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Influence of manual screwdriver design in combination with and without predrilling on insertion torque of orthodontic mini-implants (CROSBI ID 235632)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Katalinić, Andrej ; Trinajstić Zrinski, Magda ; Roksandić Vrančić, Zlatka ; Špalj, Stjepan Influence of manual screwdriver design in combination with and without predrilling on insertion torque of orthodontic mini-implants // Implant dentistry, 26 (2017), 1; 95-100. doi: 10.1097/ID.0000000000000515

Podaci o odgovornosti

Katalinić, Andrej ; Trinajstić Zrinski, Magda ; Roksandić Vrančić, Zlatka ; Špalj, Stjepan

engleski

Influence of manual screwdriver design in combination with and without predrilling on insertion torque of orthodontic mini-implants

The study was focused on the influence of screwdriver design in combination with and without predrilling a pilot hole of inner implant diameter on insertion torque of orthodontic mini-implants, controlling for cortical thickness and vertical insertion force as cofactors. One hundred twenty mini- implants (Forestadent) of 1.7 mm in diameter and 6 and 8 mm in length were manually inserted into 120 swine rib bone samples. Maximal insertion torque as a measure of primary stability and vertical force were measured. The study included procedures with and without pilot hole and different screwdriver handles and shaft length and 2 implant lengths. Design of manual screwdriver does not modify insertion torque to a significant extent. In multiple linear regression model, significant predictors of insertion torque are thicker cortical bone (explaining 16.6% of variability), higher vertical force at maximal torque (13.5%), 6-mm implant length (2.5%), and the presence of pilot hole (2.3%). Handle type and shaft length of manual screwdriver do not significantly influence insertion torque, whereas predrilling a pilot hole has low impact on torque values of manually inserted self-drilling orthodontic mini-implants.

mini-implants ; orthodontics ; implantation

Inicijalna potpora Sveučilišta u Rijeci 13.06.2.1.53 (Prediktivni čimbenici uspjeha ortodontske terapije u djece i adolescenata).

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Podaci o izdanju

26 (1)

2017.

95-100

objavljeno

1056-6163

1538-2982

10.1097/ID.0000000000000515

Povezanost rada

Dentalna medicina

Poveznice
Indeksiranost