Preparation Types In Endocrown Restorations

Year 2023, Volume: 3 Issue: 3, 601 - 607, 21.12.2023

Duygu Ece Keskin

Abstract

There are many direct and indirect treatment options that can be applied in the restoration of root canal treated teeth with excessive material loss. In order for the applied restorations to be successful in the long term, the prosthetic treatment to be applied after root canal treatment must be chosen correctly. Restorations made on teeth with root canal treatment should prevent the fracture of the remaining tooth tissue after root canal treatment, prevent contamination of the root canal system by preventing coronal leakage, and replace the lost tooth tissue and ensure the re-functioning of the tooth. Endocrowns, in which the core and crown structure are produced as a single piece in a monoblock form, are current and conservative restorations that can be applied for the restoration of root canal treated teeth. When cavity preparation is made in endocrowns, an amount of preparation should be made to provide sufficient space for the restoration, and care should be taken to plan in a way that will prevent fractures that may occur in the restoration. Different types of preparation have been proposed for endocrown restoration, including cavity design, intraradicular extension, axial wall angle, edge finish line, and pulp chamber depth. The purpose of this review article is to examine the preparation types of endocrown restorations.

Keywords

Endocrown, Cavity design, Intraradicular extension

Endokron Restorasyonlarda Preparasyon Çeşitleri

Abstract

Aşırı madde kaybı mevcut olan kök kanal tedavili dişlerin restorasyonunda uygulanabilecek bir çok direkt ve indirekt tedavi seçeneği bulunmaktadır. Uygulanan restorasyonların uzun dönemli başarılı olabilmesi için, kök kanal tedavisi sonrasında uygulanacak protetik tedavinin doğru bir şekilde seçilmesi gerekmektedir. Kök kanal tedavili dişlere yapılan restorasyonlar, kanal tedavisinden sonra kalan diş dokusunun kırılması önlenmeli, koronal sızıntıyı engelleyerek kök kanal sisteminin kontamine olması önlenmeli ve kayıp diş dokusunun yerini alarak, dişin yeniden fonksiyon görmesi sağlanmalıdır. Kor ve kron yapısının tek parça olarak mono blok bir biçimde üretildiği endokronlar, kök kanal tedavili dişlerin restorasyonu için uygulanabilecek güncel ve konservatif restorasyonlardır. Endokronlarda kavite preparasyonu yapılırken restorasyona yeterli yeri sağlayabilecek miktarda preparasyon yapılmalıdır ve restorasyonda oluşabilecek kırığı önleyecek bir şekilde planlama yapımına özen gösterilmelidir. Endokron restorasyonu için kavite tasarımı, intraradiküler uzantı, aksiyal duvar açısı, kenar bitiş çizgisi ve pulpa odası derinliğini de içeren farklı preparasyon türleri önerilmiştir. Bu derleme makalesinin amacı endokron restorasyonların preparasyon çeşitlerinin incelenmesidir.

Keywords

Endokron, Kavite tasarımı, İntraradiküler uzantı

References

• Abtahi, S., Alikhasi, M., & Siadat, H. (2022). Biomechanical behavior of endocrown restorations with different cavity design and CAD-CAM materials under a static and vertical load: A finite element analysis. The Journal of Prosthetic Dentistry, 127(4), 600.e1-600.e8. https://doi.org/10.1016/j.prosdent.2021.11.027
• Al-Dabbagh R. A. (2021). Survival and success of endocrowns: A systematic review and meta-analysis. The Journal of Prosthetic Dentistry, 125(3), 415.e1-415.e9. https://doi.org/10.1016/j.prosdent.2020.01.011
• Assif, D., & Gorfil, C. (1994). Biomechanical considerations in restoring endodontically treated teeth. The Journal of Prosthetic Dentistry, 71(6), 565-567. https://doi.org/10.1016/0022-3913(94)90438-3
• Azeem, R. A., & Sureshbabu, N. M. (2018). Clinical performance of direct versus indirect composite restorations in posterior teeth: A systematic review. Journal of Conservative Dentistry:JCD, 21(1), 2-9. https://doi.org/10.4103/JCD.JCD_213_16
• Azeez, G.M., & Çekiç Nagaş, I. (2019). Aşırı harabiyet gösteren endodontik tedavili dişlerin protetik restorasyonları. 7tepe Klinik, 15(2), 231-241.
• Bamajboor, A., & Dudley, J. (2022). The Influence of Ferrule on the Marginal Gap and Fracture Resistance of Zirconia Endocrowns. The International Journal of Prosthodontics, 35(4), 494-501. https://doi.org/10.11607/ijp.8060
• Biacchi, G. R., & Basting, R. T. (2012). Comparison of fracture strength of endocrowns and glass fiber post-retained conventional crowns. Operative Dentistry, 37(2), 130–136. https://doi.org/10.2341/11-105-L
• Bindl, A., & Mörmann, W. H. (1999). Clinical evaluation of adhesively placed Cerec endo-crowns after 2 years--preliminary results. The Journal of Adhesive Dentistry, 1(3), 255-265.
• Bindl, A., Richter, B., & Mörmann, W. H. (2005). Survival of ceramic computer-aided design/manufacturing crowns bonded to preparations with reduced macroretention geometry. The International Journal of Prosthodontics, 18(3), 219-224.
• Chalifoux P. R. (1998). Restoration of endodontically treated teeth: review, classification, and post design. Practical Periodontics and Aesthetic Dentistry : PPAD, 10(2), 247-256.
• Cheung W. (2005). A review of the management of endodontically treated teeth. Post, core and the final restoration. Journal of The American Dental Association, 136(5), 611-619. https://doi.org/10.14219/jada.archive.2005.0232
• Dietschi, D., Duc, O., Krejci, I., & Sadan, A. (2008). 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 international, 39(2), 117-129.
• Einhorn, M., DuVall, N., Wajdowicz, M., Brewster, J., & Roberts, H. (2019). Preparation Ferrule Design Effect on Endocrown Failure Resistance. Journal of Prosthodontics : Official Journal of The American College of Prosthodontists, 28(1), 237-242. https://doi.org/10.1111/jopr.12671
• El-Damanhoury, H. M., Haj-Ali, R. N., & Platt, J. A. (2015). Fracture resistance and microleakage of endocrowns utilizing three CAD-CAM blocks. Operative Dentistry, 40(2), 201-210. https://doi.org/10.2341/13-143-L
• Fages, M., & Bennasar, B. (2013). The endocrown: a different type of all-ceramic reconstruction for molars. J Can Dent Assoc, 79, d140.
• Forberger, N., & Göhring, T. N. (2008). Influence of the type of post and core on in vitro marginal continuity, fracture resistance, and fracture mode of lithia disilicate-based all-ceramic crowns. The Journal of Prosthetic Dentistry, 100(4), 264-273. https://doi.org/10.1016/S0022-3913(08)60205-X
• Gaintantzopoulou, M. D., & El-Damanhoury, H. M. (2016). Effect of Preparation Depth on the Marginal and Internal Adaptation of Computer-aided Design/Computer-assisted Manufacture Endocrowns. Operative Dentistry, 41(6), 607-616. https://doi.org/10.2341/15-146-L
• Guo, J., Wang, Z., Li, X., Sun, C., Gao, E., & Li, H. (2016). A comparison of the fracture resistances of endodontically treated mandibular premolars restored with endocrowns and glass fiber post-core retained conventional crowns. The Journal of Advanced Prosthodontics, 8(6), 489-493. https://doi.org/10.4047/jap.2016.8.6.489
• Heydecke, G., Butz, F., & Strub, J. R. (2001). Fracture strength and survival rate of endodontically treated maxillary incisors with approximal cavities after restoration with different post and core systems: an in-vitro study. Journal of Dentistry, 29(6), 427-433. https://doi.org/10.1016/s0300-5712(01)00038-0
• Jeong, H., Kim, S., Kim, J., & Choi, N. (2019). Post-endodontic Restoration on Erupting Permanent First Molars Using Endocrown with a Polyglass Composite Resin: Report of Two Cases. The Journal Of The Korean Academy of Pediatric Dentistry, 46(1), 111-118. http://doi.org/10.5933/JKAPD.2019.46.1.111
• Lander, E., & Dietschi, D. (2008). Endocrowns: a clinical report. Quintessence international, 39(2), 99–106.
• Magne, P., Carvalho, A. O., Bruzi, G., Anderson, R. E., Maia, H. P., & Giannini, M. (2014). Influence of no-ferrule and no-post buildup design on the fatigue resistance of endodontically treated molars restored with resin nanoceramic CAD/CAM crowns. Operative Dentistry, 39(6), 595-602. https://doi.org/10.2341/13-004-L
• Moore, P. Cerec Doctors Publicitions. Charlotte, NC, Dentsply Sirona; 2013.
• Pissis P. (1995). Fabrication of a metal-free ceramic restoration utilizing the monobloc technique. Practical Periodontics and Aesthetic Dentistry : PPAD, 7(5), 83-94.
• Ree, M., & Schwartz, R. S. (2010). The endo-restorative interface: current concepts. Dental Clinics of North America, 54(2), 345–374. https://doi.org/10.1016/j.cden.2009.12.005
• Schwartz, R. S., & Robbins, J. W. (2004). Post placement and restoration of endodontically treated teeth: a literature review. Journal of Endodontics, 30(5), 289-301. https://doi.org/10.1097/00004770-200405000-00001
• Soliman, M., Alzahrani, G., Alabdualataif, F., Eldwakhly, E., Alsamady, S., Aldegheishem, A., & Abdelhafeez, M. M. (2022). Impact of Ceramic Material and Preparation Design on Marginal Fit of Endocrown Restorations. Materials, 15(16), 5592. https://doi.org/10.3390/ma15165592
• Sorensen, J. A., & Engelman, M. J. (1990). Ferrule design and fracture resistance of endodontically treated teeth. The Journal of Prosthetic Dentistry, 63(5), 529-536. https://doi.org/10.1016/0022-3913(90)90070-s
• Taha, D., Spintzyk, S., Schille, C., Sabet, A., Wahsh, M., Salah, T., & Geis-Gerstorfer, J. (2018). Fracture resistance and failure modes of polymer infiltrated ceramic endocrown restorations with variations in margin design and occlusal thickness. Journal of Prosthodontic Research, 62(3), 293-297. https://doi.org/10.1016/j.jpor.2017.11.003
• Tribst, J. P. M., Lo Giudice, R., Dos Santos, A. F. C., Borges, A. L. S., Silva-Concílio, L. R., Amaral, M., & Lo Giudice, G. (2021). Lithium Disilicate Ceramic Endocrown Biomechanical Response According to Different Pulp Chamber Extension Angles and Filling Materials. Materials, 14(5), 1307. https://doi.org/10.3390/ma14051307
• Tzimas, K., Tsiafitsa, M., Gerasimou, P., & Tsitrou, E. (2018). Endocrown restorations for extensively damaged posterior teeth: clinical performance of three cases. Restorative Dentistry & Endodontics, 43(4), e38. https://doi.org/10.5395/rde.2018.43.e38
• Vinola, S.M.J., Balasubramanian, S., Mahalaxmi, S. (2017). "ENDOCROWN”—an effective viable esthetic option for expurgated endodontically treated teeth: two case reports. Journal of Operative Dentistry & Endodontics, 2(2), 97-102. https:// doi.10.5005/jp-journals-10047-0046
• Zhi-Yue, L., & Yu-Xing, Z. (2003). Effects of post-core design and ferrule on fracture resistance of endodontically treated maxillary central incisors. The Journal of Prosthetic Dentistry, 89(4), 368–373. https://doi.org/10.1067/mpr.2003.73
• Zhu, J., Wang, D., Rong, Q., Qian, J., & Wang, X. (2020). Effect of central retainer shape and abduction angle during preparation of teeth on dentin and cement layer stress distributions in endocrown-restored mandibular molars. Dental Materials Journal, 39(3), 464-470. https://doi.org/10.4012/dmj.2019-050