Khuva Hetal, Kurup Deepak, Mahreen Shazia, Mukherjee Trina, Tikadar Sourav
Department of Conservative Dentistry and Endodontics, Hazaribag College of Dental Sciences and Hospital, Jharkhand, India.
Hazaribag College of Dental Sciences and Hospital, Jharkhand, India.
J Pharm Bioallied Sci. 2024 Dec;16(Suppl 4):S3818-S3820. doi: 10.4103/jpbs.jpbs_1174_24. Epub 2024 Nov 27.
For dental restorations to be successful in clinical practice, they must possess excellent mechanical properties, such as high compressive strength and microleakage resistance.
A total of 80 Class V cavities were prepared from extracted human teeth, divided into four groups of 20 (Groups A, B, C, and D). One of the following restorative materials Neo-Spectra ST, Activa Bioactive Material, SDR Bulkfill Flowable Composite, or Zirconomer was used to restore each group. Standardized testing procedures were used to evaluate compressive strength, and dye penetration techniques were used to measure microleakage. ANOVA and Tukey's test, were two of the statistical procedures used to compare the performance of the various materials.
Neo Spectra ST had the lowest average microleakage score of 0.5 mm, which was significantly lower compared to Activa Bioactive Material at 1.2 mm, SDR Bulkfill Flowable Composite at 0.8 mm, and Zirconomer at 1.5 mm. In terms of compressive strength, Neo Spectra ST showed the highest average value at 120 MPa, with SDR Bulkfill Flowable Composite following at 100 MPa, Activa Bioactive Material at 80 MPa, and Zirconomer at 60 MPa. Statistical analysis showed significant variations in both microleakage and compressive strength between the materials ( < 0.05), highlighting Neo Spectra ST's excellent performance.
Amongst all materials, Neo Spectra ST demonstrated the greatest compressive strength and microleakage resistance compared to Zirconomer, SDR Bulkfill Flowable Composite, and Activa Bioactive Material.
为使牙科修复体在临床实践中取得成功，它们必须具备优异的机械性能，如高抗压强度和抗微渗漏性能。
从拔除的人类牙齿上制备了总共80个V类洞，分为四组，每组20个（A组、B组、C组和D组）。使用以下修复材料之一Neo-Spectra ST、Activa生物活性材料、SDR大块充填可流动复合树脂或锆瓷聚合物来修复每组。采用标准化测试程序评估抗压强度，并使用染料渗透技术测量微渗漏。方差分析和Tukey检验是用于比较各种材料性能的两种统计程序。
Neo Spectra ST的平均微渗漏评分为0.5毫米，是最低的，与Activa生物活性材料的1.2毫米、SDR大块充填可流动复合树脂的0.8毫米和锆瓷聚合物的1.5毫米相比，显著更低。在抗压强度方面，Neo Spectra ST的平均值最高，为120兆帕，其次是SDR大块充填可流动复合树脂，为100兆帕，Activa生物活性材料为80兆帕，锆瓷聚合物为60兆帕。统计分析表明，材料之间的微渗漏和抗压强度均存在显著差异（<0.05），突出了Neo Spectra ST的优异性能。
在所有材料中，与锆瓷聚合物、SDR大块充填可流动复合树脂和Activa生物活性材料相比，Neo Spectra ST表现出最大的抗压强度和抗微渗漏性能。
