![]() ![]() To assess setting time and flowability, ASTM 266/08 and ADA 57/2007 specifications were used. Methods: The antimicrobial test included Streptococcus mutans, Lactobacillus casei, Enterococcus faecalis and Candida albicans, and the direct contact method was used. Objective: To assess the antimicrobial activity, solubility, setting time, flowability, pH, calcium release and surface characteristic of mineral trioxide aggregate (MTA) associated with different substances: 1% sodium hypochlorite gel, 2% chlorhexidine gel, K-Y gel, distilled water associated with 10% propylene glycol (CCPG), saline solution, and distilled water alone. Regarding the cyclic fatigue test, TF instruments had significantly better performance than the other two instruments tested, particularly in terms of time and NCF. Conclusion: TF instruments were more flexible than RaCe which, in turn, presented lower resistance than ProFile Vortex. Parametric ANOVA, with significance level set at 1%, revealed that RaCe files had significantly lower resistance than ProFile Vortex which, in turn, had lower values than TF, in terms of time and number of cycles (p < 0.01). The rotating-bending test assessed the cyclic fatigue by measuring the time and number of cycles to fracture (NCF). ![]() Results: Parametric ANOVA revealed significant difference between maximum load values in the following sequence: ProFile Vortex > RaCe > TF (p < 0.01). Each group comprised 10 instruments from each manufacturer. Material and Methods: Twenty 25/0.06 RaCe files (FKG Dentaire, La Chaux-de-Fonds, Switzerland), 25 mm in length, manufactured with machined conventional NiTi wires twenty 25/0.06 Twisted File endodontic instruments (TF) (SybronEndo, Orange, CA, USA), 27 mm in length, manufactured by twisting and twenty 25/0.06 ProFile Vortex endodontic instruments (Dentsply Tulsa Dental, Tulsa, OK, USA), 25 mm in length, manufactured with M-Wire alloy were subjected to flexibility and cyclic fatigue tests. Objective: This study compared the mechanical behavior of nickel-titanium instruments with similar geometry, but manufactured by different methods. Conclusion: Cone-beam computed tomography is more effective than periapical radiograph in following-up periapical lesions after endodontic treatment in patients with cleft lip and palate. The CBCT scores were higher than the scores attributed to the radiographs of the same teeth. There was statistically significant difference between the groups studied. In Group II, 7 teeth were assigned score 1 (15.2%) 8 teeth, score 2 (17.4%) 18 teeth, score 3 (39.1%) 10 teeth, score 4 (21.7%) and 3 teeth were assigned score 5 (6.6%). Results: In Group I, 27 teeth were assigned score 1 (58.7%) 10 teeth, score 2 (21.7%) 7 teeth, score 3 (15.2%) 1 tooth, score 4 (2.2%) and 1 tooth was assigned score 5 (2.2%). Data were analyzed by means of Wilcoxon test (p < 0.05). ![]() Intraexaminer reproducibility was determined by Kappa test. Periapical index was used for the evaluations. They returned for follow-up after 6 months to 2 years. These patients were referred to the Endodontics Department of the Hospital for Rehabilitation of Craniofacial Anomalies/USP (HRAC/USP) for endodontic treatment from 2009 to 2011. Methods: Periapical radiographs (Group I) and CBCTs (Group II) were evaluated in 46 single-rooted teeth with periapical lesions in patients with cleft lip and palate. Unlike most apex locators on the market today, Apex ID continuously calibrates for accurate, uninterrupted readings in real-time.Objective: The aim of this study was to compare the effectiveness of cone-beam computed tomography (CBCT) and periapical radiograph as follow-up methods of periapical lesions after endodontic treatment in patients with cleft lip and palate. Whether dry, wet, bleeding, filled with saline, EDTA, NaOCl, chlorhexidine, the Apex ID can still provide accurate, consistent and dependable readings. No need to constantly monitor the visual display, the audible signal will let you know when you’ve reached your preferred zero point.Īpex ID has been designed to work in almost any canal condition. Apex ID is compact and modern with unique functions which allow you to focus on what’s really important providing the best care for your patients.Ĭustomize the “zero point” based on your initial clinical judgement. ![]()
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