Efficiency of photoactivated implant surface processing method for increasing stability of dental implant

Abstract

Stability of the implants is based on its endurance, which is very important for further decision and prognosis. For creation of hydrophilic surface were instilled the different methods of treatment. At the same time, the efficiency of photoactivation method and its perspectives for the increasing of the implant stability is not yet enough researched and needs the special attention. The aim of the study is to assess the stability of two groups of implants, evaluated either by the grit blasting processing and acid etching alone, or with additional photoactivation, using resonance frequency analysis (RFA). 101 implants of 56 patients (20 men and 36 women) were studied, 53 of them were treated with grit blasting processing and acid etching, and 48 with photo activation. The Implant stability quality (ISQ) was measured using the RFA method on the day of the implant set, and after 2, 8 and 16 weeks for each implant. For statistical analysis was used software package Statistica 10.0 for Windows, with following calculating M (arithmetic mean) and m (error of the arithmetic mean). Differences at p<0.05 were signed considered probable. After 8 weeks, higher indices of the stability of the implant were established in the group where photoactivation was applied (for 4,1 points ISQ, p<0,05). After 16 weeks, the implant stability quality factor was likely to be higher after the photoactivated surface of the implant (3,9 points ISQ, p<0,05). When comparing the stability ratio of the upper-jaw and lower-jaw implants in each group, both groups showed a higher coefficient of stability of the implant for the lower jaw than for the upper-jaw implants at each stage of observation (p<0,05). The average ISQ value was higher in implants with super hydrophilic surface, treated with a photocatalytic effect than in those, who did not receive such treatment, i.e. photoactivation of the surface of the implant promotes osteointegration by increasing the hydrophilic surface. Keywords: implant's stability, implant stability quality, photoactivation, resonance-frequency analysis.