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Dental Research Journal، جلد ۱۲، شماره ۴، صفحات ۰-۰
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عنوان انگلیسی Periodontal changes following molar intrusion with miniscrews
چکیده انگلیسی مقاله Background: With the introduction of skeletal anchorage system, recently it is possible tosuccessfully intrude molar teeth. On the other hand, there have been concerns about periodontal changes associated with intrusion and there are few studies on this topic, especially for posterior teeth. Materials and Methods: Ten female patients were enrolled in this study. Maxillary molar intrusion was achieved by inserting two miniscrews and a 17 × 25 titanium molybdenum alloy spring. Crestal height changes were evaluated at three intervals including: Baseline (T0), end of active treatment (T1) and 6 months after retention (T2). Other variables including probing depth, gingival recession, attachment level and bleeding on probing were evaluated by clinical measurements in the three above mentioned intervals. One-sample Kolmogrov-Smirnov test ascertained the normality of the data. For all patients, the changes in tooth position and crestal height were evaluated using onesample t-test. (P < 0.05) Results: Supra-erupted molars were successfully intruded a mean of 2.1 ± 0.9 mm during active treatment (T0-T1). A mean bone resorption of 0.9 ± 0.9 mm in mesial crest and 1 ± 0.8 mm in distal crest had occurred in total treatment (T0-T2). A mean of 0.6 ± 1.4 mm bone was deposited on mesial crest during the retention period (T1-T2) following tooth relapse. On average, 0.8 ± 0.4 mm attachment gain was obtained. Gingival margin coronalized a mean of 0.8 ± 0.6 mm throughout the entire treatment. Probing depth showed no signifi cant change during treatment. Conclusion: Within the limitations of this study, these results suggest that not only periodontal status was not negatively affected by intrusion, but also there were signs of periodontal improvement including attachment gain and shortening of clinical crown height. Key Words: Molar, periodontal changes, tooth intrusion
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نویسندگان مقاله شاهین بیانی | shahin bayani


فرزین هروی | farzin heravi


مهرداد رادور | mehrdad radvar


نجمه انبیایی | najmeh anbiaee


اعظم سادات مدنی مدنی | azam sadat madani madani


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1724
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