Root-end sealing of adhesive resin

粘合树脂根端密封

• 批准号: 13470401
• 负责人: SUGAYA Tsutomu
• 金额: $ 2.82万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13470401/
• 关键词: 4-META; MMA-TBB resin; root-end sealing; retrograde filling; adhesion; leakage; apicoectomy; periapical periodontitis; 根尖性歯周炎; アマルガム; 強化型ユージノールセメント; MMA-TBB レジン; root-end seal; 色素漏洩; 接着強さ; 接着耐久性; 微小引っ張り強さ; セメント質; root-end sealant

In the case of the presence of bacteria in the root canals, it is necessary that retrograde filling following periapical surgery prevent the leakage of bacteria from root canals into periapical tissues. The purpose of first study was to evaluate the adhesion of 4-META/MMA-TBB resin to cementum. The micro-tensile bond strength and the leakage levels obtained for the cementum were almost equal to those for the dentin, and no significant difference in durability of adhesion was recognized between dentin and cementum. The purpose of second study was to evaluate that the dye leakage from root canal after root-end sealing using 4-META/MMA-TBB resin. Root-end sealing using 4-META/MMA-TBB resin performed better sealing for long term than retrograde root filling by reinforced zinc oxide-eugenol cement or high copper amalgam alloy. The purpose of third study was to evaluate inflammation at the surfaces of 4-META/MMA-TBB resin cured under various conditions. The results showed that the area of inflammatory connective tissue around the resin cured by exposure to air was larger than that cured by using a strip for air barrier and polished after curing. Thus, the curing conditions of 4-META/MMA-TBB resin influenced biocompatibility. The purpose of fourth study was to evaluate the healing after root-end sealing compared with conventional technique of retrograde root filling following intentional replantation. The bone healing after root-end sealing using 4-META/MMA-TBB resin was better than retrograde root filling using reinforced zinc oxide-eugenol cement, and the bone defect after retrograde using high copper amalgam alloy was observed. The purpose of fifth study was to evaluate the healing after root-end sealing using 4-META/MMA-TBB resin following apicoectomy. The bone regeneration was remarkable and the normal space of the periodontal ligament was observed. It could be concluded that root-end sealing using 4-META/MMA-TBB rein has a better potential in periapical surgery.

如果根管中存在细菌，则有必要在根尖周手术后逆行填充，以防止细菌从根管渗漏到根尖周组织中。第一项研究的目的是评估4-META/MMA-TBB树脂与牙骨质的粘附性。牙本质与牙本质的微拉伸粘结强度和渗漏水平基本相等，牙本质与牙本质的粘接耐久性无显著差异。第二项研究的目的是评估4-META/MMA-TBB树脂根端密封后染料从根管泄漏的情况。采用4-META/MMA-TBB树脂进行根端充填的长期充填效果优于采用增强氧化锌-丁香酚水泥或高铜汞合金进行逆行根端充填。第三项研究的目的是评估在不同条件下固化的4-META/MMA-TBB树脂表面的炎症。结果表明，空气固化后树脂周围的炎性结缔组织面积比空气阻隔条固化后抛光的树脂周围的结缔组织面积大。因此，4-META/MMA-TBB树脂的固化条件会影响其生物相容性。第四项研究的目的是评估根端密封与传统的逆行根充填技术在有意再植后的愈合效果。4-META/MMA-TBB树脂根端封闭后的骨愈合优于增强氧化锌-丁香酚水泥逆行根充填，并观察高铜汞合金逆行修复后的骨缺损情况。第五项研究的目的是评估根尖切除术后使用4-META/MMA-TBB树脂进行根端密封后的愈合情况。骨再生明显，牙周韧带间隙正常。由此可见，4-META/MMA-TBB rein在根尖周围手术中具有更好的应用潜力。

项目成果

菅谷 勉: "歯根端切除時に4-META/MMA-TBBレジンをroot-end sealantとして用いた場合の臨床成績"日本歯科保存学雑誌. 45・1. 62-67 (2002)

Tsutomu Sugaya：“根端切除术中使用 4-META/MMA-TBB 树脂作为根端密封剂时的临床结果”日本保守牙科杂志 45・1（2002 年）。

Y.TANAKA: "Durability of Adhesion between 4-META/MMA-TBB Resin and Cementum"Dental Materials Journal. 23(印刷中). (2004)

Y.TANAKA：“4-META/MMA-TBB 树脂和牙骨质之间的粘合耐久性”《牙科材料杂志》23（出版中）。

T.SUGAYA: "Prognosis of Periradicular Surgery using 4-META/MMA-TBB Resin as Root-end sealant"Journal of Dental Research. 82・suppl. 117 (2003)

T.SUGAYA：“使用 4-META/MMA-TBB 树脂作为根端密封剂的根尖周手术的预后”《牙科研究杂志》82・增刊 117（2003 年）。

菅谷 勉ほか: "スーパーボンドC&Bを用いたroot-end sealingの臨床"日本歯科評論. 63・10. 131-140 (2003)

Tsutomu Sugaya 等人：“使用 Superbond C&B 进行根端封闭的临床实践”日本牙科评论 63・10（2003 年）。

菅谷 勉: "スーパーボンドC&Bを用いたroot-end sealingの臨床"日本歯科評論. 63・10. 131-140 (2003)

Tsutomu Sugaya：“使用 Superbond C&B 进行根端封闭的临床实践”日本牙科评论 63・10（2003 年）。