This randomized placebo-controlled clinical trial aimed to evaluate the effect of laser-assisted therapy on soft tissue healing at the pontic site prior to fixed partial denture rehabilitation. Clinical healing outcomes, postoperative pain levels, and gingival crevicular fluid transforming growth factor beta-2 (TGF-β2) levels were assessed to determine the biological and clinical effects of laser therapy compared with placebo.
Delayed or compromised soft tissue healing at the pontic site may prolong prosthetic treatment and negatively affect tissue stability and patient comfort. Photobiomodulation has been reported to enhance wound healing and modulate inflammatory and regenerative processes. This randomized placebo-controlled clinical trial evaluated the clinical and biological effects of laser-assisted therapy on pontic site healing prior to fixed partial denture rehabilitation. Clinical healing index scores, wound dimensions, postoperative pain levels, and gingival crevicular fluid TGF-β2 levels were assessed to investigate both clinical and biological aspects of healing.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
45
Low-level laser therapy applied once daily for five consecutive days following tooth extraction to enhance soft tissue healing at the pontic site.
Nd:YAG laser therapy applied once daily for five consecutive days following tooth extraction to promote soft tissue healing.
Placebo laser application performed under identical conditions without energy delivery.
Gaziantep University Faculty of Dentistry
Gaziantep, Turkey, Turkey (Türkiye)
Clinical healing index (Landry, Turnbull and Howley Healing Index)
Clinical healing was assessed using the Landry, Turnbull and Howley Healing Index, which provides a single composite ordinal score ranging from 1 to 5, where higher scores indicate better soft tissue healing. The score is determined based on clinical evaluation of tissue color, bleeding on palpation, presence of granulation tissue, and degree of epithelialization at the pontic site.
Time frame: Baseline, Day 7, Day 14
Wound size reduction
Measurement of wound dimensions at the pontic site to evaluate soft tissue healing.
Time frame: Baseline, Day 7, Day 14
Postoperative pain (VAS)
Postoperative pain intensity was assessed using a Visual Analog Scale (VAS) ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain intensity.
Time frame: Baseline, Day 7, Day 14
Gingival crevicular fluid TGF-β2 levels
Biochemical evaluation of transforming growth factor beta-2 levels in gingival crevicular fluid to assess biological aspects of wound healing.
Time frame: Baseline, Day 7, Day 14
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