Kumar Vikrant, Showkat Insha, Manuja Naveen, Chaudhary Seema, Sinha Ashish A, Telgi Chaitra R
Department of Pedodontics & Preventive Dentistry, Kothiwal Dental College & Research Centre, Moradabad, Uttar Pradesh, India.
Int J Clin Pediatr Dent. 2023 Nov;16(Suppl 3):272-277. doi: 10.5005/jp-journals-10005-2687.
Establishing a strong bond between the pulp capping agent and the restorative material is crucial to the success of the procedure. Without this bond, there is a risk of bacterial infiltration into the pulp, leading to treatment failure. In the past, calcium hydroxide was commonly used for such treatments, but it faced challenges, including poor adhesion to dentin, dissolution over time, and the development of multiple tunnel defects. Mineral trioxide aggregate (MTA), introduced to dentistry in 1993, offered an alternative but came with drawbacks like challenging handling and extended setting times. However, in recent times, several new calcium silicate-based materials have emerged to address MTA's limitations. Two notable examples are Biodentine and MTA Plus. Biodentine, for instance, exhibits excellent sealing ability, while MTA Plus distinguishes itself with a finer particle size compared to traditional MTA. These innovative materials offer promising solutions to enhance the efficacy of pulp capping procedures.
Therefore, in this research, we conducted a comparative analysis of the shear bond strength (SBS) between composite resin and three materials-MTA, MTA Plus, and Biodentine. We examined the effects of applying two distinct adhesive systems in order to evaluate their influence on the bond strength.
A total of 60 acrylic blocks were evenly distributed into three groups, each containing 20 blocks-group I received Biodentine, group II was assigned MTA, and group III received MTA Plus. The respective test materials were compacted into the holes within the blocks. Following this, the samples were incubated for a period of 72 hours. Subsequently, the samples were divided into two subgroups, each consisting of 10 blocks-the self-etch and the total-etch subgroup. The SBS values were then carefully measured for analysis.
The SBS of the Biodentine group demonstrated a significantly higher value when compared to the other groups. It's worth noting that when the self-etch adhesive system was employed, the SBS of all the groups experienced a significant reduction.
Biodentine cement proves to be an effective choice for pulp capping procedures, regardless of the specific adhesive system employed. Notably, the total-etch adhesive system consistently yields higher bond strength when compared to the self-etch adhesive system.
Kumar V, Showkat I, Manuja N, Comparative Evaluation of Shear Bond Strength of Tricalcium Silicate-based Materials to Composite Resin with Two Different Adhesive Systems: An Study. Int J Clin Pediatr Dent 2023;16(S-3):S272-S277.
使盖髓剂与修复材料之间建立牢固的结合对于该治疗程序的成功至关重要。没有这种结合，就有细菌侵入牙髓的风险，从而导致治疗失败。过去，氢氧化钙常用于此类治疗，但它面临诸多挑战，包括对牙本质的附着力差、随时间溶解以及出现多个隧道状缺损。1993年引入牙科领域的矿物三氧化物凝聚体（MTA）提供了一种替代方案，但也存在诸如操作难度大、凝固时间长等缺点。然而，近年来，出现了几种新型的硅酸钙基材料来解决MTA的局限性。两个显著的例子是百康特（Biodentine）和MTA Plus。例如，百康特表现出优异的封闭能力，而MTA Plus与传统MTA相比，其颗粒尺寸更细。这些创新材料为提高盖髓治疗程序的疗效提供了有前景的解决方案。
因此，在本研究中，我们对复合树脂与三种材料——MTA、MTA Plus和百康特之间的剪切粘结强度（SBS）进行了对比分析。我们研究了应用两种不同粘结系统的效果，以评估它们对粘结强度的影响。
总共60个丙烯酸树脂块被均匀分为三组，每组20个块——第一组使用百康特，第二组使用MTA，第三组使用MTA Plus。将各自的测试材料压实到块内的孔中。在此之后，将样本孵育72小时。随后，将样本分为两个亚组，每个亚组由10个块组成——自酸蚀和全酸蚀亚组。然后仔细测量SBS值以进行分析。
与其他组相比，百康特组的SBS值显著更高。值得注意的是，当采用自酸蚀粘结系统时，所有组的SBS均显著降低。
无论采用何种具体的粘结系统，百康特水门汀被证明是盖髓治疗程序的有效选择。值得注意的是，与自酸蚀粘结系统相比，全酸蚀粘结系统始终能产生更高的粘结强度。
Kumar V, Showkat I, Manuja N, 基于硅酸三钙的材料与复合树脂在两种不同粘结系统下的剪切粘结强度的比较评价：一项研究。《国际临床儿科牙科学杂志》2023；16（S - 3）：S272 - S277。
