Vemuri Sayesh, Rachamadugu Eswar Swetha, Naveena Thalabhakthula, Garlapati Roopadevi, Bolla Nagesh, Basam Ram Chowdary
Department of Conservative Dentistry and Endodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
J Conserv Dent Endod. 2024 Oct;27(10):1026-1031. doi: 10.4103/JCDE.JCDE_345_24. Epub 2024 Oct 5.
Effect of three different obturation techniques on bond strength of bioceramic sealers.
This study aimed to investigate the effect of cold lateral compaction, thermafil, and thermoplasticized obturation techniques on the push-out bond strength of AH Plus Bioceramic and EndoCeramic sealers.
The design of the study was an study.
Forty-two extracted teeth that were single-rooted and had fully developed apices were chosen, decoronated, and biomechanically prepared using rotary nickel-titanium (NiTi) instruments. Samples were divided into two groups of = 21. Group 1: AH Plus Bioceramic sealer, Group 2: EndoCeramic sealer. Then, based on the obturation technique employed, each group was divided into three subgroups ( = 7): subgroups 1a, 2a: Cold lateral compaction; Subgroups 1b, 2b: Thermafil; and Subgroups 1c, 2c: Thermoplasticized (obtura). Using universal testing machine, slices from the middle third of the sample's root were analyzed to determine the push-out bond strength values.
Compared to other groups push-out bond strength was noticeably higher for the cold lateral compaction technique with EndoCeramic sealer (Subgroup 2a), followed by the Thermafil technique with EndoCeramic sealer (Subgroup 2b).
In the present study, compared to heat-based obturation techniques, cold lateral compaction showed better push-out bond strength values for both sealers. EndoCeramic sealer resulted in greater push-out bond strength values than AH Plus Bioceramic sealer.
三种不同充填技术对生物陶瓷封闭剂粘结强度的影响。
本研究旨在探讨冷侧向加压、热塑牙胶尖和热塑充填技术对AH Plus生物陶瓷封闭剂和EndoCeramic封闭剂推出粘结强度的影响。
本研究为实验性研究。
选取42颗单根且根尖完全发育的离体牙,去除冠部,并用旋转镍钛器械进行生物力学预备。样本分为两组,每组n = 21。第1组:AH Plus生物陶瓷封闭剂;第2组:EndoCeramic封闭剂。然后,根据所采用的充填技术,每组再分为三个亚组(n = 7):亚组1a、2a:冷侧向加压;亚组1b、2b:热塑牙胶尖;亚组1c、2c:热塑充填。使用万能试验机分析样本牙根中1/3处的切片,以确定推出粘结强度值。
与其他组相比,EndoCeramic封闭剂冷侧向加压技术(亚组2a)的推出粘结强度明显更高,其次是EndoCeramic封闭剂热塑牙胶尖技术(亚组2b)。
在本研究中,与基于热的充填技术相比,冷侧向加压对两种封闭剂均显示出更好的推出粘结强度值。EndoCeramic封闭剂的推出粘结强度值高于AH Plus生物陶瓷封闭剂。