fa تأثیرانحراف دیستولبیالی ایمپلنتها و اتچمنتها بر میزان گیر و طول عمراوردنچرهای متکی بر ایمپلنت جراحی- oral surgery مطالعه اصیل original article <h5 style="TEXT-JUSTIFY: kashida TEXT-ALIGN: justify LINE-HEIGHT: 115% TEXT-KASHIDA: 0% MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><b><span style="FONT-FAMILY: " lang="FA"><font size="2">خلاصه: </font></span></b><span style="FONT-FAMILY: " lang="FA"><p><font size="2"></font></p></span></h5><h5 style="TEXT-ALIGN: justify MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><font size="2"><span>سابقه و هدف: انحراف ایمپلنت و اتچمنت نسبت به مسیر نشست و برخاست پروتز</span><span style="FONT-FAMILY: " lang="FA">،</span></font><span style="FONT-FAMILY: " lang="FA"><font size="2"> بر میزان گیر و طول عمر اوردنچر مؤثر است. با توجه به کاشت ایمپلنت با انحراف دیستولبیالی، این تحقیق با هدف تاثیر انحراف</font><font face="B Nazanin"><font size="2"><span style="mso-spacerun: yes"> <font size="3"> </font></span></font><font size="3">5 درجه و10درجه دیستولبیالی ایمپلنت و اتچمنت بر میزان گیر و طول عمر اوردنچر انجام گرفت.</font><p></p></font></span></h5><h5 style="TEXT-ALIGN: justify MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><font size="3"><font size="2"><span>مواد و روش ها: </span><span style="FONT-FAMILY: " lang="FA">تحقیق بصورت تجربی و آزمایشگاهی بر روی 25 نمونه، در5 گروه انجام شد. نمونه‌ها جفت ایمپلنتها و اتچمنتهایی بودند ،که در بلوک‌های آکریلی قرار گرفتند.گروه1 (شاهد)شامل ایمپلنتها و اتچمنتها موازی وگروه‌های 2تا5 (مورد) ایمپلنت و اتچمنت‌ها دارای انحراف 5 و 10 درجه دیستو لبیالی بودند. بلوک‌ها بوسیله بزاق<font face="B Nazanin"><span style="mso-spacerun: yes">  </span><font size="3">مصنوعی مرطوب شدند. با دستگاه تست کشش</font> (</font></span><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin' mso-bidi-language: FA" dir="ltr" lang="X-NONE">Santam</span><span dir="rtl"></span><span dir="rtl"></span></font></font><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span>) مقدار گیر آنها از سیکل اول تا<font face="B Nazanin"><span style="mso-spacerun: yes">   </span>3000<span style="mso-spacerun: yes">  </span>سیکل ( طول عمر <font size="3">برابربا 750 روز) اندازه گیری شد. داده‌ها باازمون </font></font></span><font size="3"><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin' mso-bidi-language: FA" dir="ltr" lang="X-NONE">ANOVA</span><span dir="rtl"></span><span dir="rtl"></span></font><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span style="mso-spacerun: yes">  </span>و </font></span><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US mso-bidi-language: FA" dir="ltr">Paired</span><span style="mso-bidi-font-family: 'B Nazanin' mso-bidi-language: FA" dir="ltr" lang="X-NONE"><span style="mso-spacerun: yes">  </span>T-test</span><span dir="rtl"></span><span dir="rtl"></span></font></font><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span><font size="3"> بررسی گردید.</font><p></p></span></font></h5><h5 style="TEXT-ALIGN: justify MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><font size="3"><span><font size="3">یافته‌ها: </font></span><span style="FONT-FAMILY: " lang="AR-SA"><font size="3">میزان‌گیر اولیه گروه‌های1تا5</font> به ترتیب </span><span style="FONT-FAMILY: " lang="FA">(</span><span style="FONT-FAMILY: " lang="AR-SA">34/0</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span style="FONT-FAMILY: " lang="AR-SA">8/3</span><span style="FONT-FAMILY: " lang="FA">)</span><span style="FONT-FAMILY: " lang="AR-SA"> ،</span><span style="FONT-FAMILY: " lang="AR-SA">(</span><span style="FONT-FAMILY: " lang="AR-SA">27/0</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span style="FONT-FAMILY: " lang="AR-SA">6/5</span><span style="FONT-FAMILY: " lang="FA">)</span><span style="FONT-FAMILY: " lang="FA"> </span><span style="FONT-FAMILY: " lang="AR-SA">،</span><span style="FONT-FAMILY: " lang="FA">(</span><span style="FONT-FAMILY: " lang="AR-SA">66/0</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span style="FONT-FAMILY: " lang="AR-SA">6</span><span style="FONT-FAMILY: " lang="AR-SA">)</span><span style="FONT-FAMILY: " lang="AR-SA">. </span><span style="FONT-FAMILY: " lang="FA">(</span><span style="FONT-FAMILY: " lang="AR-SA">3/0</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span style="FONT-FAMILY: " lang="AR-SA">8/6</span><span style="FONT-FAMILY: " lang="FA">)</span><span style="FONT-FAMILY: " lang="FA"> </span><span style="FONT-FAMILY: " lang="AR-SA">،</span><span style="FONT-FAMILY: " lang="FA">(28/0</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span style="FONT-FAMILY: " lang="AR-SA">9/6</span><span style="FONT-FAMILY: " lang="FA">)</span><span style="FONT-FAMILY: " lang="FA"> </span><span style="FONT-FAMILY: " lang="AR-SA">بود. همچنین میزان کاهش گیر پس از 3000 سیکل برای گروههای 1تا5 به ترتیب11%،32% ،31 %، 38% و 36%بود.</span><span dir="ltr"></span><span dir="ltr"></span><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US" dir="ltr" lang="AR-SA"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"> </font></span><span style="FONT-FAMILY: " lang="AR-SA">آزمون </span><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin'" dir="ltr" lang="X-NONE">ANOVA</span><span dir="rtl"></span><span dir="rtl"></span></font><span style="FONT-FAMILY: " lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> نشان دادکه اختلاف معنی</span><span dir="ltr"></span><span dir="ltr"></span><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US" dir="ltr" lang="AR-SA"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"> </font></span><span style="FONT-FAMILY: " lang="AR-SA">داری بین میزان گیر اولیه و نهایی در گروه‌های مورد وجود ندارد</span><span dir="ltr"></span><span dir="ltr"></span><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US" dir="ltr" lang="AR-SA"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"> </font></span><span dir="rtl"></span><span dir="rtl"></span><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span>(2/0</span><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US mso-bidi-language: FA" dir="ltr">P <</span><span dir="rtl"></span><span dir="rtl"></span></font><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span>). اختلاف بین گروه شاهد و سایر گروه‌ها معنی دار بود.</span><span dir="ltr"></span><span dir="ltr"></span><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US" dir="ltr" lang="FA"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"> </font></span><span dir="rtl"></span><span dir="rtl"></span><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span>(05/0</span><font face="Times New Roman"><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US mso-bidi-language: FA" dir="ltr">P <</span><span dir="rtl"></span><span dir="rtl"></span></font><span style="FONT-FAMILY: " lang="FA"><span dir="rtl"></span><span dir="rtl"></span>)</span><span style="FONT-FAMILY: " lang="AR-SA"><p></p></span></font></h5><h5 style="TEXT-ALIGN: justify MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><font size="3"><span>نتیجه گیری: جاگذاری ایمپلنت با انحراف دیستولبیالی موجب افزایش گیر اولیه می‌شود.</span><span dir="ltr"></span><span dir="ltr"></span><span style="mso-bidi-font-family: 'B Nazanin' mso-ansi-language: EN-US mso-bidi-language: FA" dir="ltr" lang="FA"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"> </font></span><span style="FONT-FAMILY: " lang="FA">این میزان انحراف تاثیر محسوسی در کاهش طول عمر پروتز ندارد.<p></p></span></font></h5><h5 style="TEXT-JUSTIFY: kashida TEXT-ALIGN: justify TEXT-KASHIDA: 0% MARGIN: 0cm 0cm 0pt unicode-bidi: embed DIRECTION: rtl" dir="rtl" align="right"><span style="mso-bidi-language: FA" lang="FA"><p><font size="3" face="Times New Roman"> </font></p></span></h5><p align="right"><span><strong>کلید واژه­ها: </strong>انحراف ایمپلنت و اتچمنت،اوردنچر متکی بر ایمپلنت،گیر.</span></p> <p>  </p><p>  </p><p> <strong> Abstract: </strong><strong></strong></p><p>  </p><p> <strong> Background and Aim: </strong>Angulation of implant and attachment in regard to path of insertion of prosthesis would affect the retention and longevity of the overdenture. The purpose of this study was to evaluate the effect of 5 and 10 degree distolabial of implants and attachments on the retention and longevity of the overdenture. </p><p>  </p><p> <strong> Materials and Methods: </strong>This in vitro experimental study was conducted on 25 samples, divided into 5 groups. Each group included twin implants and attachments which were placed into acrylic blocks. Parallel implants and attachments comprised the control group (Group 1). The study groups (Group 2-5) consisted of implants and attachments with 5 and 10 degrees of distolabial inclination. All samples were kept wet using artificial saliva. The level of retention was then measured from cycle one to cycle 3000 (equivalent to 750 days of longevity) using the Santam retention test device. Data was analyzed by ANOVA and Paired T-test. </p><p>  </p><p> <strong> Results: </strong>The initial retention measured in groups 1-5 was: (3.8± 0.34),(5.6±0.66),(6±0.66),(6.8±0.3) and (6.9±0.28) respectively. The reduction in retention after 3000 cycles in group 1-5 was measured to be: (11%), (32%),(31%), (38%) and 36% respectively. Statistical analysis revealed no significant difference between the initial and final retention levels among the case groups (p<0.2). However, there was significant difference between the control and the case groups in terms of retention (p<0.05). </p><p>  </p><p> <strong> Conclusion: </strong>Distolabial inclination of the implant results in an initial increase of retention level followed by a reduction of retention level over time. This degree of inclination has no major influence on the longevity of the implant. </p><p> <strong> </strong></p><p> <strong> Key words: </strong>Overdenture, Angled implant, Angled attachment, Retention </p><p>  </p><p>  </p><p>  </p><p>  </p> انحراف ایمپلنت و اتچمنت،اوردنچر متکی بر ایمپلنت،گیر. • Keywords: overdenture, angled implant, angled attachment, retention. 135 144 http://jrds.ir/browse.php?a_code=A-10-7-1&slc_lang=fa&sid=1 Parsa Atashrazm پارسا آتش رزم p_atashrazm@sbmu.ac.ir 10031947532846001246 10031947532846001246 Yes Islamic Azad university of tehranFaculty of dentistry دانشکده دندانپزشکی دانشگاه آزاد تهران Mostafa Fatemi سید مصطفی فاطمی dr_fatemi@yahoo.com 10031947532846001247 10031947532846001247 No Dental school of Tehran university دانشکده دندانپزشکی دانشگاه علوم پزشکی تهران Saina Mahdizadeh ساینا مهدیزاده :saina_mahdizadeh@yahoo.com 10031947532846001248 10031947532846001248 No Leila Zamani Alavijeh لیلا زمانی علویجه 10031947532846001249 10031947532846001249 No Faculty of dentistry,Azad university of Tehran دانشکده دندانپزشکی دانشگاه آزاد تهران Mohammad Khorsand محمد خورسند 10031947532846001250 10031947532846001250 No Islamic Azad university,Dental Branch دانشکده دندانپزشکی دانشگاه آزاد