Comparative study of the osseointegration of dental implants after different bone augmentation techniques: vascularized femur flap, non-vascularized femur graft and mandibular bone graft.
OBJECTIVE
The purpose of this study was to evaluate the osseointegration of the dental implants placed into the mandible augmented with different techniques in pigs.


METHODS
Four adult domestic pigs were used. Horizontal augmentation of the mandible was performed in animals by using vascularized femur flap (VFF), non-vascularized femur graft (NVFG) and monocortical mandibular block graft (MG). After 5 months of healing 10 dental implants were placed into each augmented site. The pigs were sacrificed after 3 months of healing. Undecalcified sections were prepared for histomorphometric analysis.


RESULTS
Mean bone-implant contact (BIC) values for implants placed into MG, NVFG and VFF were 57.38 ± 11.97%, 76.5 ± 7.88%, 76.53 ± 8.15%, respectively. The BIC values of NVFG and VFF group were significantly greater than MG group (P<0.001). On the other hand, there was not statistically significant difference between NVFG group and VFF group (P=0.999).


CONCLUSIONS
NVFG as well as VFF can be considered as a promising method for augmentation of alveolar defects and the placement of the implants. The selection of non-vascularized graft or vascularized flap depends on the condition of the recipient site.
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Çukurova University, Adana, Turkey. ebenlidayi@cu.edu.tr
M Emre
ME
Benlidayi
Alexander
A
Gaggl
Heinz
H
Bürger
Christian
C
Brandner
Mehmet
M
Kurkcu
Hakki
H
Unlügenç
D000540:Alveolar Ridge Augmentation / Q000379:methods*; D000714:Anastomosis, Surgical; D000818:Animals; D001863:Bone Screws; D016025:Bone Transplantation / Q000379:methods*; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D005269:Femur / Q000098:blood supply / Q000601:surgery; D058752:Free Tissue Flaps / Q000098:blood supply / Q000145:classification*; D007091:Image Processing, Computer-Assisted; D008334:Mandible / Q000473:pathology / Q000601:surgery*; D008866:Microsurgery; D016348:Osseointegration / Q000502:physiology*; D010521:Periosteum / Q000098:blood supply / Q000601:surgery; D013499:Surface Properties; D013552:Swine; D013997:Time Factors; D020858:Tissue and Organ Harvesting / Q000379:methods*; D014945:Wound Healing / Q000502:physiology
D015921:Dental Implants