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Effects of Photobiomodulation on Postoperative Pain After Primary Endodontic Therapy in Molars With Symptomatic Apical Periodontitis

Effects of Photobiomodulation on Postoperative Pain After Primary Endodontic Therapy in Molars With Symptomatic Apical Periodontitis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05032612
Enrollment
32
Registered
2021-09-02
Start date
2021-09-16
Completion date
2022-03-16
Last updated
2023-03-24

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

Conditions

Postoperative Pain

Keywords

endodontic treatment, mandibular molar teeth, apical periodontitis.

Brief summary

The purpose of this study is to evaluate the effects of photobiomodulation (PBM) on postoperative pain after endodontic treatment in mandibular molar teeth diagnosed with symptomatic apical periodontitis.

Interventions

After the endodontic treatment, PBM therapy will be performed using a 660 nm diode laser (SiroLaser Advance Plus, Dentsply Sirona Inc, Charlotte, NC, USA), with an 8mm tip diameter.The laser tip will be placed on the following external surfaces in a contact mode: mesiobuccal, distobuccal, mesiolingual and distolingual . The power output of the laser will be 50mW and will be verified by Power Meter (PM600 Power/Energy meter, Molectron Detector Inc, Portland, OR, USA). Each site will be irradiated for 25 s with an energy density of 10 J/cm2 .

DEVICEPBM Sham

For the PBM sham similar procedure as PBM therapy will be performed without activating the laser.

Sponsors

The University of Texas Health Science Center, Houston
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Posterior mandibular molars * No previous root canal therapy on the tooth in question * Able to complete the endodontic treatment in one visit

Exclusion criteria

* Maxillary teeth, mandibular anteriors and premolars * Infection (swelling, sinus tract) on the tooth in question * Periodontal disease on the tooth in question * Dental trauma * Crown/ root fractures * Systemic diseases * Immunocompromised patients

Design outcomes

Primary

MeasureTime frameDescription
Pain as Assessed by the Visual Analog Scale72 hours after treatmentThis scale ranges form 0(no pain) to 10(worst pain)

Secondary

MeasureTime frameDescription
Pain as Assessed by the Visual Analog Scale0 hours, 6 hours, 12 hours and 24 hours hours after treatmentThis scale ranges form 0(no pain) to 10(worst pain)

Countries

United States

Participant flow

Participants by arm

ArmCount
PBM Therapy
PBM Therapy: After the endodontic treatment, PBM therapy will be performed using a 660 nm diode laser (SiroLaser Advance Plus, Dentsply Sirona Inc, Charlotte, NC, USA), with an 8mm tip diameter.The laser tip will be placed on the following external surfaces in a contact mode: mesiobuccal, distobuccal, mesiolingual and distolingual . The power output of the laser will be 50mW and will be verified by Power Meter (PM600 Power/Energy meter, Molectron Detector Inc, Portland, OR, USA). Each site will be irradiated for 25 s with an energy density of 10 J/cm2 .
17
PBM Sham
PBM Sham: For the PBM sham similar procedure as PBM therapy will be performed without activating the laser.
15
Total32

Baseline characteristics

CharacteristicPBM ShamTotalPBM Therapy
Age, Continuous37.7 years
STANDARD_DEVIATION 14.6
41.6 years
STANDARD_DEVIATION 13.9
45.05 years
STANDARD_DEVIATION 12.83
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
15 participants32 participants17 participants
Sex: Female, Male
Female
12 Participants23 Participants11 Participants
Sex: Female, Male
Male
3 Participants9 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 170 / 15
other
Total, other adverse events
0 / 170 / 15
serious
Total, serious adverse events
0 / 170 / 15

Outcome results

Primary

Pain as Assessed by the Visual Analog Scale

This scale ranges form 0(no pain) to 10(worst pain)

Time frame: 72 hours after treatment

ArmMeasureValue (MEAN)Dispersion
PBM TherapyPain as Assessed by the Visual Analog Scale0 score on a scaleStandard Deviation 0
PBM ShamPain as Assessed by the Visual Analog Scale.33 score on a scaleStandard Deviation 0.48
Secondary

Pain as Assessed by the Visual Analog Scale

This scale ranges form 0(no pain) to 10(worst pain)

Time frame: 0 hours, 6 hours, 12 hours and 24 hours hours after treatment

ArmMeasureGroupValue (MEAN)Dispersion
PBM TherapyPain as Assessed by the Visual Analog Scale0 hours after treatment3.94 score on a scaleStandard Deviation 2.01
PBM TherapyPain as Assessed by the Visual Analog Scale6 hours after treatment1.94 score on a scaleStandard Deviation 2.46
PBM TherapyPain as Assessed by the Visual Analog Scale12 hours after treatment0.76 score on a scaleStandard Deviation 0.9
PBM TherapyPain as Assessed by the Visual Analog Scale24 hours after treatment0.23 score on a scaleStandard Deviation 0.43
PBM ShamPain as Assessed by the Visual Analog Scale24 hours after treatment1.4 score on a scaleStandard Deviation 1.18
PBM ShamPain as Assessed by the Visual Analog Scale0 hours after treatment6.13 score on a scaleStandard Deviation 2.5
PBM ShamPain as Assessed by the Visual Analog Scale12 hours after treatment3.33 score on a scaleStandard Deviation 2.4
PBM ShamPain as Assessed by the Visual Analog Scale6 hours after treatment3.86 score on a scaleStandard Deviation 2.7

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026