The effect of low-level laser therapy on total amount of substance P in gingival crevicular fluid: Placebo controlled randomized clinical trial

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

TCTR

Registry ID

TCTR20161228002

Enrollment

Unknown

Registered

2016-12-28

Start date

2016-01-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

total amount of substance p

Interventions

placebo,Low level laser application

Placebo Comparator Other,Experimental Device

Placebo,Low level laser application

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Healty patients with tooth requiring root canal treatment

Exclusion criteria

Exclusion criteria: Patients with systematic diseases or allergic reactions Patients taken analgesics until at least three days Previously root canal treatment performed Swelling or sinus tract Severe periodontal disease The presence of periodontal pockets more than 3 mm in the corresponding tooth Periapical radiolucency

Design outcomes

Primary

Measure	Time frame
total amount of substance P one week pg/ml	—

Secondary

Measure	Time frame
total amount of substance P one week pg/ml	—

Countries

Turkey

Contacts

Public ContactHakan Arslan

Ataturk University

dt_hakan82@hotmail.com+905339351238

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026

The effect of low&#45;level laser therapy on total amount of substance P in gingival crevicular fluid: Placebo controlled randomized clinical trial