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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of an Alternative Implant Design and Surgical Protocol on Primary Stability

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Author(s):
Mariana Lima da Costa Valente [1] ; Denise Tornavoi de Castro [2] ; Antônio Carlos Shimano [3] ; Andréa Cândido dos Reis [4]
Total Authors: 4
Affiliation:
[1] USP - Universidade de São Paulo. Department of Dental Materials and Prosthesis - Brasil
[2] USP - Universidade de São Paulo. Department of Dental Materials and Prosthesis - Brasil
[3] USP - Universidade de São Paulo. Medicine, and Rehabilitation of Locomotive Apparatus. Department of Biomechanics - Brasil
[4] USP - Universidade de São Paulo. Department of Dental Materials and Prosthesis - Brasil
Total Affiliations: 4
Document type: Journal article
Source: Brazilian Dental Journal; v. 30, n. 1, p. 47-51, 2019-03-11.
Abstract

Abstract The purpose of thisin vitrostudy was to evaluate the influence of a new proposal of implant design and surgical protocol on primary stability in different bone densities. Four groups were tested (n=9): G1 - tapered, cone morse, Ø 4.3 mm x 10 mm in length (Alvim CM); G2 - experimental tapered; G3 - cylindrical, cone morse, Ø 4.0 mm x 11 mm in length (Titamax CM) and G4 - experimental cylindrical. The experimental implants were obtained from a design change in the respective commercial models. The insertion was performed in polyurethane (PU) blocks 0.24 g/cm3(20 pcf) and 0.64 g/cm3(40 pcf), according to different surgical protocols. The primary stability was measured by means of insertion torque (IT) and pullout test. Data were analyzed by ANOVA, Tukey’s test (α=0.05) and Pearson’s correlation. For IT and pullout, conventional and experimental implants showed no difference between them when inserted in the 20 pcf PU (p>0.05). In the 40 pcf PU, the modified implants exhibited greater IT (p<0.05) and lower pullout (p<0.05) compared to the respective conventional models. The implant design tested associated with the surgical protocol, positively influenced primary stability in higher density bones. (AU)

FAPESP's process: 12/09208-0 - Analysis of primary stability of implants conventional and modified with different formats by rehearsal performance and resonance frequency and micro structural characterization
Grantee:Andréa Cândido dos Reis
Support Opportunities: Regular Research Grants