The Effect Of Ultrasound Therapy On Osseointegration And Marginal Bone Loss Around Implant-Supported Prosthesis
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Date
2017-05
Authors
Abdulhameed, Elaf Akram
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Marginal bone loss is considered to be an inevitable risk factor in implant therapy. The
reduction in the height and width of marginal bone level may affect the success rate of
implant treatment in terms of aesthetic and function. In addition, primary implant stability
during the surgical phase is an important predictor for dental implant success. However,
clinicians encounter many occasions where less than the recommended optimum primary
stability was achieved during this phase and the further prognosis of the implant become
questionable; Low-intensity pulsed ultrasound (LIPUS) has been proposed as a method for
promoting and accelerating healing time and accordingly reducing the marginal bone loss.
Therefore, this study was carried out to determine the effect of therapeutic ultrasound on
marginal bone loss using CBCT and osseointegration of dental implant using Resonance
Frequency Analysis (RFA) techniques. The study sample comprised of 22 patients; which
were divided into two groups randomly: ultrasound and non-ultrasound (control) groups,
both consisted of 11 patients. The ultrasound therapy was delivered intra-orally on the
buccal part of the implant site for a duration of 20 minutes twice a week started 2 weeks
following dental implant placement for the subsequent 10 weeks. The same ultrasound
therapy protocol was repeated 2 weeks after the delivery of the prosthesis for another 10
weeks. The bone height and width were measured and compared at three different views
(coronal, sagittal and axial) using CBCT at day 0, 3 months and 6 months. For statistical
analysis, repeated measure ANOVA with significance level of p<0.05 was used for the
evaluation and comparison within the same group and between the two different groups
based on time. Results showed that there was an increase in marginal bone level in the
ultrasound group from day 0 to 6 months and marginal bone lone loss in the control group
within the same time interval. The marginal bone increase was more statistically significant
at the buccal bone plate of p<0.05. In both groups, ultrasound and control, there was an
increase in RFA values but the increase was more pronounced in the ultrasound group
compared to control group from day 0 to 6 months. Overall, LIPUS presented valuable
addition to the bone healing around dental implant and can be utilized as a treatment
modality to save implant with questionable stability and to enhance bone regeneration
around dental implants.
Description
Keywords
Effect of therapeutic ultrasound , on marginal bone loss.