Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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ORIGINAL ARTICLE
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Accuracy of computer-assisted surgery in immediate implant placement: An experimental study


1 Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
2 Private Practice, Santo Domingo, Dominican Republic, Universidad Nacional de Colombia, Bogotá, Colombia
3 Division of Oral and Maxillofacial Radiology, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá, Colombia
4 Department of Orthodontics, Bauru Dental School, University of Sao Paulo, São Paulo, Brazil
5 Division of Oral Radiology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
6 Division of Orthodontics, School of Dentistry, Universidad Científica del Sur, Lima, Peru

Correspondence Address:
Luis Ernesto Arriola-Guillén,
Av. Arequipa 4861, Miraflores, Lima
Peru
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jisp.jisp_763_20

Purpose: Computer-guided surgery has been increased in recent years. Nonetheless, few data are available on the validation of this technique for immediate implant placement. The purpose of this in vitro study was to evaluate the accuracy of computer-guided surgery in immediate implant placement. Materials and Methods: Cone-beam computed tomography scans (CBCTs) and virtual models were obtained of eight fresh pigs hemi-mandibles to perform the digital planning of implants placement. Fifteen implants were simulated, and surgical guides were designed to transfer the digital planning to the surgical procedure. Postsurgical CBCTs were performed to compare the position of the planned implants versus the real implant position. Paired t-test and the intra-class correlation coefficient (ICC) were used to assess the mean differences and correlations in each outcome variable evaluated twice by one experienced researcher. Furthermore, variations were compared with the results reported in the scientific literature using a one-sample t-test P < 0.05. Results: The measurements of the outcome variables (implants position at the neck and apex level and the angular deviation) showed significant reproducibility (mean difference-0.01 mm, 0.07 mm, and 0.30°, respectively, P > 0.05). The ICC values ranged from 0.888 to 0.949. Furthermore, the mean deviation was 1.43 mm at the implant neck, 2.19 mm at the apex, and 6.81° for the angular deviation. Similarly, significant differences (P < 0.05) were found at the neck and angular deviation when comparing the results with values reported in the literature. Conclusions: Although some variations were observed, they did not have a clinically significant impact. Therefore, computer-guided surgery could be satisfactorily used in immediate implants placement.


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    -  Báez-Marrero N
    -  Rafel JL
    -  Rodríguez-Cárdenas YA
    -  Castillo AA
    -  Dias-Da Silveira HL
    -  Arriola-Guillén LE
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