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Photoactivated Disinfection Versus Laser Disinfection of Infected Sockets on the Success of Immediate Implant Placement

Effect of Photoactivated Disinfection Versus Laser Disinfection of Infected Sockets on the Success of Immediate Implant Placement (a Randomized Controlled Clinical Trial)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07753044
Enrollment
9
Registered
2026-08-07
Start date
2025-06-10
Completion date
2026-02-03
Last updated
2026-08-07

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

Conditions

Infected Extraction Sockets

Brief summary

Background: Dental implantology offers reliable tooth replacement options, but infections in extraction sockets can compromise osseointegration. Conventional disinfection methods, such as chlorhexidine, often fail to completely eliminate pathogenic microorganisms and may impair tissue healing. Photoactivated disinfection (PAD) and laser disinfection have emerged as promising alternatives. PAD employs a light-activated photosensitizer to generate reactive oxygen species (ROS), effectively disrupting bacterial membranes while preserving host cell viability. In parallel, laser disinfection utilizes focused light energy to eliminate bacterial biofilms and contaminated tissue with minimal thermal damage. In this study, we specifically utilize the Er,Cr:YSGG laser, which operates at a water-absorbing wavelength to induce micro-explosions that mechanically disrupt biofilms and promote a cleaner socket environment for improved osseointegration. Aim of the study: To compare the effectiveness of photoactivated disinfection (PAD), Er,Cr:YSGG laser disinfection, and conventional disinfection with chlorhexidine in decontaminating infected extraction sockets prior to immediate implant placement, promoting bone healing, and improving the osseointegration and stability of immediate implants placed in infected extraction sockets.

Interventions

Standard treatment + Toluidine blue + Light activation + Immediate implant placement

OTHEREr,Cr:YSGG laser disinfection

Standard treatment + Er,Cr:YSGG laser application + Immediate Implant placement

OTHERChlorohexidine disinfection

Standard treatment + Chlorohexidine Irrigation + Immediate Implant placement

Sponsors

Alexandria University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Patients having posterior tooth/teeth indicated for extraction * Patients must exhibit radiographic evidence of infection, defined as chronic periapical pathology (radiolucency) * The extraction site should have intact surrounding alveolar bone * There must be at least 2 mm of sound bone beyond the root apex * Patients must be in overall good health and free from uncontrolled systemic conditions

Exclusion criteria

* History of radiation therapy in the head and neck region * Pregnant or lactating women * Patients on long-term antibiotic therapy, as it could influence the outcomes * Heavy Smoking: More than 10-15 cigarettes per day. * Significant bruxism or parafunctional habits affecting implant stability.

Design outcomes

Primary

MeasureTime frameDescription
implant stability6 monthsResonance Frequency Analysis (RFA) using Osstell ISQ: Implant Stability Quotient (ISQ) values will be recorded at 6 months after implant placement. Values from 1 to 100, the higher the ISQ, the higher the stability of the implant.
change in bone densitybaseline and 6 monthsBone density assessment using radiographs immediately post-operative and at 6 months.
change in marginal bone lossbaseline and 6 monthsMarginal Bone Loss (MBL) assessment using radiographs immediately postoperative and at 6 months.

Secondary

MeasureTime frameDescription
change in pain scoresup to 7 daysPost-operative pain will be assessed through a 10-point visual analogue scale (VAS). (0-1 = No pain, 2-4 = mild pain, 5-7 = moderate pain, 8-10 = severe pain).
change in post-operative edemaup to 7 daysPost-operative edema will be assessed as follows None (no swelling), Mild (intra oral swelling confined to surgical field), Moderate (extra oral swelling in the surgical zone), Severe (extra oral swelling spreading beyond the surgical zone)

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 8, 2026