fa The Effects of Denture Cleansing Solutions on the Retention of Attachments of Implant Supported Overdentures پروتزهای دندانی Prothtodontics پژوهشي Research <b> Statement of the Problem</b>: Implant-retained overdenture can improve the stability of dentures and prevent bone loss. Overdenture-wearing patients need special hygiene care. <div>  <b>Purpose: </b>The aim of this study was to evaluate the effects of various denture cleansers on the retention of Dio orange O-rings.</div><div><b> Method and Materials:</b> In this experimental study, 40 Dio orange O-rings were divided into 4 groups (10 O-rings each) and each group was soaked for equivalent of 6 months in the following solutions: 5.25% NaOCl (1:10 dilution), Corega cleanser tabs, Professional cleanser tabs and water (as the control group). After 6 months, O-rings were tested for 2inch/minutes of tensile force. The peak load-to-dislodgement was recorded. Data were imported to SPSS18 and were analyzed by One-Way ANOVA and Tukey HSD test (p≤ 0.05). </div><div>  <b>Results</b>: Denture cleansing solutions have significant effects on the reduction of retentive value of O-rings (p≤ 0.001). Corega tabs caused the reduction of 15.7% (9.91±0.53 N) in the retentive value of O-rings and Professional tabs caused 15% (10.00±0.86 N). NaOCl caused significant decrease (48%) in retentive value of O-rings (6.10±0.91 N in comparison with the control group (11.76±1 N). </div><div>  <b>Conclusion:</b> This in-vitro study demonstrated that the retention of O-rings was affected when soaked in cleansing solutions. NaOCl caused more reduction in retentive value compared to effervescent cleansers and would not be recommended for cleansing O-rings. These results should be interpreted clinically and the role of other factors in the retention of O-rings should be considered in order to recommend the best cleanser for O-ring overdentures.</div><hr><p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><b>Source: </b>Journal of Dentistry Shiraz University of Medical Sciences </p> <p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><a href="http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/1064" target="_blank"><font color="#0000ff">Full Text</font></a></p> 0 0 http://idai.ir/browse.php?a_code=A-10-32-3116&slc_lang=fa&sid=1 Reza Derafshi 100319475328460014393 100319475328460014393 No Dept. of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran. Mina Mohaghegh mohaghegh_mina@yahoo.com 100319475328460014394 100319475328460014394 Yes Dept. of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran Maryam Saki 100319475328460014395 100319475328460014395 No Orthodontic Research Centre, Student Research Committee, Dept. of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran. Anahita Saffari 100319475328460014396 100319475328460014396 No Dept. of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran Mohammad Rabee Haghighi 100319475328460014397 100319475328460014397 No School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.