Effect of Physical and Chemical Sterilization on the Fracture Resistance of Orthodontic Mini-implants: An In-vitro Study

Sherin Johnson; Sameena Begum; SM Laxmikanth; Raghunandan Chunduri; Khadeer Riyaz; Anju Varughese

Effect of Physical and Chemical Sterilization on the Fracture Resistance of Orthodontic Mini-implants: An In-vitro Study

محل انتشار: دوفصلنامه ارتودنسی ایران، دوره: 18، شماره: 2

سال انتشار: 1402

نوع سند: مقاله ژورنالی

زبان: انگلیسی

مشاهده: 78

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https://civilica.com/doc/1845154

شناسه ملی سند علمی:

JR_ORTHO-18-2_004

تاریخ نمایه سازی: 15 آذر 1402

چکیده مقاله:

Aim: This study evaluated the effect of physical and chemical sterilization techniques on the fracture resistance of mini-implants. Methods: Thirty-two titanium mini-implants of ۱.۵ x ۸ mm were randomly divided into four groups: control, steam sterilized, dry heat sterilized, and chemically sterilized. The samples were then tested in the air for fracture resistance using a universal testing machine. A tangential load was applied to the head of the mini-implant with a ۱ mm/min crosshead speed after blocking each of them in the machine. Also, the maximum load was recorded previous to screw fracture. he Kruskal-Wallis test and Mann-Whitney post hoc test were used for data analysis. Results: The results of this study demonstrated the mean fracture resistance difference between the four groups was statistically significant at p<۰.۰۰۱. Moreover it was showed the control group had significantly higher mean fracture resistance compared to dry heat and chemically sterilized groups at p=۰.۰۰۱ and p=۰.۰۰۹ respectively. This was followed by the stem sterilized group demonstrating significantly higher mean fracture resistance as compared to dry heat and chemically sterilized groups at p=۰.۰۰۱ and p=۰.۰۱ respectively. Later, the chemically sterilized group also showed significantly higher mean fracture resistance as compared to the dry heat group at p=۰.۰۰۲. However, no significant difference was observed between the control and stem sterilized groups (p=۰.۲۹). Conclusion: The steam sterilized group demonstrated the highest fracture resistance that was followed by the chemically sterilized group, and the least with the dry heat sterilized group.

کلیدواژه ها:

Fracture resistance ، Mini-implants ، Orthodontics ، sterilization ، Temporary Anchorage Devices

نویسندگان

Sherin Johnson