This study will investigate the efficacy of three diode laser wavelengths 445 nm, 660 nm, 970 nm when applied just before placement of composite restoration on reducing postoperative sensitivity from Non-carious cervical lesions (NCCLs) with class V cavity preparation.
In this randomized clinical trial, patients with NCCLs will be included (four teeth in each participant). After class V cavity preparation in the NCCLs, the teeth will be randomly assigned into four groups according to diode laser irradiation wavelength Group 1 (placebo) laser simulation and Group 2 (445 nm) diode laser wavelength, Group 3 (660 nm) diode laser wavelength, and Group 4 (970 nm) diode laser wavelength. Following laser irradiation, the universal self-etch adhesive will be applied and all the cavities will be restored with the same resin composite. Tooth sensitivity to a cold stimulus will be recorded using a visual analogue scale (VAS) before treatment and on follow-up days 1, 14 followed by 1, 3, and 6 month after treatment.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Enrollment
9
Laser Simulation
Irradiated Using a 445 nm Diode Laser Wavelength
Irradiated Using a 660 nm Diode Laser Wavelength
Dentistry
Alexandria, Egypt
Change in Dentin Hypersensitivity Assessed from Baseline to After Exposure to Diode Laser Radiation.
Dentin Hypersensitivity is Determined using Cold Stimulus. Utilizing Visual Analog Scale (VAS) Reading 0-10 Where 0 is No Pain, While 10 is the Most Experienced Pain.
Time frame: Change in Pain Scores From Baseline on the Visual Analog Scale at Day 1, Day 14, Followed by 1,3, and 6 Month Postoperatively.
Clinical assessment for esthetic, functional, and biological responses to restorative materials.
The restoration's esthetic assessment includes 1. surface luster, 2. surface staining, and 3. color stability and translucency. The functional assessment of the restoration includes 1. fracture and retention, 2. marginal adaptation, 3. wear, and 4. the patient's view . The biological category, ratings include 1. Postoperative sensitivity or hypersensitivity and tooth vitality, 2. Recurrence of carious, erosion, abrasion 3. Tooth integrity (enamel cracks) 4. Periodontal response 5. Adjacent mucosa 6. Oral and general health. Each criterion will be scored 1-5. Each score represents 1. clinically excellent/ very good, 2. clinically good, 3. clinically sufficient/ satisfactory, 4. clinically unsatisfactory, and 5. clinically poor.
Time frame: Time frame: Restorations are evaluated for esthetic, functional, and biological properties over follow-up periods of 6 months, 12 months, and 24 months.
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Irradiated Using a 970 nm Diode Laser Wavelength