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Effects of Low-level Laser Therapy on Soft and Hard Tissue Healing After Impacted Mandibular Third Molar Extraction

Effects of Low-level Laser Therapy on Soft and Hard Tissue Healing After Impacted Mandibular Third Molar Extraction

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07190950
Enrollment
22
Registered
2025-09-24
Start date
2024-08-30
Completion date
2025-12-31
Last updated
2025-11-28

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

Conditions

Bone Healing, Low Level Laser Therapy, Third Molars Extraction

Brief summary

Impacted lower third molar extraction is one of the most commonly performed dental procedures in daily practice. However, this is considered a relatively invasive procedure. During the surgery, dental surgeon must reflect a full-thickness flap, remove bone to expose the tooth, section and deliver the tooth. As a result, after surgery, patients often experience many complications, from swelling, pain, jaw tightness, etc. to alveolar bone loss, periodontal problems distal to the second molar, etc. Therefore, clinicians are always looking for additional therapies to minimize complications, helping patients have a more comfortable experience after wisdom tooth surgery. To date, placing grafting materials such as bone or other biological materials (growth factors, platelet-rich plasma, platelet-rich fibrin) into the tooth socket has been shown to be able to preserve the alveolar crest after extraction. However, these materials require preparation time, are costly, and have the risk of infection related to bone grafts. Meanwhile, low-level laser therapy (LLLT) is known as a safe, non-invasive therapy that can affect cell metabolism without causing tissue damage. This therapy has been widely applied in many fields of medicine in general and in dentistry in particular. Low-level lasers have been studied to help reduce swelling, pain, and jaw tightness after impacted lower wisdom teeth surgery. In vitro or in vivo studies evaluating the healing effect of low-level lasers have given very positive results. However, there is still a lack of scientific evidence to prove the healing effect of low-level lasers on human tooth extraction sockets. The study we conducted is a scientific study, in the field of Dentistry. This study aimed to evaluate the effectiveness of low-level laser on soft tissue and bone healing after surgical extraction of impacted lower third molars in a group of Vietnamese population.

Interventions

PROCEDURELow Level Laser Therapy

Patients will receive LLLT at one side after third molar extraction surgery. There will be 7 sessions at the day of surgery, then first, third, seventh, fourteenth, twenty first, twenty eighth day after surgery.

Sponsors

University of Medicine and Pharmacy at Ho Chi Minh City
Lead SponsorOTHER

Study design

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

Eligibility

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

Inclusion criteria

* Healthy patients (at least 18 years of age) have both jaws lower impacted third molars indicated to be extracted. Both teeth are the same of

Exclusion criteria

\-

Design outcomes

Primary

MeasureTime frameDescription
wound healing scoreat third, seventh and thirtieth day after third molar extraction surgeryBase on IPR scale (Inflammatory Proliferative Remodeling Scale) by Hamzani et al. (2018)
New bone densityThe day of surgery, first and third month after surgeryBased on periapical X-rays taken on the day of surgery right after extraction, first and third month, we calculate new bone density by calculate the pixel density at extracted socket.
Changing of alveolar crest level distal to second lower molarthe day of surgery, first and third month after third molar extraction surgeryAfter taking periapical X-rays on the day of surgery right after extraction, first and third month, we measure alveolar crest level distal to second lower molar from the base of extracted socket to cemento-enamel junction (CEJ) of second molar (the reference is a 5 mm stainless steel straight wire buried in rubber impression)

Countries

Vietnam

Contacts

Primary ContactHiep Hoang Ngoc Nguyen, Doctor of Dental Surgery
nhnhiep.nt22@ump.edu.vn(+84) 848080298

Outcome results

None listed

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