Histologic and histomorphometric evaluation of alveolar ridge augmentation using bone grafts and titanium micromesh in humans.
BACKGROUND
Recently, the use of titanium micromesh for alveolar bone augmentation has drawn interest; however, only limited histologic data are available on the quality of the bone regenerated. Therefore, this study compared the use of 100% intraoral autogenous bone to a combination of intraoral autogenous bone (70%) and bovine porous bone mineral (BPBM) (30%) for alveolar ridge augmentation with titanium micromesh histologically and histomorphometrically.


METHODS
Twelve partially edentulous patients required alveolar bone augmentation before implant insertion because of ridge resorption. The defect sites, six in the maxilla and six in the mandible, were reconstructed with particulate autologous bone (control group, N = 6) or a mixture of autologous bone and BPBM (test group, N = 6) in combination with titanium micromesh. Core biopsies were taken from the defect sites 8 to 9 months after grafting at the time of implant insertion.


RESULTS
Newly formed compact bone with a well-organized lamellar pattern was identified in all specimens. In the samples taken from the test group, the BPBM particles were surrounded completely by newly formed bone with no signs of resorption. The mean total bone volume was 62.38% +/- 13.02% in the control group and 52.88% +/- 11.47% in the test group. The soft tissue volume was 37.61% +/- 13.02% and 29.96% +/- 12.58%, respectively, and the residual BPBM volume was 17.15% +/- 2.72% in the test group. No statistical difference was observed in the histologic parameters evaluated, irrespective of graft type and site (P >0.05).


CONCLUSIONS
Within the limits of this study, BPBM (30%) in combination with autogenous bone (70%) did not yield a lower percentage of new bone formed compared to autogenous bone alone in ridge augmentation with titanium micromesh.
Department of Odontostomatological Sciences, University of Bologna, Bologna, Italy.
Giuseppe
G
Corinaldesi
Francesco
F
Pieri
Claudio
C
Marchetti
Milena
M
Fini
Nicolò Nicoli
NN
Aldini
Roberto
R
Giardino
D000328:Adult; D000368:Aged; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001706:Biopsy; D001857:Bone Matrix / Q000637:transplantation; D001861:Bone Regeneration / Q000502:physiology; D018786:Bone Substitutes / Q000627:therapeutic use; D016025:Bone Transplantation / Q000379:methods* / Q000473:pathology; D015921:Dental Implants; D005260:Female; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000601:surgery; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D008903:Minerals / Q000627:therapeutic use; D013526:Surgical Mesh; D014025:Titanium; D014182:Transplantation, Autologous
C077540:Bio-Oss; D018786:Bone Substitutes; D015921:Dental Implants; D008903:Minerals; D014025:Titanium