Kelić Marija, Kilić Domagoj, Kelić Katarina, Šutej Ivana, Par Matej, Peroš Kristina, Tarle Zrinka
School of Dental Medicine, University of Zagreb, Gundulićeva ul. 5, 10000 Zagreb, Croatia.
Dental Clinic Zagreb, Perkovčeva ul. 3, 10000 Zagreb, Croatia.
J Funct Biomater. 2023 Feb 13;14(2):102. doi: 10.3390/jfb14020102.
The study aimed to investigate the rechargeability of ion-releasing dental material specimens immersed in distilled water for 25 months, which depleted their ion-releasing ability. Four restorative dental materials (alkasite composite, giomer, glass-ionomer, and composite material) presented with 24 specimens were studied after topical treatment with a concentrated fluoride gel. The effect of resin coating on the ion uptake and release was investigated on additional 42 specimens of restorative dental materials with coatings. The composite materials were coated with two adhesive systems, whereas the glass-ionomer was coated with the special coating resin. After topical fluoride exposure, ion release and specimen mass were measured at 1, 2, 3, 4, 5, 6, 7, and 14-day intervals using an ion-selective electrode and an analytical balance, respectively. The cumulative fluoride levels for the uncoated specimens of alkasite composite were significantly higher than those of giomer and glass-ionomer cement, with no statistically significant difference between the latter two materials. The conventional composite had the lowest cumulative concentration of fluoride ions ( < 0.05). The adhesive systems affected the fluoride recharge and reduced the ion concentrations absorbed by the specimens. Specimens coated with universal adhesive showed significantly higher ion release compared to universal fluoride-releasing adhesive or special coating resin for glass-ionomers ( < 0.05). No statistically significant change in specimen mass was observed during the 14-day period. Surface coating with adhesive systems as well as special coating resin for glass-ionomers affects the fluoride recharge process.
该研究旨在调查浸泡在蒸馏水中25个月后离子释放能力已耗尽的牙科离子释放材料标本的再充电能力。在用浓缩氟凝胶进行局部处理后，对呈现24个标本的四种牙科修复材料（碱式复合树脂、聚酸改性复合树脂、玻璃离子体和复合材料）进行了研究。在另外42个带有涂层的牙科修复材料标本上研究了树脂涂层对离子吸收和释放的影响。复合材料用两种粘结系统进行涂层，而玻璃离子体用特殊涂层树脂进行涂层。在局部氟暴露后，分别使用离子选择电极和分析天平，每隔1、2、3、4、5、6、7和14天测量离子释放和标本质量。碱式复合树脂未涂层标本的累积氟含量显著高于聚酸改性复合树脂和玻璃离子水门汀，后两种材料之间无统计学显著差异。传统复合材料的氟离子累积浓度最低（<0.05）。粘结系统影响氟的再充电并降低标本吸收的离子浓度。与通用氟释放粘结剂或玻璃离子体的特殊涂层树脂相比，用通用粘结剂涂层的标本显示出显著更高的离子释放（<0.05）。在14天期间未观察到标本质量有统计学显著变化。用粘结系统以及玻璃离子体的特殊涂层树脂进行表面涂层会影响氟的再充电过程。
