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Completed

NCT Number: NCT05336578

Anti-inflammatory Effect of Platelet-Rıch Fıbrın

This study evaluated the anti-inflammatory effect of platelet-rich fibrin (PRF) applied to the extraction socket after impacted mandibular third molar surgery with subjective and objective parameters. A total of 48 patients who had fully impacted wisdom teeth in bilateral and similar positions were included in the study. The control group was formed with the standard extraction of the lower third molars, and the PRF group was formed with local PRF application in addition to standard impacted tooth surgery (n=96). The anti-inflammatory activity of PRF on postoperative 2nd and 7th days was evaluated subjectively by clinical parameters and objectively by biochemical parameters.

Subjective parameters were pain assesment, swelling measurements on the face and limitation of mouth opening. Objective data is the analysis of serum values and anti-inflammatory markers in the blood.

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Key information

Conditions

Surgical Complication Edema Edema Face Nervous System Diseases Neurologic Manifestations Neuromuscular Manifestations Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Postoperative Complications Signs and Symptoms Spasm Trismus

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Trakya University

Edirne, Merkez, 22030, Turkey (Türkiye)

About this study

Operations All surgical procedures were performed by the same surgeon, with the same flap design and the same surgical technique. 2 ml of a local anesthetic solution containing 40 mg/ml articaine HCl and 0.006 mg/ml epinephrine HCl was used for N. alveolaris inferior and N. buccalis blockage. The mucoperiosteal flap was removed by making a horizontal incision starting from the retromolar region, through horizontally in the buccal, circular around the neck of the mandibular second molar, and continuing vertically at the mesial half of the mandibular second molar tooth. Alveolotomy and/or division of teeth and/or roots were performed with sterile tungsten carbide burs with an electric controlled motor rotating at 20,000 rpm under 0.9% saline irrigation during operation. Roots were removed from the alveoli with the help of a bein elevator placed on the buccal and/or mesial parts of the teeth. After tooth extraction, the bone, soft tissue residues, and debris in the area were removed, and the socket was irrigated with 0.9% saline. In the control group, primary suturing was performed after bleeding control without any application to the extraction socket, while in the PRF group, PRF was applied to the socket just before suturing (Fig 2). All patients were prescribed antibiotics (amoxicillin-clavulanic acid, 1gr, 2x1) (Augmentin-BID, GlaxoSmithKline, London, England), analgesic (Acetaminophen, 500 mg, 3x1) (Parol, Atabay, Istanbul, Turkey) and mouthwash (120 mg %0.12 chlorhexidine gluconate and 150 mg %0.15 benzydamine hydrochloride, 200 ml, 3x1) (Kloroben, Drogsan, Ankara, Turkey) after the surgical procedure.

PRF Preparation Blood sampling was performed through the peripheral antecubital vein by selecting a suitable branule for the patient's vascular structure with a closed vacuum system. PRFs were prepared according to the method of Choukron et al.(2001). 10 ml blood samples were inserted in a centrifuge device (Intra-Lock International Inc., Boca Raton, USA), under 2700 rpm for 12 min using high speed. The platelet-rich fibrin layer remaining between the acellular plasma and red blood cells in the tube was separated with the help of scissors or a scalpel.

Obtaining edema, pain, and serum marker data A visual analog scale (VAS) of 100 mm was given to the patients to determine the severity of pain on the operation day and on the 2nd and 7th postoperative days, with 0 indicating no pain and 100 indicating the worst pain they had ever experienced. In order to evaluate the severity of edema, the tragus - buccal comissura and lateral canthus - gonion distances of the patients were measured using a flexible ruler before the operation and on the 2nd and 7th days postoperatively, and the results were recorded. To evaluate the trismus level, the interincisal distance of the patients was measured with a flexible ruler before the operation and on the 2nd and 7th days postoperatively in both groups. The progression of swelling and trismus was measured in millimeters and evaluated by comparing with the value obtained at baseline14.

For objective data, ESR values were measured using the Vision ESR analyzer (YHLO Biotech Co., Shenzhen, China), and CRP values were measured using the BN II nephelometric analyzer (Siemens Healthcare Diagnostics, Marburg, Germany). IL-6 levels (pg/ml) were determined using the Human IL-6 Elisa Kit (Elabscience Biotechnology Co., Wuhan, China) and TNF-a levels (pg/ml) were determined using the Human TNF-α Elisa Kit (Elabscience Biotechnology Co., was measured using Wuhan, China).

Statistical Evaluation Data were analyzed with the IBM SPSS® V23 (IBM Company, Chicago, IL, United States) package program. Mann-Whitney U test was used to compare non-normally distributed data according to paired groups, and an independent two-sample t-test was used to compare normally distributed data. The significance level was taken as p<0.05.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • not have any systemic disease that will prevent tissue healing
  • no history of regular drug use
  • no drug allergies
  • not smoking
  • not being pregnant
  • having bilateral mandibular third molar tooth in class II, position B and C position according to Pell & Gregory classification with the same root form, position and level of impaction
  • no signs of abscess, pericoronitis or inflammation before extraction

Exclusion criteria

  • pregnancy
  • having a chronic disease
  • having a local infection in the impacted tooth area
  • smoking

Treatment and study plan

Platelet rich fibrin application

Other

PRFs were prepared by obtaining10 ml blood samples from each patinet and inserting them in a centrifuge device (Intra-Lock International Inc., Boca Raton, USA), under 2700 rpm for 12 min using high speed. The platelet-rich fibrin layer remaining between the acellular plasma and red blood cells in the tube was separated with the help of scissors or a scalpel. After the tooth extraction in the experimental group PRF located to the extraction socket.

Primary outcomes

  1. Edema measurement

    Time frame: 2nd day posoperatively

    In order to evaluate the severity of edema, the tragus - mouth corner and lateral canthus - gonion distances of the patients were measured using a flexible ruler before the operation and on the 2nd and 7th days postoperatively, and the results were recorded.

  2. Edema measurement

    Time frame: 7th day posoperatively

    In order to evaluate the severity of edema, the tragus - mouth corner and lateral canthus - gonion distances of the patients were measured using a flexible ruler before the operation and on the 2nd and 7th days postoperatively, and the results were recorded.

  3. Trismus measurement

    Time frame: 2nd day postoperatively

    To evaluate the trismus level, the interincisal distance of the patients was measured with a flexible ruler before the operation and on the 2nd and 7th days postoperatively in both groups.

  4. Trismus measurement

    Time frame: 7th day postoperatively

    To evaluate the trismus level, the interincisal distance of the patients was measured with a flexible ruler before the operation and on the 2nd and 7th days postoperatively in both groups.

  5. Pain assesment

    Time frame: 2nd day postoperatively

    A visual analog scale (VAS) (Validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" and "worst pain") was given to the patients to determine the severity of pain on the operation day and on the 2nd and 7th postoperative days.

  6. Pain assesment

    Time frame: 7th day postoperatively

    A visual analog scale (VAS) (Validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" and "worst pain") was given to the patients to determine the severity of pain on the operation day and on the 2nd and 7th postoperative days.

  7. Erythrocyte sedimentation rate (ESR)

    Time frame: 2nd day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  8. Erythrocyte sedimentation rate (ESR)

    Time frame: 7th day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  9. C-reactive protein (CRP)

    Time frame: 2nd day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  10. C-reactive protein (CRP)

    Time frame: 7th day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  11. interleukin 6 (IL-6)

    Time frame: 2nd day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  12. interleukin 6 (IL-6)

    Time frame: 7th day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  13. tumor necrosis factor-alpha (TNF-α )

    Time frame: 2nd day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

  14. tumor necrosis factor-alpha (TNF-α )

    Time frame: 7th day postoperatively

    A serum marker for analysing acute phase response, as it is necessary for initiating the inflammatory response

Sponsors and collaborators

Lead sponsor

Nilay Er

Other

Registry information

Official study title

Comparative Investigation of Anti-inflammatory Effect of Platelet-Rıch Fıbrın After Mandibular Wisdom Tooth Surgery

Important dates

Study start
2019
Primary completion
2020
Study completion
2021
First posted
Apr 20, 2022
Registry last updated
Apr 20, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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