There are many treatment options available for restoring primary anterior teeth. A clinician's decision to opt for any specific treatment option is based on multiple factors such as the clinician's liking of a specific material or method, esthetic demands by parents, the child's behavior, and moisture and hemorrhage control. Out of many treatment options, preformed zirconia crowns for primary teeth have been available for over a decade. There is insufficient research that compares the success of anterior pediatric zirconia crowns with and without retentive grooves.

Inclusion Criteria:

• Healthy 2 to 6-year-old children.
• Those having opposed anterior teeth.
• No history of systemic illness or dental developmental anomalies
• Minimal of two surfaces of caries in the upper anterior teeth.
• Patient with Early Childhood Caries.
• Patients treated under General Anesthesia.
• English, Spanish, and Arabic speaking patients

Exclusion Criteria:

• Teeth nearing exfoliation.
• The presence of a single surface caries, not involving the proximal surfaces.
• Teeth that have been subjected to trauma.
• Bruxism.
• Special health needs.
• Presence of teeth wear on the opposing teeth, or absence of opposing teeth.