Effect of implant design and bone density in primary stability
Braz. j. oral sci
;
12(3): 158-163, July-Sept. 2013. ilus, graf
Article
in English
| LILACS
| ID: lil-701299
ABSTRACT
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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Polyurethanes
/
Biomechanical Phenomena
/
Bone Density
/
Dental Implants
Limits:
Humans
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2013
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual Paulista/BR
/
University of São Paulo/BR
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