Genç Daimi Azı Dişlerine Uygulanan Paslanmaz Çelik Kron ve Zirkon Kronların Klinik Başarılarının Değerlendirilmesi

Abstract

GEDUK, N. Evaluation of Clinical Success of Stainless Steel Crowns and Zirconia Crowns in Young Permanent Molars. Hacettepe University Health Sciences Institute Specialty Thesis in Pediatric Dentistry, Ankara, 2022. This study was conducted to compare the gingival health and retention of young permanent molars with a stainless steel crown (SSC) or zirconia crown. Twenty children aged 6 to 17 years who required crown restoration for at least two permanent first molars were included in this study. The teeth were randomized into SSC and zirconia crown groups in a split-mouth design. The patients with crowns were evaluated after baseline and at one-, six-, twelve-, and 18-month follow-ups. In baseline and control sessions, general oral hygiene was assessed using the Greene and Vermillion simplified oral hygiene index (OHI-S). Periodontal health was assessed using the Silness&Löe plaque index and Löe&Sillness gingival index. In addition to clinical and restorative evaluations, radiographic evaluations were also performed at 6 and 12 months. The data were analyzed statistically using Kaplan-Meier Analysis, Chi-square Test, Friedman Two-Way Analysis of Variance, Mann-Whitney U Test, One-Way Analysis of Variance in Repeated Measurements, and T-test. Forty teeth were evaluated in 17 children for 18 months. The cumulative survival rates of zirconia crowns were 95.2%. The OHI-S levels were not different at the follow-ups. Teeth restored with zirconia crowns showed lower gingival index and plaque index scores than those restored with SSCs. Although SSCs are a very successful restorative material, the gingival health and plaque accumulation performance of zirconia crowns were better than those of stainless steel crowns.