Naslov
Machine-Driven Versus Manual Insertion Mode: Influence on Primary Stability of Orthodontic Mini-Implants

Autori
Novšak, Domen ; Trinajstić Zrinski, Magda ; Špalj, Stjepan

Izvornik
Implant dentistry (1056-6163) 24 (2015), 1; 31-36

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
insertion mode; insertion torque; mini-implant; vertical force

Sažetak
The study aimed to explore the effect of the insertion method on maximal insertion torque as a measure of primary stability while controlling for the effect of cortical bone thickness, mini-implant length and diameter, and vertical insertion force on insertion torque. Six types of miniimplants (Dual Top ; Jeil Medical, Corp.) with diameters of 1.4, 1.6, and 2.0 mm and lengths of 6 and 8 mm were inserted manually and in a machine-driven mode into pig rib bone samples, and experiments were repeated 10 times, which totaled 120 tested implants in 120 pig rib samples. Cortical bone thickness was measured with a sliding caliper, whereas insertion torque and vertical insertion forces were recorded with a specially designed device. Significant predictors of better primary stability are thicker cortical bone (explaining 24.2% of variability), wider diameter (20.6%), manual insertion (9.9%), greater length (3.7%), higher maximal vertical insertion force (2.2%), and lower vertical force at maximal insertion torque (1.4%). Manual insertion is associated with higher primary stability of orthodontic mini-implants than mechanical insertion, but thicker cortical bone and larger implant diameter seem to be stronger predictors of primary stability.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti, Dentalna medicina

Napomena
Projekt Sveučilišta u Rijeci 13.06.2.1.53, glavni istraživač Stjepan Špalj.

POVEZANOST RADA