Effect of Contracted Access Cavity Preparation on Transportation in Curved Root Canals in Molars. An In-Vitro Study | ||||
| Journal of Fundamental and Clinical Research | ||||
| Article 8, Volume 5, Issue 1, June 2025, Page 94-106 PDF (585.19 K) | ||||
| Document Type: Original research articles | ||||
| DOI: 10.21608/jfcr.2025.317677.1092 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Marina Hesham Fawzy Zakhary  
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| Department of Endodontics, Faculty of Oral and Dental Medicine | ||||
| Abstract | ||||
| Background: Conservation of the tooth structure is one of the main pillars for tooth longevity. Achieving both; conservation and proper visualization and instrumentation is challenging in Endodontics. Aim of the study: Study the effect of contracted access cavity preparation on transportation in curved roots in mandibular molars. Materials and methods: Mandibular human molar teeth were collected. Cone Beam Computed Topography (CBCT) was taken preoperatively and postoperatively and was superimposed. Teeth were divided into four groups. Group A (10˚-21˚) subdivided into A1 undergoes traditional access cavity (TAC), and A2 undergoes contracted access cavity (CAC). While group B (≥21˚) is sub-divided into B1 which undergoes (TAC), and B2 undergoes (CAC). Then dentin thickness was measured at 5mm from the apex on superimposed radiographs. Gambill’s equations were used to obtain results for transportation. Results: Contracted access cavity (0.09±0.01) had a significantly higher value than traditional access cavity (0.05±0.01) (p < 0.001). Conclusion: Contracted access cavity increases the occurrence of transportation in curved roots. | ||||
| Keywords | ||||
| Contracted access cavity; conservative endodontics; curved canals; transportation; superimposed CBCT | ||||
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