Effect of 980nm Diode Laser on Postoperative Pain and Root Canal Disinfection in Endodontic Retreatment Cases

Cairo University (CU)

Status: Unknown

Conditions: Postoperative Pain

Treatments: Radiation: 980 nm diode laser; Other: placebo

Study type: Interventional

Funder types: Other

Identifiers

NCT03711357

Eman Elezaby

Details and patient eligibility

About

A randomized clinical trial that evaluates the effect of using 980nm diode laser intracanal irradiation on postoperative pain and root canal disinfection in endodontic retreatment cases with chronic periapical lesions

Full description

The endodontic retreatment procedures will be carried out for the participants, then 980nm Diode laser will be used to disinfect root canals. The researcher will then take microbiological samples of the root canals, to determine count and type of microorganisms in root canals. The subject will be asked to determine his level of pain at 7 days after endodontic retreatment procedures in a visual analogue scale (VAS), and to determine number of analgesic tablets needed to relieve his pain in the given charts. The subject will then return to the clinic 7 days later to bring back his charts. The researcher then will take another microbiological sample of the root canals, and complete the endodontic retreatment procedures.

Enrollment: 60 estimated patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Endodontic retreatment cases of single rooted teeth with chronic periapical lesions; with periapical radiolucency of less than 1 cm diameter will be selected.
2. Teeth with straight root canals.
3. Subjects aged between 18-50 years of age.
4. No contributory medical history.
5. No previous administration of analgesics and / or antibiotics within the previous 2 weeks.

Exclusion criteria

1. Retreatment cases with complications such as separated instruments, perforations, ledges, resorption, transportation, calcifications, immature apices and over fillings.
2. Teeth with curved roots.
3. Swelling or sinus tract.
4. Mutilated teeth that interfere with proper isolation and seal between visits.
5. Subjects with generalized periodontitis, or if the tooth has probing depth of more than 3 mm.
6. Subjects with uncontrolled diabetes or debilitating diseases.
7. Pregnant or nursing females.
8. Systemic disorders that necessitate antibiotic prophylaxis or prevent the use of Ibuprofen.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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60 participants in 2 patient groups, including a placebo group

laser

Active Comparator group

Description:

980 nm diode laser (maximum output of 3 watts and coupled with a fiber optic tip of 200 µm diameter) will be used for four irradiations, of 5 seconds each, after chemo-mechanical preparation procedures.

Treatment:

Radiation: 980 nm diode laser

Placebo

Placebo Comparator group

Description:

After chemo-mechanical preparation procedures, the diode laser fiber optic tip will be inserted inside the root canals but not activated.

Treatment:

Other: placebo