Treatment Durations for Endodontic Procedures

NCT07304869 | Completed

• 1 other identifier: 558-558-07
• Study Type: observational
• Target: 102
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of this observational study is to compare the treatment durations of different stages of routine root canal therapy performed on maxillary molar teeth using direct vision, magnification loupes, and a dental operating microscope. The primary question the study seeks to answer is whether there is a significant difference in the duration of endodontic procedures performed under different magnification techniques. Patients indicated for root canal treatment in their maxillary first molar teeth will receive standard root canal therapy in accordance with routine clinical protocols. The duration of each procedural step will be recorded and subsequently compared among the three magnification methods.

Conditions

Root Canal Therapy

Keywords

root canal treatment; Dental operating microscope; dental loupes; chair time; second mesiobuccal canal

Outcome Measures

Primary Outcomes (1)

• Duration of each procedural step in endodontic treatment

  The duration (in seconds) of each of seven key procedural stages performed during routine root canal treatment on maxillary first molar teeth: 1. Access cavity preparation 2. Working length determination 3. Canal shaping 4. MB2 canal detection and shaping 5. Final irrigation and passive ultrasonic activation 6. Root canal filling 7. Coronal restoration Each stage was timed separately for three groups (direct vision, dental loupes, and dental operating microscope) to compare the effect of different magnification techniques on working efficiency.

  From the start of access cavity preparation to the completion of coronal restoration during a single treatment visit (approximately 35-120 minutes).

Secondary Outcomes (1)

• Presence of MB2 canal according to magnification technique

  Baseline (at the time of canal orifice identification)

Study Arms (3)

Patients treated under direct vision

Root canal treatment of maxillary first molar teeth performed without magnification, using direct visual inspection only.

Patients treated using dental loupes

Root canal treatment of maxillary first molar teeth performed using 5× magnification dental loupes.

Patients treated using a dental operating microscope

Root canal treatment of maxillary first molar teeth performed using a dental operating microscope at 8×-16× magnification.

Eligibility Criteria

• Age: 12 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients admitted to the Department of Endodontics, Faculty of Dentistry, Uşak University, who required root canal treatment of maxillary first molar teeth

You may qualify if:

• Patients requiring root canal treatment of the maxillary first molar tooth

You may not qualify if:

• Previous root canal treatment on the maxillary first molar tooth
• Presence of fracture or crack in the maxillary first molar tooth
• Lack of indication for completing treatment in a single session
• Patient refusal to continue treatment during the procedure
• Indication for extraction due to complications during treatment
• Teeth indicated for fiber post restoration due to excessive material loss

Sponsors & Collaborators

• Uşak University: lead

Study Sites (1)

Uşak University Faculty of Dentistry, Department of Endodontics

Uşak, 64000, Turkey (Türkiye)

Location

Related Publications (2)

• Buhrley LJ, Barrows MJ, BeGole EA, Wenckus CS. Effect of magnification on locating the MB2 canal in maxillary molars. J Endod. 2002 Apr;28(4):324-7. doi: 10.1097/00004770-200204000-00016.

  PMID: 12043874 BACKGROUND

• Wong AW, Zhu X, Zhang S, Li SK, Zhang C, Chu CH. Treatment time for non-surgical endodontic therapy with or without a magnifying loupe. BMC Oral Health. 2015 Mar 20;15:40. doi: 10.1186/s12903-015-0025-7.

  PMID: 25887978 BACKGROUND

Study Officials

• Oğuz Tavşan, Assistant Professor

  Uşak University Faculty of Dentistry, Department of Endodontics

  PRINCIPAL INVESTIGATOR

• Tuğçe N Çağlar, Research Assistant

  Uşak University Faculty of Dentistry, Department of Endodontics

  STUDY DIRECTOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Target Duration: 1 Month
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant professor

Study Record Dates

• First Submitted: November 26, 2025
• First Posted: December 26, 2025
• Study Start: February 1, 2025
• Primary Completion: October 31, 2025
• Study Completion: October 31, 2025
• Last Updated: December 26, 2025

Record last verified: 2025-11

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)