Pregled bibliografske jedinice broj: 637632
Manual vs. machine implantation of orthodontic miniscrews – influence on maximal insertion torque
Manual vs. machine implantation of orthodontic miniscrews – influence on maximal insertion torque // The 89th Congress of the European Orthodontic Society, Reykjavik, Island, 2013
Reykjavík: European Orthodontic Society, 2013. str. e178-e179 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 637632 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Manual vs. machine implantation of orthodontic miniscrews – influence on maximal insertion torque
Autori
Špalj, Stjepan ; Novšak, Domen ; Katalinić, Andrej ; Šlaj, Martina ; Šlaj, Mladen
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
The 89th Congress of the European Orthodontic Society, Reykjavik, Island, 2013
/ - Reykjavík : European Orthodontic Society, 2013, E178-e179
Skup
The 89th Congress of the European Orthodontic Society
Mjesto i datum
Reykjavík, Island, 26.06.2013. - 29.06.2013
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
miniscrew ; orthodontics ; torque
Sažetak
OBJECTIVES: The aim was to explore the influence of implantation mode (manual vs. machine) on maximal insertion torque (MIT) of orthodontic miniscrews controlling for cortical thickness, implant diameter and length as covariates. MATERIALS AND METHODS: One hundred and twenty cylindrical self-drilling miniscrews Dual Top (Jeil Medical Corp., Seul, Korea) of thread diameter 1.4, 1.6 and 2.0 mm, and length 6 and 8 mm were implanted in perpendicular direction into the swine ribs bone blocks (2x1 cm, cortical thickness in range 0.8 – 2.4 mm). Miniscrews were inserted independently by manual and machine screwdriver of constant speed, without prediriling a guiding hole. MIT and cortical bone thickness were measured. Multiple linear regression was used in statistical analysis. RESULTS: Manual implantation is significantly associated with higher MIT (p<0.001) but producing low effect size (12.3%). Other significant predictors of MIT are thicker cortical bone (p<0.001), wider thread diameter (p<0.001) and higher implant length (p<0.001) producing the effect sizes of 24.5%, 18.4% and 4.4%, respectively. CONCLUSION: Manual implantation produces higher MIT than machine implantation, but cortical bone thickness and thread diameter have higher influence on MIT than implantation mode and implant thread length.
Izvorni jezik
Engleski
Znanstvena područja
Dentalna medicina
POVEZANOST RADA
Projekti:
065-0650444-0436 - Nove dijagnostičke metode u ortodonciji i biokompatibilnost naprava (Šlaj, Mladen, MZOS ) ( CroRIS)
Ustanove:
Medicinski fakultet, Rijeka
