پیوندهای مفید
آمار
| تعداد نشریات | 20 |
| تعداد شماره‌ها | 1,118 |
| تعداد مقالات | 10,259 |
| تعداد مشاهده مقاله | 42,325,724 |
| تعداد دریافت فایل اصل مقاله | 9,251,479 |
The Effect of Photodynamic Therapy on the Smear Layer Removal: a Scanning Electron Microscopic Study | ||
| Journal of Dentistry | ||
| مقاله 2، دوره 22، شماره 3 - شماره پیاپی 72، آذر 2021، صفحه 162-168 اصل مقاله (474.15 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.30476/dentjods.2020.85208.1118 | ||
| نویسندگان | ||
| Negin Ghasemi1؛ Zahra Sadat Torabi* 2 | ||
| 1Dept. of Endodontics, Dental and Periodontal Research Center, Dental Faculty, Tabriz University of Medical Sciences, Tabriz, Iran. | ||
| 2Resident Dept. Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran. | ||
| چکیده | ||
| Statement of the Problem: The efficacy of photodynamic therapy (PDT) in smear layer removal compared to the currently accepted protocol is not well established. Purpose: This study aims to evaluate the effect of PDT on smear layer removal from human root canal compared to combined use of irrigation solutions including sodium hypochlorite (NaOCl) and ethylene diamine tetra acetic acid (EDTA) by scanning electron microscopy (SEM). Materials and Method: In this in vitro study, straight roots from 48 extracted human maxillary incisors and canines were selected and decoronated. Instrumentation was completed with RaCe rotary system and normal saline irrigation between files. Then roots were randomly divided into 3 groups (n=16). Group 1 was the control group to confirm smear layer formation. In the group 2, the canals were irrigated with 2ml of 2.5% NaOCl solution for 10 minutes and 2ml of 17% EDTA solution for 1 minute. In the group 3, PDT with methylene blue and diode laser (625nm, 150mW, for 5minutes) was the final procedure for smear layer removal. All the specimens were sectioned into two halves, gold coated, and analyzed under SEM. The smear layer in the coronal, middle, and apical thirds, were evaluated and scored by two examiners independently. Statistical analysis was done using Chi-square test. Results: It was observed that the NaOCl+EDTA removed the smear layer significantly better than PDT in the coronal and apical thirds (p < 0.05) whereas PDT was unable to remove the smear layer in none of the root areas. At the apical thirds, there was no significant difference between NaOCl+EDTA and PDT (p < 0.05). Both procedures were unable to remove smear layer from radicular dentine of this area. Conclusion:According to the results of this in vitro study, the use of PDT alone is not recommended to remove smear layer. The combined application of NaOCl and EDTA is ineffective in removing smear layer of apical third, despite its efficacy on the coronal and middle regions. | ||
| کلیدواژه‌ها | ||
| Photochemotherapy؛ Root Canal Therapy؛ Smear layer | ||
|
سایر فایل های مرتبط با مقاله
|
||
| مراجع | ||
|
[1] Mader CL, Baumgartner JC, Peters DD. Scanning electron microscopic investigation of the smeared layer on root canal walls. J Endod. 1984; 10: 477-483. [2] Shahravan A, Haghdoost AA, Adl A, Rahimi H, Shadifar F. Effect of smear layer on sealing ability of canal obturation: a systematic review and meta-analysis. J Endod. 2007; 33: 96-105. [3] Rathakrishnan M, Sukumaran VG, Subbiya A. To Evaluate the Efficacy of an Innovative Irrigant on Smear Layer Removal- SEM Analysis. J Clin Diagn Res. 2016; 10: ZC104-ZC106. [4] Lotfi M, Ghasemi N, Rahimi S, Bahari M, Vosoughhosseini S, Saghiri MA, et al. Effect of smear layer on the push-out bond strength of two endodontic biomaterials to radicular dentin. Iran Endod J. 2014; 9: 41-44. [5] Lotfi M, Rahimi S, Ghasemi N, Vosoughhosseini S, Bahari M, Saghiri MA, et al. Effect of smear layer on the push-out bond strength of two different compositions of white mineral trioxide aggregate. Iran Endod J. 2013; 8: 157-159. [6] Zehnder M. Root canal irrigants. J Endod. 2006; 32: 389-398. [7] Da*Costa*Lima GA, Aguiar CM, Camara AC, Alves LC, Dos*Santos FA, do*Nascimento AE. Comparison of smear layer removal using the Nd:YAG laser, ultrasound, ProTaper Universal system, and CanalBrush methods: an in vitro study. J Endod. 2015; 41: 400-404. [8] Ballal NV, Kandian S, Mala K, Bhat KS, Acharya S. Comparison of the efficacy of maleic acid and ethylenediaminetetraacetic acid in smear layer removal from instrumented human root canal: a scanning electron microscopic study. J Endod. 2009; 35: 1573-6. [9] Walsh LJ. The current status of laser applications in dentistry. Aust Dent J. 2003; 48: 146-155. [10] Udart M, Stock K, Graser R, Hibst R. Inactivation of bacteria by high-power 940nm laser irradiation. Medical Laser Application. 2011; 26: 166-171. [11] Parirokh M, Eghbal MJ, Asgary S, Ghoddusi J, Stowe S, Forghani F, et al. Effect of 808nm diode laser irradiation on root canal walls after smear layer removal: A scanning electron microscope study. Iran Endod J. 2007; 2: 37-42. [12] Hamblin MR, Hasan T. Photodynamic therapy: a new antimicrobial approach to infectious disease? Photochem Photobiol Sci. 2004; 3: 436-450. [13] Fonseca MB, Junior PO, Pallota RC, Filho HF, Denardin OV, Rapoport A, et al. Photodynamic therapy for root canals infected with Enterococcus faecalis. Photomed Laser Surg. 2008; 26: 209-213. [14] George S, Kishen A. Advanced noninvasive light-activated disinfection: assessment of cytotoxicity on fibroblast versus antimicrobial activity against Enterococcus faecalis. J Endod. 2007; 33: 599-602. [15] Asnaashari M, Homayuni H, Paymanpour P. The Antibacterial effect of additional photodynamic therapy in failed endodontically treated teeth: A pilot study. J Lasers Med Sci. 2016; 7: 238-242. [16] Silva LA, Novaes AB*Jr, de*Oliveira RR, Nelson-Filho P, Santamaria M*Jr, Silva RA. Antimicrobial photodynamic therapy for the treatment of teeth with apical periodontitis: a histopathological evaluation. J Endod. 2012; 38: 360-366. [17] Chrepa V, Kotsakis GA, Pagonis TC, Hargreaves KM. The effect of photodynamic therapy in root canal disinfection: a systematic review. J Endod. 2014; 40: 891-898. [18] Torabinejad M, Khademi AA, Babagoli J, Cho Y, Johnson WB, Bozhilov K, et al. A new solution for the removal of the smear layer. J Endod. 2003; 29: 170-175. [19] Pintor AV, Dos*Santos MR, Ferreira DM, Barcelos R, Primo LG, Maia LC. Does Smear Layer Removal Influence Root Canal Therapy Outcome? A Systematic Review. J Clin Pediatr Dent. 2016; 40: 1-7. [20] Lotfi M, Vosoughhosseini S, Saghiri MA, Zand V, Ranjkesh B, Ghasemi N. Effect of MTAD as a final rinse on removal of smear layer in ten-minute preparation time. J Endod. 2012; 38: 1391-1394. [21] Teixeira CS, Felippe MC, Felippe WT. The effect of application time of EDTA and NaOCl on intracanal smear layer removal: an SEM analysis. Int Endod J. 2005; 38: 285-290. [22] Calt S, Serper A. Time-dependent effects of EDTA on dentin structures. J Endod. 2002; 28: 17-19. [23] Matsuoka E, Jayawardena JA, Matsumoto K. Morphological study of the Er,Cr:YSGG laser for root canal preparation in mandibular incisors with curved root canals. Photomed Laser Surg. 2005; 23: 480-484. [24] Zand V, Milani AS, Amini M, Barhaghi MH, Lotfi M, Rikhtegaran S, et al. Antimicrobial efficacy of photodyn-amic therapy and sodium hypochlorite on monoculture biofilms of Enterococcus faecalis at different stages of development. Photomed Laser Surg. 2014; 32: 245-251. [25] Fimple JL, Fontana CR, Foschi F, Ruggiero K, Song X, Pagonis TC, et al. Photodynamic treatment of endodontic polymicrobial infection in vitro. J Endod. 2008; 34: 728-734. [26] Garcez AS, Nunez SC, Hamblin MR, Ribeiro MS. Antimicrobial effects of photodynamic therapy on patients with necrotic pulps and periapical lesion. J Endod. 2008; 34: 138-142. [27] Hauman CH, Love RM. Biocompatibility of dental materials used in contemporary endodontic therapy: a review. Part 1. Intracanal drugs and substances. Int Endod J. 2003; 36: 75-85. [28] Zaccaro*Scelza MF, da*Silva*Pierro VS, Chagas MA, da*Silva LE, Scelza P. Evaluation of inflammatory response of EDTA, EDTA-T, and citric acid in animal model. J Endod. 2010; 36: 515-519. [29] Gulabivala K, Ng YL, Gilbertson M, Eames I. The fluid mechanics of root canal irrigation. Physiol Meas. 2010; 31: R49-R84. | ||
|
آمار تعداد مشاهده مقاله: 3,075 تعداد دریافت فایل اصل مقاله: 2,244 |
||
