CAJ | 학술논문

目的：评价牙冠延长术应用于前牙修复再治疗的疗效。方法：选择因前牙烤瓷修复后牙龈肿胀出血，要求重新修复治疗的患者45例（72个前牙）。基线检查后，拆除原有烤瓷冠，完善根管治疗及牙周基础治疗，然后行牙冠延长术。术后8周行永久性修复并进行牙周检查；术后8周、6个月、1、2年复诊，分别记录出血指数和探诊深度，并进行疗效分析。结果：术后各时间点牙周指数分别与术前相比，数值下降差异有统计学意义（P＜0．05）；各时间点牙周指数之间相比，差异无统计学意义（P＞0．05）。术后6个月、1、2年有效率分别与术后8周相比无统计学差异（P＞0．05），8周后各时间点有效率无统计学差异（P＞0．05）。结论：牙冠延长术用于前牙修复再治疗疗效良好。
목적：평개아관연장술응용우전아수복재치료적료효。방법：선택인전아고자수복후아간종창출혈，요구중신수복치료적환자45례（72개전아）。기선검사후，탁제원유고자관，완선근관치료급아주기출치료，연후행아관연장술。술후8주행영구성수복병진행아주검사；술후8주、6개월、1、2년복진，분별기록출혈지수화탐진심도，병진행료효분석。결과：술후각시간점아주지수분별여술전상비，수치하강차이유통계학의의（P＜0．05）；각시간점아주지수지간상비，차이무통계학의의（P＞0．05）。술후6개월、1、2년유효솔분별여술후8주상비무통계학차이（P＞0．05），8주후각시간점유효솔무통계학차이（P＞0．05）。결론：아관연장술용우전아수복재치료료효량호。
AIM:To evaluate the clinical effects of surgical crown lengthening in the re-treatment of anteri-or teeth restoration.METHODS:45 patients complaining of gum edema after anterior teeth restoration (72 teeth) were included.After baseline examination,the previous ceramic crowns were removed,root canal therapy and perio-dontal therapy were done as indicated.Then,surgical crown lengthening was performed.8 weeks after crown lengthe-ning,permanent restorations were made.Sulcus bleeding index (SBI)and probing depth (PD)were recorded at 8week,6month,1year and 2 year follow-up.RESULTS:Significantly lower values of SBI and PD were found at all time points post crown lengthening as compared with that of pre-surgery (P<0.05 ).No significant difference of the effectiveness was found among all time points 8week after re-treatment(P>0.05 ).CONCLUSION:Surgical crown lengthening is an effective method for the re-therapy of anterior teeth restoration.