title: Treatment of periodontal intrabony defects with demineralized freeze-dried bone allograft in combination with platelet-rich plasma: a comparative clinical trial.
abstract: BACKGROUND
  The aim of the present randomized, double-masked, clinical trial was to compare platelet-rich plasma (PRP) combined with a demineralized freeze-dried bone allograft (DFDBA) to DFDBA mixed with a saline solution in the treatment of human intrabony defects.
  
  
  METHODS
  Sixty interproximal intrabony osseous defects in 60 healthy, non-smoking subjects diagnosed with chronic periodontitis were treated in this study. Thirty subjects each were randomly assigned to the test group (PRP + DFDBA) or the control group (DFDBA + saline). Clinical and radiographic measurements were made at baseline and at the 12-month evaluation.
  
  
  RESULTS
  Compared to baseline, the 12-month results indicated that both treatment modalities resulted in significant changes in all clinical parameters (gingival index, bleeding on probing, probing depth, clinical attachment level, and gingival recession; P <0.001) and radiographic parameters (hard tissue fill and bone depth reduction; P <0.001). However, the test group exhibited statistically significantly greater changes compared to the control group in probing depth reduction (4.3 +/- 1.7 mm versus 2.6 +/- 2.2 mm; P <0.05) and clinical attachment gain (3.5 +/- 2.1 mm versus 2.3 +/- 2.4 mm; P <0.001).
  
  
  CONCLUSIONS
  Treatment with a combination of PRP and DFDBA led to a significantly greater clinical improvement in intrabony periodontal defects compared to DFDBA with saline. No statistically significant differences were observed in the hard tissue response between the two treatment groups, which confirmed that PRP had no effect on hard tissue fill or gain in new hard tissue formation.
authors.affiliation: Division of Periodontology, Department of Dental Sciences, Graduate School of Medical and Dental Sciences, Polytechnic University of Marche, Via Tronto 10, Ancona Torrette, Italy. m.piemontese@univpm.it
authors.forename: Matteo
authors.initials: M
authors.lastname: Piemontese
authors.forename: Simone Domenico
authors.initials: SD
authors.lastname: Aspriello
authors.forename: Corrado
authors.initials: C
authors.lastname: Rubini
authors.forename: Luigi
authors.initials: L
authors.lastname: Ferrante
authors.forename: Maurizio
authors.initials: M
authors.lastname: Procaccini
mesh_terms: D000368:Aged; D016301:Alveolar Bone Loss / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D001857:Bone Matrix / Q000637:transplantation*; D001861:Bone Regeneration / Q000502:physiology; D001862:Bone Resorption / Q000000981:diagnostic imaging / Q000601:surgery; D018786:Bone Substitutes / Q000627:therapeutic use*; D002908:Chronic Disease; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D053657:Platelet-Rich Plasma; D011859:Radiography; D018709:Statistics, Nonparametric; D016896:Treatment Outcome
chemical_list: D018786:Bone Substitutes