Objectives This study aimed to assess the accuracy of implant placement performed using robotic computer-assisted implant surgery (r-CAIS) by comparing postoperative measurements obtained via intraoral scanning (IOS) with those derived from cone-beam computed tomography (CBCT).Methods The study employed a cross-sectional design. All patients received a preoperative CBCT and IOS for surgical planning and registration. All the surgeries were performed using r-CAIS. Postoperative CBCT and IOS datasets were acquired for each patient and superimposed on the preoperative datasets to assess deviations between planned and actual implant positions. Paired t-tests were used to analyze differences between the two assessment modalities, with statistical significance defined as P 0.05, respectively). ICCs for global coronal, global apical, and angular deviations were 0.911, 0.886, and 0.856, respectively. Bland-Altman analyses further confirmed excellent agreement between the two methods.Conclusions Both IOS and CBCT methods demonstrated comparable accuracy and good agreement in r-CAIS.Clinical Significance Postoperative IOS method may serve as a reliable and radiation-free alternative to CBCT for assessing implant placement accuracy in r-CAIS in patients with a single missing tooth or two consecutive missing teeth. In future, multicenter randomized controlled trials with larger sample sizes are warranted to further validate these findings.
Zhu et al. (Fri,) studied this question.