Background
There is no doubt that the short-term success, or the osteointegration, of dental implants depends on the primary stability while implant design and surface may have an influence on the marginal bone response during functional loading in a long-term period.
Aim/Hypothesis
The dual aim of this work was to measure the stability of dental implants prior to loading them, using a resonance frequency analysis (RFA) by Osstell® ISQ device and to assess radiographically the marginal bone level at 6 and 12 months after load in order to predict the long-term success.
Material and Methods
Nine healthy and nonsmoker adult patients with at least six months of monoedentulism received ten screw-type platform-switched single-tooth implants with SLA surface and microthreads in the neck (Prime®, Prodent) by a 2-stage procedure. RFA measurements were obtained at surgery and at 3 and 6 months after surgery in the lower and upper jaws respectively. As agreed with Brånemark’s protocol, the prosthodontic phase started 4-6 weeks after the second surgical stage and single gold ceramic crowns were cemented bypassing the provisional ones. X-ray explorations were taken for marginal bone level at the minute the last cementing of the prosthesis, as baseline, and at 6 and 12 months postloading using a paralleling technique and a waxed customized template. ImageJ® software was used to digitally process and manipulate the radiographic images and perform the measurements.
Results
At placement, the mean ISQ obtained with the magnetic device was 68,6±4,7 and at the second measurement the mean implant stability significantly increased and recorded higher values to 75,3±5 (p<0,01). Mean of bone loss at 6 months postloading was 0,143±0,067 mm and at 12 months was 0,304±0,166 (p<0,05).
Conclusions and clinical implications
The timing of loading can be easily known through the use of RFA-based devices attesting objectively a sufficient primary stability or a successfull osteointegration able to support a prosthetic load. Moreover the use of implants with some features can avoid the harmful resorption of marginal bone. Furthermore a follow-up based on standardized and repeatable periapical rx and their process and measurements performed by software can faithfully attest the marginal bone level and prevent its potential loss due to overload or perimplantitis in order to achieve a long-term success.
Background
There is no doubt that the short-term success, or the osteointegration, of dental implants depends on the primary stability while implant design and surface may have an influence on the marginal bone response during functional loading in a long-term period.
Aim/Hypothesis
The dual aim of this work was to measure the stability of dental implants prior to loading them, using a resonance frequency analysis (RFA) by Osstell® ISQ device and to assess radiographically the marginal bone level at 6 and 12 months after load in order to predict the long-term success.
Material and Methods
Nine healthy and nonsmoker adult patients with at least six months of monoedentulism received ten screw-type platform-switched single-tooth implants with SLA surface and microthreads in the neck (Prime®, Prodent) by a 2-stage procedure. RFA measurements were obtained at surgery and at 3 and 6 months after surgery in the lower and upper jaws respectively. As agreed with Brånemark’s protocol, the prosthodontic phase started 4-6 weeks after the second surgical stage and single gold ceramic crowns were cemented bypassing the provisional ones. X-ray explorations were taken for marginal bone level at the minute the last cementing of the prosthesis, as baseline, and at 6 and 12 months postloading using a paralleling technique and a waxed customized template. ImageJ® software was used to digitally process and manipulate the radiographic images and perform the measurements.
Results
At placement, the mean ISQ obtained with the magnetic device was 68,6±4,7 and at the second measurement the mean implant stability significantly increased and recorded higher values to 75,3±5 (p<0,01). Mean of bone loss at 6 months postloading was 0,143±0,067 mm and at 12 months was 0,304±0,166 (p<0,05).
Conclusions and clinical implications
The timing of loading can be easily known through the use of RFA-based devices attesting objectively a sufficient primary stability or a successfull osteointegration able to support a prosthetic load. Moreover the use of implants with some features can avoid the harmful resorption of marginal bone. Furthermore a follow-up based on standardized and repeatable periapical rx and their process and measurements performed by software can faithfully attest the marginal bone level and prevent its potential loss due to overload or perimplantitis in order to achieve a long-term success.
Background
There is no doubt that the short-term success, or the osteointegration, of dental implants depends on the primary stability while implant design and surface may have an influence on the marginal bone response during functional loading in a long-term period.
Aim/Hypothesis
The dual aim of this work was to measure the stability of dental implants prior to loading them, using a resonance frequency analysis (RFA) by Osstell® ISQ device and to assess radiographically the marginal bone level at 6 and 12 months after load in order to predict the long-term success.
Material and Methods
Nine healthy and nonsmoker adult patients with at least six months of monoedentulism received ten screw-type platform-switched single-tooth implants with SLA surface and microthreads in the neck (Prime®, Prodent) by a 2-stage procedure. RFA measurements were obtained at surgery and at 3 and 6 months after surgery in the lower and upper jaws respectively. As agreed with Brånemark’s protocol, the prosthodontic phase started 4-6 weeks after the second surgical stage and single gold ceramic crowns were cemented bypassing the provisional ones. X-ray explorations were taken for marginal bone level at the minute the last cementing of the prosthesis, as baseline, and at 6 and 12 months postloading using a paralleling technique and a waxed customized template. ImageJ® software was used to digitally process and manipulate the radiographic images and perform the measurements.
Results
At placement, the mean ISQ obtained with the magnetic device was 68,6±4,7 and at the second measurement the mean implant stability significantly increased and recorded higher values to 75,3±5 (p<0,01). Mean of bone loss at 6 months postloading was 0,143±0,067 mm and at 12 months was 0,304±0,166 (p<0,05).
Conclusions and clinical implications
The timing of loading can be easily known through the use of RFA-based devices attesting objectively a sufficient primary stability or a successfull osteointegration able to support a prosthetic load. Moreover the use of implants with some features can avoid the harmful resorption of marginal bone. Furthermore a follow-up based on standardized and repeatable periapical rx and their process and measurements performed by software can faithfully attest the marginal bone level and prevent its potential loss due to overload or perimplantitis in order to achieve a long-term success.
Background
There is no doubt that the short-term success, or the osteointegration, of dental implants depends on the primary stability while implant design and surface may have an influence on the marginal bone response during functional loading in a long-term period.
Aim/Hypothesis
The dual aim of this work was to measure the stability of dental implants prior to loading them, using a resonance frequency analysis (RFA) by Osstell® ISQ device and to assess radiographically the marginal bone level at 6 and 12 months after load in order to predict the long-term success.
Material and Methods
Nine healthy and nonsmoker adult patients with at least six months of monoedentulism received ten screw-type platform-switched single-tooth implants with SLA surface and microthreads in the neck (Prime®, Prodent) by a 2-stage procedure. RFA measurements were obtained at surgery and at 3 and 6 months after surgery in the lower and upper jaws respectively. As agreed with Brånemark’s protocol, the prosthodontic phase started 4-6 weeks after the second surgical stage and single gold ceramic crowns were cemented bypassing the provisional ones. X-ray explorations were taken for marginal bone level at the minute the last cementing of the prosthesis, as baseline, and at 6 and 12 months postloading using a paralleling technique and a waxed customized template. ImageJ® software was used to digitally process and manipulate the radiographic images and perform the measurements.
Results
At placement, the mean ISQ obtained with the magnetic device was 68,6±4,7 and at the second measurement the mean implant stability significantly increased and recorded higher values to 75,3±5 (p<0,01). Mean of bone loss at 6 months postloading was 0,143±0,067 mm and at 12 months was 0,304±0,166 (p<0,05).
Conclusions and clinical implications
The timing of loading can be easily known through the use of RFA-based devices attesting objectively a sufficient primary stability or a successfull osteointegration able to support a prosthetic load. Moreover the use of implants with some features can avoid the harmful resorption of marginal bone. Furthermore a follow-up based on standardized and repeatable periapical rx and their process and measurements performed by software can faithfully attest the marginal bone level and prevent its potential loss due to overload or perimplantitis in order to achieve a long-term success.