Application of Functionally Graded Materials to Crown ... of Functionally Graded Materials to Crown Restorations -Mechanical Properties of Titanium/Porcelain Functionally Graded Materials- Department of 1Restorative Dentistry and Endodontology and 2TSUKADA Gakuji

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  • 134

    0412

    /

    Application of Functionally Graded Materials to Crown Restorations

    Mechanical Properties of Titanium/Porcelain Functionally Graded Materials Department of Restorative Dentistry and Endodontology and 2Biomaterials Science,

    Kagoshima University Graduate School of Medical and Dental Sciences TSUKADA Gakuji, KANIE Takahito,TOKUDA Masayuki1,TORII Mitsuo1

    ( FGM )2

    4 FGM

    1. (A2O, ) ()

    2. FGM (SPS-515S, SPS ) 10 FGM 100 100 :=2 : 1 :=1 : 2 40MPa 10 650 5 10 3.5

    AUTO CERAM-77 (SANKIN ) 3. HM-102)TG-50kN 9.8 N 10 10 mm/min 5

    Fig. 1, 2

    FGM 2 5 3 2

    P530412

  • 135

    0404

    Er,Cr:YSGG Air Turbine

    2

    Comparative Study of the Cavities Preparated ith Er,Cr:YSGG Laser and Air Turbine 1Department of Operative Dentistry, School of Life Dentistry at Niigata, The Nippon Dental University

    2Advanced Operative DentistryEndodontics, Graduate School of Life Dentistry at Niigata,

    The Nippon Dental University 3Research Center for Odontology, School of Life Dentistry at Tokyo, The Nippon Dental University

    KATO Chikage1, SHINKAI Koichi1, SUZUKI Masaya1, TAIRA Yoshihisa2,

    OGAWA Masaaki3, KATOH Yoshiroh1

    Er,Cr:YSGG

    Er,Cr:YSGG Waterlase MD

    SEM

    3 Waterlase MD Turbo 8

    3810NaClO

    SEM

    1 Waterlase MD Turbo

    383810NaClO

    SEM

    2 1 38

    3810NaClO3810

    NaClO

    EPMA

    Er,Cr:YSGG Waterlase MD

    SEM

    10

    P540404

  • 136

    0499

    CO2 1

    2

    Hormetic effect of CO2 laser irradiation on the growth of human gingival firolasts in vitro1 Division of Operative Dentistry, Department of Restorative and Biomaterials Sciences and 2 Division of Dental Pharmacology, Department of Diagnostic and Therapeutic Sciences, Meikai University School

    of Dentistry

    IWASAKA Kensuke1, YASUNAGA Makoto1, YAMADA Akiko1,DANTANI Yuka1, SAKAGAMI Hiroshi2 and

    KATAYAMA Tadashi1

    high level laser treatmentHLLT low level laser treatmentLLLT

    CO

    COPRO LA12 :

    12 A0808

    confluent

    (HGF-1)10%(FBS) DMEM

    MTT (0.2 mg/mL) 4 37DMSO 540 nm

    96 37.6mm2

    52 mm 96 48 0.51.0

    2.03.05.0W 0.51.01.53.05.010152030sec CWSP1SP2

    244872 MTT

    30sec

    SP2 2.0W-48h-3.0sec2.0W-48h-5.0sec

    2.0W-48h-10sec2.0W-72h-3.0sec2.0W-72h-5.0sec2.0W-72h-10sec2.0W-72h-15sec 15-20%

    2.03.05.0W CWSP1SP2 15sec

    2.0W-48h-SP22.0W-72h-SP2

    2.03.05.0W

    P550499

  • 137

    1001

    1 23

    1 2 2 2 2 2 3 2

    Raised Temperature of Dentin Irradiated with FEL 1Department of Dental Caries Control and Aesthetic Dentistry, Nihon University Graduate School of Dentistry at

    Matsudo, 2Department of Dental Caries Control and Aesthetic Dentistry, Nihon University School of Dentistry at Matsudo,3Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo

    Nemoto Shogo1, Hirayama Satoshi2, Suzuki Hideaki2, Kamiya Naotaka2, Iwai Hirotoshi2, Iki Kohji2, Tanimoto Yasuhiro3, Ikemi Takuji2

    (FEL)FEL

    (Er:YAG) 1.5mm (2000) 2.94m FEL Er:YAG( TM) 3pps 5pps 3pps 200mJ/mm25pps 148mJ /mm2 Er:YAG (30A-P-SH-V1OPHIR) C400F 70mJ52mJ 50g Er:YAG ()()(TR-0506CMINOLTA) 5 5 (YL-500 : )SEM(S-2150 : ) 1. FEL 3pps 0.85 pps 2.2 0.41.12. Er:YAG 3pps 10.35pps 12.8 2.33.4

    3pps 3.25pps 3.7 2.22.4 3. SEM FEL Er:YAG Er:YAG

    3pps FEL Er:YAG 5pps FEL Er:YAG 2

    FEL Er:YAG

    P561001

  • 138

    1109

    2

    Analysis of Photocatalytic Effect of Anatase-Titanium dioxide (TiO2)

    Department of Endodontics and Operative Dentistry, Matsumoto Dental University

    Masahiro Sato Masaaki Anzai Akio Yamamoto Etsuo Kasahara

    2

    2

    2 01 21

    0121

    2 2 01 21

    10 01 21

    01 21 20

    01 21 00

    10 1

    1

    200 1000 2

    01 21 01 21

    01 21

    01 21

    P571109

  • 139

    1002

    CP ( 2 )

    1 2 3 4

    1 1 2 3 4 2 Precision Polishing of CP Titanium Castings for Dental Applications

    (2nd Report, Effect of Characteristics of Abrasive Grain) Faculty of Engineering, Tokyo City University1, Division of Operative Dentistry, Tohoku University Graduate School of Dentistry2, Lead Soken Co.3, Division of Periodontology and Endodontology, Tohoku University Graduate School

    of Dentistry4 A. KOGO1, H. SATO1, H. SATO2, Y. OYAIZU3, H. ISHIHATA4, M. KOMATSU2

    []

    CP CP

    CP

    3

    CP

    []

    JIS2 ()Autocast HC-(GC ) Selevest CB(Selec )()

    GC (SiC)WA

    (Al2O3)MD () 3 GC WA #1000 ( 11.5m)MD

    10-20m

    30 /min 20mm

    (F=1.96N) 5.2m/s Ra Rz

    1.0mRa

    []

    1 2 3

    Ra 0.24mRz 1.58m

    6 MD 3

    4 6

    Ra 0.24mRz 1.51m

    4 1

    2

    Ra (m) Rz (m) (mm3) (mm3)

    GC 0.9990.260 5.581.63 2.00 38.6 0.052

    WA 0.9770.246 5.151.72 2.22 23.9 0.093

    MD 0.8550.226 4.811.41 2.00 9.84 0.203

    1

    P581002

  • 140

    0499

    Clinical Investigation for Removing Method of Cemented Restorations To Shorten the Removing Time,

    and to Seek after the Convalescent Sureness and Minimal Damage for Patients

    Ouki Dental Clinic, Konishi Dental Clinic KONISHI Hidekazu, KONISHI Yasunari and KONISHI Toshiyasu

    21 5 21 7 31

    FG #1/2()

    (YDM)

    FG #1970()()(

    )(YDM)

    5

    [:25/26:18/18:18/18(:)] FG #1/2 #1970

    X

    P590499

  • 141

    0410

    NiTiThermafil Plus

    Influence of Canal Taper on the Removal of Thermafil Plastic Carriers UsingNi-Ti Rotary Files

    Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate

    School of Medical and Dental Sciences HAYAKAWA Tatsuya, TOMITA Fumihito, OKIJI Takashi

    Thermafil PlusDentsply Maillefer

    Thermafil Plus

    NiTi

    NiTi

    Thermafil Plus

    45 30, 19 .Zipperer 18.5mm K3

    (SybronEndo)#25/04 3 n = 15A

    B K#25/08 C K3 #25/12 1/3

    NTherma Prep

    Thermafil Plus (#25) 37 100% 2

    , NiTi (ProTaper Universal Retreatment

    D1,D2,D3;Dentsply Maillefer)Petit EndoDentsply) 500 rpm

    5.5 Ncm D1

    D2D3

    A 4.293.69 B 7.59

    2.33 C 9.534.25 A BC

    Bonferroni/Dunn 5A 1.060.26 B 1.93

    0.7 C 2.270.8

    Thermafil Plus

    ProTaper

    NiTi

    NiTi Thermafil Plus

    P600410

  • 142

    0410

    ErYAG

    Basic Study of Root Canal Preparation Using ErYAG Laser Irradiation

    Pulp Biology and Endodontics, Department of Restorative Sciences, Graduate School,

    Tokyo Medical and Dental University

    KOKUZAWA Chizuko, GOMBO Bolortuya , WATANABE Satoshi, SAEGUSA Hidetoshi, ANJO Tomoo,

    EBIHARA Arata, SUDA Hideaki

    ErYAG ErYAG

    ErYAG

    6 7 #15 6.5 mm #25

    ErYAG Ewin AdvErL() R135T: =190 m

    R200T: =280 m R135T 30mJ 10pps

    10 3 R135T-10secR135T-20secR135T-30sec

    R200T 10 3 R200T-10secR200T-20sec

    R200T-30ec 10 microCTSMX-90CT

    Photoshop 7.0Adobe m2

    Turkey-Kramer test 5%

    S-700HITACHI

    R200T 10

    (p

  • 143

    0410

    CT 1

    2 3 4

    1 1 1 2 3 3 4

    Endodontic Treatment of a Maillary Second Molar with Two Palatal oots

    Diagnosed y Dental Computed Tomography A Case eport 1Division of Comprehensive Dentistry, Tohoku University Dental Hospital, 2Division of Oral Diagnosis,

    3Division of Periodontology and Endodontology, 4Division of Operative Dentistry,

    Tohoku University Graduate School of Dentistry

    SHIMONISHI Mitsuru1, ENDOU Naoki1, SAITOU Shu1, IIKUBO Masahiro2, SHOJI Shigeru3,

    SHIMAUCHI Hidetoshi3, KOMATSU Masashi4

    % 1% 5% X

    CTThe 3D Accuitomo XYZ Slice View Tomograph

    CT

    X

    X

    CT

    CT

    1%

    X CT

    CT

    P620410

  • 144

    0410

    Pulp Biology and Endodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University.

    ISHIMURA Hitomi, SAKAUE Hitoshi, YOSHIOKA Takatomo, and SUDA Hideaki

    26 12 mm 2 24 8 A~C 3 6 % NaClO 6 % NaClO 14.3 % EDTA

    ()

    A .10() Canals N () .02 (GP) (GC)

    B .10() MetaSEALTM (Parkell, USA) .02 GP

    C .06 () MetaSEALTM .02 GP

    0.06 1,4,8,15,30 (630 nm) 0.2 ml Tukey-Kramer test 5 % 1 mm 30 A~C (p0.05, 2-way ANOVA)30 B (p0.05, Tukey-Kramer)A,B C

    C C B A B B A B

    P630410

  • 145

    1 ()

    0410

    Examination of advanced dental technology with CBCT and Dental Microscope in Periapical Surgery Pulp Biology and Endodontics, Department of Restorative Sciences,

    Graduate School, Tokyo Medical and Dental University. YOSHIOKA Takatomo, YAHATA Yoshio, NAKANO Kiwako, HANADA Takahiro, ISHIMURA Hitomi, KIKUCHI Izumi, SUZUKI Noriyuki, KAWASHIMA Nobuyuki, SUNAKAWA Mitsuhiro, SUDA Hideaki

    54%1)

    741)-792)% CT 83.3%2)2007

    2007 9 2009 5

    X CT 3DX Multi-image micro CT(

    3DX)

    69 (Opmi-picoZeiss)

    Super EBA (Bosworth,

    USA) 69 1

    X 51 68

    ()2( 6 5)

    X X 4

    5%

    47.8% 73.9%6 7.9% 34.2%

    (p

  • 146

    0410

    , , , , , ,

    Influence of various sealers on the sealin aility y roote