Taran Pınar Kınay, Kaya Mustafa Sarp
Assistant professor, Department of Pediatric Dentistry, School of Dentistry, Bezmialem Vakıf University, Istanbul, Turkey;, Email:
Assistant professor, Department of Pediatric Dentistry, School of Dentistry, Bezmialem Vakıf University, Istanbul, Turkey.
Pediatr Dent. 2018 Sep 15;40(5):334-339.
The purpose of this study was to compare the periodontal health and clinical success of restoring primary molars with a prefabricated stainless steel crown (SSC) or zirconia crown (ZC). Six- to nine-year-olds with at least two decayed primary molars were included. Teeth were restored with SSCs and ZCs. Intact contralateral primary molars were evaluated as controls. A simplified oral hygiene index (OHI-S), plaque index (PI), gingival index (GI), and clinical success criteria for the crowns were evaluated during follow-up. Friedman and Wilcoxon tests were used for statistical analysis. Fifty-two teeth were evaluated in 13 children for 12 months. The OHI-S levels were not different at the follow-ups. Teeth restored with ZCs showed lower GI and PI scores than those restored with SSCs, even among controls. All SSCs were retained after 12 months, while two of the ZCs decemented. Minor staining in one ZC and a fracture on the surface of another ZC were observed. The gingival health and plaque accumulation performance of zirconia crowns were better than those of stainless steel crowns and controls. SSCs are highly retentive and viable restorative option, although they were associated with a decline in gingival health.
本研究的目的是比较用预制不锈钢冠（SSC）或氧化锆冠（ZC）修复乳磨牙的牙周健康状况和临床成功率。纳入了至少有两颗乳磨牙龋坏的6至9岁儿童。牙齿分别用SSC和ZC进行修复。将完整的对侧乳磨牙作为对照进行评估。在随访期间评估简化口腔卫生指数（OHI-S）、菌斑指数（PI）、牙龈指数（GI）以及冠的临床成功标准。采用Friedman检验和Wilcoxon检验进行统计分析。对13名儿童的52颗牙齿进行了为期12个月的评估。随访期间OHI-S水平无差异。即使在对照组中，用ZC修复的牙齿的GI和PI评分也低于用SSC修复的牙齿。12个月后所有SSC均保留，而两颗ZC脱落。观察到一颗ZC有轻微染色，另一颗ZC表面有一处骨折。氧化锆冠的牙龈健康状况和菌斑积聚情况优于不锈钢冠和对照。SSC是一种固位性高且可行的修复选择，尽管它们与牙龈健康状况下降有关。
