• Title/Summary/Keyword: Locator

Search Result 201, Processing Time 0.026 seconds

Mobility Management Scheme Based On Identifier/Locator Separation in Mobile IP Environment for Future Internet

  • Huynh, Thong;Hwang, Won-Joo
    • Journal of Korea Multimedia Society
    • /
    • v.15 no.12
    • /
    • pp.1492-1498
    • /
    • 2012
  • One of the major issues in current internet architecture is that it was not designed to support the user mobility. In order to overcome this restriction, in this paper, we propose an identifier/locator separation architecture which contain the overlay mapping system to store the identifier-to-locator mapping record. In addition, we design the mobility management scheme base on Identifier/Locator separation above for Furture Internet architecture. We then devise the analysis model to evaluate the signaling cost of our scheme. By conducting the simulation. we show that our scheme can operate with lower signaling cost than other schemes.

Maxillary removable partial overdenture within Locator Root Attachment in a retained root: a case report (소수 잔존 치근에 Locator Root Attachment를 활용한 상악 가철성 국소의치 증례)

  • Shin, Jin-Ho
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.33 no.3
    • /
    • pp.199-206
    • /
    • 2017
  • If maintaining oral few retained root when planning the removable prosthesis, it is possible to obtain a more comfortable and functional result. In this case report, 'Locator Root Attachment' was used to maxillary removable overdenture in patients with a few teeth and retained root. A functionally proper clinical result from attachment after clinical and radiographic analysis was observed in this case.

Maxillary implant-retained overdenture using CAD/CAM milled titanium bar with Locator® attachment: a case report (CAD/CAM으로 제작된 milled titanium bar와 Locator®를 이용한 상악 임플란트 유지 피개의치: 증례보고)

  • Kim, Min-Jeong;Oh, Sang-Chun;Huh, Yoon-Hyuk
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.30 no.1
    • /
    • pp.64-70
    • /
    • 2014
  • The purpose of this case report is to introduce milled titanium bar with Locator$^{(R)}$ that made by CAD/CAM for implant supported overdenture in maxillary edentulous patients. For over 2 years, in terms of function and esthetics, satisfactory result was obtained.

Mobile Oriented Future Internet (MOFI): Architectural Design and Implementations

  • Kim, Ji-In;Jung, Heeyoung;Koh, Seok-Joo
    • ETRI Journal
    • /
    • v.35 no.4
    • /
    • pp.666-676
    • /
    • 2013
  • With the recent growth in smartphone services, the "mobile" environment has become a key factor to consider in the design of the future Internet. In this paper, we propose Mobile-Oriented Future Internet (MOFI), which is a new architecture for the future Internet for mobile-oriented environments. The MOFI architecture is designed with three functional features: global identifier and local locator in the identifier-locator separation, query-first data delivery for route optimization, and distributed control of identifier-locator mapping. The proposed architecture and functional operations are implemented and tested using the Linux platform. From the experiment results, we see that the MOFI architecture performs better than the existing identifier-locator separation schemes, such as Proxy Mobile IP and Host Identity Protocol, in terms of data throughout, mapping control overhead, and handover delay.

Implant Supported Overdenture using Locator® System on Edentulous Patient (완전 무치악 환자에서 Locator® system을 이용한 임플란트 피개의치 수복 증례)

  • Lee, Sang-Yeob;Shin, Sooyeon
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.24 no.4
    • /
    • pp.351-359
    • /
    • 2008
  • It is difficult to provide prosthodontic treatment to fully edentulous patients with severe alveolar bone resorption, because this makes patents hard to endure functional load, and to adapt to the dentures, which result in emotional stress to patients. Implant supported overdenture can be chosen to solve these problems. Among several types of them, the implant retained and tissue supported overdenture, is available to the patients of low masticatory force with the reduced cost. Attachments also can be used for increasing retention and esthetics in dentures. Especially, $Locator^{(R)}$ system needs a small vertical interarch space for restoration and is able to compensate the difference of angle between fixtures. In this study, we restored maxilla with conventional complete denture, and mandible with implant and tissue supported overdenture and $Locator^{(R)}$ system.

Retrospective Evaluation of Implant Retained Overdentures Using Two Implants and Locator Attachments in the Edentulous Mandibles (Locator attachment를 이용한 하악 임플란트 유지 피개의치의 후향적 평가)

  • Lee, Ju-Hyoung;Sohn, Dong-Seok;Lee, Cheong-Hee
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.29 no.2
    • /
    • pp.153-162
    • /
    • 2013
  • This study compared the marginal bone loss around dental implants that were placed in the canine areas of the mandibles and finded the survival rate of the implants, marginal bone loss around implants and prosthetic complications in 20 patients treated with overdentures retained with Locator attachments. Implants placed in this study showed a 95% survival rate and the average marginal bone loss was 1.21 mm($SD{\pm}0.60mm$) in 94.3 weeks of functional loading. Implant-retained overdentures had various prosthetic complications such as male change, metal cap loosening, Locator attachment loosening, denture teeth change, relining and denture fracture. Implant-retained overdentures using two implants and Locator attachments in the edentulous mandibles is considered as a stable way for long terms because of minimal invasive operation, simple prosthetic process and easy repair.

Clinical evaluation of implant retained overdentures using two implant and Locator attachments in the fully edentulous mandibles (Locator attachment를 이용한 하악 임플란트 유지형 피개의치의 임상적 평가)

  • Lee, Ju-Hyoung;Sohn, Dong-Seok
    • The Journal of Korean Academy of Prosthodontics
    • /
    • v.49 no.4
    • /
    • pp.283-290
    • /
    • 2011
  • Purpose: This study compared the marginal bone loss around dental implant that were placed in the canine areas of the mandibles and finded the survival rate of implants, marginal bone loss around implants and prosthetic complications in 10 patients treated with overdentures retained with Locator attachments. Materials and methods: Ten patients who had received implant retained overdentures in the mandibules using two implants and Locator attachments at Daegu Catholic University Medical Center from 2004 to 2010 were included in this study. Evaluations of the survival rate of implants, marginal bone loss and prosthetic complications were performed. Results: Implants placed in this study showed a 100% survival rate and the average annual bone loss was 1.03 mm ${\pm}$ 0.20 mm in the first year. The patients have verbally indicated that they are comfortable and that their overdentures function well. But, implant retained overdentures had various prosthetic complications such as male change, relining, rebasing and denture fracture. Conclusion: Implant retained overdentures using two implant and Locator attachments in the fully edentulous mandibles is considered as a stable way for long terms because of minimal invasive operation, simple prosthetic process and easy repair.

A Study on the accuracy of the elecronic apex locator using a micro-computed tomography (미세단층촬영기(Micro-CT)를 이용한 전자 근관장 측정기의 정확성에 관한 연구)

  • Chun K.J.;Kim Y.S.;Lee H.J.;Nam T.K.
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2006.05a
    • /
    • pp.647-648
    • /
    • 2006
  • The length of root canal has to be measured to cure root canal. Several apex locators were developed to measure the length of root canal. And they were verified by X-ray or micrometer method. But these methods do not consider the non-linear bends of pulp and have ${\pm}0.5mm$ error which is large to measure the length of root canal. The purpose of this study is the research of new method to measure the length of root canal and verifying the apex locator using Micro-CT. The length of root canal of 6 teeth were measured with the apex locator. When the apex locator reads 0.5, 0.6, 0.7, 0.5, 0.9, 1.0mm, the teeth with the file fixed were photographed. The average lengths of root canal of 6 teeth measured by Micro-CT were 0.488, 0.589, 0.680, 0.775, 0.897, 0.992mm.

  • PDF

A STUDY ON THE MECHANISM BY WHICH THE FREQUENCY-DEPENDENT APEX LOCATOR DETECTS THE APEX OF THE ROOT IN MOIST CANALS (주파수의존 근관장 측정기가 습윤한 근관내에서 근첨을 인지하게 되는 원리에 관한 연구)

  • Park, Han-Soo;Yoo, Hyeon-Mee;Oh, Tae-Seok
    • Restorative Dentistry and Endodontics
    • /
    • v.23 no.2
    • /
    • pp.676-681
    • /
    • 1998
  • The purpose of this study is to explain theoretically the mechanism of the frequency-dependent apex locator which can detect the apex of the root in moist canals with blood or other conductible canal irrigants. The frequency-dependent apex locator is based on measuring the ratio of the two impedances of the two alternating currents with different frequencies. We analyzed the changes of the ratio between the two impedances by using differential calculus. Our analysis shows that : 1. When the file is in the moist canal, the ratio between the two impedances is almost constant. 2. As the file approaches the apex of the root, the ratio decreases sharply. By this mechanism, the frequency-dependent apex locator can detect the apex of the-root quite accurately in moist canals.

  • PDF

Implant Supported Overdenture using Locator$^{(R)}$ System on Mandibular Edentulous Patient (하악 무치악 환자에서 Locator$^{(R)}$를 이용한 임플란트 피개의치 수복 증례)

  • Yu, Jung-Hyun;Shin, Soo-Yeon
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.28 no.4
    • /
    • pp.397-406
    • /
    • 2012
  • Loss of tooth results in remodeling and resorption of surrounding alveolar bone which causes atrophic edentulous ridge and gradually decreasing gingival attachment. As a result, edentulous patients face difficulty in using dentures due to pain, decrease of support, decline of masticatory efficiency of complete denture. To improve this, overdenture with implant in the mandible and attachment are considered as a treatment of choice as a favorable treatment. In this case, a patient with edentulous ridge for long period is rehabilitated by complete denture in maxilla and implant overdenture using Locator$^{(R)}$ attachment in mandible.