Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Clin Implant Dent Relat Res. 2024 Oct;26(5):889-898. doi: 10.1111/cid.13350. Epub 2024 May 29.
Surgical guides are commonly used to assist with dental implant placement. This study investigated the effects of five sterilization and disinfection methods on the accuracy of implant guides.
Thirty surgical guides (five in each group) were designed and printed (with digital light processing technology) using different sterilization or disinfection methods categorized into six groups: hydrogen peroxide sterilization (group one); glutaraldehyde sterilization (group two); autoclaving (group three); plasma sterilization (group four); iodophor disinfection (group five); and blank group (group six). Verification was determined using three methods: distance and angle between the cross-shaped marks, deformation after superimposing the guides, and displacement and axial changes in the virtual implant.
After disinfection and sterilization, the guides in the autoclaving and iodophor groups showed a more pronounced color change and the guide in the autoclaving group had visible cracks. More significant changes were observed in the HO, glutaraldehyde, autoclaving, and iodophor groups regarding deformation after superimposing the guides and the distance and angle between the cross-shaped marks. The average labial deformation values (mm) of the first through fifth groups of guides were 0.283, 0.172, 0.289, 0.153, and 0.188, respectively. All groups were statistically different from the blank group for displacement and axial changes of the virtual implant (p < 0.05).
The sizes of almost all surgical guides changed after sterilization and disinfection treatments, with between-group differences. Plasma sterilization was more suitable for surgical guide sterilization because of the smaller deformations after treatment.
外科手术导板常用于辅助牙种植体植入。本研究调查了五种消毒方法对种植导板准确性的影响。
使用不同的消毒方法设计和打印了 30 个外科手术导板（每组 5 个），并分为六组：过氧化氢消毒（第 1 组）；戊二醛消毒（第 2 组）；高压灭菌（第 3 组）；等离子体消毒（第 4 组）；碘伏消毒（第 5 组）；空白组（第 6 组）。验证使用三种方法：十字标记的距离和角度、导板叠加后的变形、虚拟植入物的位移和轴向变化。
消毒和灭菌后，高压灭菌和碘伏组的导板颜色变化更为明显，高压灭菌组的导板出现可见裂纹。在叠加导板后变形和十字标记的距离和角度方面，HO、戊二醛、高压灭菌和碘伏组观察到更显著的变化。前 5 组导板的平均唇侧变形值（mm）分别为 0.283、0.172、0.289、0.153 和 0.188。与空白组相比，所有组的虚拟植入物的位移和轴向变化均有统计学差异（p<0.05）。
消毒和灭菌处理后，几乎所有手术导板的尺寸都发生了变化，组间存在差异。等离子体消毒更适合外科手术导板的消毒，因为处理后的变形较小。
