| Autor: |
Drukteinis, Saulius, Balčiūnienė, Irena |
| Jazyk: |
angličtina |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
Acta medica Lituanica, ISSN 1392-0138, 2006, Vol. 13, No. 4, p. 249-257 |
| Popis: |
Darbo tikslas. Palyginti in vitro šaknies kanalo sienelės užterštumą panaudojus dvi mašininių endodontinių instrumentų sistemas (AET ir ProTaper). Metodika. Tyrime naudota 30 vienašaknių išrautų žmogaus viršutinio žandikaulio centrinių kandžių, viršutinio ir apatinio žandikaulių ilčių bei kaplių. Dantys atsitiktine tvarka suskirstyti į dvi grupes. Aim. To compare in vitro the cleanliness of root canal walls following the use of two automated instrumentation techniques. Methodology. Thirty extracted human maxillary central incisors, maxillary and mandibular canines and premolars with single root canals were examined in this study. The teeth were divided into two groups. In group 1 (20 teeth), automated canal preparation was performed using Anatomic Endodontic Technology (AET). In group 2 (10 teeth), root canals were prepared with ProTaper nickel titanium (NiTi) rotary instruments. Irrigation was performed using alternately 3.00% NaOCl and 18% EDTA, followed by rinsing with saline. The roots were split longitudinally into halves and the canals examined using a scanning electron microscope. The presence of a debris and smear layer was recorded at the coronal, middle and apical thirds of root canals using a fourstep scoring scale. Mean scores for debris and smear layers were calculated and statistically analysed for significance (p < 0.05) between and within the groups, using the Mann–Whitney–Wilcoxon and Friedman nonparametric tests. Results. Under the conditions of this study, the removal of superficial debris and smear layers was generally good with both canal preparation techniques. However, both techniques resulted in variable presence of residual superficial debris and smear layers. Statistical analysis showed that there was no significant difference between the experimental groups in all thirds of root canals for a... [to full text] |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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