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Marginal gaps and internal voids after root-end filling using three calcium silicate-based materials: A Micro-CT analysis
Jardine, Alexander Pompermayer; Rosa, Ketsia Fernanda Váz; Matoso, Felipe Barros; Quintana, Ramiro Martins; Grazziotin-Soares, Renata; Kopper, Patricia Maria Poli.
  • Jardine, Alexander Pompermayer; Federal University of Rio Grande do Sul. School of Dentistry/Endodontics. Porto Alegre. BR
  • Rosa, Ketsia Fernanda Váz; Federal University of Rio Grande do Sul. School of Dentistry. Porto Alegre. BR
  • Matoso, Felipe Barros; Federal University of Rio Grande do Sul. School of Dentistry/Endodontics. Porto Alegre. BR
  • Quintana, Ramiro Martins; Federal University of Rio Grande do Sul. School of Dentistry/Endodontics. Porto Alegre. BR
  • Grazziotin-Soares, Renata; University of Saskatchewan. College of Dentistry. SK. CA
  • Kopper, Patricia Maria Poli; Federal University of Rio Grande do Sul. School of Dentistry/Endodontics. Porto Alegre. BR
Braz. dent. j ; 32(4): 1-7, July-Aug. 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1345516
ABSTRACT
Abstract This study evaluated the 3D quality of root-end filling, assessing the presence (volume and percentage) of marginal gaps and internal voids formed after retro-filling with three calcium silicate-based materials MTA Angelus (Angelus Soluçoes Odontologicas, Londrina, PR, Brazil), Biodentine (Septodont Ltd., Saint Maur-des-Faussés, France) and Neo MTA Plus (Avalon Biomed Inc., Bradenton, Florida, US). Thirty human, extracted, single rooted teeth were used. Orthograde root canal treatment, root resection (3mm shorter than the apex) and retrograde cavity preparation with ultrasonic tips were performed. Teeth were divided into 3 groups (n =10 each) following a stratified randomization according to the initial volume of the root-end cavity. After retrofilling, samples were stored for 7 days. Then, two rounds of micro-CT scans were performed soon after root-end preparation (with the cavity still empty) and 7 days after root-end filling. Marginal gaps, internal voids volume (mm3 and %), as well as, the overall defects (sum of gaps and voids) were evaluated. Statistics compared the three groups in relation to those defects. There was not statistical difference between groups regarding the marginal gaps (P≥ 0.05), the internal voids (P≥ 0.05), and the overall defects (P≥ 0.05). Median (mm3) and % of overall air-entrapment defects (gaps and/or voids) was 0.004mm3 and 1.749% for MTA Angelus, 0.018mm3 and 6.660% for Biodentine, and 0.012mm3 and 4.079% for Neo MTA Plus. All materials had gaps and/or voids. No differences were found between MTA Angelus, Biodentine and Neo MTA Plus.
RESUMO
Resumo Este estudo avaliou a qualidade 3D de retro-obturações, avaliando a presença (volume e percentagem) de "gaps" marginais e "voids" internos formados a partir da retro-obturação com três materiais à base de silicato de cálcio MTA Angelus (Angelus Soluções Odontológicas, Londrina, PR, Brasil), Biodentine (Septodont Ltd., Saint Maur-des-Faussés, França) and Neo MTA Plus (Avalon Biomed Inc., Bradenton, Flórida, US). Trinta dentes humanos unirradiculares extraídos foram usados. Após tratamento de canal ortrógrado, resecção radicular (3 mm apicais), o prepare da cavidade retrógrada com pontas ultrassônicas foi realizado. Os dentes foram divididos em três grupos (n= 10 cada) seguindo uma randomização estratificada, de acordo com o volume inicial da cavidade retrógrada. Depois da retro-obturação as amostras foram armazenadas por 7 dias. Duas rodadas de escaneamento de micro-CT foram realizadas logo após o preparo retrógrado (com a cavidade ainda vazia) e 7 dias após a retro-obturação. O volume de "gaps" marginais e de "voids" internos (mm3 e %), bem como, os defeitos totais (soma de "gaps" e "voids") foram avaliados. Não houve diferença estatística entre os grupos em relação aos "gaps" marginais (P≥ 0,05), "voids" internos (P≥ 0,05), e aos defeitos totais (P≥ 0,05). A mediana (mm3) e porcentagem dos defeitos totais de aprisionamento de ar foi 0,004mm3 e 1,749% para o MTA Angelus, 0,018mm3 e 6,660% para o Biodentine, e 0,012mm3 e 4,079% para o Neo MTA Plus. Todos os materiais tiveram defeitos ("gaps"e/ou "voids"). Não houve diferença entre MTA Angelus, Biodentine e Neo MTA Plus.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials Type of study: Controlled clinical trial Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: Brazil / Canada Institution/Affiliation country: Federal University of Rio Grande do Sul/BR / University of Saskatchewan/CA

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials Type of study: Controlled clinical trial Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: Brazil / Canada Institution/Affiliation country: Federal University of Rio Grande do Sul/BR / University of Saskatchewan/CA