Title of article :
Evaluating Stability Changes of Tapered Roughened Surface Implants in Different Bone Types: A Prospective Clinical Cohort Study
Author/Authors :
Rokn, Amir Reza tehran university of medical sciences tums - Faculty of Dentistry, Dental Research Center - Department of Periodontics, تهران, ايران , Rasouli Ghahroudi, Amir Ali Reza tehran university of medical sciences tums - Faculty of Dentistry - Department of Periodontics, تهران, ايران , Mesgarzadeh, Abolhasan tehran university of medical sciences tums - Faculty of Dentistry - Department of Oral Maxillofacial Surgery, تهران, ايران , Miremadi, Asghar tehran university of medical sciences tums - Faculty of Dentistry - Department of Periodontics, تهران, ايران , Kharrazi Fard, Mohammad Javad tehran university of medical sciences tums - Dental Research Center, تهران, ايران
From page :
36
To page :
42
Abstract :
Background and aims. Implant stability of different designs have shown to be variable. The aim of this study was to evaluate the stability changes as a reflection of early healing around roughened-surface implants in human using resonance frequency analysis (RFA). Materials and methods. 153 Branemark Replace tapered Ti-unite^TM implants in 68 patients were placed in the maxilla or mandible. Bone type was classified into one of 4 groups according to Lekholm and Zarb index. RFA was used for direct implant stability measurement on the day of implant placement and at 14, 30 and 60 days after placement. Results. No early failure occurred. The lowest primary stability measurement was observed in type 4 bone. Student t-test for comparison of bone groups at each time point revealed no significant difference between implant stability in all bone types (P 0.05). In testing the effect of implant length and diameter with time using the mixed model ANOVA according to implant length, there was not any significant difference between groups (P 0.05); however, implant diameter showed a significant effect on implant stability. There were no significant differences in implant stability between genders (P 0.05). Conclusion. According to the results, pattern of stability changes are not different among different bone types.
Keywords :
Bone quality , resonance frequency , stability measurement , tapered implants.
Journal title :
Journal of Advanced Periodontology and Implant Dentistry
Journal title :
Journal of Advanced Periodontology and Implant Dentistry
Record number :
2646067
Link To Document :
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