A preclinical study comparing single- and double-root 3D-printed Ti-6Al-4V implants.

Autor: Chung I; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.; Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea., Lee J; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea. houy1980@snu.ac.kr.; One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Korea. houy1980@snu.ac.kr., Li L; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea., Seol YJ; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.; Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea., Lee YM; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.; Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea., Koo KT; Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea. periokoo@snu.ac.kr.; Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea. periokoo@snu.ac.kr.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Jan 17; Vol. 13 (1), pp. 862. Date of Electronic Publication: 2023 Jan 17.
DOI: 10.1038/s41598-023-27712-2
Abstrakt: Recently, double-root implants have been investigated using 3D-printed technology. Here, we investigated damping capacity, microcomputed tomographic (micro-CT) and histological analyses of double-root 3D-printed implants compared with single-root 3D printed implants. Single- and double-root 3D-printed implants were fabricated and placed at both sides of mandibular third and fourth premolars in four beagle dogs. The damping capacity was measured, and periapical X-rays were taken every 2 weeks for 12 weeks. The bone volume/tissue volume (BV/TV) and bone mineral density (BMD) around the implants were measured with micro-CT. Bone-to-implant contact (BIC) and bone area fraction occupancy (BAFO) were measured in histological samples. The implant stability values between the groups were not significantly different, except at 4 and 12 weeks. The marginal bone changes were similar at the mesial and distal areas between the groups. The BV/TV and BMD values of the double-root 3D-printed implants showed no statistical difference through micro-CT analysis, but the double-root 3D-printed implants showed lower BIC and BAFO values through histomorphometric analysis compared to the single-root 3D-printed implants. Compared to single-root implants, 3D-printed double-root implants demonstrated comparable stability and bone remodeling around the fixtures, but the statistically significant bone loss in the furcation area remains problematic.
(© 2023. The Author(s).)
Databáze: MEDLINE
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