Performance Evaluation on Rotary Preparation of Root Canal by Beginner Operators

Area of Science:

• Dentistry
• Endodontics
• Dental Education

Background:

• Rotary root canal preparation is standard in modern endodontics.
• Beginner operators require structured training to develop proficiency.
• ProTaper Universal files are commonly used in endodontic training.

Purpose of the Study:

• To evaluate the performance of beginner operators using rotary root canal preparation.
• To assess the effectiveness of different preclinical training stages.
• To identify common preparation errors in novice endodontists.

Main Methods:

• Students trained on extracted teeth and endodontic blocks using ProTaper Universal files.
• Four distinct preclinical training experiences were implemented.
• Radiological and photo-analysis evaluated preparation outcomes and errors.

Main Results:

• Success rates varied across training stages, ranging from 64% to 80%.
• Common failures included ledge formation, apical transportation, and instrument fracture.
• Experience 1 (extracted single-root teeth) showed the highest success rate (80%).

Conclusions:

• Preclinical training is essential for acquiring rotary root canal preparation skills.
• Performance varied depending on the training method and material used.
• Further refinement of training protocols may improve outcomes for novice operators.