Evaluating Postoperative Pain and Antibacterial Effect of Ultrasonic and 980 nm Diode Laser Combination
A Randomized Controlled Trial Evaluating Postoperative Pain and Antibacterial Effect of Ultrasonic and 980 nm Diode Laser Combination
Al-Azhar University
120 participants
Aug 3, 2025
INTERVENTIONAL
Conditions
Summary
This study is a parallel randomized controlled clinical trial that was designed and interpreted according to Preferred Reporting Items for Randomized Trial in Endodontics (PRIRATE) 2020 guidelines. Patients of age range between 20 and 35 years old from the outpatient clinic of Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University will participate in this study. These patients have single rooted teeth with necrotic pulp and periapical radiolucency. Patients will be informed about all the study's procedures. They will be included in the study after fulfilling the inclusion criteria and sign an informed consent.Inclusion Criteria: * Patients have mature teeth with closed apex. * Single rooted teeth with root canal form type I. * Asymptomatic. * Have Periapical radiolucency with diameter up to 5 mm. * Restorable teeth. Exclusion Criteria: * Patients with symptomatic apical periodontitis. * Systemic disease. * Physical or mental disability. * Root fracture and tooth mobility.
Eligibility
Inclusion Criteria5
- Patients have mature teeth with closed apex.
- Single-rooted teeth with root canal form type I.
- Asymptomatic.
- Have periapical radiolucency with a diameter of up to 5 mm.
- Restorable teeth.
Exclusion Criteria4
- Patients with symptomatic apical periodontitis.
- Systemic disease.
- Physical or mental disability.
- Root fracture and tooth mobility.
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Interventions
980 nm diode laser with optical fiber 200 µm (Lite medics, Italy) and power setting 1.2 watt in pulsed mode. The irradiation protocol will be a 5 sec. irradiation followed by a 10 sec. rest, which constituted one lasing cycle. The lasing cycle will be performed four times for each tooth.
After each file use, the root canal will be irrigated with 5ml of freshly prepared 2.5% sodium hypochlorite (NaOCl) solution (Alex. Deteregents and Chemical Co., Egypt) for 1 minute using a 31-gauge Navi-Tip flexible irrigating needle (Navi-Tip, Ultradent product, South Jourdan, UT). 5 ml of 17% EDTA (Colgate Oral Care Company, Waverly, Australia) for 1 min will be used for smear layer removal. 5 ml of saline solutio
980 nm diode laser with optical fiber 200 µm (Lite medics, Italy) and power setting 1.2 watt in pulsed mode. The irradiation protocol will be a 5 sec. irradiation followed by a 10 sec. rest, which constituted one lasing cycle. The lasing cycle will be performed four times for each tooth.
The needle will be operated using Satelec P5 Piezoelectric Ultrasonic Unit (Acteon, Mount Laurel, NJ, USA.) at power setting of 5. The stopper on the PiezoFlow needle will be set 1 mm short of binding in the canals, but not more than 75% of the WL. A syringe containing 5 mL of 2.5% NaOCl will be attached to the Piezoflow activation needle and the inactive needle will be inserted in the canal, and irrigant flow will be started before activation. During activation, the needle will be moved up and down passively in the canal
Locations(1)
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NCT07041736