Research Progress of Integrated Post and Core Prepared by Digital Impression of Post Space

doi:10.13701/j.cnki.kqyxyj.2025.11.002

Abstract

Abstract: Post and core are commonly used to repair the residual crown and root of the tooth with large defects, and to provide support and retention for the final crown prosthesis. Post and core can be divided into integrated post and core and pre-formed post plus resin core. The integrated post and core is suitable for the trumpet shape of the root canal, with good marginal fidelity and high overall strength. The traditional method of making integrated post and core is to use silicone rubber to make post space impression and cast integrated metal post and core. With the application of digital technology in stomatology, digital process of making integrated post and core has become a common clinical production method. In this paper, the research of acquiring digital impression of post space and preparing integrated post and core by digital process is summarized.

Key words: tooth defect, customed post-and-core, digital intraoral impression, scanning-aid materials

ZOU Junbin, YIN Lu. Research Progress of Integrated Post and Core Prepared by Digital Impression of Post Space[J]. Journal of Oral Science Research, 2025, 41(11): 937-940.

References

[1] Al-Qarni FD. Customized post and cores fabricated with CAD/CAM technology: A literature review[J]. Int J Gen Med, 2022, 15:4771-4779.
[2] 冯昌芬,逄键梁. CAD/CAM一体化纤维桩核的研究进展[J].口腔颌面修复学杂志,2015,16(5):318-320.
[3] Lee JH, Sohn DS, Lee CH. Fabricating a fiber-reinforced post and zirconia core with CAD/CAM technology[J]. J Prosthet Dent, 2014, 112(3): 683-685.
[4] 陈志宇,李雅,卫绪懿,等.基于牙齿根桩印模三维扫描重建的根桩模型精度分析[J].中国科技论文,2013,8(4):350-354.
[5] 顾晓宇,王亚平,王勇,等.个性化桩核修复体计算机辅助设计初探[J].中华口腔医学杂志,2009,44(10):629-633.
[6] Liu P, Deng XL, Wang XZ. Use of a CAD/CAM-fabricated glass fiber post and core to restore fractured anterior teeth: A clinical report[J]. J Prosthet Dent, 2010, 103(6): 330-333.
[7] Libonati A, Di Taranto V, Gallusi G, et al. CAD/CAM customized glass fiber post and core with digital intraoral impression: A case report[J]. Clin Cosmet Investig Dent, 2020, 12: 17-24.
[8] Hendi AR, Moharrami M, Siadat H, et al. The effect of conventional, half-digital, and full-digital fabrication techniques on the retention and apical gap of post and core restorations[J]. J Prosthet Dent, 2019, 121(2): 364.e1-364.e6.
[9] 廖梦圆,严斌,吴大明,等.一种新型数字化桩核修复技术[J].口腔医学,2021,41(9):825-829.
[10] Assif D, Bleicher S. Retention of serrated endodontic posts with a composite luting agent: effect of cement thickness[J]. J Prosthet Dent, 1986, 56(6):689-691.
[11] Gomes GM, Rezende EC, Gomes OM, et al. Influence of the resin cement thickness on bond strength and gap formation of fiber posts bonded to root dentin[J]. J Adhes Dent, 2014, 16(1):71-78.
[12] Perucelli F, Goulart da Costa R, Machado de Souza E, et al. Effect of half-digital workflows on the adaptation of custom CAD-CAM composite post-and-cores[J]. J Prosthet Dent, 2021, 126(6): 756-762.
[13] Piangsuk T, Dawson DV, El-Kerdani T, et al. The accuracy of post and core fabricated with digital technology[J]. J Prosthodont, 2023, 32(3): 221-226.
[14] Kanduti D, Korat L, Kosec T, et al. Comparison between accuracy of posts fabricated using a digital CAD/CAM technique and a conventional direct technique[J]. Int J Prosthodont, 2021, 34(2): 212-220.
[15] Perucelli F, Goulart da Costa R, Machado de Souza E, et al. Effect of half-digital workflows on the adaptation of custom CAD-CAM composite post-and-cores[J]. J Prosthet Dent, 2021, 126(6):756-762.
[16] Moustapha G, AlShwaimi E, Silwadi M, et al. Marginal and internal fit of CAD/CAM fiber post and cores[J]. Int J Comput Dent, 2019, 22(1): 45-53.
[17] Leven R, Schmidt A, Binder R, et al. Accuracy of digital impression taking with intraoral scanners and fabrication of CAD/CAM posts and cores in a fully digital workflow[J]. Materials (Basel), 2022, 15(12):4199.
[18] Moshonov J, Slutzky-Goldberg I, Gottlieb A, et al. The effect of the distance between post and residual gutta-percha on the clinical outcome of endodontic treatment[J]. J Endod, 2005, 31(3): 177-179.
[19] Elter B, Diker B, Tak Ö. The trueness of an intraoral scanner in scanning different post space depths[J]. J Dent, 2022, 127: 104352.
[20] Almalki A, Conejo J, Kutkut N, et al. Evaluation of the accuracy of direct intraoral scanner impressions for digital post and core in various post lengths: An in-vitro study[J]. J Esthet Restor Dent, 2024, 36(4): 673-679.
[21] 王勇.口内数字印模技术[J].口腔医学,2015,35(9):705-709,743.
[22] 肖静,滕伟. 三维数字化扫描在口腔修复领域中的应用[J].国际口腔医学杂志,2014,41(1): 63-67.
[23] 黄翠,刘峰,满毅,等.口内数字印模技术[J].实用口腔医学杂志,2023,39(6):689-695.
[24] Jun-Ho Cho, Han JS, Yoon HI. Effect of translucency of CAD-CAM ceramic restorative materials and scanning aid conditions on the accuracy of intraoral scans[J]. J Dent Sci, 2023, 18(3): 1212-1218.
[25] Cho JH, Çakmak G, Yilmaz B, et al. Effect of CAD-CAM restorative materials and scanning aid conditions on the accuracy and time efficiency of intraoral scans[J]. J Prosthodont, 2023, 32(7): 608-615.
[26] Oh HS, Lim YJ, Kim B, et al. Influence of applied liquid-type scanning-aid material on the accuracy of the scanned image: An in vitro experiment[J]. Materials (Basel), 2020, 13(9):2034.