Attanasio Ferdinando, Antonelli Alessandro, Brancaccio Ylenia, Averta Fiorella, Figliuzzi Michele Mario, Fortunato Leonzio, Giudice Amerigo
Department of Health Sciences, School of Dentistry, Magna Græcia University of Catanzaro, 88100 Catanzaro, Italy.
Dent J (Basel). 2020 Feb 21;8(1):21. doi: 10.3390/dj8010021.
The aim of this in vitro study was to analyse the primary stability of 20 implants placed with Twist drills (TD) versus 20 implants placed with Summers osteotomes (SO) and 20 implants placed with B&B bone compactors (BC) in medullary bone (quality type III and type IV).
The implants were placed in 10 fresh pig ribs fixed on a bench vice in order to avoid micro-movements during surgical procedures and measure recording. Peak insertion torque (PIT) and Peak removal torque (PRT) were recorded with MGT-12 digital torque gauge and ISQ was recorded through OSSTELL ISQ™ device by an independent operator.
Comparing our data (Tukey test = 0.05), it was evidenced a statistically significant difference in the PIT between TD and BC groups ( = 0.01). Analysing ISQ data, there was a statistically significant difference between the TD and BC groups ( = 0.0001) and between the SO and BC groups ( = 0.014). The analysis of PRT evidenced a statistically significant difference between the TD and BC groups ( = 0.038).
This study evidenced that bone compactor preparation can positively influence primary implant stability (PS), however further in vivo studies and a larger sample are necessary to assess the usefulness in several clinical settings.
本体外研究的目的是分析在Ⅲ型和Ⅳ型髓质骨中，使用麻花钻（TD）植入20枚种植体、使用Summers骨凿（SO）植入20枚种植体以及使用B&B骨挤压器（BC）植入20枚种植体后的初期稳定性。
将种植体植入10根固定在台虎钳上的新鲜猪肋骨中，以避免手术过程中和测量记录时的微动。由一名独立操作人员使用MGT - 12数字扭矩仪记录峰值插入扭矩（PIT）和峰值取出扭矩（PRT），并通过OSSTELL ISQ™设备记录种植体稳定性商数（ISQ）。
比较我们的数据（Tukey检验，α = 0.05），TD组和BC组之间的PIT存在统计学显著差异（P = 0.01）。分析ISQ数据，TD组和BC组之间（P = 0.0001）以及SO组和BC组之间（P = 0.014）存在统计学显著差异。PRT分析表明TD组和BC组之间存在统计学显著差异（P = 0.038）。
本研究表明骨挤压器预备可对种植体初期稳定性（PS）产生积极影响，然而，需要进一步的体内研究和更大样本量来评估其在多种临床情况下的实用性。
