Labbé Stéphanie, Garisto Gabriella A, Barrett Edward J, Casas Michael J
Dr. Labbé is in private pediatric dentistry practice in Ottawa, Ontario;, Email:
Dr. Garisto is a director, Dental Education, Department of Dentistry, The Hospital for Sick Children, and an assistant professor, University of Toronto.
Pediatr Dent. 2023 Mar 15;45(2):113-116.
The purpose of this study was to compare one-year clinical outcomes of primary incisor strip crowns (SCs) and zirconia crowns (ZCs) and determine the frequency of pulp therapy associated with each technique.
Children aged 18 to 48 months were randomly assigned to a ZC group or SC group. Each incisor was rated as intact (I), damaged (D), or requiring treatment (TR) six and 12 months following placement.
Seventy-six ZCs and 101 SCs were placed for 59 participants; ZCs were more likely to be rated I than SCs at six months (odds ratio [OR] equals 4.2; P=0.01) and 12 months (OR equals 4.0; P=0.02). There was no statistical difference in the frequency of pulp therapy between groups (OR equals 0.8; P=0.70). There were no deviations from treatment randomization in either group.
Zirconia crowns were more likely than strip crowns to be rated as intact at six or 12 months after treatment. The frequency of pulp therapy was not statistically different between groups.
本研究旨在比较乳前牙条冠（SCs）和氧化锆冠（ZCs）的一年临床疗效，并确定每种技术相关的牙髓治疗频率。
将18至48个月大的儿童随机分为ZC组或SC组。在修复后6个月和12个月，对每颗前牙进行完好（I）、受损（D）或需要治疗（TR）的评级。
为59名参与者放置了76颗ZC和101颗SC；在6个月时（优势比[OR]等于4.2；P=0.01）和12个月时（OR等于4.0；P=0.02），ZC被评为完好的可能性高于SC。两组之间牙髓治疗频率无统计学差异（OR等于0.8；P=0.70）。两组在治疗随机化方面均无偏差。
治疗后6个月或12个月，氧化锆冠比条冠更有可能被评为完好。两组之间牙髓治疗频率无统计学差异。
