Objective: The aim of this study was to compare the maximum insertion torque value, maximum removal torque value and primary stability of four different commercially available miniscrew implants.
Materials and methods: In this study a total of thirty two self drilling miniscrew implants from different manufactures were made into four groups.
Each group consisting eight miniscrew implants. Group I - Dentauram (tomas), Group II- S K Surgicals, Group III-3M Unitek, Group IV- Absoanchor (Dentos). This study was done on neoteric goat mandible, which is histologically and morphologically similar to human mandible, is used for insertion of miniscrew implants. Maximum insertion torque value and maximum removal torque value will be measured for each miniscrew implants with a torque wrench (Ncm) which is inserted in the retromolar region of neoteric goat mandible.
Result: The results of this study showed that the 3M Unitek miniscrew implant had a high insertion torque and high primary stability. Insertion torque of all samples mean is compared by one-way ANOVA test followed by Tukey’s HSD post Hoc analysis. Statistically significant differences were observed in all groups. There were no significant differences for maximum removal torques between all groups.
Conclusion: Based on the results of this study, the primary stability is directly proportional to the insertion torque values. If the insertion torque value is high, stability of mini implants will also increase. Success in orthodontic treatment using miniscrew implants in terms of anchorage depends on miniscrew implants stability. Hence according to result achieved from this study, it concludes that 3M Unitek miniscrew implant and Absoanchor miniscrew implants has got results more than 15 Ncm, which has highest stability and better results.
Impact Factor
2022: 6.012
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