Park Won-Jong, Kim Ki-Seong, Cho Seok-Hwan, Lee Su Young
Department of Oral and Maxillofacial Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
NamSang Dental Clinic, 118 Shinpung-ro, Yeongdeungpo-gu, Seoul 07432, Republic of Korea.
Bioengineering (Basel). 2024 Nov 21;11(12):1177. doi: 10.3390/bioengineering11121177.
Accurate implant placement is essential for achieving successful outcomes. To aid in this, digitally designed surgical guides have been introduced. Both closed-sleeve and open-sleeve designs are commonly utilized. However, the closed-sleeve design has limitations with restricted interocclusal distance, interference with irrigation, and limited visibility, while the open-sleeve design is known to be less accurate. To address these limitations, a new slope-sleeve design was introduced. This design reduces the interocclusal distance requirement compared to the closed-sleeve design and provides improved accuracy. A constraint model with a 31 mm interocclusal distance was created, and three types of surgical guides (closed, open, and slope), printed using either a PolyJet or Digital Light Processing (DLP) 3D printer, were tested on resin bone blocks. Horizontal and angular deviations were measured for the accuracy of each guide after drilling, with data analyzed using one-way ANOVA and independent -tests. The slope-sleeve design showed significantly lower horizontal and angular deviations in wide-sized guides. Additionally, PolyJet-printed guides showed higher accuracy compared to DLP-printed guides. The slope-sleeve guide offers enhanced stability and precision in restricted interarch spaces. When coupled with high-precision 3D printing technologies like PolyJet, the slope-sleeve design provides a reliable solution for improving implant placement accuracy in challenging clinical scenarios.
精确的种植体植入对于取得成功的治疗效果至关重要。为了辅助实现这一点，已经引入了数字化设计的手术导板。封闭套筒式和开放套筒式设计都被广泛使用。然而，封闭套筒式设计存在局限性，如咬合间距离受限、影响冲洗以及视野受限，而开放套筒式设计的准确性较低。为了解决这些局限性，一种新的斜套筒式设计被引入。与封闭套筒式设计相比，这种设计减少了对咬合间距离的要求，并提高了准确性。创建了一个咬合间距离为31毫米的约束模型，并在树脂骨块上测试了使用PolyJet或数字光处理（DLP）3D打印机打印的三种类型的手术导板（封闭型、开放型和斜型）。钻孔后测量每个导板的水平和角度偏差以评估其准确性，数据使用单因素方差分析和独立样本t检验进行分析。在宽尺寸导板中，斜套筒式设计显示出显著更低的水平和角度偏差。此外，与DLP打印的导板相比，PolyJet打印的导板显示出更高的准确性。斜套筒式导板在有限的牙弓间隙中提供了更高的稳定性和精度。当与PolyJet等高精度3D打印技术结合使用时，斜套筒式设计为在具有挑战性的临床场景中提高种植体植入准确性提供了可靠的解决方案。
