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Effects of Platelet-Rich Fibrin After Mandibular Third Molar Surgery in Smokers and Nonsmokers

17 maj 2026 uppdaterad av: Mehmet Alp Eriş, Ankara University

Effects of Platelet-Rich Fibrin on Postoperative Pain, Trismus and Swelling After Impacted Mandibular Third Molar Surgery in Smokers and Nonsmokers: A Prospective Clinical Study

Mandibular third molar surgery is commonly associated with postoperative pain, swelling, and trismus. Platelet-rich fibrin (PRF) has been proposed as a biological adjunct to improve postoperative healing; however, its effectiveness in smokers remains unclear. This prospective randomized split-mouth clinical study aimed to evaluate the effects of PRF on postoperative pain, swelling, trismus, and analgesic consumption after impacted mandibular third molar surgery in smokers and nonsmokers. Thirty patients with bilaterally impacted mandibular third molars were included. PRF was placed in one extraction socket, while the contralateral socket served as the control site. Postoperative clinical outcomes were assessed during the first postoperative week and compared between smoking and nonsmoking patients.

Studieöversikt

Detaljerad beskrivning

This prospective randomized split-mouth clinical trial was conducted between 2017 and 2019 at the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ankara University. The study aimed to evaluate the effects of platelet-rich fibrin (PRF) on postoperative pain, swelling, trismus, and analgesic consumption after impacted mandibular third molar surgery in smoking and nonsmoking patients.

A total of 30 systemically healthy patients aged 18-35 years with bilaterally impacted mandibular third molars were included. Patients were divided into smoking and nonsmoking groups. In each patient, PRF was randomly applied to one extraction socket, while the contralateral socket served as the control site without PRF application. All surgical procedures were performed by the same oral and maxillofacial surgeon using a standardized surgical protocol. Outcome assessments were performed by a different clinician blinded to the intervention side.

Postoperative pain was evaluated using a visual analog scale (VAS). Facial swelling was assessed using linear facial measurements between anatomical landmarks, and trismus was evaluated by measuring maximum interincisal distance. Clinical evaluations were performed preoperatively and on postoperative days 1, 2, 3, and 7.

The primary outcome of the study was postoperative pain intensity. Secondary outcomes included postoperative swelling, trismus, and analgesic consumption. The study also aimed to compare the clinical effectiveness of PRF between smokers and nonsmokers.

Studietyp

Interventionell

Inskrivning (Faktisk)

30

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

      • Ankara, Turkiet (Türkiye), 06560
        • Ankara University Faculty of Dentistry

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Systemically healthy patients aged between 18 and 35 years
  • Bilaterally impacted mandibular third molars
  • Mandibular third molars classified as Pell and Gregory Class I, Position C
  • Mandibular third molars classified as Parant Class II difficulty
  • Smoking and nonsmoking patients
  • Patients willing to participate and provide written informed consent

Exclusion Criteria:

  • Presence of acute infection or pericoronitis
  • Pregnancy or lactation
  • Alcohol or substance abuse
  • Use of oral contraceptives
  • Menstrual period during surgery
  • Antibiotic use within the previous month
  • Smoking more than 10 cigarettes per day
  • Agitation or inability to cooperate
  • Incomplete follow-up data
  • Systemic disease contraindicating oral surgery

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Crossover tilldelning
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: PRF-treated socket
Platelet-rich fibrin (PRF) was placed into the extraction socket following impacted mandibular third molar surgery.
Autologous platelet-rich fibrin prepared from venous blood by centrifugation and placed into the extraction socket after mandibular third molar extraction.
Inget ingripande: Control socket
The contralateral extraction socket was primarily closed without PRF application after mandibular third molar surgery.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Postoperative Pain Intensity
Tidsram: Postoperative days 1, 2, 3, and 7
Postoperative pain intensity assessed using a 100-mm visual analog scale (VAS) after impacted mandibular third molar surgery.
Postoperative days 1, 2, 3, and 7

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Postoperative Facial Swelling
Tidsram: Preoperative period and postoperative days 1, 2, 3, and 7
Postoperative facial swelling assessed using linear facial measurements between anatomical landmarks.
Preoperative period and postoperative days 1, 2, 3, and 7
Postoperative Trismus
Tidsram: Preoperative period and postoperative days 1, 2, 3, and 7
Trismus assessed by measuring maximum interincisal mouth opening distance.
Preoperative period and postoperative days 1, 2, 3, and 7
Postoperative Analgesic Consumption
Tidsram: Postoperative days 1, 2, 3, and 7
Number of analgesic tablets used during the postoperative follow-up period.
Postoperative days 1, 2, 3, and 7

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Mehmet Emre Yurttutan, PhD, DDS, Ankara University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

15 maj 2017

Primärt slutförande (Faktisk)

21 december 2018

Avslutad studie (Faktisk)

21 december 2018

Studieregistreringsdatum

Först inskickad

17 maj 2026

Först inskickad som uppfyllde QC-kriterierna

17 maj 2026

Första postat (Faktisk)

22 maj 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

22 maj 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

17 maj 2026

Senast verifierad

1 maj 2026

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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