Fig. 6. Loading of implant off-axially
Fig. 6. Loading of implant off-axially
Fig. 5. Loading of implant axially
Fig. 5. Loading of implant axially
Fig. 4. Installation of strain gauges on surfaces of epoxy resin adjacent to mini implants
Fig. 4. Installation of strain gauges on surfaces of epoxy resin adjacent to mini implants
Fig. 3. Lava Ultimate Restorative crown on the two mini implants.
Fig. 3. Lava Ultimate Restorative crown on the two mini implants.
Fig. 2. Metal crown supported on two mini implants
Fig. 2. Metal crown supported on two mini implants
Fig. 1.
Fig. 1. a Standard, b short-wide, and c single-piece mini implants
Crown
Implant type
Axial
Off-axial
P-value
Mean
SD
...
Axial
Off-axial
P value
Mean
SD
Mean
SD
...
Lava Ultimate
crowns
Metal
crowns
P value
Mean
SD
Mean
...
Load
Crown type
Standard
Short-wide
Double mini
P value
...
Standard
Short-wide
Double mini
P value
Mean
SD
Mean
...
Elfadaly, L.S., Khairallah, L.S. & Al Agroudy, M.A. Peri-implant biomechanical responses to standard, short-wide, and double mini implants replacing missing molar supporting hybrid ceramic or full-metal crowns under axial and off-axial loading: an in vitro study.
Int J Implant Dent 3, 31 (2017). https://doi.org/10.1186/s40729-017-0094-2
Download citation
Received: 14 Februar...
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...
The authors L.S.Elfadaly, L.S.Kheirallah, and M.A.Alagroudy state that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Fixed Prosthodontics, Cairo University, Giza, Egypt
Lamiaa Said Elfadaly, Lamiaa Sayed Khairallah & Mona Atteya Al Agroudy
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You can also search for this author in
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LSE have...
Gracis S, Nicholls J, Chalupnik J, Yuodelis R. Shock-absorbing behavior of five restorative materials used on implants. Int J Prosthodont. 1990;4:282–91.
Skalak R. Biomechanical considerations in osseointegrated prostheses. J Prosthet Dent. 1983;49:843–8.
Misch C. Clinical biomechanics in implant dentistry, Contemporary Implant Dentistry. 3rd ed. 2008. p. 543–56. mosby,inc.
Lundgren D, La...
Himmlova L, Dostalova T, Kacovsky A, Konvickova S. Influence of implant length and diameter on stress distribution: a finite element analysis. J Prosthet Dent. 2004;91(1):20–5.
Shetty S, Puthukkat N, Bhat S, Shenoy K. Short implants: a new dimension in rehabilitation of atrophic maxilla and mandible. Journal of Interdisciplinary Dentistry. 2014;4(2):66.
Misch C, Bidez M. Contemporary implant d...
Barbier L, Vander SJ, Krzesinski G, Schepers E, Van der Perre G. Finite element analysis of non-axial versus axial loading of oral implants in the mandible of the dog. J Oral Rehabil. 1998;25(11):847–58.
Saime S, Murat C, Emine Y. The influence of functional forces on the biomechanics of implant-supported prostheses—a review. J Dent. 2002;30:271–82.
Balshi T, Hernandez R, Pryszlak M, Range...
Mazor Z, Lorean A, Mijiritsky E, Levin L. Replacement of a molar with 2 narrow diameter dental implants. Implant Dent. 2012;21(1):36–8.
Atwood D. Postextraction changes in the adult mandible as illustrated by micrographs of midsagittal sections and serial cephalometric roentgenograms. J Prosthet Dent. 1963;13:810–24.
Felice P, Pellegrino G, Checchi L, Pistilli R, Esposito M. Vertical augment...
Within the limitations of this in vitro study, the following conclusions could be drawn:
Implant design, superstructure material, and load direction significantly affect peri-implant microstrains.
The recorded compressive and tensile microstrains for the tested designs were within the physiologic loading range, as they did not exceed the compressive or tensile strength of the bone-implant interf...
Regarding the effect of superstructure material on induced microstrains, generally, different implant designs supporting Lava Ultimate crowns showed higher mean microstrain values(1927.3 ± 1536.6 μɛ), in comparison with those supporting metal crowns (1313.7 ± 973.1 μɛ).Theoretical considerations [44, 45] and in vitro experiments [46,47,48,49] suggest that an occlusal material with ...
Regarding the effect of direction of loading on induced microstrains, it was shown that changing the position of occlusal loading had a considerable effect on the amount of distribution of stresses where axial loading generated even distribution of load around the implant in comparison to off-axial loading where stresses were more pronounced in the area of load application. This might be due to th...
Previous studies have shown that direct correlations exist between microstrain magnitudes and bone stability/instability conditions. This has been summarized by Frost, when bone is loaded below about 2000 microstrains, bone can easily repair what little microdamage occurs. Yet, when pathologic overloading occurs (over 4000 microstrains), stress and strain gradients exceed the physiologic tolerance...
To replace a missing lower molar in compromised ridge, different treatment options were suggested, using either a standard size implant with surgical procedures, short-wide implant, or two mini implants. Concerning the use of mini implant, splinted multiple implants increase the surface area that interfaces with the bone to lessen the per square millimeters of force borne by the bone [11]. The imp...
Results revealed that standard implant showed the statistically significantly highest mean microstrain values (3362.4 ± 757.4 μɛ). Double mini implant showed statistically significantly lower mean microstrain values (801.6 ± 251.4 μɛ), while short-wide implant showed the statistically significantly lowest mean microstrain values (697.6 ± 79.7 μɛ), with a P value
Data were presented as mean and standard deviation (SD) values. Data were explored for normality by checking data distribution and histograms, calculating mean and median values, and finally using Kolmogorov-Smirnov and Shapiro-Wilk tests of normality. Stress data showed non-parametric distribution, so the Kruskal-Wallis test was used to compare between the types of implants. The Mann-Whitney U te...
Each crown was cemented to its corresponding implant-abutment assembly using temporary cement (Cavex Temporary Cement, Cavex, Holland).
Each implant received 4 strain gauges (Kowa strain gages, Japan) placed on the mesial, distal, buccal, and lingual surfaces of the epoxy resin adjacent to the implants. At these selected sites, the thickness of the epoxy resin surrounding each implant was reduced...
In the present study, the following materials were used: titanium root form endosseous implants of standard diameter and length (4-mm platform, 3.8-mm diameter,12-mm length, fixture bevel 0.2 mm, Super Line System, Dentium, USA), short-wide implant (7-mm platform, 5.8-mm diameter, 7-mm length, Super Line System, Dentium, Seoul, Korea) with 1.5-mm machined surface and 5.5-mm threaded surface that ...
There are several factors that affect force magnitudes in peri-implant bone. The application of functional forces induces stresses and strains within the implant prosthesis complex and affect the bone remodeling process around implants [8, 9].
While there are several methods of measuring strain, the most common is with a strain gauge, a device whose electrical resistance varies in proportion to t...
The molars are one of the first teeth to be lost over lifetime; thus, their replacement is frequently needed. Implantation is generally the preferred choice to replace a missing single tooth avoiding vital teeth preparation and bridge fabrication [1].
The mandibular bone loss occurs as knife-edge residual ridge where there is marked narrowing of the labiolingual diameter of the crest of the ridge...
The aim of this study was to evaluate the biomechanical response of the peri-implant bone to standard, short-wide, and double mini implants replacing missing molar supporting either hybrid ceramic crowns (Lava Ultimate restorative) or full-metal crowns under two different loading conditions (axial and off-axial loading) using strain gauge analysis.
Three single-molar implant designs, (1) single, ...
Fig. 6. Loading of implant off-axially
Fig. 6. Loading of implant off-axially
Fig. 5. Loading of implant axially
Fig. 5. Loading of implant axially
Fig. 4. Installation of strain gauges on surfaces of epoxy resin adjacent to mini implants
Fig. 4. Installation of strain gauges on surfaces of epoxy resin adjacent to mini implants
Fig. 3. Lava Ultimate Restorative crown on the two mini implants.
Fig. 3. Lava Ultimate Restorative crown on the two mini implants.
Fig. 2. Metal crown supported on two mini implants
Fig. 2. Metal crown supported on two mini implants
Fig. 1. a Standard, b short-wide, and c single-piece mini implants
Crown
Implant type
Axial
Off-axial
P-value
Mean
SD
...
Axial
Off-axial
P value
Mean
SD
Mean
SD
...
Lava Ultimate
crowns
Metal
crowns
P value
Mean
SD
Mean
...
Load
Crown type
Standard
Short-wide
Double mini
P value
...
Standard
Short-wide
Double mini
P value
Mean
SD
Mean
...
Elfadaly, L.S., Khairallah, L.S. & Al Agroudy, M.A. Peri-implant biomechanical responses to standard, short-wide, and double mini implants replacing missing molar supporting hybrid ceramic or full-metal crowns under axial and off-axial loading: an in vitro study.
Int J Implant Dent 3, 31 (2017). https://doi.org/10.1186/s40729-017-0094-2
Download citation
Received: 14 Februar...
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...
The authors L.S.Elfadaly, L.S.Kheirallah, and M.A.Alagroudy state that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Fixed Prosthodontics, Cairo University, Giza, Egypt
Lamiaa Said Elfadaly, Lamiaa Sayed Khairallah & Mona Atteya Al Agroudy
You can also search for this author in
PubMed Google Scholar
You can also search for this author in
PubMed Google Scholar
You can also search for this author in
PubMed Google Scholar
LSE have...
Gracis S, Nicholls J, Chalupnik J, Yuodelis R. Shock-absorbing behavior of five restorative materials used on implants. Int J Prosthodont. 1990;4:282–91.
Skalak R. Biomechanical considerations in osseointegrated prostheses. J Prosthet Dent. 1983;49:843–8.
Misch C. Clinical biomechanics in implant dentistry, Contemporary Implant Dentistry. 3rd ed. 2008. p. 543–56. mosby,inc.
Lundgren D, La...
Himmlova L, Dostalova T, Kacovsky A, Konvickova S. Influence of implant length and diameter on stress distribution: a finite element analysis. J Prosthet Dent. 2004;91(1):20–5.
Shetty S, Puthukkat N, Bhat S, Shenoy K. Short implants: a new dimension in rehabilitation of atrophic maxilla and mandible. Journal of Interdisciplinary Dentistry. 2014;4(2):66.
Misch C, Bidez M. Contemporary implant d...
Barbier L, Vander SJ, Krzesinski G, Schepers E, Van der Perre G. Finite element analysis of non-axial versus axial loading of oral implants in the mandible of the dog. J Oral Rehabil. 1998;25(11):847–58.
Saime S, Murat C, Emine Y. The influence of functional forces on the biomechanics of implant-supported prostheses—a review. J Dent. 2002;30:271–82.
Balshi T, Hernandez R, Pryszlak M, Range...
Mazor Z, Lorean A, Mijiritsky E, Levin L. Replacement of a molar with 2 narrow diameter dental implants. Implant Dent. 2012;21(1):36–8.
Atwood D. Postextraction changes in the adult mandible as illustrated by micrographs of midsagittal sections and serial cephalometric roentgenograms. J Prosthet Dent. 1963;13:810–24.
Felice P, Pellegrino G, Checchi L, Pistilli R, Esposito M. Vertical augment...
Within the limitations of this in vitro study, the following conclusions could be drawn:
Implant design, superstructure material, and load direction significantly affect peri-implant microstrains.
The recorded compressive and tensile microstrains for the tested designs were within the physiologic loading range, as they did not exceed the compressive or tensile strength of the bone-implant interf...
Regarding the effect of superstructure material on induced microstrains, generally, different implant designs supporting Lava Ultimate crowns showed higher mean microstrain values(1927.3 ± 1536.6 μɛ), in comparison with those supporting metal crowns (1313.7 ± 973.1 μɛ).Theoretical considerations [44, 45] and in vitro experiments [46,47,48,49] suggest that an occlusal material with ...
Regarding the effect of direction of loading on induced microstrains, it was shown that changing the position of occlusal loading had a considerable effect on the amount of distribution of stresses where axial loading generated even distribution of load around the implant in comparison to off-axial loading where stresses were more pronounced in the area of load application. This might be due to th...
Previous studies have shown that direct correlations exist between microstrain magnitudes and bone stability/instability conditions. This has been summarized by Frost, when bone is loaded below about 2000 microstrains, bone can easily repair what little microdamage occurs. Yet, when pathologic overloading occurs (over 4000 microstrains), stress and strain gradients exceed the physiologic tolerance...
To replace a missing lower molar in compromised ridge, different treatment options were suggested, using either a standard size implant with surgical procedures, short-wide implant, or two mini implants. Concerning the use of mini implant, splinted multiple implants increase the surface area that interfaces with the bone to lessen the per square millimeters of force borne by the bone [11]. The imp...
Results revealed that standard implant showed the statistically significantly highest mean microstrain values (3362.4 ± 757.4 μɛ). Double mini implant showed statistically significantly lower mean microstrain values (801.6 ± 251.4 μɛ), while short-wide implant showed the statistically significantly lowest mean microstrain values (697.6 ± 79.7 μɛ), with a P value
Data were presented as mean and standard deviation (SD) values. Data were explored for normality by checking data distribution and histograms, calculating mean and median values, and finally using Kolmogorov-Smirnov and Shapiro-Wilk tests of normality. Stress data showed non-parametric distribution, so the Kruskal-Wallis test was used to compare between the types of implants. The Mann-Whitney U te...
Each crown was cemented to its corresponding implant-abutment assembly using temporary cement (Cavex Temporary Cement, Cavex, Holland).
Each implant received 4 strain gauges (Kowa strain gages, Japan) placed on the mesial, distal, buccal, and lingual surfaces of the epoxy resin adjacent to the implants. At these selected sites, the thickness of the epoxy resin surrounding each implant was reduced...
In the present study, the following materials were used: titanium root form endosseous implants of standard diameter and length (4-mm platform, 3.8-mm diameter,12-mm length, fixture bevel 0.2 mm, Super Line System, Dentium, USA), short-wide implant (7-mm platform, 5.8-mm diameter, 7-mm length, Super Line System, Dentium, Seoul, Korea) with 1.5-mm machined surface and 5.5-mm threaded surface that ...
There are several factors that affect force magnitudes in peri-implant bone. The application of functional forces induces stresses and strains within the implant prosthesis complex and affect the bone remodeling process around implants [8, 9].
While there are several methods of measuring strain, the most common is with a strain gauge, a device whose electrical resistance varies in proportion to t...
The molars are one of the first teeth to be lost over lifetime; thus, their replacement is frequently needed. Implantation is generally the preferred choice to replace a missing single tooth avoiding vital teeth preparation and bridge fabrication [1].
The mandibular bone loss occurs as knife-edge residual ridge where there is marked narrowing of the labiolingual diameter of the crest of the ridge...
The aim of this study was to evaluate the biomechanical response of the peri-implant bone to standard, short-wide, and double mini implants replacing missing molar supporting either hybrid ceramic crowns (Lava Ultimate restorative) or full-metal crowns under two different loading conditions (axial and off-axial loading) using strain gauge analysis.
Three single-molar implant designs, (1) single, ...