Effect of implant design and bone density in primary stability
AUTOR(ES)
Oliscovicz, Nathalia Ferraz, Shimano, Antônio Carlos, Marcantonio Junior, Elcio, Lepri, César Penazzo, Reis, Andréa Cândido dos
FONTE
Braz. J. Oral Sci.
DATA DE PUBLICAÇÃO
2013-09
RESUMO
AIM: To evaluate the influence of the format and surface treatment of implants, as well as the substrate used in primary stability. METHODS: Thirty-two Conexão® implants were used: 8 conical (CC) (11.5 x 3.5 mm) and 24 cylindrical (11.5 x 3.75 mm) - 8 external hexagon implants without surface treatment (MS), 8 external hexagon implants with double Porous treatment (MP), 8 internal hexagon implants with Porous treatment (CA). They were inserted in Nacional® polyurethane in three densities (15, 20 and 40 PCF). The insertion torque (IT) (N.cm) was quantified using the digital Mackena® torque meter, and the pullout force (PF) (N) by means of axial traction force with a 200 kg load cell, performed in a Universal Test Machine (Emic® DL10000) and the Tesc 3.13 software. Data were analyzed statistically by ANOVA and Tukey's test with a significance level of 5%. RESULTS: Difference was observed between groups (p<0.05). Regarding the IT, MP and MS inserted to the substrate 40PCF showed higher values with statistically significant difference with all interactions implants x substrate; the 15 and 20PCF densities was not significant in all groups of implants. MP, MS, CC and CA did not differ significantly, even inserted in a lower density, where CC showed better IT compared with other densities. For PF, the best performance was the interaction implant CA x 40PCF substrate, showing a difference from the other implants inserted in all substrates. CONCLUSIONS: The higher bone density and cylindrical implants with surface treatment provides greater IT and PF.
Documentos Relacionados
- Influence of an Alternative Implant Design and Surgical Protocol on Primary Stability
- Is miniscrew primary stability influenced by bone density?
- Comparison of implant stability after different implant surface treatments in dog bone
- Influence of the growth pattern on cortical bone thickness and mini-implant stability
- Effect of treadmill gait on bone markers and bone mineral density of quadriplegic subjects