Stomatologist № 3 (30) – 2018, pp. 38-42 Scientific publication
Evaluation of histological changes in peri-implant bone tissue after ultrasound application at early healing stages
S.P. Rubnikovicha, I.S. Khomichb
aMD, PhD, DMSci, Professor, Belarusian Medical Academy of Postgraduate Education, Minsk, Belarus
bMD, PhD, Belarusian Medical Academy of Postgraduate Education, Minsk, Belarus
https://doi.org/10.32993/stomatologist.2018.3(30).1
ABSTRACT
The aim was to study the nature of the morphological changes over time in the bone tissue around the implants under the influence of low-intensity pulsed ultrasound in the experiment.
Materials and methods. Experimental studies were carried out on rabbits of the chinchilla breed, with dental implants installed in the tibia – two experimental groups with ultrasound and one control group. The animals were withdrawn from the experiment at 1, 2, 4 and 8 weeks and histological examination of the sections of peri-implant tissues was carried out.
Results. The processes of osseointegration of dental implants in all groups of animals occurred without disrupting the normal process sequence. In the early stages granulation tissue is formed, later it is replaced by fibrous-reticular and coarse-fibrous bone tissue, and at the end – by a more mature lamellar bone tissue. However, the timing and degree of maturation of bone tissue, as well as osseointegration of implants in groups using low-frequency low-intensity pulsed ultrasound and without it differed significantly. The study showed that ultrasound exposure to implants and surrounding tissues induces osteoreparation processes, stimulating neoangiogenesis in granulation and newly formed bone tissue.
Conclusion. Application of ultrasound to implants and subsequent application to the peri-implant tissues during and after dental implantation promotes the formation of bone tissue, identical by the histostructure to the maternal bone.
Keywords: bone regeneration, osteoblasts, ultrasound, dental implants, histology.
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Адрес для корреспонденции: Е-mail: rubnikovichs@mail.ru