Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments
Abstract Background Self-glazed zirconia (SGZ), produced using a novel additive 3D gel deposition technology, has recently been employed to fabricate zirconia abutments. This in vitro study aimed to evaluate the adaptation of one-piece and two-piece all-ceramic SGZ implant abutments in comparison to...
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BMC
2025-07-01
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| Series: | BMC Oral Health |
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| Online Access: | https://doi.org/10.1186/s12903-025-06572-4 |
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| author | Rong Li Yushu Liu Jinxing Sun Rui Zhang |
| author_facet | Rong Li Yushu Liu Jinxing Sun Rui Zhang |
| author_sort | Rong Li |
| collection | DOAJ |
| description | Abstract Background Self-glazed zirconia (SGZ), produced using a novel additive 3D gel deposition technology, has recently been employed to fabricate zirconia abutments. This in vitro study aimed to evaluate the adaptation of one-piece and two-piece all-ceramic SGZ implant abutments in comparison to conventional milled zirconia abutments. Methods One-piece zirconia abutments and two-piece Ti-base zirconia abutments, sharing an identical 3D design, were fabricated using self-glazed zirconia via 3D gel deposition and conventional zirconia via milling, forming four groups: SGZ-A, SGZ-Ti, Lava-A, and Lava-Ti. Marginal gaps between the zirconia abutments and Ti-base were evaluated using micro-CT data, while gaps between the abutments and implant analogs were assessed on specimen cross-sections by using a stereomicroscope. Statistical analyses were conducted using the non-parametric Mann-Whitney U and Kruskal-Wallis tests with α set at 0.05. Results For the two-piece zirconia abutments, the SGZ-Ti group(external gaps:31 ± 20 μm, internal gaps:4 ± 7 μm) exhibited significantly smaller marginal gaps between the zirconia abutment and the Ti-base compared to the Lava-Ti group(external gaps:79 ± 48 μm, internal gaps:51 ± 44 μm) (P<0.001). For the one-piece zirconia abutments, the SGZ-A group(18.5 ± 5.5 μm) demonstrated a significantly smaller gap between the abutment and the implant analog compared to the Lava-A group(26.5 ± 10.0 μm) (P = 0.044). No significant difference was observed among SGZ-A, SGZ-Ti and Lava-Ti groups (P>0.05). Conclusion SGZ abutments demonstrate superior adaptation compared to conventional milled zirconia abutments at both the Ti base-abutment interface and the implant-abutment interface. The adaptation of one-piece SGZ abutments is comparable to that of prefabricated Ti-base abutments. |
| format | Article |
| id | doaj-art-05a67db9e8a54d7baa7bb1d0c5a8cff5 |
| institution | Kabale University |
| issn | 1472-6831 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | BMC |
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| series | BMC Oral Health |
| spelling | doaj-art-05a67db9e8a54d7baa7bb1d0c5a8cff52025-08-20T03:46:23ZengBMCBMC Oral Health1472-68312025-07-012511810.1186/s12903-025-06572-4Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutmentsRong Li0Yushu Liu1Jinxing Sun2Rui Zhang3Department of Prosthodontics, Stomatology Center, Peking University Shenzhen HospitalSecond Dental Clinical Division, Peking University School and Hospital of StomatologySchool of Advanced Manufacturing, Sun Yat-sen UniversityDepartment of Prosthodontics, Stomatology Center, Peking University Shenzhen HospitalAbstract Background Self-glazed zirconia (SGZ), produced using a novel additive 3D gel deposition technology, has recently been employed to fabricate zirconia abutments. This in vitro study aimed to evaluate the adaptation of one-piece and two-piece all-ceramic SGZ implant abutments in comparison to conventional milled zirconia abutments. Methods One-piece zirconia abutments and two-piece Ti-base zirconia abutments, sharing an identical 3D design, were fabricated using self-glazed zirconia via 3D gel deposition and conventional zirconia via milling, forming four groups: SGZ-A, SGZ-Ti, Lava-A, and Lava-Ti. Marginal gaps between the zirconia abutments and Ti-base were evaluated using micro-CT data, while gaps between the abutments and implant analogs were assessed on specimen cross-sections by using a stereomicroscope. Statistical analyses were conducted using the non-parametric Mann-Whitney U and Kruskal-Wallis tests with α set at 0.05. Results For the two-piece zirconia abutments, the SGZ-Ti group(external gaps:31 ± 20 μm, internal gaps:4 ± 7 μm) exhibited significantly smaller marginal gaps between the zirconia abutment and the Ti-base compared to the Lava-Ti group(external gaps:79 ± 48 μm, internal gaps:51 ± 44 μm) (P<0.001). For the one-piece zirconia abutments, the SGZ-A group(18.5 ± 5.5 μm) demonstrated a significantly smaller gap between the abutment and the implant analog compared to the Lava-A group(26.5 ± 10.0 μm) (P = 0.044). No significant difference was observed among SGZ-A, SGZ-Ti and Lava-Ti groups (P>0.05). Conclusion SGZ abutments demonstrate superior adaptation compared to conventional milled zirconia abutments at both the Ti base-abutment interface and the implant-abutment interface. The adaptation of one-piece SGZ abutments is comparable to that of prefabricated Ti-base abutments.https://doi.org/10.1186/s12903-025-06572-43D gel depositionZirconiaAbutmentImplant-supported restorationAdaptation |
| spellingShingle | Rong Li Yushu Liu Jinxing Sun Rui Zhang Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments BMC Oral Health 3D gel deposition Zirconia Abutment Implant-supported restoration Adaptation |
| title | Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments |
| title_full | Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments |
| title_fullStr | Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments |
| title_full_unstemmed | Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments |
| title_short | Adaptation assessment of all-ceramic self-glazed versus conventional zirconia implant abutments |
| title_sort | adaptation assessment of all ceramic self glazed versus conventional zirconia implant abutments |
| topic | 3D gel deposition Zirconia Abutment Implant-supported restoration Adaptation |
| url | https://doi.org/10.1186/s12903-025-06572-4 |
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