时间标签：数据日期 2026-11-05 · 生成时间 2026-11-05 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/11/02 – 2026/11/06 ｜ 情报发生日期 2026-11-05
研究问题
Although the processing precision of the ACJ can reach 10 μm [16], we hypothesize that the thin wall of MZ32 might endure macroscopic warping during sintering [22].；We hypothesize that this difference may be attributable to the feature resolution [24].
方法
Fig. 2(A) Samples of ACJ printed zirconia post.；The samples were coated with gold for scanning electron microscopy (SEM) (VK-S250, Keyence, Japan) observation.；All the values were measured three times, and the average was calculated for comparison.To evaluate the microstructural printing accuracy across groups with different design widths, the coefficient of variation (CV) was used instead of the standard deviation (SD).
核心结论
ACJ-fabricated zirconia restorations exhibit greater geometric precision and demonstrate technical feasibility in manufacturing customized morphological features [10].；These findings support the rationale that surface microstructures—including the longitudinal grooves designed in the present work—can contribute to micromechanical retention.；To date, no studies have investigated printed zirconia posts, and comparison studies on the properties of printed zirconia posts with different microstructures are lacking.This study demonstrated the possibility of fabricating zirconia posts with microgrooves via ACJ printing.
局限
Alternative surface pretreatments—including airborne-particle abrasion, laser irradiation, and MDP-containing primers—have been investigated [12, 14], but each has inherent limitations, such as introducing surface flaws or requiring specialized equipment [12, 14].；However, before bonding tests, it is essential to first establish the printability, accuracy, and baseline mechanical properties of such microstructured posts.；However, this interpretation remains speculative and requires direct validation for the ACJ system used in this study.The flexural strength of zirconia can be high.
对本项目的价值
中等价值：属「衰老机制与老年临床」方向；其他衰老相关栏目可用作本项目文献库与综述素材。 ｜ 价值分 2.6/5（★★★☆☆）
全文来源
PubMed PMC JATS（正文 25,962 字符，题名指纹 1.0，已过 PubMed PMCID 官方关联 + 题名指纹 + 正文长度归属校验）
原文题录
- 中文题名：带纵向微槽 3D 打印氧化锆纤维桩的表面形貌、打印精度与弯曲强度
- 英文标题：Surface morphology, printing accuracy and flexural strength of 3D-printed zirconia posts with longitudinal microgrooves.
- 期刊与标识：BMC oral health · PMID 42968074 · DOI 10.1186/s12903-026-09244-z · PMC PMC13726071