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Summary
General practitioners and undergraduates showed longer root filling distances to the radiographic apex compared to endodontists. Endodontists achieved better apical control, especially in multi-rooted teeth, with fewer overfills.
Area of Science:
- Endodontics
- Dental Anatomy
- Radiology
Background:
- Accurate root canal filling length is crucial for endodontic treatment success.
- Variations in filling techniques exist among different dental practitioners.
- Radiographic assessment is standard for evaluating root filling quality.
Purpose of the Study:
- To compare the apical extent of root fillings performed by general practitioners, undergraduate students, and endodontists.
- To classify root filling accuracy based on proximity to the radiographic apex.
Main Methods:
- Morphometric analysis of 3003 root fillings categorized into three classes (A: short, B: flush/slight overfill, C: significant overfill).
- Measurement of apical filling distance to the radiographic apex.
- Statistical analysis of average distances and standard deviations for each practitioner group.
Main Results:
- General practitioners exhibited longer average distances from the apical end of root fillings to the radiographic apex.
- Endodontists demonstrated superior apical control, with fillings closer to the apex, particularly in three-rooted teeth.
- Undergraduates had a higher proportion of overfilled root canals (Class C) compared to endodontists.
Conclusions:
- Practitioner experience and specialization significantly influence root filling accuracy.
- Endodontists achieve more precise apical control, reducing risks associated with underfilling and overfilling.
- Further training may be needed for general practitioners and undergraduates to improve root filling techniques.