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DOI :10.26650/eor.20241509539 IUP :10.26650/eor.20241509539 Tam Metin (PDF)

CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.

Amaç: Bu in-vitro çalışmanın amacı, üç farklı modern malzemeden CAD/CAM yöntemiyle üretilen post-core restorasyonlarının, iki farklı 5 eksenli frezeleme makinesinden elde edilen üç boyutlu dijital doğruluğunu değerlendirmektir.

Gereç ve Yöntem: Frezeleme, tarama ve 3D analiz protokollerinin standartlaştırılması amacıyla belirteçlerle desteklenen standart bir sanal post-core CAD tasarımı, iki farklı 5 eksenli frezeleme makinesinin CAM yazılımına aktarıldı: CORiTEC 350i ve InLab MC X5. Üç farklı malzemeden (zirkonya, fiber-cam kompozit ve poliétereterketon [PEEK]) özel post-core restorasyonları üretildi. Her bir malzeme için her makinede 10 adet post-core frezelenerek toplamda 60 adet numune hazırlandı. Frezeleme işleminin ardından, post-core restorasyonları standart bir yöntemle tarandı. Tarama verileri, referans CAD tasarımıyla üst üste getirilerek 3D yüzey sapmaları değerlendirildi. Frezelenen post-core restorasyonların doğruluğu üzerindeki malzeme ve frezeleme makinesi etkileri, iki yönlü varyans analizi (ANOVA) ile analiz edildi.

Bulgular: Malzeme ve frezeleme makinesi arasında anlamlı bir etkileşim bulunmadı (p = 0.813). PEEK, zirkonyaya (ortalama sapma: 57.2 µm, p < 0.001) ve cam-fiber kompozite (ortalama sapma: 48.8 µm, p = 0.017) kıyasla önemli ölçüde daha düşük sapmalar gösterdi (ortalama sapma: 37.2 µm). CORiTEC 350i, PEEK post-core restorasyonlarını InLab MC X5'e göre ortalama 12.7 µm daha düşük sapma ile üretti (p = 0.03). Ancak diğer malzeme-makine kombinasyonlarında anlamlı bir fark gözlemlenmedi.

Sonuç: Her iki frezeleme makinesi de post-core restorasyonlarının üretiminde yüksek doğruluk sergiledi. PEEK, doğruluk açısından zirkonyadan daha üstün performans gösterdi. CORiTEC 350i ile frezelenen PEEK, cam-fiber kompozite kıyasla küçük bir doğruluk artışı sağladı; ancak InLab MC X5 ile frezelenen restorasyonlarda anlamlı bir fark bulunmadı. CORiTEC 350i, PEEK malzeme ile en düşük 3D sapmayı elde ederek frezeleme doğruluğu üzerinde hem malzemenin hem de makinenin etkisini vurgulamaktadır

Anahtar Kelimeler: 3D Analiz, CAD/CAM, özel post-core; cam-fiber kompozit, PEEK, doğruluk, zirkonya

DOI :10.26650/eor.20241509539 IUP :10.26650/eor.20241509539 Tam Metin (PDF)

The trueness of CAD-CAM custom-milled post-and-cores: a comparison of three materials and two milling systems

Ra’fat I. Farah

Purpose: The purpose of this in-vitro study was to evaluate the 3D digital trueness of CAD/CAM custom milled post-and-cores fabricated from three contemporary materials using two different 5- axis milling machines.

Materials and Methods: A standardized virtual post-and-core CAD design, augmented with landmarks for the standardization of milling, scanning, and 3D analysis protocols, was imported into the CAM software of two different 5-axis milling machines: the CORiTEC 350i and the InLab MC X5. Custom post-and-cores were fabricated from three distinct materials: zirconia, fiber-glass composite, and polyetheretherketone (PEEK). For each material, 10 post-and-cores were milled on each machine, resulting in a total of 60 custom samples. After milling, these post-and-cores were scanned using a standardized method. The resulting scan meshes were superimposed onto the reference CAD design mesh to evaluate 3D surface deviations. A two-way analysis of variance (ANOVA) was employed to determine the effects of material and milling machine on the trueness of the milled post-and-cores.

Results: No significant interaction between material and milling machine was found (p=0.813). PEEK showed significantly lower deviations (mean of 37.2 µm) compared to zirconia (57.2 µm, p<0.001) and glass-fiber composite (48.8 µm, p=0.017). The 350i produced PEEK post-and-cores with mean deviations of 12.7 µm less than the MC X5 (p=0.03), with no significant differences for other material-machine combinations.

Conclusion: Both milling machines demonstrated high trueness in milling post-and-cores. PEEK outperformed zirconia in trueness. When milled with the CORiTEC 350i, PEEK showed a small improvement in trueness over glass-fiber; however, no significant difference was observed with the InLab MC X5. The CORiTEC 350i excelled in milling PEEK, achieving the least 3D deviation, highlighting the influence of both material and machine on the trueness of milled post-and-cores.

Anahtar Kelimeler: 3D Analysis, CAD/CAM, custom post-and-core, fiber-glass composite, PEEK, trueness, zirconia

Referanslar

1. Baba NZ. Contemporary Restoration of Endodontically Treated Teeth. Evidence Based Diagnosis and Treatment Planning. 1 ed. Hanover Park, IL: Quintessence Publishing Co. Ltd; 2013. google scholar
2. Schwartz RS, Robbins JW. Post placement and restoration of endodontically treated teeth: a literature review. J Endod 2004;30:289-301. google scholar
3. Vano M, Goracci C, Monticelli F, et al. The adhesion between fibre posts and composite resin cores: the evaluation of microtensile bond strength following various surface Chemical treatments to posts. Int Endod J 2006;39:31-9. google scholar
4. Maccari PC, Cosme DC, Oshima HM et al. Fracture strength of endodontically treated teeth with flared root canals and restored with different post systems. J Esthet Restor Dent 2007;19:30-6. google scholar
5. Juloski J, Radovic I, Goracci C, et al. Ferrule effect: a literature review. J Endod 2012;38:11-9. google scholar
6. Dietschi D, Duc O, Krejci I, et al. Biomechanical considerations for the restoration of endodontically treated teeth: a systematic review of the Literature, Part II. Evaluation of fatigue behavior, interfaces, and in vivo studies. Quintessence Int 2008;39:117-29. google scholar
7. Gutierrez MA, Guerrero CA, Baldion PA. Efficacy of CAD/CAM Glass Fiber Posts for the Restoration of Endodontically Treated Teeth. Int J Biomater 2022;2022:8621835. google scholar
8. Ghanem N, Ali H, Bahrli N, Hassan H. Clinical performance of custom-milled polyetherketoneketone (PEKK) posts and cores: A 12-month follow-up randomized controlled pilot study. Clin Exp Dent Res 2024;10:e854. google scholar
9. Farah RI, Aloraini AS, Al-Haj Ali SN. Fabrication of Custom Post-And-Core Using a Directly Fabricated Silicone Pattern and Digital Workflow. J Prosthodont 2020;29:631-5. google scholar
10. Ozkurt Z, Işeri U, Kazazoğlu E. Zirconia ceramic post systems: a literatüre review and a case report. Dent Mater J 2010;29:233-45. google scholar
11. Awad MA, Marghalani TY. Fabrication of a custom-madeceramic post and core using CAD-CAM technology. J Prosthet Dent 2007;98:161-2. google scholar
12. Falcao Spina DR, da Costa RG, Correr GM, et al. Scanning of root canal impression for the fabrication of a resin CAD-CAM-customized post-and-core. J Prosthet Dent 2018;120:242-5. google scholar
13. Kasem AT, Shams M, Tribst JPM. The Use of Polyetheretherketone (PEEK) as an Alternative Post and Core Material: Five-Year Follow-Up Report. Dent J (Basel) 2022;10:237. google scholar
14. Gharat N, Bhatnagar VM, Gill S, Shah NP. A comparative evaluation of internal and marginal fits of custom post and core fabricated using conventional and two digital techniques: An in vitro study. J Indian Prosthodont Soc 2024;24:95-102. google scholar
15. Pranati T, Manish Ranjan, Hima Sandeep A. Marginal Adaptability of Custom Made Cast Post Made by Different Techniques-A Literatüre Review. Int J Dentistry Oral Sci 2021;8:3954-9. google scholar
16. Sorensen JA, Engelman MJ. Effect of post adaptation on fracture resistance of endodontically treated teeth. J Prosthet Dent 1990;64:419-24. google scholar
17. Bhaktikamala A, Chengprapakorn W, Serichetaphongse P. Effect of Different Post Materials and Adaptability on Fracture Resistance and Fracture Mode in Human Endodontically Treated Teeth. Int J Dent 2022;2022:9170081. google scholar
18. Mously HA, Finkelman M, Zandparsa R, Hirayama H. Marginal and internal adaptation of ceramic crown restorations fabricated with CAD/CAM technology and the heat-press technique. J Prosthet Dent 2014;112:249-56. google scholar
19. Kale E, Seker E, Yilmaz B, Ozcelik TB. Effect of cement space on the marginal fit of CAD-CAM-fabricated monolithic zirconia crowns. J Prosthet Dent 2016;116:890-5. google scholar
20. Liao M, Meng H, Xie H, Chen C. Evaluation of a half-digital technique for fabricating customized post-cores: A pilot study. Heliyon 2023;9:e15363. google scholar
21. Al-Qarni FD. Customized Post and Cores Fabricated with CAD/CAM Technology: A Literature Review. Int J Gen Med 2022;15:4771-9. google scholar
22. Wu Y, Qi H, Wang D, Liao M, Zhang Y, Zhang J, Xie H. Evaluation of custom posts and cores fabricated by two digital technologies in core and post space dimensions. J Prosthodont 2024;33:593-605. google scholar
23. Perucelli F, Goulart da Costa R, Machado de Souza E, Rached RN. Effect of half-digital workflows on the adaptation of custom CAD-CAM composite post-and-cores. J Prosthet Dent 2021;126:756-62. google scholar
24. Kirsch C, Ender A, Attin T, Mehl A. Trueness of four different milling procedures used in dental CAD/CAM systems. Clin Oral Investig 2017;21:551-8. google scholar
25. Kim CM, Kim SR, Kim JH, et al. Trueness of milled prostheses according to number of ball-end mill burs. J Prosthet Dent 2016;115:624-9. google scholar
26. Al Hamad KQ, Al-Rashdan RB, Al-Rashdan BA, Baba NZ. Effect of Milling Protocols on Trueness and Precision of Ceramic Crowns. J Prosthodont 2021;30:171-6. google scholar
27. Bosch G, Ender A, Mehl A. A 3-dimensional accuracy analysis of chairside CAD/CAM milling processes. J Prosthet Dent 2014;112:1425-31. google scholar
28. Cho JH, Yoon HI, Han JS, Kim DJ. Trueness of the Inner Surface of Monolithic Crowns Fabricated by Milling of a Fully Sintered (Y, Nb)-TZP Block in Chairside CAD-CAM System for Single-visit Dentistry. Materials (Basel) 2019;12:3253. google scholar
29. Wang W, Yu H, Liu Y, Jiang X, Gao B. Trueness analysis of zirconia crowns fabricated with 3-dimensional printing. J Prosthet Dent 2019;121:285-91. google scholar
30. Thomas AA, Daniel AY, Gandhi N, Roy N, Varghese KG, Wadhwa S, Mathew JE. Surface trueness and precision of interim restorations fabricated by digital light processing and CAD-CAM milling systems. J Prosthet Dent 2023;130:611.e1-7. google scholar
31. Nulty AB. A Comparison of Full Arch Trueness and Precision of Nine Intra-Oral Digital Scanners and Four Lab Digital Scanners. Dent J (Basel) 2021;9:75. google scholar
32. Farah RI, Alresheedi B. Evaluation of the marginal and internal fit of CAD/CAM crowns designed using three different dental CAD programs: a 3-dimensional digital analysis study. Clin Oral Investig 2023;27:263-71. google scholar
33. Dupagne L, Mawussi B, Tapie L, Lebon N. Comparison of the measurement error of optical impressions obtained with four intraoral and one extra-oral dental scanners of post and core preparations. Heliyon 2023;9:e13235. google scholar
34. Leven R, Schmidt A, Binder R, Kampschulte M, Vogler J, Wöstmann B, Schlenz MA. Accuracy of Digital Impression Taking with Intraoral Scanners and Fabrication of CAD/CAM Posts and Cores in a Fully Digital Workflow. Materials (Basel) 2022;15:4199. google scholar
35. Tapie L, Lebon N, Mawussi B, et al. Understanding dental CAD/CAM for restorations— accuracy from a mechanical engineering viewpoint. Int J Comput Dent 2015;18:343-67. google scholar
36. Nagi N, Fouda AM, Bourauel C. Comparative evaluation of internal fit and marginal gap of endocrowns using lithium disilicate and polyether ether ketone materials - an in vitro study. BMC Oral Health 2023;23:207. google scholar
37. Negm EE, Aboutaleb FA, Alam-Eldein AM. Virtual Evaluation of the Accuracy of Fit and Trueness in Maxillary Poly(etheretherketone) Removable Partial Denture Frameworks Fabricated by Direct and Indirect CAD/CAM Techniques. J Prosthodont. 2019;28:804-10. google scholar
38. El Ghoul WA, Özcan M, Ounsi H, Tohme H, Salameh Z. Effect of different CAD-CAM materials on the marginal and internal adaptation of endocrown restorations: An in vitro study. J Prosthet Dent 2020;123:128-34. google scholar
39. Oh HS, Lim YJ, Kim B, Kim MJ, Kwon HB, Baek YW. Effect of scanning-aid agents on the scanning accuracy in specially designed metallic models: A laboratory study. PLoS One 2022;17:e0267742. google scholar
40. Cho JH, Çakmak G, Yilmaz B, Yoon HI. Effect of CAD-CAM restorative materials and scanning aid conditions on the accuracy and time efficiency of intraoral scans. J Prosthodont 2023;32:608-15. google scholar
41. Ahmed WM, Abdallah MN, McCullagh AP, Wyatt CCL, Troczynski T, Carvalho RM. Marginal Discrepancies of Monolithic Zirconia Crowns: The Influence of Preparation Designs and Sintering Techniques. J Prosthodont 2019;28:288-98. google scholar
42. de Paula Silveira AC, Chaves SB, Hilgert LA, Ribeiro AP. Marginal and internal fit of CAD-CAM-fabricated composite resin and ceramic crowns scanned by 2 intraoral cameras. J Prosthet Dent 2017;117:386-92. google scholar

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DIŞA AKTAR

APA

Farah, R.I. (2019). CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.. European Oral Research, 0(0), -. https://doi.org/10.26650/eor.20241509539

AMA

Farah R I. CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.. European Oral Research. 2019;0(0):-. https://doi.org/10.26650/eor.20241509539

ABNT

Farah, R.I. CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.. European Oral Research, [Publisher Location], v. 0, n. 0, p. -, 2019.

Chicago: Author-Date Style

Farah, Ra’fat I.,. 2019. “CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması..” European Oral Research 0, no. 0: -. https://doi.org/10.26650/eor.20241509539

Chicago: Humanities Style

Farah, Ra’fat I.,. “CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması..” European Oral Research 0, no. 0 (Mar. 2025): -. https://doi.org/10.26650/eor.20241509539

Harvard: Australian Style

Farah, RI 2019, 'CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.', European Oral Research, vol. 0, no. 0, pp. -, viewed 10 Mar. 2025, https://doi.org/10.26650/eor.20241509539

Harvard: Author-Date Style

Farah, R.I. (2019) ‘CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.’, European Oral Research, 0(0), pp. -. https://doi.org/10.26650/eor.20241509539 (10 Mar. 2025).

MLA

Farah, Ra’fat I.,. “CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması..” European Oral Research, vol. 0, no. 0, 2019, pp. -. [Database Container], https://doi.org/10.26650/eor.20241509539

Vancouver

Farah RI. CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.. European Oral Research [Internet]. 10 Mar. 2025 [cited 10 Mar. 2025];0(0):-. Available from: https://doi.org/10.26650/eor.20241509539 doi: 10.26650/eor.20241509539

ISNAD

Farah, Ra’fatI.. “CAD-CAM yöntemiyle frezelenmiş post-core restorasyonlarının doğruluğu: üç malzeme ve iki frezeleme sisteminin karşılaştırılması.”. European Oral Research 0/0 (Mar. 2025): -. https://doi.org/10.26650/eor.20241509539

ZAMAN ÇİZELGESİ

Gönderim	03.07.2024
Kabul	09.11.2024
Çevrimiçi Yayınlanma	20.02.2025

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