Accuracy of ERCLMDs in Teeth With Apical Periodontitis

Study Overview
=================
Brief Summary
-----------------
The aim of this in vivo study is to evaluate the influence of apical periodontitis (AP) on the accuracy of Dentaport ZX, Raypex 5, and i-Root electronic root canal length measurement devices.

Detailed Description
-----------------
Thirty-two single-rooted teeth scheduled for extraction, consisting of 16 teeth with AP and 16 teeth with normal periapex (NP), were selected. Access cavity was prepared and coronal portion of the canal was flared. Electronic working length (EWL) was determined by each ERCLMD according to each manufacturer's instructions. Each tooth was extracted and actual working length (AWL) was determined by inserting a size 15 K-file until the tip could be seen at a position tangential to the major foramen and then 0.5 mm was subtracted from the measurement. The distance from the AWL to the file tip was calculated and compared between the two groups by t-test. The accuracy of each ERCLMD within ±0.5 mm was compared between the groups by Fisher's test. Statistical significance was set at P < .05.

Official Title
-----------------
Influence of Apical Periodontitis on the Accuracy of Three Electronic Root Canal Length Measurement Devices: An In Vivo Study

Conditions
-----------------
Apical Periodontitis

Intervention / Treatment
-----------------
* Device: Electronic Root Canal Length Measurement Device


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: single-rooted teeth clinical pulp necrosis and periapical index scores of 3, 4 or 5 pulp vitality and a periapical index score of 1 Exclusion Criteria: Teeth with metal restorations Teeth with prosthetic crowns Teeth with pulp calcification Teeth with previous endodontic treatment
Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: apical periodontitis (AP)<br>clinical pulp necrosis periapical index scores of 3, 4 or 5 | Device: Electronic Root Canal Length Measurement Device<br>* Electronic Apex Locator is used to find the apical foramen of the root canal. It uses a weak electrical current passed through the canal by endodontic file<br>* Other names: i-Root;|
| Experimental: normal periapex (NP)<br>clinical pulp vitality periapical index score of 1 | Device: Electronic Root Canal Length Measurement Device<br>* Electronic Apex Locator is used to find the apical foramen of the root canal. It uses a weak electrical current passed through the canal by endodontic file<br>* Other names: i-Root;|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Actual working length (AWL) |  | 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Electronic working length (EWL) |  | 6 months | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Apical periodontitis, Dentaport ZX, electronic apex locators, i-Root, Raypex 5, working length