Publication: Kök kanal tedavisinde rinsendonun ve farklı lazer türlerinin smear tabakasına etkilerinin taramalı elektron mikroskobu ile değerlendirilmesi
Abstract
1. ÖZET Amaç: Bu çalışmada kök kanallarından smear tabakasının uzaklaştırılmasında RinsEndo ve farklı lazer türlerinin etkinliklerinin karşılaştırması amaçlanmıştır. Gereç ve Yöntem: Araştırmamızda 240 adet, tek köklü ve tek kanallı insan dişleri 2 ayrı döner alet sistemi (G1: Mtwo, G2: IRace) ile şekillendirildikten sonra her ana grup rastgele 6 alt gruba ayrıldı: a (kontrol): %5.25 NaOCl, b: %17 EDTA + %5.25 NaOCl, c: RinsEndo, d: Er:YAG lazer, e: Er,Cr:YSGG lazer, f: photon- initiated photoacoustic streaming (PIPS) sistemi. Kökler uzunlamasına ikiye bölünerek, apikal, orta ve koronal bölgeler taramalı elektron mikroskobunda smear tabakası, debris ve erozyon parametreleri yönünden incelendi ve skorlandı. Bulgular: G2’ nin smear tabakası ve debris skorlarının G1’ e göre yüksek olduğu belirlendi (p<0.01). Smear tabakası ve debrisin uzaklaştırılması açısından; lazer gruplarının özellikle Er,Cr:YSGG lazerin en etkili olduğu, PIPS lazer sisteminin diğer lazer türlerine göre G2’ de daha az etkili olduğu, RinsEndo’ nun lazer gruplarına göre etkisiz olduğu ve lazer ve RinsEndo gruplarında erozyon gözlenmediği bulundu. Tüm gruplarda apikal bölgelerdeki smear tabakası ve debris skorlarının diğer bölgelere göre yüksek olduğu (p<0.01) belirlendi. Sonuç: Smear tabakasının uzaklaştırılmasında lazer aktivasyon sistemlerinin RinsEndo’ ya göre daha etkili olduğu, PIPS lazer sisteminin ise diğer lazer sistemlerine alternatif olarak kullanılabileceği bulunmuştur. Anahtar Sözcükler: Smear tabakası, RinsEndo, Er:YAG lazer, Er,Cr:YSGG lazer, photon-initiated photoacoustic streaming. 2.
Objective: The main purpose of this study is to compare the efficacy of RinsEndo and various laser techniques in removal of smear layer from the root canals. Materials and Methods: Two hundred forty extracted human teeth with straight single roots were randomized into 2 main groups and were shaped by 2 rotary instruments (G1: Mtwo, G2: IRace). Each of the main group was randomly divited into 6 subgroups: a (control): %5.25 NaOCl, b: %17 EDTA + NaOCl, c: RinsEndo, d: Er:YAG laser, e: Er,Cr:YSGG laser, f: photon-initiated photoacoustic streaming (PIPS). The roots were split longitudinally. The canal walls were evaluated under the SEM and scored in apical, middle and coronal regions for the amount of smear layer, debris and erosion. Results: G2 was found higher smear layer and debris scores than G1 (p<0.01). In terms of smear layer and debris removal; it was found that, laser groups especially Er,Cr:YSGG laser is the most effective, the PIPS system was less effective in G2, RinsEndo groups were ineffective than the laser groups and erosion was not observed in the laser and RinsEndo groups. The smear layer and debris scores in the apical regions were higher than the other ones in all groups (p<0.01). Conclusions: In terms of smear layer removal; it was found that, laser activated systems were more effective than the RinsEndo system and PIPS laser system can be used alternatively to other laser systems. Smear layer, RinsEndo, Er:YAG laser, Er,Cr:YSGG laser, photon-initiated photoacoustic streaming.
Objective: The main purpose of this study is to compare the efficacy of RinsEndo and various laser techniques in removal of smear layer from the root canals. Materials and Methods: Two hundred forty extracted human teeth with straight single roots were randomized into 2 main groups and were shaped by 2 rotary instruments (G1: Mtwo, G2: IRace). Each of the main group was randomly divited into 6 subgroups: a (control): %5.25 NaOCl, b: %17 EDTA + NaOCl, c: RinsEndo, d: Er:YAG laser, e: Er,Cr:YSGG laser, f: photon-initiated photoacoustic streaming (PIPS). The roots were split longitudinally. The canal walls were evaluated under the SEM and scored in apical, middle and coronal regions for the amount of smear layer, debris and erosion. Results: G2 was found higher smear layer and debris scores than G1 (p<0.01). In terms of smear layer and debris removal; it was found that, laser groups especially Er,Cr:YSGG laser is the most effective, the PIPS system was less effective in G2, RinsEndo groups were ineffective than the laser groups and erosion was not observed in the laser and RinsEndo groups. The smear layer and debris scores in the apical regions were higher than the other ones in all groups (p<0.01). Conclusions: In terms of smear layer removal; it was found that, laser activated systems were more effective than the RinsEndo system and PIPS laser system can be used alternatively to other laser systems. Smear layer, RinsEndo, Er:YAG laser, Er,Cr:YSGG laser, photon-initiated photoacoustic streaming.