Clinical Oral Investigations

, Volume 22, Issue 6, pp 2401–2411 | Cite as

Root-end surgery with leucocyte- and platelet-rich fibrin and an occlusive membrane: a randomized controlled clinical trial on patients’ quality of life

  • Nastaran Meschi
  • Steffen Fieuws
  • Anke Vanhoenacker
  • Olaf Strijbos
  • Dominique Van der Veken
  • Constantinus Politis
  • Paul Lambrechts
Original Article



The aim of this study was to investigate the impact of the adjunct of leukocyte- and platelet-rich fibrin (LPRF) to root-end surgery (RES) on the patients’ quality of life during the first week post RES.

Materials and methods

Patients in need of RES were recruited for an open randomized controlled clinical trial (RCT) with a 2 × 2 factorial design. They were randomly allocated to the test (+LPRF) and control (−LPRF) group. Each group was subsequently divided into two strata: with or without an occlusive membrane (Bio-Gide®, Geistlich Biomaterials, Switzerland; BG). After RES, the patients completed daily for 1 week a visual analog pain scale (VAS) and a 5-point Likert-type scale questionnaire concerning activity impairment, occurrence of symptoms, and medication use.


Fifty patients were included, equally divided between the test and control group. Only one patient in the “−LPRF+BG-group” had to take additional antibiotics due to a persistent jaw swelling. There was no evidence (p ≤ 0.05) for a difference between the test and control group in VAS, occurrence of pain symptoms, impairment of daily activities, and medication use, over the 7 days and daily during the 7 days post RES.


There was no statistical significant evidence for improvement of patients’ quality of life during the first week post RES with LPRF in comparison with RES without LPRF.

Clinical relevance

Although LPRF seems to be an inexpensive and autologous agent to reduce pain and swelling post RES, this RCT does not provide a statistical significant evidence for that.


Blood platelets Endodontics Periapical periodontitis Cysts Membranes 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

Ethical approval was obtained from the Medical Ethics Committee UZ KU Leuven (KU Leuven, Leuven, Belgium; registration number: S58015/B322201525314).

Informed consent

Informed consent was obtained from all individual participants included in the study.

Supplementary material

784_2018_2343_MOESM1_ESM.doc (352 kb)
ESM 1 (DOC 352 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Oral Health Sciences, Endodontology, KU Leuven & DentistryUniversity Hospitals Leuven3000 LeuvenBelgium
  2. 2.Biomaterialen—BIOMAT, KU LeuvenLeuvenBelgium
  3. 3.Leuven Biostatistics and Statistical Bioinformatics Centre, KU LeuvenUniversity of LeuvenLeuvenBelgium
  4. 4.Stomatology and Maxillofacial Surgery, KU Leuven & DentistryUniversity Hospitals LeuvenLeuvenBelgium

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