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Article

A Retrospective Study on the Transferring Accuracy of a Fully Guided Digital Template in the Anterior Zone

Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this article and should be regarded as co-first authors.
Academic Editors: Bruno Chrcanovic and Gianrico Spagnuolo
Received: 29 April 2021 / Revised: 27 June 2021 / Accepted: 9 August 2021 / Published: 17 August 2021
(This article belongs to the Special Issue Novel Biomaterials and Technology for Dental Clinical Applications)
The accuracy of implant placement with a fully guided digital template can be influenced by many factors, such as arch difference, alveolar bone density, timing of implant placement and open flap. The purpose of this article was to evaluate the factors presumptively affecting the accuracy of implant placement assisted by the fully guided template in the anterior zone. In 40 patients with missing anterior teeth, a total of 52 implants were placed with tooth-borne, fully guided templates after CBCT evaluation, in West China Hospital of Stomatology, Sichuan University. After overlapping the pre-and post-operative DICOM data, measurements were taken in the dental implant planning software (Nobel Clinician®) to calculate linear and angular deviations between virtual placement plan and actual implant placement. Grouping was categorized according to three factors that possibly have an influence on accuracy: arch type (maxilla/mandible), timing of implant placement (immediate/delayed), surgical technique (open flap/flapless). The data was analyzed with independent sample t-test (p < 0.05). The results showed that the apical, coronal, depth and angular mean deviations of implant positions in anterior zone were 1.13 ± 0.39 mm, 0.86 ± 0.33 mm, 0.41 ± 0.66 mm, 3.32 ± 1.65° with the fully guided templates. The accuracy at apex level, coronal level and the angulation were similar between the maxilla and mandible, and the magnitude of all four deviations between immediate and delayed implantation, open flap and flapless technique were small. No statistically significant difference was observed (p > 0.05). Whereas there was significant difference in depth deviation between maxilla and mandible (p < 0.05). Conclusively, the implant site, alveolar bone density, timing of implant placement and surgical techniques merely compromise the implant placement accuracy under the assistance of a fully guided template. View Full-Text
Keywords: anterior zone; fully guided template; digital implantology; accuracy deviation anterior zone; fully guided template; digital implantology; accuracy deviation
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MDPI and ACS Style

Huang, L.; Zhang, X.; Mo, A. A Retrospective Study on the Transferring Accuracy of a Fully Guided Digital Template in the Anterior Zone. Materials 2021, 14, 4631. https://0-doi-org.brum.beds.ac.uk/10.3390/ma14164631

AMA Style

Huang L, Zhang X, Mo A. A Retrospective Study on the Transferring Accuracy of a Fully Guided Digital Template in the Anterior Zone. Materials. 2021; 14(16):4631. https://0-doi-org.brum.beds.ac.uk/10.3390/ma14164631

Chicago/Turabian Style

Huang, Lirong, Xiaoqing Zhang, and Anchun Mo. 2021. "A Retrospective Study on the Transferring Accuracy of a Fully Guided Digital Template in the Anterior Zone" Materials 14, no. 16: 4631. https://0-doi-org.brum.beds.ac.uk/10.3390/ma14164631

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