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A Scanning Electron Microscopy Study Comparing 3 Obturation Techniques to Seal Dentin to Root Canal Bioceramic Sealer in 30 Freshly Extracted Mandibular Second Premolars

BACKGROUND: Obturation is a crucial step in dentistry, involving the filling and sealing of a prepared root canal with sealer and core material to prevent bacterial invasion and ensure successful treatment. This study employed scanning electron microscopy to compare the effectiveness of 3 obturation...

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Detalles Bibliográficos
Autores principales: Alghamdi, Nuha S., Alamoudi, Ruaa A., Baba, Suheel Manzoor, Mattoo, Khurshid, Abu Hawi, Rushdiyah H., Ali, Wejdan Nasser, Almadhlami, Nouf Mohammed Hassan, Lahiq, Alya Mohammed Ahmed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Scientific Literature, Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10214875/
https://www.ncbi.nlm.nih.gov/pubmed/37179453
http://dx.doi.org/10.12659/MSM.940599
Descripción
Sumario:BACKGROUND: Obturation is a crucial step in dentistry, involving the filling and sealing of a prepared root canal with sealer and core material to prevent bacterial invasion and ensure successful treatment. This study employed scanning electron microscopy to compare the effectiveness of 3 obturation techniques – single-cone technique (SCT), cold lateral compaction technique (CLCT), and continuous-wave technique (CWT) – in sealing dentin to recently introduced root canal bioceramic sealer in 30 extracted mandibular second premolars. The goal was to determine the optimal technique for minimizing gaps at the sealer-dentin interface. MATERIAL/METHODS: Thirty premolars were divided into 3 groups (n=10 each) based on obturation technique: SCT, CLCT, and CWT. All groups used CeraSeal bioceramic root canal sealer. Root samples were sectioned at apical, middle, and coronal thirds, and high-resolution scanning electron microscopy was performed to measure marginal/internal gaps. Data were analyzed using one-way ANOVA and Tukey range test, with P≤0.05 considered statistically significant. RESULTS: CWT showed fewer voids at all levels, with non-significant differences within a technique. Among the techniques, SCT had the largest mean gaps at all levels [apical (5.43±0.16), middle (5.28±0.20), coronal (5.73±0.24)], while CWT had the smallest mean gaps [apical (3.02±0.19), middle (2.95±0.14), coronal (2.76±0.15)]. The differences in means between techniques were statistically significant (P≤0.05). CONCLUSIONS: CWT obturation with CeraSeal root canal sealer produces fewer marginal gaps at the sealer-dentin interface.