ArticleInternational journal of dentistry2026
Evaluating the Influence of Access Cavity Design to Detect Additional Canals of Mandibular Premolars: An In Vitro Study.
Article in International journal of dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Evaluating the Influence of Access Cavity Design to Detect Additional Canals of Mandibular Premolars: An In Vitro Study.International journal of dentistry · 2026Article
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Authors and funding
5 authors.
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Abstract
Objective: The present in vitro study aimed to investigate the impact of three different access cavity types on the identification of the additional canals in mandibular premolars. Methods and Materials: A total of 67 mandibular premolars were obtained, and periapical radiographs and CBCT scans were taken. Then, the access cavities were created in three stages: ultraconservative access cavity (UltraAC), conservative access cavity (CAC), and traditional access cavity (TAC). After completing each stage, the search for the second and third canals was conducted under a surgical microscope, using ultrasonic troughing. The differences between the three access cavity designs in identifying the second and third canals were compared using the chi-squared test. Additionally, the agreement between periapical radiographs, CBCT, and the operator in finding the canals was determined by measuring the kappa coefficient ( Results: 62.68%, 34.32%, and 2.98% of the samples had one, two, and three root canals, respectively. The agreement between PA radiographs and CBCT images in identifying the number of canals was almost perfect (kappa: 0.968; Conclusion: When the access cavity of mandibular premolars is prepared using magnification with a microscope and ultrasonic troughing, the design of the access cavity has no effect on identifying the additional canals in these teeth. Clinical Relevance: Mandibular premolars are reported to have more than one canal, and the effect of different access cavities has not been evaluated in canal detection of these teeth.
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