Skip to main content
2026 AAPD Annual Meeting Main banner
Cheng Crowns
Information & Legend
This session is not in your schedule.
This session is in your schedule. Click again to remove it.
Presentation Icons
Ticket Required
Ticket Required
Sold Out
Sold Out
Recorded Session
Recorded Session
Rate ePoster

Restorative

189 - Zirconia Crown Survival of Primary Maxillary Incisors and Canines

Friday, May 22, 2026
4:00 PM - 4:15 PM PST
Has Audio
Abstract:


Purpose: Prefabricated zirconia crowns have been increasingly used as an esthetic and durable restorative option for decayed primary teeth. However, long-term clinical and radiographic outcome data remain limited. The aim of this study was to evaluate the clinical and radiographic outcomes of prefabricated zirconia crowns placed on primary maxillary incisors and canines over a follow-up period of up to 36 months at the University of Pennsylvania School of Dental Medicine Pediatric Clinic.



Methods: Children aged 3 to 7 years who were treated with prefabricated zirconia crowns on primary maxillary incisors and canines were included. Teeth with a history of dental trauma or pulp therapy were excluded. Forty-three crowns were evaluated, with follow-up ranging from 3 to 35 months. Success was determined through clinical and radiographic assessment at routine periodic examination and prophylaxis visits. Radiographic failure criteria included the presence of periapical pathology. Clinical failure criteria included crown loss, crown fracture, abscess formation, and reported pain.



Results: Of the 43 teeth evaluated, 39 (91%) were deemed successful at follow-up. Four teeth failed and required additional treatment, including extraction or crown re-cementation.



Conclusion: Prefabricated zirconia crowns demonstrated a high clinical success rate and appear to be a reliable restorative option for decayed primary maxillary incisors and canines. When failures occurred, abscess formation was the most common complication (75%). These findings emphasize the importance of appropriate case selection and consideration of pulp therapy for teeth with extensive caries approximating the pulp. Further studies with larger sample sizes and longer follow-up periods are warranted.

Identify Supporting Agency and Grant Number: