Biradar Rishika, Siaddaiah Shakuntala B, Bhat Prasanna K
Department of Pediatric and Preventive Dentistry, RajaRajeswari Dental College & Hospital, Bengaluru, Karnataka, India.
Int J Clin Pediatr Dent. 2024 May;17(5):524-527. doi: 10.5005/jp-journals-10005-2906.
Stainless steel crowns (SSCs) are the most durable and effective restorations for primary teeth. Titanium-coated SSCs are newer on the market, and this study was conducted to assess the amount of nickel (Ni) and titanium ions released from titanium-coated SSCs, with and without trim, in artificial saliva.
A total of 60 titanium-coated SSCs were divided into two groups-group I ( = 30, without trim) and group II ( = 30, with trim) and were immersed in 5 mL artificial saliva. The amount of Ni and titanium released in each group was measured by inductively coupled plasma-mass spectrometry on days 1, 7, and 21.
The amount of Ni ion released in group I on day 1 was 0.0096 ppm and reduced on day 7 (0.0091 ppm) and day 21 (0.0088 ppm). Whereas the amount of Ni ion released in group II was the same for all 3 days (0.0096 ppm). The amount of titanium ion released in both groups was the same on all 3 days (0.00108 ppm).
There was no significant difference seen in the mean Ni and titanium ion release between the two groups on all 3 days. The cumulative release of metals from titanium-coated SSCs in each of the groups was significantly lower than the level required to produce any harmful effects. Any of the groups of commercially available SSCs can be used in pediatric dentistry.
Biradar R, Siaddaiah SB, Bhat PK. Evaluation of Nickel and Titanium Releasing from Titanium-coated Stainless Steel Crowns Regarding Trimming: An Study. Int J Clin Pediatr Dent 2024;17(5):524-527.
不锈钢冠（SSCs）是乳牙最耐用、有效的修复体。钛涂层不锈钢冠是市场上较新的产品，本研究旨在评估有无修整的钛涂层不锈钢冠在人工唾液中释放镍（Ni）和钛离子的量。
总共60个钛涂层不锈钢冠被分为两组——第一组（n = 30，未修整）和第二组（n = 30，有修整），并浸泡在5毫升人工唾液中。在第1天、第7天和第21天，通过电感耦合等离子体质谱法测量每组中释放的镍和钛的量。
第一组在第1天释放的镍离子量为0.0096 ppm，在第7天（0.0091 ppm）和第21天（0.0088 ppm）减少。而第二组在所有3天中释放的镍离子量相同（0.0096 ppm）。两组在所有3天中释放的钛离子量相同（0.00108 ppm）。
在所有3天中，两组之间镍和钛离子的平均释放量没有显著差异。每组中钛涂层不锈钢冠的金属累积释放量显著低于产生任何有害影响所需的水平。任何一组市售的不锈钢冠都可用于儿童牙科。
Biradar R, Siaddaiah SB, Bhat PK. 关于修整的钛涂层不锈钢冠释放镍和钛的评估：一项研究。《国际临床儿科牙科学杂志》2024；17(5):524 - 527。
