# Longitudinal Endodontic Study of Apical Preparation Size

> **NCT00223379** · NA · COMPLETED · sponsor: **The University of Texas Health Science Center at San Antonio** · enrollment: 36 (actual)

## Conditions studied

- Chronic Apical Periodontitis of Pulpal Origin

## Interventions

- **PROCEDURE:** Endodontic procedure with varied apical preparation size

## Key facts

- **NCT ID:** NCT00223379
- **Lead sponsor:** The University of Texas Health Science Center at San Antonio
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2002-12
- **Primary completion:** 2007-12
- **Final completion:** 2007-12
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2012-03-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00223379

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00223379, "Longitudinal Endodontic Study of Apical Preparation Size". Retrieved via AI Analytics 2026-07-20 from https://api.ai-analytics.org/clinical/NCT00223379. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*