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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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초록보기

PURPOSE. The purpose of this study was to investigate changes in retention and wear pattern of Locator® and ADD-TOC attachments on a digital milled bar by performing chewing simulation and repeated insertion/removal of prostheses in fully edentulous models. MATERIALS AND METHODS. Locator (Locator®; Zest Anchors Inc., Escondido, CA, USA) was selected as the control group and ADD-TOC (ADDTOC; PNUAdd Co., Ltd., Busan, Republic of Korea) as the experimental group. A CAD-CAM milled bar was mounted on a master model and 3 threaded holes for connecting a bar attachment was formed using a tap. Locator and ADD-TOC attachments were then attached to the milled bar. Simulated mastication and repeated insertion/removal were performed over 400,000 cyclic loadings and 1,080 insertions/removals, respectively. Wear patterns on deformed attachment were investigated by field emission scanning electron microscopy. RESULTS. For the ADD-TOC attachments, chewing simulation and repeated insertion/removal resulted in a mean initial retentive force of 24.43 ± 4.89 N, which were significantly lower than that of the Locator attachment, 34.33 ± 8.25 N (P < .05). Amounts of retention loss relative to baseline for the Locator and ADD-TOC attachments were 21.74 ± 7.07 and 8.98 ± 5.76 N (P < .05). CONCLUSION. CAD-CAM milled bar with the ADD-TOC attachment had a lower initial retentive force than the Locator attachment. However, the ADD-TOC attachment might be suitable for long-term use as it showed less deformation and had a higher retentive force after simulated mastication and insertion/removal repetitions.

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기사명 저자명 페이지 원문 목차
Biometry of width between labial transitional line angles in anterior teeth : an observational study Chao Wen, Hongqiang Ye, Hu Chen, Yongsheng Zhou, Mingming Huang, Yuchun Sun p. 1-11

Comparison of retentive force and wear pattern of Locator® and ADD-TOC attachments combined with CAD-CAM milled bar Sung-Ki Chae, Won-Tak Cho, Jae-Won Choi, Eun-Bin Bae, Ji-Hyeon Bae, Gang-Ho Bae, Jung-Bo Huh p. 12-21

(The) effect of the digital manufacturing technique of cantilevered implant-supported frameworks on abutment screw preload Shahad Mohammmed Altuwaijri, Hanan Nejer Alotaibi, Talal Mughaileth Alnassar p. 22-31

Evaluation of median mandibular flexure values in dentulous and edentulous subjects by using an intraoral digital scanner Merve Gülsoy, Süleyman Hakan Tuna, Gürel Pekkan p. 32-44

Effect of post-rinsing time and method on accuracy of denture base manufactured with stereolithography Awutsadaporn Katheng, Manabu Kanazawa, Yuriko Komagamine, Maiko Iwaki, Sahaprom Namano, Shunsuke Minakuchi p. 45-55

Color stability of fully- and pre-crystalized chair-side CAD-CAM lithium disilicate restorations after required and additional sintering processes Carlos Alberto Jurado, Tamer El-Gendy, Jared Hyer, Akimasa Tsujimoto p. 56-62

참고문헌 (40건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
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