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Third Molar ImpactionNCT07351279

The Effect of Platelet Rich Fibrin On Sensitivity and Periodontal Pockets Distal to Second Molar After Surgical Extraction of Impacted Third Molar

A study testing Platelet rich fibrin in people with Third Molar Impaction and Surgical Extraction of Impacted Third Molars, run by University of Health Sciences Lahore at 1 site in Pakistan.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Surgical extraction of impacted third molar is the most common surgical procedure performed in oral and maxillofacial surgery. The immediate post operative complications after 3rd molar surgery are pain, swelling and trismus while delayed post operative complications are mostly seen on the distal surface of second… Read more about this study

Who is it for?
Ages 18 to 40 years
What is being tested?
Platelet rich fibrin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
56 participants
Where
1 sitePakistan
Study dates
Feb 2026to Feb 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Impacted third molar (as per Operational Definition) with fully erupted second molars bilaterally.
  • Impacted Third molar with Class 2 and Level B according to Pell and Gregory's classification (Annexure B) with mesioangular or horizontal angulation of impaction
  • Periodontal pocket depth > 4mm and Clinical attachment loss > 1mm at distal side of second molar
  • Age 18-40 years, both genders.
  • Patients who give informed consent.

Who cannot join

  • Any Systemic Disease i.e. Uncontrolled Diabetes mellitus, Uncontrolled hypertension, Ischemic heart disease, bleeding disorders, Autoimmune diseases or immunocompromised patients
  • Decayed or recommended for extraction second molars on either side.
  • Allergic to Amoxicillin to standardize Antibiotic therapy protocol.
  • Untreated periodontal condition.
  • Inability to follow up.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Pakistan1 site
  • Allama Iqbal Medical College/ Jinnah Hospital

    Lahore, Punjab Province, 54000

    Allama Iqbal Medical College (AIMC), +92-42-99231480 ext. +92-42-9923144, Info@aimc.edu.pk

Other trials in Pakistan

About this study

Official title: " The Effect of Platelet Rich Fibrin On Sensitivity and Periodontal Pockets Distal to Second Molar After Surgical Extraction of Impacted Third Molar "

Surgical extraction of impacted third molar is the most common surgical procedure performed in oral and maxillofacial surgery. The immediate post operative complications after 3rd molar surgery are pain, swelling and trismus while delayed post operative complications are mostly seen on the distal surface of second molar due to distal bone loss which include prolonged sensitivity due to increased periodontal pocket depth, gingival recession and root exposure.

When PRF clot is given in wound, it causes alterations of the cellular ratios in the wound blood clot, leading to replacement of blood cells with Platelets and growth factors stimulating all phases of healing which will improve the immidiate and delayed post operative complications The purpose of present study is to compare the clinical outcomes in the treatment of senstivity and periodontal pockets at the distal aspect of second molar following surgical extraction of impacted third molar using PRF or Blood clot alone.

Read the detailed description

Impacted third molars distal to second molar are the cause of distal attachment loss leading to degradation of the interdental bone. This causes formation of periodontal pocket which leads to pericoronitis and further infection. If there is minimum or no distance between second and third molar, the loss of interdental bone leads to periodonto-pathogenic bacterial aggression. Partially impacted third molars are the active source of bacterial entry into the distal area of the second molar because of food retention and poor oral hygiene.

PRF is the second generation autologous platelet concentrate that is obtained from patient's own blood in simple and cost effective manner. PRF contains platelets, cytokines, leucocytes and circulating stem cells that are embedded in a heterogeneous fibrin matrix. These unique elements in PRF make it a good biomaterial that improves healing. The slow release of cytokines-vascular endothelial growth factor, transforming growth factor, Epidermal growth factor and platelet-derived growth factor-are the main components which play an important role in neo-angiogenesis and tissue repair which makes this particular material useful.

Platelet-Rich Fibrin (PRF), has potential to enhance soft and hard tissue healing However, the evidence surrounding its effectiveness in reduction of sensitivity and periodontal pockets remains inconclusive. Previous studies evaluating the use of PRF have reported contradictory results. While some have demonstrated a significant reduction in periodontal pocket depth and improved healing when PRF is applied to the extraction socket, others have found little to no difference when compared to surgical extraction without PRF placement. This inconsistency highlights the need for further investigation to clarify PRF's role in postoperative outcomes, particularly in relation to periodontal health distal to the second molar. In addition, many of the available studies on PRF in third molar extraction are limited by small sample sizes which reduces the statistical power and generalizability of their findings. Contradiction in their results are most probably due to small sample size Therefore study with larger sample size is required to validate previous results and offer more conclusive evidence Furthermore, there is a notable lack of research focusing on postoperative tooth sensitivity, which is a common patient complaint following third molar extraction. Existing literature has predominantly emphasized parameters such as pain, swelling, and periodontal pocket depth, while the effect of PRF on sensitivity remains largely unexplored. This represents a significant gap in research and patient-centered outcomes.

By assessing periodontal pocket depth, clinical attachment loss and sensitivity distal to the second molar with larger sample size, this study aims to offer a more integrated evaluation of PRF's effectiveness in third molar surgery

Being tested
Platelet rich fibrin

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Platelet rich fibrinOther

    Also called PRF

    After surgical extraction of impacted mandibular 3rd molar PRF will be placed in extraction socket

Study groups in NCT07351279
Study groupRoleWhat they receive
Case GroupExperimentalPRF placement in extraction socket
Receives: Other: Platelet rich fibrin
Control GroupNo interventionSurgical extraction without using PRF

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Periodontal Pocket Depth

    Periodontal pocket depth will be measured as a distance between gingival margin and base of the periodontal pocket in millimeters by Williams periodontal probe .

    Measured: From Enrollment to end of treatment at 03 months

  2. Senstivity

    Response of patient elicited by painful stimulus i.e Tactile stimulus which is characteristically of short duration will be measured by Tactile method i.e. scratching the distal surface of second molar at cemento-enamel junction with dental explorer on Numeric scale with values from 0 to 10, 0 being the least/no sensitivity and 10 being the worst

    Measured: from Enrollment to end of treatment at 03 months

  3. Clinical attachment loss

    Clinical attachment loss will be measured as a distance between cemento-enamel junction of second molar to the base of periodontal pocket in millimeters by williams periodontal probe

    Measured: From Enrollment to end of treatment at 03 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jan 2026
  2. Study startFeb 2026 (estimated)
  3. Primary completionJul 2027 (estimated)
  4. Study completionFeb 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Split mouth randomized, Controlled clinical trial
Masking
None (open label)
Enrolment
56 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07351279
Sponsor's protocol ID
ERB167/2/02-07-2024/S1 ERB
Status last verified
Jan 2026
First submitted
11 Jan 2026
Last updated
20 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Tadić, A., Bajkin, B., Mijatov, I., Mirnić, J., Vukoje, K., Sokač, M. And Vukelić, D., 2023. Influence of L-PRF topical application on bone tissue healing after surgical extraction of impacted mandibular third molars: A randomized split-mouth clinical study. Applied Sciences, 13, 4823.

  • Sybil D, Sawai M, Faisal M, Singh S, Jain V. Platelet-Rich Fibrin for Hard- and Soft-Tissue Healing in Mandibular Third Molar Extraction Socket. Ann Maxillofac Surg. 2020 Jan-Jun;10(1):102-107. doi: 10.4103/ams.ams_228_19. Epub 2020 Jun 8.

    PubMed 32855924
  • Swetha Bhat, B., Periasamy, S. And Arun, M., 2021. Incidence of residual periodontal defects distal to second molar due to a mesioangular mandibular impacted third molar. International Journal of Dentistry and Oral Science, 8(7), pp. 3119-3123.

  • Roy, I.D., Saxena, V., Babu, B.K.N. and Perumal, S.J., 2021. Efficacy of platelet-rich fibrin on pain, edema, and healing in mandibular third molar surgery: A split-mouth randomized study. Journal of Dental Defence Section, 15, pp. 21-30.

  • Rocha MOC, Cruz AACF, Santos DO, Douglas-DE-Oliveira DW, Flecha OD, Goncalves PF. Sensitivity and specificity of assessment scales of dentin hypersensitivity - an accuracy study. Braz Oral Res. 2020 May 8;34:e043. doi: 10.1590/1807-3107bor-2020.vol34.0043.

    PubMed 32401933
  • Malhotra A, Kapur I, Das D, Sharma A, Gupta M, Kumar M. Comparative evaluation of bone regeneration with platelet-rich fibrin in mandibular third molar extraction socket: A randomized split-mouth study. Natl J Maxillofac Surg. 2020 Jul-Dec;11(2):241-247. doi: 10.4103/njms.NJMS_50_19. Epub 2020 Dec 16.

    PubMed 33897188
  • Lam, C.P., Nguyen, T.B.N. and Nguyen, T.B.L., 2023. Effect of platelet-rich fibrin on soft tissue, periodontal pocket healing, and alveolar bone height after third molar surgery: A randomized clinical trial. Scholars Journal of Dental Sciences, 10(7), pp. 121-127.

  • Gasparro R, Sammartino G, Mariniello M, di Lauro AE, Spagnuolo G, Marenzi G. Treatment of periodontal pockets at the distal aspect of mandibular second molar after surgical removal of impacted third molar and application of L-PRF: a split-mouth randomized clinical trial. Quintessence Int. 2020;51(3):204-211. doi: 10.3290/j.qi.a43947.

    PubMed 32020130
  • Castro AB, Meschi N, Temmerman A, Pinto N, Lambrechts P, Teughels W, Quirynen M. Regenerative potential of leucocyte- and platelet-rich fibrin. Part A: intra-bony defects, furcation defects and periodontal plastic surgery. A systematic review and meta-analysis. J Clin Periodontol. 2017 Jan;44(1):67-82. doi: 10.1111/jcpe.12643. Epub 2016 Nov 24.

    PubMed 27783851
  • Bhujbal, R., Veerabhadrappa, S.K., Yadav, S., Chappi, M. And Patil, V., 2020. Evaluation of platelet-rich fibrin and platelet-rich plasma in impacted mandibular third molar extraction socket healing and bone regeneration: A split-mouth comparative study. European Journal of General Dentistry, 9, pp. 96-102.

  • Abad CE, Sanz-Sanchez I, Serrano V, Sanz Esporrin J, Sanz-Martin I, Sanz M. Efficacy of the application of leukocyte and platelet-rich fibrin (L-PRF) on alveolar ridge preservation. A randomized controlled clinical trial. Clin Implant Dent Relat Res. 2023 Jun;25(3):592-604. doi: 10.1111/cid.13208. Epub 2023 Apr 23.

    PubMed 37088697

Questions about this trial

What is this clinical trial studying?

A study testing Platelet rich fibrin in people with Third Molar Impaction and Surgical Extraction of Impacted Third Molars, run by University of Health Sciences Lahore at 1 site in Pakistan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 20 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Pakistan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact MHayat (+923420690087, uhayat722@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Periodontal Pocket Depth (time frame: From Enrollment to end of treatment at 03 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07351279, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jan 2026.

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