メインテナンスケアが可撤性部分床義歯装着患者の残存歯歯周組織の状態におよぼす影響  [in Japanese] The Difference Between Baseline and 5-year Examinations at Recall in PCR, PD, Tooth Mobility, and BRL of Abutment Teeth in Subjects Who Had Received Periodic Maintenance Care More Than 4 Times per Year  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 花渕 静 HANABUCHI Shizuka
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
    • 冨士 岳志 FUJI Takeshi
    • 東北大学病院歯科部門顎口腔再建治療部 Maxillofacial Prosthetics Clinic, Tohoku University Hospital
    • 伊奈 慶典 INA Yoshinori
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
    • 依田 信裕 YODA Nobuhiro
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
    • 塙 総司 HANAWA Soshi
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
    • 横山 政宣 YOKOYAMA Masayoshi
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
    • 佐々木 啓一 SASAKI Keiichi
    • 東北大学大学院歯学研究科口腔システム補綴学分野 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry

Abstract

<b>目的:</b>可撤性部分床義歯(RPD)装着患者に対するメインテナンスケア頻度の相違が残存歯歯周組織の状態に与える影響を明らかにすることを目的とした.<br><b>方法:</b>平成8年から平成17年までにRPDを装着し,約5年が経過した患者108名をリコール調査したなかで,RPDを継続使用しメインテナンスケアを受けた患者34名を対象とした.リコール調査までの間に1年に4回以上のメインテナンスケアを経験した患者群14名の135歯の残存歯,リコール調査までの間に1年に3回以下のメインテナンスケアを経験した患者群20名の185歯の残存歯について後ろ向きコホート研究にて比較検討を行った.調査項目は,支台歯および非支台歯についてRPD装着時とリコール調査時における1)O’Learyの Plaque Control Record(PCR),2)歯周ポケット深さ,3)Millerの動揺度,4)歯槽骨吸収度とした.<br><b>結果:</b>PCR,ポケット深さ,動揺度および歯槽骨吸収度をRPD装着時とリコール時で比較すると,メインテナンスケアが年4回以上の群の支台歯においては4項目とも有意な変化は観察されず,非支台歯ではポケット深さおよび動揺度が改善していた.一方,3回以下の群の支台歯においてはPCR,ポケット深さおよび歯槽骨吸収度が有意に悪化し,非支台歯ではPCR,ポケット深さおよび歯槽骨吸収度が有意に悪化し,動揺度のみが改善していた.<br><b>結論:</b>メインテナンスケアが年4回以上の群では支台歯歯周組織の健康維持に有効であった.

<b>Purpose:</b> The purpose of this retrospective cohort study was to investigate the effect of maintenance care on periodontal conditions of abutment and non-abutment teeth at 5-year follow-up.<br><b>Methods:</b> A total of 231 one patients were treated with rempval partial dentures (RPDs) at the Tohoku University Hospital from 1996 to 2005. Of the 231 patients, 108 who had agreed to undergo 5-year follow-up were examined. The RPD prognoses were categorized into three categories: successful (n = 63), remake (n = 35), and failure (n = 14). Among the successful subjects, 34 patients who received periodic maintenance were selected as study subjects and divided into two groups, M ≥ 4 (subjects who received periodic maintenance more than 4 times per year), and M ≤ 3 (received periodic maintenance 3 or fewer times per year). The variables analyzed were (1) O’Leary’s Plaque Control Record (PCR), (2) Pocket depth (PD), (3) Miller’s tooth mobility (TM), and (4) Bone resorption level (BRL). Periodontal conditions of remaining teeth at the follow-up clinical examination were compared with the results of the first examination when RPDs were inserted by using the Wilcoxon signed rank test.<br><b>Results:</b> In the M ≥ 4 group, significant differences were not found in the 4 variables of the abutment teeth. However, non-abutment teeth showed significant improvement in PD and TM between the time of placement and 5 years later. In the M ≤ 3 group, the abutment and non-abutment teeth showed statistically significant deterioration in PCR, PD, and BRL, whereas significant improvement was found in the non-abutment teeth.<br><b>Conclusions:</b> Maintenance care more than 4 times per year was effective to maintain good periodontal conditions for the wearers of PRDs.

Journal

  • Annals of Japan Prosthodontic Society

    Annals of Japan Prosthodontic Society 4(1), 59-67, 2012-01-10

    Japan Prosthodontic Society

References:  36

Codes

  • NII Article ID (NAID)
    10030447483
  • NII NACSIS-CAT ID (NCID)
    AA12374568
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    18834426
  • Data Source
    CJP  J-STAGE 
Page Top