Increase of homogenous new bone formation using osteoinductive factor rhGDF-5 during sinus floor augmentation in Goettingen Minipigs.
Clin Oral Implants Res
; 26(11): 1321-7, 2015 Nov.
Article
en En
| MEDLINE
| ID: mdl-25039481
ABSTRACT
OBJECTIVES:
The aim of this study was to test the hypothesis that recombinant human growth and differentiation factor-5 (rhGDF-5) induces an increased and homogenous distribution of new bone formation across the entire volume of sinus floor augmentation in 12 Goettingen Minipigs. MATERIAL ANDMETHODS:
In a randomized split-mouth design, one maxillary sinus was augmented with the bone substitute ß-TCP, whereas a combination of ß-TCP and the osteoinductive growth factor rhGDF-5 was used on the contralateral side. To evaluate the influence of dose and time on the effectiveness of the factor, two different concentrations of rhGDF-5 (400 µg and 800 µg) and healing periods (4 and 12 weeks) were each analysed.RESULTS:
After 4 weeks, a homogenous gradient of bone formation could be observed for all dosage groups, with decreasing bone density from the local bone towards the sinus membrane. Both test groups, however, achieved a higher total level of bone formation compared with the control group, which was only significant in the low-dose group (P = 0.0184). After 12 weeks, the influence of the growth factor significantly depends on the region (P = 0.023). In the low-dose group, the new bone formation did not differ significantly within the examined regions of the graft (P = 0.1118), suggesting a homogeneous bone formation over the entire augmentation. The gradient of the high-dose group was similar to the control group with a decrease of local bone development.CONCLUSIONS:
rhGDF-5 delivered on a ß-TCP scaffold material leads to an increase in homogeneous new bone formation across the entire volume of the sinus floor augmentation.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Osteogénesis
/
Regeneración Ósea
/
Factor 5 de Diferenciación de Crecimiento
/
Elevación del Piso del Seno Maxilar
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Clin Oral Implants Res
Asunto de la revista:
ODONTOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Alemania