Evaluation of The Effect Of Apical Diameter On The Shaping Abilities of Four Different Rotary İnstrument Systems İn Curved Root Canals

Yıl 2022, Cilt: 13 Sayı: 2, 288 - 298, 31.08.2022

Mukadder İnci Başer Kolcu Erhan Özcan

https://doi.org/10.22312/sdusbed.1103569

Öz

İntroduction: Mechanical preparation is an important step of root canal therapy. Apical enlargement is recommended for effective disinfection.The aim of this study is to compare the shaping ability of PTG, PTN, RS and BR rotary file systems in curved canals up to the apical file size to 40
Material and Method: Before root canal instrumentation, pre-instrumented CBCT images of 60 MB canals of mandıbular molar teeth were taken and canals curvature angles were calculated. The samples were randomly divided into four groups (n=15),and instrumented up to the apical size 40. Changes in canal curvatures were measured after each file used in post-instrumented images. Statistical analysis was performed with the significance level set at p=0.05.
Results: As the apical tip size increased root canals were straightened significantly. In the apical size 25;RS and BR(25/04) were found to straighten the canal curvatures less than PTG whereas, PTG caused less straightening than PTN and BR(25/06). In the apical size 30; RS caused less straightening whereas PTN was the most. In the apical size 40; PTG and RS caused less straightening than PTN and BR(40/02), BR(40/04) caused the most straightening.
Conclusions: While all of the treatments in this study straightened the root canals as the apical size increased, and PTG and RS showed promising outcomes, the results differed depending on the taper and tip size.

Anahtar Kelimeler

Canal straightening, Shaping abilities, ProTaper Gold

Destekleyen Kurum

Selçuk University Scientific Research Projects Coordinatorship

Proje Numarası

14102029.

Eğimli Kök Kanallarında Dört Farklı Döner Alet Sisteminin Şekillendirme Yeteneklerine Farklı Apikal Boyutların Etkisinin Değerlendirilmesi

Öz

Giriş: Mekanik şekillendirme kök kanal tedavisinin önemli bir basamağıdır. Etkili dezenfeksiyon amacıyla apikal genişletme önerilmektedir. Bu çalışmanın amacı, PTG, PTN, RS ve BR döner alet sistemlerinin 40 apikal uç boyutuna kadar olan eğelerinin eğimli kök kanallarındaki şekillendirme yeteneklerini incelemektir.

Materyal ve Metot: Çalışmada, mandibular molar dişe ait 60 adet MB kanalın mekanik şekillendirme işlemi öncesinde KIBT görüntüsü alındı ve kanal eğim açıları hesaplandı. Sonra örnekler açılarına göre, randomize olarak 4 gruba ayrıldı (n=15) ve 40 apikal uç boyutuna kadar şekillendirildi. Şekillendirme sırasında her eğeden sonra KIBT görüntüsü alındı ve kanalların başlangıç açılarına göre açısal değişimleri hesaplandı. İstatistiksel anlam düzeyi p=0.05 olarak belirlendi.

Bulgular: Apical uç boyutu arttıkça kök kanal eğimlerinde düzleşme gözlendi.25 apikal uç boyutundaki aletler karşılaştırıldığında; RS ve BR(25/04) kök kanallarında PTG’ye göre daha az oranda kök kanallarını düzleştirirken, PTN ve BR(25/06)’nın diğer sistemlerden daha fazla oranda düzleşmeye neden olduğu belirlendi. 30 apikal uç boyutundaki aletler karşılaştırıldığında; RS’nin en az, PTN’nin ise en çok düzleşmeye neden olduğu tespit edildi. 40 apikal uç boyutundaki aletler karşılaştırıldığında; PTG ve RS, PTN ve BR'den(40/02)daha az düzleşmeye neden olurken,BR(40/04)’nin en fazla düzleşmeye neden olan eğe olduğu belirlendi.

Sonuç: Bu çalışmada incelenen tüm sistemler, apikal boyut arttığında daha fazla düzleşmeye neden olmaktadır. PTG ve RS diğer sistemlere göre daha umut verici sonuçlar ortaya koyarken, sonuçların taper ve uç boyutuna göre değişiklik gösterdiği ifade edilebilir.

Anahtar Kelimeler

Kök kanallarında düzleşme, Mekanik şekillendirme yeteneği, ProTaper Gold

Proje Numarası

14102029.

Kaynakça

• [1] Schneider SW. A comparison of canal preparations in straight and curved root canals. Oral Surgery, Oral Medicine, Oral Pathology [Internet]. 1971 [cited 2020 Feb 27];32(2):271–5.
• [2] Peters O, Peters C. Cleaning and Shaping of the Root Canal System. In: Hargreaves K, Cohen S, editors. Cohen’s Pathways Of the Pulp Tenth Edition. Missouri: Mosby Elsevier; 2011. p. 316–8.
• [3] González Sánchez JA, Duran-Sindreu F, de Noé S, Mercadé M, Roig M. Centring ability and apical transportation after overinstrumentation with ProTaper Universal and ProFile Vortex instruments. International Endodontic Journal. 2012 Jun;45(6):542–51.
• [4] Alrahabi M, Zafar MS, Adanir N. Aspects of Clinical Malpractice in Endodontics. Vol. 13, European Journal of Dentistry. Georg Thieme Verlag; 2019. p. 450–8.
• [5] Zhou H, Peng B, Zheng Y-F. An overview of the mechanical properties of nickel-titanium endodontic instruments. Endodontic Topics. 2013 Sep;29(1):42–54.
• [6] Razcha C, Zacharopoulos A, Anestis D, Mikrogeorgis G, Zacharakis G, Lyroudia K. Micro-Computed Tomographic Evaluation of Canal Transportation and Centering Ability of 4 Heat-Treated Nickel-Titanium Systems. Journal of Endodontics. 2020 May 1;46(5):675–81.
• [7] Pérez Morales M de las N, González Sánchez JA, Olivieri JG, Elmsmari F, Salmon P, Jaramillo DE, et al. Micro-computed Tomographic Assessment and Comparative Study of the Shaping Ability in Six NiTi files- An In Vitro Study. Journal of Endodontics, May;47(5):812-819
• [8] Haapasalo M, Shen Y. Evolution of nickel-titanium instruments: from past to future. Endodontic Topics. 2013 Sep;29(1):3–17.
• [9] Girgis D, Roshdy N, Journal HS-AD, 2020 U. Comparative Assessment of the Shaping and Cleaning Abilities of M-Pro and Revo-S versus ProTaper Next Rotary Ni-Ti Systems: An In Vitro study Advanced Dental Journal, 2(4), 162-176.
• [10] Lin J, Karabucak B, Sciences SL-J of D, 2020 U. Effect of sodium hypochlorite on conventional and heat-treated nickel-titanium endodontic rotary instruments–An in vitro study. Journal of Dental Sciences, 16(2), 738-743.
• [11] Honardar K, Assadian H, Shahab S, Jafari Z, Kazemi A, Nazarimoghaddam K, et al. Cone-beam Computed Tomographic Assessment of Canal Centering Ability and Transportation after Preparation with Twisted File and Bio RaCe Instrumentation. Journal of dentistry (Tehran, Iran), 11(4), 440.
• [12] Guedes OA, da Costa MVC, Dorilêo MCGO, de Oliveira HF, Pedro FLM, Bandeca MC, et al. Detection of Procedural Errors during Root Canal Instrumentation using Cone Beam Computed Tomography. Journal of international oral health : JIOH,7(3):28–32.
• [13] Bernardes RA, de Paulo RS, Pereira LO, Duarte MAH, Ordinola-Zapata R, de Azevedo JR. Comparative study of cone beam computed tomography and intraoral periapical radiographs in diagnosis of lingual-simulated external root resorptions. Dental Traumatology. 2012 Aug;28(4):268–72. [14] Estrela C, Bueno MR, Sousa-Neto MD, Pécora JD. Method for determination of root curvature radius using cone-beam computed tomography images. Brazilian Dental Journal. 2008;19(2):114–8.
• [15] Sirona D. PROTAPER NEXT_Technique Card_EN [Internet]. Available from: https://www.dentsplysirona.com/content/dam/dentsply/pim/manufacturer/Endodontics/Glide_Path__Shaping/Rotary__Reciprocating_Files/Shaping/ProTaper_Next_Rotary_Files/PROTAPER-NEXT-Rotary-File-w7rrx5e-en-1402
• [16] Dentsply. ProTaper Gold_Brochure_EN [Internet]. Available from: https://www.dentsply.com/content/dam/dentsply/pim/manufacturer/Endodontics/Glide_Path__Shaping/Rotary__Reciprocating_Files/Shaping/ProTaper_Gold_Rotary_Files/ProTaper-Gold-Brochure-p7btcwy-en-1502.pdf
• [17] Micro mega. Revo-S catalogs [Internet]. Available from: https://pdf.medicalexpo.com/pdf/micro-mega/revo-s/73278-118629.html
• [18] FKG Dental. Biorace brochure [Internet]. Available from: https://www.fkg.ch/sites/default/files/fkg_br_brochure_an_lowr.pdf
• [19] Mickel AK, Chogle S, Liddle J, Huffaker K, Jones JJ. The Role of Apical Size Determination and Enlargement in the Reduction of Intracanal Bacteria. Journal of Endodontics. 2007;33(1):21–3. [20] Aminoshariae A, Kulild JC. Master apical file size - smaller or larger: A systematic review of healing outcomes. Vol. 48, International Endodontic Journal. Blackwell Publishing Ltd; 2015. p. 639–47.
• [21] Bürklein S, Benten S, Schäfer E. Shaping ability of different single-file systems in severely curved root canals of extracted teeth. International Endodontic Journal. 2013 Jun;46(6):590–7.
• [22] Donnermeyer D, Viedenz A, Schäfer E, Bürklein S. Impact of new cross-sectional designs on the shaping ability of rotary NiTi instruments in S-shaped canals. Odontology. 2020 Apr 1;108(2):174–9.
• [23] Wu H, Peng C, Bai Y, Hu X, Wang L, Li C. Shaping ability of ProTaper Universal, WaveOne and ProTaper Next in simulated L-shaped and S-shaped root canals. BMC Oral Health. 2015 Dec 12;15(1):1–7.
• [24] Drukteinis S, Peciuliene V, Dummer PMH, Hupp J. Shaping ability of BioRace, ProTaper NEXT and Genius nickel-titanium instruments in curved canals of mandibular molars: a MicroCT study. International Endodontic Journal. 2019;52(1):86–93.
• [25] Velozo C, Silva S, Almeida A, Romeiro K, Vieira B, Dantas H, et al. Shaping ability of XP‐endo Shaper and ProTaper Next in long oval‐shaped canals: a micro‐computed tomography study. International Endodontic Journal.2020;53(7):998–1006.
• [26] 26. American Association of Endodontics. AAE Endodontic Case Difficulty Assessment Form and Guidelines [Internet]. 2006 [cited 2021 Feb 17]. Available from: www.aae.org
• [27] Ounsi HF, Franciosi G, Paragliola R, Al Huzaimi K, Salameh Z, Tay FR, et al. Comparison of two techniques for assessing the shaping efficacy of repeatedly used nickel-titanium rotary instruments. Journal of Endodontics.2011;37(6):847–50.
• [28] Mamede-Neto I, Borges AH, Guedes OA, de Oliveira D, Pedro FLM, Estrela C. Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography. The Open Dentistry Journal.2017;11(1):71–8.
• [29] Kabil E, Katić M, Anić I, Bago I. Micro–computed Evaluation of Canal Transportation and Centering Ability of 5 Rotary and Reciprocating Systems with Different Metallurgical Properties and Surface Treatments in Curved Root Canals. Journal of Endodontics. 2020 Mar 1;47(3):477–84.
• [30] Mokhtari H, Niknami M, Sohrabi A, Habibivand E, Mokhtari Zonouzi HR, Rahimi S, et al. Cone-beam computed tomography comparison of canal transportation after preparation with BioRaCe and Mtwo rotary instruments and hand K-flexofiles. Iranian Endodontic Journal.2014;9(3):180–4.
• [31] Gagliardi J, Versiani MA, De Sousa-Neto MD, Plazas-Garzon A, Basrani B. Evaluation of the shaping characteristics of ProTaper Gold, ProTaper NEXT, and ProTaper Universal in curved canals. Journal of Endodontics.2015;41(10):1718–24.
• [32] Schäfer E, Florek H. Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. Part 1. Shaping ability in simulated curved canals. International Endodontic Journal.2003;36(3):199–207.
• [33] Brito-Júnior M, Faria-E-Silva AL, Camilo CC, Pereira RD, Braga NMA, Sousa-Neto MD. Apical transportation associated with ProTaper® Universal F1, F2 and F3 instruments in curved canals prepared by undergraduate students. Journal of Applied Oral Science.2014;22(2):98–102.
• [34] Lam T V., Lewis DJ, Atkins DR, Macfarlane RH, Clarkson RM, Whitehead MG, et al. Changes in root canal morphology in simulated curved canals over-instrumented with a variety of stainless steel and nickel titanium files. Australian Dental Journal. 1999;44(1):12–9.
• [35] Bürklein S, Schäfer E. Critical evaluation of root canal transportation by instrumentation. Endodontic Topics. 2013 Sep;29(1):110–24.