Title

Clinical study on low-level laser therapy to control postoperative pain and quality of life in patients undergoing root canal treatment

Authors

Chavva Lakshmi Charan Reddy^1,*, Rashmi Patil², Taniya Maqsood³, Siddiq Ahmed⁴, Priyadarshani⁵, Azeem Sultana⁶ & Md. Kafeel Ahmed⁷

Affiliation

¹Department of Conservative Dentistry and Endodontics, Panineeya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India; ²Department of Conservative Dentistry and Endodontics, P.M.N.M Dental College and Hospital, Bagalkot, Karnataka, India; ³Department of Conservative Dentistry and Endodontics, Private Consultant in Hyderabad, Telangana, India; ⁴Department of Conservative Dental Sciences, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia; ⁵Department of Conservative Dentistry and Endodontics, Bhabha College of Dental Sciences, Bhopal, Madhya Pradesh, India; ⁶Deparment of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Hyderabad, Telangana, India; ⁷Department of Periodontology and Implantology, MNR Dental College and Hospital, Sangareddy, Hyderabad, Telangana, India; *Corresponding author

Email

Chavva Lakshmi Charan Reddy - E-mail: charan1288024@gmail.com

Rashmi Patil - E-mail: drrashmipatil11@gmail.com

Taniya Maqsood - E-mail: dr.taniya12@gmail.com

Siddiq Ahmed - E-mail: siddiqendo@gmail.com

Priyadarshani - E-mail: priyadarshani.rai24@gmail.com

Azeem Sultana - E-mail: write2azeem06@gmail.com

Md. Kafeel Ahmed - E-mail: drkafeelsohar@gmail.com

Article Type

Research Article

Date

Received February 1, 2026; Revised February 28, 2026; Accepted February 28, 2026, Published February 28, 2026

Abstract

Postoperative pain affects 25-40% of Randomized Controlled Trial (RCT) patients, impairing oral health-related quality of life (OHRQoL). This double-blind RCT randomized 80 single-visit RCT patients to low-level laser therapy (LLLT) (808 nm periapical laser) or placebo postoperatively. LLLT reduced 24-hour Visual Analog Scale (VAS) pain scores (2.1±1.2 vs 4.8±1.5; p<0.001) across all timepoints. Oral Health Impact Profile-14 (OHIP-14) scores improved significantly (15.3±3.1 vs 22.7±4.5; p<0.001) with 58% less analgesic use. Immediate LLLT advances RCT recovery as safe adjunct for pain control and enhanced OHRQoL.

Keywords

Low-level laser therapy; root canal treatment; postoperative pain; quality of life; visual analog scale; oral health impact profile

Citation

Reddy et al. Bioinformation 22(2): 615-619 (2026)

Edited by

Vini Mehta

ISSN

0973-2063

Publisher

Biomedical Informatics

License

This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.