O objetivo deste estudo foi avaliar a radiopacidade e o escoamento dos cimentos endodonticos: AH Plus, Endo CPM Sealer, Fillapex, Sealapex, Epiphany e Epiphany SE. Para o teste de radiopacidade foram confeccionados corpos de prova com 10mm de largura e 1mm de espessura, radiografados juntamente com uma escala de aluminio sobre filme oclusal. As imagens foram digitalizadas e foi determinada a equivalencia em milimetros de aluminio. Para avaliacao do escoamento, foram colocados 0,05 �} 0,005 ml do cimento em placa de vidro, e sobre este uma massa de 120g. Foi realizada mensuracao do maior e menor diametro de cada especime e as amostras foram fotografadas e digitalizadas para mensuracao da area do cimento em mm2 pelo programa UTHSCSA Image Tool for Windows Versao 3.00. Os dados foram analisados por ANOVA e teste Tukey, com 5% de significancia. AH Plus e Epiphany SE apresentaram maior radiopacidade (12,5 mm Al e 12,0 mm Al, respectivamente) (p>0,05), seguidos pelo Epiphany (9,6 mm Al) e Fillapex (8,9 mm Al). Endo CPM (5,46 mm Al) e Sealapex (5,51 mm Al) apresentaram menor radiopacidade. O MTA Fillapex apresentou valor de escoamento superior aos demais materiais (33,11 mm e 844,9 mm²). Os cimentos AH Plus, Epiphany e Epiphany SE apresentaram valores similares e intermediarios (p>0,05), seguidos pelos cimentos Endo CPM Sealer (342,8 mm² e 21,05 mm) e Sealapex (352,5 mm2 e 19,98 mm) que apresentaram menor escoamento (p>0,05). Todos os cimentos avaliados estao em acordo com as recomendacoes da norma ISO e ANSI/ADA.

The present study evaluated the radiopacity and flow of different endodontic sealers: AH Plus, Endo CPM, MTA Fillapex, Sealapex, Epiphany, and Epiphany SE. For the radiopacity test, six specimens measuring 10mm in diameter and 1mm in thickness were fabricated from each material. They were radiographed on an occlusal film alongside an aluminum step wedge. Radiographs were digitized to determine the radiopacity equivalence in millimeters of aluminum. To evaluate the flow, a 120 g load was placed on top of a glass slab containing 0.05 �} 0.005ml of sealer. The diameters of each material were measured (mm) with a caliper and samples were photographed. Digitized images were analyzed using the UTHSCSA Image Tool for Windows software, to determine the sealer area (mm²). Data were submitted to ANOVA and Tukey's test at 5% significance. AH Plus and Epiphany SE presented the greatest radiopacity (12.5 mm Al and 12.0 mm Al, respectively) (p>0.05), followed by Epiphany (9.6 mm Al) and Fillapex (8.9 mm Al). Endo CPM (5.46 mm Al) and Sealapex (5.51 mm Al) presented lower radiopacity. MTA Fillapex presented significantly higher values of flow than other sealers (33.11 mm and 844.9 mm2). AH Plus, Epiphany, and Epiphany SE had similar values. Endo CPM (21.05 mm and 342.8 mm²) and Sealapex (19.98 mm and 352.5 mm²) presented the lowest flow values (p>0.05). All sealers presented radiopacity and flow values according to ISO and ANSI/ADA recommendations.

OBJETIVO: O objetivo do estudo foi avaliar a efetividade da guta-percha e Resilon no preenchimento de canais laterais nos terços cervical, médio e apical radicular quando utilizada a técnica termomecânica. MATERIAL E MÉTODO: Canais radiculares de dentes artificiais foram preparados utilizando um método padrão. Canais laterais foram confeccionados utilizando broca com 0,3 mm de diâmetro nos três terços radiculares. Os canais radiculares foram obturados pela técnica híbrida de Tagger utilizando-se o compactador de McSpadden. Foi avaliado o preenchimento dos canais laterais pelos seguintes materiais: cones de guta-percha Dentsply, guta-percha Endopoint e Resilon. A avaliação foi realizada por meio da análise de radiografias digitalizadas usando o programa Image Tool. A porcentagem da área preenchida pela área total de cada canal lateral foi determinada. Os dados foram submetidos à análise de variância (ANOVA) e teste de Tukey com nível de significância de 5%. RESULTADO: O Resilon mostrou melhor efetividade como material de preenchimento. Na comparação entre os terços, o Resilon foi mais efetivo no terço apical que no cervical (p < 0,05). CONCLUSÃO: O Resilon foi o material mais efetivo para o preenchimento dos canais laterais quando utilizada a técnica termoplástica.

OBJECTIVE: The aim of this study was to evaluate the effectiveness of gutta-percha and Resilon in filling lateral root canals in cervical, middle, and apical third using a thermomechanical technique. MATERIAL AND METHOD: Root canals of artificial teeth were prepared using a standard preparation. The lateral canals were fabricated using a 0.3-mm-diameter bur at 3 parts of each root. By using Tagger's hybrid technique with a McSpadden thermomechanical compactor, the root canal was filled using the following filling materials: Dentsply gutta-percha, Endopoint gutta-percha, and Resilon cones. The root canal fillings were evaluated using digitized radiographs and the Image Tool software. The percentage of filled area of each lateral canal was determined. The data were subjected to analysis of variance (ANOVA) and Tukey tests at a 5% significance level. RESULT: Resilon showed better effectiveness as a filling material. When the three thirds were compared, Resilon was more effective in the apical third than in the cervical third (p < 0.05). CONCLUSION: Resilon is an effective filling material for lateral root canals using a thermomechanical technique.

The aim of this study was to evaluate the effectiveness of gutta-percha and Resilon in filling lateral root canals by using the Obtura II system. Root canals of artificial teeth were prepared using a standard protocol, and lateral canals were made in three thirds of the root canal. The root canals were filled with either Obtura gutta-percha (OB), Endo-points flow gutta-percha (ED), or Resilon (RE) by using the Obtura II system. The fillings were evaluated using digitized radiographs and analyzed by using Image Tool software. Outlines of the total areas of the lateral canals and the filled areas were used to determine the percentage of filling in each lateral canal. Data were analyzed with the Kruskal-Wallis and Dunn tests at a 5% significance level. RE and ED showed better results than OB did in the three thirds of the root canals. When the root canal thirds were compared, OB and RE were more effective in the cervical third than in the apical third (p < 0.05). In conclusion, Resilon and EndoFlow gutta-percha were effective in filling lateral canals by using the Obtura II system.

Materiais recentemente disponiveis para obturacao retrograda devem ter suas propriedades seladoras avaliadas. O objetivo deste estudo foi avaliar a capacidade seladora do Endo CPM sealer, um cimento endodontico a base de MTA. Dentes unirradiculares humanos extraidos foram tratados endodonticamente. Apos seccao apical, foram preparadas cavidades retrogradas. Os dentes foram divididos em cinco grupos experimentais (n=12), nos quais foram utilizados os seguintes materiais: Sealer 26 (S26), Mineral Trioxide Aggregate branco (MTA), Endo CPM Sealer (CPM1), Endo CPM Sealer na consistencia mais espessa (CPM 2), cimento de oxido de zinco e eugenol (ZOE) e dois grupos controle (n=3). Apos obturacao retrograda, os dentes foram imersos em rodamina B a 0,2% por 48 horas em uma camara a vacuo. Os dados da infltracao marginal foram submetidos aos testes ANOVA e Tukey com nivel de significancia de 5%. O S26 apresentou maior capacidade seladora (p<0,05) que ZOE, MTA, CPM1 e CPM2, os quais tiveram resultados semelhantes (p>0,05). Conclui-se que o Sealer 26 apresenta maior capacidade seladora. Endo CPM Sealer promove selamento similar ao MTA, podendo ser utilizado como material retrobturador.

Newly available materials for retrograde obturation should have their sealing properties evaluated. The goal of this study was to evaluate the sealing ability of Endo CPM sealer, an MTA-based endodontic cement. Single-rooted extracted human teeth were endodontically treated. After apical sectioning, retrograde cavities were prepared. Teeth were divided into five experimental groups (n=12), in which the following materials were used: Sealer 26 (S26), white Mineral Trioxide Aggregate (MTA), Endo CPM Sealer (CPM1), Endo CPM Sealer in thicker consistency (CPM 2), and zinc oxide and eugenol cement (ZOE), and two control groups (n=3). After retrograde obturation, the teeth were immersed in 0.2% rhodamine B dye for 48 hours in a vacuum chamber. Marginal leakage data were subjected to ANOVA and Tukey tests at 5% significance level. S26 presented greater sealing ability (p<0.05) than ZOE, MTA, CPM1, and CPM2, all of which had similar results (p>0.05). We concluded that Sealer 26 has the greatest sealing ability. Endo CPM Sealer, with sealing ability similar to MTA, could be used as a retrograde obturation material.