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2019, vol. 58, br. 1, str. 87-92
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Komparativna rezonantno-frekventna analiza primarne stabilnosti kod različitog dizajna implantata
Comparative resonance frequency analysis of the primary stability at different dental implant designs
aUniverzitet u Kragujevcu, Fakultet medicinskih nauka bUniverzitet u Prištini sa privremenim sedištem u Kosovskoj Mitrovici, Medicinski fakultet, Katedra za Stomatologiju cUniverzitet u Nišu, Medicinski fakultet
e-adresa: mirko.mikic@t-com.me
Sažetak
Primarna stabilnost implantata označena je kao preduslov i jedan od faktora procjene postizanja uspješne oseointegracije. Više faktora utiče na primarnu stabilnost od kojih su tri najznačajnija: dizajn implantata, hirurška tehnika ugradnje i kvalitet koštanog tkiva. Cilj ovog rada bio je odrediti uticaj različitog makrodizajna na primarnu stabilnost implantata, kao i procjenu primarne stabilnosti u odnosu na procentualni kontakt površine implantata i kosti. Studija je sprovedena u in vitro uslovima, a kao analog humane kosti u istraživanju su korišćena svinjska rebra kortikalnog sloja debljine 2 mm, cilindrični neurezujući implantati marke Nobel Biocare Replace 3,5x10 mm i samourezujući implantati marke Bredent dimenzija 3,5x10 mm. Primarna stabilnost implantata mjerena je metodom rezonantne frekvencije Osstell mentor aparatom, a za statističku obradu podataka primijenjen je Studentov t-test. Prosječne vrijednosti primarne stabilnosti nakon tri mjerenja na dubini od 5 mm kod neurezujućih Nobel Biocare iznosila je 30 ISQ. Kod samourezujućih Bredent implantata vrednosti su bile 42 ISQ. Na dubini od 10mm izmjerene su sledeće prosječne vrijednosti primarne stabilnosti: Nobel Biocare 70 ISQ i Bredent 72 ISQ. Studentovim t-testom (p < 0,05) utvrđeno je da postoji međusobno statistički značajna razlika u vrijednostima primarne stabilnosti kod različitog dizajna implantata. Dizajn implantata igra bitnu ulogu u postizanju adekvatne primarne stabilnosti. U ovoj studiji izmjerene su statistički značajne više vrijednosti primarne stabilnosti kod samourezujućih u odnosu na neurezujuće implantate na dubini od 5 mm, što ih preporučuje kod imedijantne ugradnje.
Abstract
Primary implant stability appears to be a prerequisite for successful osseointegration of dental implants. Different factors may contribute to initial implant stability, and these include implant design, surgical technique and bone quality. The aim of this study was to determine the effect of different macro design on primary stability, and the evaluation of primary stability relative to the percentage contact surface of the implant and bone. The research was conducted in vitro, with pig ribs as analogue of human bone (cortical thickness 2 mm, non-self taping implants Nobel Biocare Replace 3.5x10 mm and self-tapping implants Bredent 3.5x10 mm. The primary stability was measured with Osstell mentor instrument and Student's t-test was used for statistical data processing. The average value of primary stability after three measurements with 5mm contact of bone and non-self tapping for Nobel Biocare is 30 ISQ. In self-tapping Bredent implants, the ISQ values were 42 ISQ. When the contact with the bone was on 10 mm, the following average values of primary stability were recorded: Nobel Biocare 70 ISQ, and Bredent 72 ISQ. Chisquare test (p < 0.05) showed that there is a statistically significant difference in the values of primary stability in implants with different designs. Implant design plays an important role in achieving adequate primary stability. In this study, there were statistically significant higher values of primary stability recorded in self-tapping compared to non-self-tapping implants at the 5mm depth, thus recommending it for immediate placement.
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