title: Effect of osteogenic periosteal distraction by a modified Hyrax device with and without platelet-rich fibrin on bone formation in a rabbit model: a pilot study.
abstract: This study evaluated the effect of a modified Hyrax device and platelet-rich fibrin (PRF) on osteogenic periosteal distraction (OPD). Twelve adult male New Zealand white rabbits were separated into two main groups (six in each) according to the duration of the consolidation period (4 or 8 weeks). In each main group, the animals underwent OPD of the left and right sides of the mandible and were divided into four subgroups (three animals per group): device vs. device+PRF, and PRF vs. sham. Radiographic, histological, histomorphometric, and micro-computed tomography (micro-CT) analyses were performed. New bone formation was observed on the lateral and vertical sides of the mandible of all groups. Micro-CT and histomorphometry showed that the device+PRF group presented the highest percentages of bone volume and bone area at 4 weeks (56.67 ± 12.67%, 41.37 ± 7.57%) and at 8 weeks (49.67 ± 8.33%, 55.46 ± 10.67%; significantly higher than the other groups, P<0.001), followed by the device group at 4 weeks (33.00 ± 1.73%, 33.21 ± 11.00%) and at 8 weeks (30.00 ± 3.00%, 23.25 ± 5.46%). In conclusion, the modified Hyrax device was used successfully for OPD in a rabbit model to gain vertical ridge augmentation, and greater bone maturation was achieved with the addition of PRF.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand. Electronic address: prisana.p@psu.ac.th.
authors.forename: P
authors.initials: P
authors.lastname: Pripatnanont
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand.
authors.forename: F
authors.initials: F
authors.lastname: Balabid
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Pongpanich
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Vongvatcharanon
mesh_terms: D000818:Animals; D001792:Blood Platelets / Q000502:physiology*; D001861:Bone Regeneration / Q000502:physiology*; D004867:Equipment Design; D005337:Fibrin / Q000502:physiology*; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery*; D019857:Osteogenesis, Distraction / Q000295:instrumentation*; D010865:Pilot Projects; D011817:Rabbits; D055114:X-Ray Microtomography
chemical_list: D005337:Fibrin
keywords: Distraction osteogenesis; Histomorphometry; Hyrax device; Micro-CT; Osteogenic periosteal distraction; Platelet-rich fibrin; Rabbit