TY - JOUR
T1 - Influence of angulation and vertical misfit in the evaluation of micro-deformations around implants
AU - Rodrigues, Vinícius Anéas
AU - Tribst, João Paulo Mendes
AU - Santis, Leandro Ruivo de
AU - Lima, Dimas Renó de
AU - Nishioka, Renato Sussumu
N1 - Publisher Copyright:
© 2017, Universidade Estadual Paulista, Institute of Science and Technology of Sao Jose dos Campos. All Rights Reserved.
PY - 2017
Y1 - 2017
N2 - Objective: This in vitro study was to evaluate micro strains around of implant, under the influence of angulations and vertical misfit in three-element implant-supported fixed partial dentures during axial loading by using strain gauge analysis. Material and Methods: Three external hexagon implants with straight configuration and three external hexagon implants with angled (17°) configuration were inserted into two polyurethane blocks. To measure micro strain, four strain gauges were bonded onto the surface of each block. Plastic copings were adapted to a standard wax pattern and cast. An axial load of 30 kgf was applied on the center of each implant for 10 seconds, using a load application device. The vertical misfit was measured at six different points by using a stereo microscope with 100-X magnification. Results: The results showed that the values for different implant angulations were significant (P = 0.0086). The Pearson’s correlation test between micro-strain and vertical misfit revealed no correlation between angled configuration (P = 0.891) and straight configuration (P = 0.568). Conclusion: The micro strain was higher for angled implants; no correlation was found between the vertical misfit and the strain values.
AB - Objective: This in vitro study was to evaluate micro strains around of implant, under the influence of angulations and vertical misfit in three-element implant-supported fixed partial dentures during axial loading by using strain gauge analysis. Material and Methods: Three external hexagon implants with straight configuration and three external hexagon implants with angled (17°) configuration were inserted into two polyurethane blocks. To measure micro strain, four strain gauges were bonded onto the surface of each block. Plastic copings were adapted to a standard wax pattern and cast. An axial load of 30 kgf was applied on the center of each implant for 10 seconds, using a load application device. The vertical misfit was measured at six different points by using a stereo microscope with 100-X magnification. Results: The results showed that the values for different implant angulations were significant (P = 0.0086). The Pearson’s correlation test between micro-strain and vertical misfit revealed no correlation between angled configuration (P = 0.891) and straight configuration (P = 0.568). Conclusion: The micro strain was higher for angled implants; no correlation was found between the vertical misfit and the strain values.
KW - Biomechanics
KW - Dental implants
KW - Dental prosthesis
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U2 - 10.14295/bds.2017.v20i1.1311
DO - 10.14295/bds.2017.v20i1.1311
M3 - Article
AN - SCOPUS:85029870955
SN - 2178-6011
VL - 20
SP - 32
EP - 39
JO - Brazilian Dental Science
JF - Brazilian Dental Science
IS - 1
ER -