• Title/Summary/Keyword: T-scan system

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A PRELIMINARY STUDY ON QUANTITATIVE ANALYSIS USING THE COMPUTERIZED T-SCAN SYSTEM (COMPUTERIZED T-SCAN SYSTEM을 이용한 정량적 교합분석방법에 관한 연구)

  • Yang, Jae-Ho
    • The Journal of Korean Academy of Prosthodontics
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    • v.27 no.2
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    • pp.271-277
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    • 1989
  • The purpose of this preliminary report was to describe the operating procedure of T-scan system and to identify the location, timing and force of occlusal contact in patient with normal occlusion using computerized T-scan system. From the preliminary observation , the author obtained the following results. 1. T-scan system displayed 2 dimensional and 3 dimensional description of occlusion: contact locations, timing (sequence) and forces of occlusal contacts. 2. The T-scan sensor was the most important part of the T-scan system. 3. The data of T-scan system cannot be stored in computer diskett. 4. The T-scan system is thought to be the most effective system to detect occlusal contacts and can be applied to the followings : occlusal diagnosis, occlusal equilibration, crown and bridge restorative procedures, denture adjustment, implant procedures, splint adjustment, laboratory procedures, periodontal treatment, orthodontics, TMJ treatment and patient education etc.

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Computerized occlusal analysis: correlation with occlusal indexes to assess the outcome of orthodontic treatment or the severity of malocculusion

  • Lee, Sang-Min;Lee, Jin-Woo
    • The korean journal of orthodontics
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    • v.46 no.1
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    • pp.27-35
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    • 2016
  • Objective: The aims of our study were to verify the validity of the T-Scan III system (Tekscan) as an objective occlusal evaluation tool, and to assess the differences between two occlusal indexes - the peer assessment rating (PAR) index and the American Board of Orthodontics objective grading system (OGS) - by comparing the scores derived from the T-Scan III system with the two occlusal indexes and analyzing the correlations between them. Methods: The final study sample included 48 adult volunteers (39 men and 9 women, mean age $24.14{\pm}3.16years$), after excluding 29 volunteers whose occlusion could not be evaluated by the T-Scan III system due to severe skeletal or occlusal problems. PAR index and OGS scores were assessed using dental study models, and measurements of centric occlusion, protrusive movement, and lateral excursion movement were obtained via the T-Scan III system. The results were analyzed to determine correlations. Results: Occlusal analysis by the T-Scan III system was clinically reliable (p < 0.05), and the PAR index and OGS scores were significantly correlated with several measurements obtained with the T-Scan III system (p < 0.05). Conclusions: The T-Scan III system is a quantitative and reliable method for occlusal evaluation, and represents a potential substitute for occlusal indexes. Compared to the PAR index, the OGS scores of more variables were significantly correlated with the T-Scan measurements.

Pattern Analysis of Occlusal Contacts During Lateral Excursion Using T-scan III System (T-scan III 시스템을 이용한 하악 측방운동 시 교합접촉 양상의 분석)

  • Lee, Sang-Min
    • Journal of Dental Rehabilitation and Applied Science
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    • v.29 no.1
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    • pp.59-68
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    • 2013
  • The objective of this study was to analyze occlusal contact pattern of 33 young adult males with normal occlusion during lateral excursion using T-scan III system which can measure the dynamic occlusion. Occlusal contact patterns were examined and categorized in non-working side disclusion point(more functionally acceptable position) not canine-to-canine position. Disclusion time, occlusal force, and occlusal force distribution ratio of upper canine at disclusion point during lateral excursion movement was also measured and compared among the groups divided according to contact patterns. The results showed that group function was clearly more dominant than canine guidance and other occlusal contact patterns different with existing patterns were found. There were significantly difference between groups in variables of T-scan measurement. T-scan III system is effective tools to analyze and evaluate occlusal contact patterns, disclusion time, occlusal force, and occlusal force distribution ratio of upper canine at disclusion point.

Efficient Test Data Compression and Low Power Scan Testing for System-On-a-Chip(SOC) (SOC(System-On-a-Chip)에 있어서 효율적인 테스트 데이터 압축 및 저전력 스캔 테스트)

  • Park Byoung-Soo;Jung Jun-Mo
    • The Journal of the Korea Contents Association
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    • v.5 no.1
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    • pp.229-236
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    • 2005
  • Testing time and power consumption during testing System-On-a-Chip (SOC) are becoming increasingly important as the IP core increases in a SOC. We present a new algorithm to reduce the scan-in power and test data volume using the modified scan latch reordering. We apply scan latch reordering technique for minimizing the hamming distance in scan vectors. Also, during scan latch reordering, the don't care inputs in scan vectors are assigned for low power and high compression. Experimental results for ISCAS 89 benchmark circuits show that reduced test data and low power scan testing can be achieved in all cases.

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Low Power Scan Testing and Test Data Compression for System-On-a-Chip (System-On-a-Chip(SOC)에 대한 효율적인 테스트 데이터 압축 및 저전력 스캔 테스트)

  • 정준모;정정화
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.39 no.12
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    • pp.1045-1054
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    • 2002
  • We present a new low power scan testing and test data compression mothod lot System-On-a-Chip (SOC). The don't cares in unspecified scan vectors are mapped to binary values for low Power and encoded by adaptive encoding method for higher compression. Also, the scan-in direction of scan vectors is determined for low power. Experimental results for full - scanned versions of ISCAS 89 benchmark circuits show that the proposed method has both low power and higher compression.

Low Power Test for SoC(System-On-Chip)

  • Jung, Jun-Mo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.10a
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    • pp.892-895
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    • 2011
  • Power consumption during testing System-On-Chip (SOC) are becoming increasingly important as the IP core increases in SOC. We present a new algorithm to reduce the scan-in power using the modified scan latch reordering and clock gating. We apply scan latch reordering technique for minimizing the hamming distance in scan vectors. Also, during scan latch reordering, the don't care inputs in scan vectors are assigned for low power. Also, we apply the clock gated scan cells. Experimental results for ISCAS 89 benchmark circuits show that reduced low power scan testing can be achieved in all cases.

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Maxillary anterior implant restoration with appropriate anterior guidance using T-Scan in a patient with full fixed prostheses (전악 고정성 보철 수복 환자에서 T-Scan 분석을 이용해 전-측방유도를 부여한 상악 임플란트 보철 수복)

  • Nam, Rae-Kyeong;Pang, Eun-Kyoung;Cho, Young-Eun;Park, Eun-Jin
    • The Journal of Korean Academy of Prosthodontics
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    • v.55 no.4
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    • pp.419-426
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    • 2017
  • In implant restorations, it is difficult for the patient to percept any symptoms. In addition, they are absent of shock absorbers, which can lead to mechanical failure if stress distribution is not considered. Since maxillary anterior multiple-implant restorations play a significant role in guiding the functional movement of the mandible by distributing lateral force, it is crucial to form appropriate occlusion. The use of the T-scan system is more advantageous in assessing 'dynamic occlusion', such as the change of occlusion over time, the amount of tooth contact during functional movement, and assessing the occlusion in the less-visible posterior teeth. The case is reported as it has satisfactory results in harmonious anterior guidance of a maxillary anterior multiple-implant restoration using T-scan analysis.

Low power scan testing and efficient test data compression for System-On-a-Chip

  • Jung, Jun-Mo;Chong, Jong-Wha
    • Proceedings of the IEEK Conference
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    • 2002.07a
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    • pp.228-230
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    • 2002
  • We present a new low power scan testing and test data compression method for System-On-a-Chip (SOC). The don't cares in unspecified scan vectors are mapped to binary values for low power and encoded by adaptive encoding method for higher compression. Also, the scan-in direction of scan vectors is determined for low power. Experimental results for full-scanned versions of ISCAS 89 benchmark circuits show that the proposed method has both low power and higher compression.

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Relationship between occlusion analysis using the T-scan III system and oral behavior checklist according to temporomandibular joint disorder in female college students (여대생의 측두하악장애에 따른 T-scan III System을 이용한 교합분석 및 구강행동유형과의 관련성)

  • Lee, Sun-Mi;Kim, Chang-Hee;Jun, Mi-Kyoung
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.2
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    • pp.317-327
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    • 2019
  • Objectives: This study aimed to evaluate the effects of occlusion patterns using the T-scan $III^{(R)}$ system and oral parafunctional behaviors on temporomandibular joint disorder (TMD) in female college students. Methods: A questionnaire survey assessed TMD symptoms and oral behavioral checklist (OBC) scores in 120 female college students in their early twenties. Occlusion was evaluated using the T-scan $III^{(R)}$ system. Logistic regression analysis was performed to investigate the relationship between occlusion and OBC scores based on patients' symptoms of TMD and to determine whether OBC scores were a predictor of TMD. Results: A total of 101 participants with an average age of 22 (${\pm}2.17$) years were included in the analysis. The reported symptoms of TMD were categorized as moderate (28.8%), slight (27.7%), severe (25.7%), and asymptomatic (17.8%). Occlusion was analyzed using the T-scan $III^{(R)}$ system, and the mean occlusion time was 0.42(${\pm}0.5$) seconds. The results of logistic regression analysis showed that the group that would 'clench or grind teeth' during sleep showed an odds ratio for TMD that was 8.9 times higher than that in the group without this behavior. The group that would 'hold, tighten, or tense muscles without clenching' while awake showed an odds ratio for TMD that was 21.3 times higher than that in the group without this behavior. Conclusions: We confirmed that oral parafunctional behavior affects TMD. Therefore, we would like to continue studying the diagnosis and treatment of TMD by evaluating occlusion patterns and related OBC scores.

Low Power Test for SoC(System-On-Chip)

  • Jung, Jun-Mo
    • Journal of information and communication convergence engineering
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    • v.9 no.6
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    • pp.729-732
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    • 2011
  • Power consumption during testing System-On-Chip (SOC) is becoming increasingly important as the IP core increases in SOC. We present a new algorithm to reduce the scan-in power using the modified scan latch reordering and clock gating. We apply scan latch reordering technique for minimizing the hamming distance in scan vectors. Also, during scan latch reordering, the don't care inputs in scan vectors are assigned for low power. Also, we apply the clock gated scan cells. Experimental results for ISCAS 89 benchmark circuits show that reduced low power scan testing can be achieved in all cases.