Minimally Invasive Management During Endodontic Retreatment

Study Overview
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Brief Summary
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The study compares the prognosis of cases treated with selective root retreatment to the cases treated with traditional retreatment approach

Detailed Description
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Post-treatment apical periodontitis is an inflammatory disorder of peri-radicular tissues caused by either persistent or secondary intra-radicular infection .Conventionally, nonsurgical retreatment has been believed to be an ''all or none'' treatment approach in which the endodontist has to remove all restorations from the tooth and to remove the obturation materials from all the canals in order to perform thorough disinfection of the entire root canal system. Nowadays, All operations in the medical field are aimed basically at the conservation of the human body. The alternative concept allows the endodontist to formulate clinical treatment decisions with respect to the presence of periapical pathosis related to individual roots rather than the tooth as a whole. The literature is lacking the clinical outcome studies dealing with the prognosis of cases treated with selective root retreatment concept so the aim of this study was to compare the prognosis of such cases in comparison to the traditional retreatment approach.

Official Title
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Minimally Invasive Management of Separated Instruments in Vertucci Type ii Canals: A Radomized Clinical Trial

Conditions
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Teeth, Endodontically-Treated

Intervention / Treatment
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* Procedure: Endodontic retreatment


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: endodontically treated teeth multirooted teeth radiographic evidence of periradicular infection related to one root Exclusion Criteria: medically compromised patients fused roots root resorption root fracture

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

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


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: selective root canal retreatment<br>retreatment process is performed to the affected root only | Procedure: Endodontic retreatment<br>* Root canal retreatment in cases with secondary root canal infection<br>|
| Active Comparator: traditional root canal retreatment<br>retreatment process is performed to all roots | Procedure: Endodontic retreatment<br>* Root canal retreatment in cases with secondary root canal infection<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| volumetric change of periapical lesion size in CBCT | assessment of healing of periradicular infection in terms of change of the size of periapical lesion in CBCT analysis | one year |