Zhao Wenbo, Teng Weiwei, Su Yucheng, Zhou Libo
Graduate student, Stomatology College of Jiamusi University, Jiamusi, PR China.
Full Professor, Experimental Center for Stomatological Engineering, Jiamusi University & Key Laboratory of Oral Biomedical Materials and Clinical Application, Jiamusi, Heilongjiang Province, PR China; and Department of Dental Implant, Peking Union Medical College Hospital, Beijing, PR China.
J Prosthet Dent. 2024 Nov 18. doi: 10.1016/j.prosdent.2024.10.013.
The static computer-aided implant system (S-CAIS), dynamic computer-aided implant system (D-CAIS), and robotic computer-aided implant system (R-CAIS) have been used to improve the accuracy of implant placement. However, the accuracy of freehand (FH),S-CAIS, D-CAIS, and R-CAIS implant placement has not been compared and verified under identical conditions.
The purpose of this in vitro study was to compare the accuracy of dental implant placement using S-CAIS, D-CAIS, R-CAIS, and FH techniques under identical conditions.
A total of 60 standardized polyurethane resin models with missing mandibular teeth were prepared and divided into 4 groups: FH, S-CAIS, D-CAIS, and R-CAIS, each consisting of 15 models. Preoperative implant planning was performed using cone beam computed tomography (CBCT), and 2 implants were placed in each model using the FH, S-CAIS, D-CAIS, and R-CAIS techniques, respectively. Postoperatively, CBCT scans were made for analysis of the entry, apical, and angle deviations. The error results among groups were compared using 1-way analysis of variance or a nonparametric test. The Dunnett test was used for post hoc comparison (α=.05).
The mean ±standard deviation values for entry deviation were 1.09 ±0.33 mm for the FH group, 0.72 ±0.33 mm for S-CAIS, 0.69 ±0.29 mm for D-CAIS, and 0.48 ±0.18 mm for R-CAIS (P<.05). The mean (quartiles) apical deviations were 1.01 (0.94 -1.22) for the FH group, and the mean ±standard deviation values were 0.87 ±0.07 mm for the S-CAIS group, 0.64 ±0.05 mm for D-CAIS, and 0.47 ±0.03 mm for R-CAIS (P<.05). The mean ±standard deviation values for angle deviation for the FH group were 2.74 ±0.84 degrees, 1.99 ±0.76 degrees for S-CAIS, 0.85 ±0.46 degrees for D-CAIS, and 0.53 ±0.20 degrees for R-CAIS (P<.05).
R-CAIS is a reliable implant placement method, demonstrating better implant accuracy compared with the S-CAIS, D-CAIS, and FH techniques.
静态计算机辅助种植系统（S-CAIS）、动态计算机辅助种植系统（D-CAIS）和机器人计算机辅助种植系统（R-CAIS）已被用于提高种植体植入的准确性。然而，徒手（FH）、S-CAIS、D-CAIS和R-CAIS种植体植入的准确性尚未在相同条件下进行比较和验证。
本体外研究的目的是在相同条件下比较使用S-CAIS、D-CAIS、R-CAIS和FH技术进行牙种植体植入的准确性。
制备60个标准化的下颌牙齿缺失的聚氨酯树脂模型，并分为4组：FH、S-CAIS、D-CAIS和R-CAIS，每组15个模型。使用锥形束计算机断层扫描（CBCT）进行术前种植体规划，并分别使用FH、S-CAIS、D-CAIS和R-CAIS技术在每个模型中植入2枚种植体。术后，进行CBCT扫描以分析入口、根尖和角度偏差。使用单向方差分析或非参数检验比较各组间的误差结果。采用Dunnett检验进行事后比较（α=0.05）。
FH组入口偏差的平均值±标准差为1.09±0.33mm，S-CAIS组为0.72±0.33mm，D-CAIS组为0.69±0.29mm，R-CAIS组为0.48±0.18mm（P<0.05）。FH组根尖偏差的平均值（四分位数）为1.01（0.94-1.22），S-CAIS组的平均值±标准差为0.87±0.07mm，D-CAIS组为0.64±0.05mm，R-CAIS组为0.47±0.03mm（P<0.05）。FH组角度偏差的平均值±标准差为2.74±0.84度，S-CAIS组为1.99±0.76度，D-CAIS组为0.85±0.46度，R-CAIS组为0.53±0.20度（P<0.05）。
R-CAIS是一种可靠的种植体植入方法，与S-CAIS、D-CAIS和FH技术相比，其种植体准确性更高。
