Bacteria Elimination in Retreatment Cases Using Different Disinfection Techniques

Not Applicable

Completed

• Conditions: Periapical; Infection; Root Canal Infection
• Interventions: Device: VDW Ultra; Device: ProtaperNext X3 gutta-percha; Device: AMD picasso

• Registration Number: NCT03750162
• Lead Sponsor: Bulent Ecevit University

Brief Summary

Nonsurgical root canal retreatment may become essential when the initial endodontic treatment fails because of the persistent intracanal or extracanal infections.It has been stated that the one of the main cause of posttreatment disease is the persistent or reintroduced microorganism such as enterococcus faecalis. Supplementary disinfection techniques such as irrigation agitation methods can help elimination of bacteria from root canal systems.

The aim of this in vivo study was to compare the effect of passive ultrasonic irrigation, manual dynamic activation and photodynamic therapy in reducing bacterial load in endodontic retreatment cases with periradicular lesion by using polymerase chain reaction (PCR)in a single visit root canal treatment.

Detailed Description

Thirty-six teeth with a single root and a single canal with posttreatment apical periodontitis which needed retreatment were selected for this study. Teeth were randomly divided into 3 groups according to the supplementary disinfection techniques used: Passive ultrasonic irrigation, Manual dynamic activation and Photodynamic therapy. Microbiological samples were taken before any intervention, after conventional chemo-mechanical preparation, and after disinfection techniques with sterile paper points and held in thioglycollate broth, and then were transferred to the microbiological laboratory. The amounts of e.faecalis in these samples was measured by using PCR.

Study Timeline

• Study Start: 2017-02-01
• Primary Completion: 2017-06-15
• Study Completion: 2017-09-05
• Status Verified: 2018-11
• Study First Submitted: 2018-11-18
• Study First Submitted QC: 2018-11-20
• Study First Posted: 2018-11-21
• Last Update Submitted: 2018-11-21
• Last Update Posted: 2018-11-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

Patients with no clinical symptoms Endodontically treated teeth Single rooted teeth

Exclusion Criteria

Teeth with fractured instrument, resorption, perforation, ledge, over fillings Periodontal pockets deeper than 4 mm

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Passive Ultrasonic irrigation	VDW Ultra	Irrigation solution was ultrasonically activated in the canal for 1 minute by using IrriSafe tip coupled to an ultrasonic device with VDW Ultra .
Manuel dynamic activation	ProtaperNext X3 gutta-percha	Irrigation solution was activated with a well-fitting a ProtaperNext X3 gutta-percha point placed to working length was then moved in push - pull motions at a rate of 100 strokes/per minute
Photodynamic Therapy	AMD picasso	Root canal was filled by 0.5 mL of 0.01% methylene blue (MB) solution for 5 minutes, then radiated by the light supply of a diode laser AMD picasso with a wavelength of 810 nm for 40 seconds (0.2 W).

Primary Outcome Measures

Name	Time	Method
Bacteria change	1 year	Bacteria samples were taken at 3 step; before any intervention, after chemomechanical preparation, and after applying supplementary disinfection techniques

Trial Locations

Locations (1)

Bulent Ecevit University Faculty of Dentistry Department of Endodontics; 🇹🇷 Zonguldak, Turkey