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상악 구치부의 발치와 동시에 시행하는 상악동저 증강술을 이용한 임프란트 증례
김민규,진민주,안은주,Kim, Min-Kue,Jin, Min-Ju,Ahn, Eun-Joo 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.3
Rapid crestal bone resorption following maxillary tooth loss is further accentuated in the posterior regions because of pneumatization and enlargement of the maxillary sinuses. A treatment rationale that allows preservation and augmentation of vertical available bone at the time of posterior maxil-lary tooth extraction may offer numerous therapeutic benefits which are more short courses of ther-apy and no needs of additional surgical augmentation. The present study comprised 3 patients who had 4 posterior maxillary teeth with no evident bone between the tooth apex and sinus floor, as estimated through preoperative radiographic analysis. Sinus floor augmentation at the time of tooth extraction was chosen for the ltreatment of these patients. After the tooth was carefully extracted, the empty alveolus was thoroughly debrided and a trephine approach was performed. Particulated autogenous bone was gently pushed beyond the empty alveolus to elevate the sinus membrane using an osteotome. The distance between bone crest and si-nus floor was radiographically estimated 4 months after the first procedure. Another procedure was then carried out to place the implants of 11 mm length without another augmentation procedure. All implant were clinically stable, with no sign of infection. The presented surgical procedure performed at the time of extraction of posterior maxillary teeth in close proximity to the sinus floor allowed placement of implants of proper length.
최윤용(Yun Young Choi),성기용(Ki Young Sung),황수진(Su Jin Hwang),권승현(Seoung Hyun Kwon),이규철(Kue Chul Lee),김민규(Min Kyu Kim),박종진(Jong Jin Park),이정민(Jung Min Lee),안창호(Chang Ho Ahn),이중호(Jung Ho Lee) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
This paper describes the design process of three-phase Synchronous generator. stator and rotor were modelled with the result obtained from loading distribution on the provided specification. For proving validity of the result obtained from loading distribution, through Maxwell simulator the first test target values, output and efficiency, Rated speed and etc, were compared with the design result.