Effectiveness of complementary irrigation routines in debriding pulp tissue from root canals instrumented with a single reciprocating file
| Autor: | P. Varela, M. Mercadé, Erick Miranda Souza, G. de Deus, Fernando Duran-Sindreu |
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| Rok vydání: | 2018 |
| Předmět: |
Irrigation
Root canal 0206 medical engineering Group ii Irrigation technique Dentistry 02 engineering and technology 03 medical and health sciences Reciprocating motion 0302 clinical medicine stomatognathic system Medicine Bicuspid Therapeutic Irrigation General Dentistry Dental Pulp Ultrasonic irrigation Root Canal Irrigants business.industry 030206 dentistry 020601 biomedical engineering medicine.anatomical_structure Pulp (tooth) Dental Pulp Cavity business Root Canal Preparation |
| Zdroj: | International Endodontic Journal. 52:475-483 |
| ISSN: | 0143-2885 |
| Popis: | AIM To compare histologically the debridement efficacy of four irrigation techniques in root canals instrumented with a reciprocating single file. METHODOLOGY From recently extracted premolars with vital pulp, 68 were selected and classified as having round canals (mesiodistal diameter similar to buccolingual) or oval-shaped canals (mesiodistal diameter 2.5 times larger than buccolingual) (n = 32, each) by means of bidirectional radiographs. Four additional uninstrumented samples served as histological controls. The root canals of the specimens were accessed and then instrumented with Reciproc R25® and further assigned to one of four experimental groups according to the complementary irrigation technique: Group I, conventional syringe; Group II, passive ultrasonic irrigation; Group III, manual dynamic activation (MDA); and Group IV, EndoActivator® . Roots were then demineralized and the apical 3 mm was multi-sliced and processed for histologic examination. The percentage of residual pulp tissue was calculated at each cross section. Kruskal-Wallis and Mann-Whitney tests were used to evaluate the effects of irrigation technique, root canal shape and level of cross section on the percentage of residual pulp tissue (P 0.05). Round canals retained significantly less percentage of residual pulp tissue compared to oval-shaped canals (P = 0.001). At 3 mm, there was less pulp tissue compared to levels 2 and 1 mm (P |
| Databáze: | OpenAIRE |
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