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Comparative Evaluation of Three Access Cavity Preparation Techniques on Root Canal Instrumentation Using Micro-CT: An
Mrunmayee V Khare1, Ranjith Kumar Sivarajan1, Vijay Venkatesh1
1Department of Conservative Dentistry and Endodontics, Sri Ramaswamy Memorial (SRM) Kattankulathur Dental College and Hospital, SRM Institute of Science and Technology (SRMIST), Chennai, IND.
Cureus
|September 9, 2024
Summary
3D-guided access cavity preparation in molars minimizes apical transportation. While traditional methods offer better cleaning, guided preparation balances tooth structure preservation with effective root canal access.
Area of Science:
- Endodontics
- Dental Materials Science
- Minimally Invasive Dentistry
Background:
- Access cavity preparation is vital for root canal treatment.
- Advancements aim for minimally invasive procedures by preserving tooth structure.
- Limited data exists on 3D-guided preparation's impact in molars.
Purpose of the Study:
- To compare three access cavity techniques: 3D-guided, conservative, and traditional.
- To evaluate their effects on apical transportation, untouched canal surfaces, and debris.
Main Methods:
- Thirty mandibular first molars were divided into three groups.
- Techniques included 3D-printed static guided, conservative, and traditional access cavities.
- Micro-CT imaging assessed apical transportation, untouched surfaces, and debris after instrumentation with TruNatomy files.
Main Results:
- 3D-guided preparation showed significantly less apical transportation than conservative and traditional methods.
- Debris accumulation was comparable across all techniques.
- Traditional access cavities resulted in fewer untouched canal surfaces.
Conclusions:
- Traditional access cavity preparation enhances instrumentation efficacy and cleaning but removes more tooth structure.
- 3D-guided preparation effectively balances tooth structure preservation with adequate canal access.
- Guided preparation offers a tailored approach for complex cases prioritizing structural conservation.
