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:: دوره 35، شماره 2 - ( 3-1396 ) ::
جلد 35 شماره 2 صفحات 92-103 برگشت به فهرست نسخه ها
Microleakage of cervical cavities prepared by an Er:YAG laser or a high-speed handpiece, after restoration using resin composite
چکیده:   (266 مشاهده)
Objectives: The purpose of this in vitro study was to evaluate the microleakage of cervical cavities prepared by Er:YAG laser or high-speed hand piece and bur.
Methods: This in vitro experimental study was performed on 40 sound permanent third molar teeth randomly assigned into two equal groups (n=20). In the first group, high-speed hand piece and bur and in the second group Er:YAG laser was used to prepare class V cavities on the buccal or lingual surfaces. Filtek Z250 composite resin was used as the restorative material. The teeth were thermocycled for 1000 cycles, placed in 2% methylene blue solution for 24 hours, sectioned at the center of restoration and evaluated under a stereomicroscope at x40 magnification for microleakage. Data were analyzed using Mann-Whitney U test at 0.05 level of significance.
Results: There was no significant difference between the occlusal or gingival margin microleakage of cavities prepared with Er:YAG laser and high-speed hand piece (P=0.445 and P=0.758, respectively). However, the difference in the occlusal and gingival margins was significant within the high-speed hand piece (P=0.042) and Er:YAG laser ( P=0.002) groups.
Conclusion: Cavity preparation by Er:YAG laser and high speed hand piece and bur is not significantly different in terms of microleakage.
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نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
دریافت: ۱۳۹۵/۷/۲۲ | پذیرش: ۱۳۹۶/۱/۳۰ | انتشار: ۱۳۹۶/۳/۲۵
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Daneshkazemi A, Bahrololoomi Z, Davari A, Omidi A, Daneshkazemi P. Microleakage of cervical cavities prepared by an Er:YAG laser or a high-speed handpiece, after restoration using resin composite. J Dent Sch. 2017; 35 (2) :92-103
URL: http://jds.sbmu.ac.ir/article-1-1588-fa.html
Microleakage of cervical cavities prepared by an Er:YAG laser or a high-speed handpiece, after restoration using resin composite. مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی. 1396; 35 (2) :92-103

URL: http://jds.sbmu.ac.ir/article-1-1588-fa.html

دوره 35، شماره 2 - ( 3-1396 ) برگشت به فهرست نسخه ها
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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