中华口腔医学研究杂志（电子版）
中華口腔醫學研究雜誌（電子版）
중화구강의학연구잡지（전자판）
CHINESE JOURNAL OF STOMATOLOGICAL RESEARCH(ELECTRONIC VERSION)
2014年
5期
398-400
,共3页
牙本质粘接剂%牙本质封闭%牙本质敏感
牙本質粘接劑%牙本質封閉%牙本質敏感
아본질점접제%아본질봉폐%아본질민감
Dentin bonding agent%Immediate dentin sealing%Dentin hypersensitivity
目的评价牙本质即刻封闭技术对牙体预备后活髓基牙牙本质敏感程度的影响。方法30例患者行后牙三单位固定义齿修复，每例口内有2颗活髓后牙参与实验，基牙随机分为实验组和对照组。实验组在基牙预备后行即刻牙本质封闭，随后取模。对照组在基牙预备后常规取模，不进行即刻牙本质封闭。1周后行最终修复，全冠粘接后1周、1个月、6个月、12个月和18个月时检查记录患者的牙本质敏感程度，并进行统计学分析。结果固定义齿粘接后1周及1个月，实验组出现敏感基牙数少于对照组（1周：Z＝－1.88，P＝0.03；1个月：Z＝－2.15，P＝0.02）。粘接后6、12及18个月两组敏感发生率间差异无统计学意义（6个月：Z＝－0.69，P＝0.30；12个月：Z＝－0.41， P＝0.69；18个月：Z＝－0.42，P＝0.52）。比较两组敏感程度结果显示，实验组敏感的基牙，敏感程度主要为1度；对照组主要为1度及2度。1周及1个月观察点两组疼痛程度差异有统计学意义（1周：P＜0.05，1个月P＝0.027）。结论活髓基牙牙体预备后行即刻牙本质封闭，可有效降低术后短期内牙本质过敏的发生率，减小患者的术后不适感。
目的評價牙本質即刻封閉技術對牙體預備後活髓基牙牙本質敏感程度的影響。方法30例患者行後牙三單位固定義齒脩複，每例口內有2顆活髓後牙參與實驗，基牙隨機分為實驗組和對照組。實驗組在基牙預備後行即刻牙本質封閉，隨後取模。對照組在基牙預備後常規取模，不進行即刻牙本質封閉。1週後行最終脩複，全冠粘接後1週、1箇月、6箇月、12箇月和18箇月時檢查記錄患者的牙本質敏感程度，併進行統計學分析。結果固定義齒粘接後1週及1箇月，實驗組齣現敏感基牙數少于對照組（1週：Z＝－1.88，P＝0.03；1箇月：Z＝－2.15，P＝0.02）。粘接後6、12及18箇月兩組敏感髮生率間差異無統計學意義（6箇月：Z＝－0.69，P＝0.30；12箇月：Z＝－0.41， P＝0.69；18箇月：Z＝－0.42，P＝0.52）。比較兩組敏感程度結果顯示，實驗組敏感的基牙，敏感程度主要為1度；對照組主要為1度及2度。1週及1箇月觀察點兩組疼痛程度差異有統計學意義（1週：P＜0.05，1箇月P＝0.027）。結論活髓基牙牙體預備後行即刻牙本質封閉，可有效降低術後短期內牙本質過敏的髮生率，減小患者的術後不適感。
목적평개아본질즉각봉폐기술대아체예비후활수기아아본질민감정도적영향。방법30례환자행후아삼단위고정의치수복，매례구내유2과활수후아삼여실험，기아수궤분위실험조화대조조。실험조재기아예비후행즉각아본질봉폐，수후취모。대조조재기아예비후상규취모，불진행즉각아본질봉폐。1주후행최종수복，전관점접후1주、1개월、6개월、12개월화18개월시검사기록환자적아본질민감정도，병진행통계학분석。결과고정의치점접후1주급1개월，실험조출현민감기아수소우대조조（1주：Z＝－1.88，P＝0.03；1개월：Z＝－2.15，P＝0.02）。점접후6、12급18개월량조민감발생솔간차이무통계학의의（6개월：Z＝－0.69，P＝0.30；12개월：Z＝－0.41， P＝0.69；18개월：Z＝－0.42，P＝0.52）。비교량조민감정도결과현시，실험조민감적기아，민감정도주요위1도；대조조주요위1도급2도。1주급1개월관찰점량조동통정도차이유통계학의의（1주：P＜0.05，1개월P＝0.027）。결론활수기아아체예비후행즉각아본질봉폐，가유효강저술후단기내아본질과민적발생솔，감소환자적술후불괄감。
Objective To evaluate the effect of immediate dentin sealing on the prevention of dentin hypersensitivity after crown restoration . Methods Thirty patients received 30 posterior three-unit bridge fixed restorations. Two vital abutment teeth in each patient were allocated randomly into experiment or control groups. Teeth in experiment group (30 teeth) were coated by dentin bonding agent (single bondⅡ) immediately after tooth preparation before making the impression . In control group (30 teeth), impression was made directly after tooth preparationwithout dentine bonding agent coating . After final restoration cementation, post-operative sensitivity was recorded at baseline (1 week after the insertion) and for recall periods at 1, 6, 12 and 18 months. Results Teeth sensitivity in the experiment group were significantly less than those in the control group at 1 week and 1 month after cementation (1 week Z = -1.88,P = 0.03;1 month Z = -2.15, P = 0.02), whereas there was no significant difference between the two groups at the end of 6, 12, and 18 months. Scores for teeth sensitivity in experiment group were lower than those in group control , at 1 week and 1 month after cementation (1 week P<0.001,1 month P=0.027). Conclusions The effect of dentin bonding agent in the prevention of dentin hypersensitivity after fixed bridge restoration is significant . In our clinical trail, sealingthe abutmenttooth surface immediately after tooth preparation can effectively reduce the abutment hypersensitivity and reduce the patient discomfort .
