COMPARISON OF SURFACE ROUGHNESS AND ELEMENTAL ANALYSIS OF DIFFERENT MINI IMPLANT SYSTEMS

Abstract

Mini implant systems are used for orthodontic anchorage and are very important for the success of orthodontic treatment. Surface chemistry, surface topography and roughness of mini implant. Changes in design of mini implant not only affect stability but also the properties. Unwanted material contamination on implant surfaces affects osteointegration, stability and success. The purpose of this study was to compare different mini implant systems including their surface morphology, elemental composition, surfaces and roughness.

Six types of mini implants from six major companies were included in the study. Mini implants were analyzed with scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and infinite focus microscopy (IFM).

All mini implants showed an acceptable shape and surface morphology. However, at the higher magnification, small cavities and protrusions were observed on surfaces of some mini implant systems. Various elements which are not related to the metal composition of mini implant were detected on these mini implants. Statistically significant differences were found in terms of amounts of elements among mini implant brands.

In terms of surface characteristics, mini implants were affected by the mechanical manufacturing, packaging, sterilization and handling process. We higly recommend Alicona technique for evaluation of surfaces and the roughness in all implant surface studies. Surface roughness can increase the degree of osseointegration and it can lead to complications during removal of mini implants in orthodontics.