CAJ | 학술논문

目的：评价2种直径 Osstem MS 一段式种植体用于下前牙小间隙种植修复的临床效果。方法：回顾性研究对85名下前牙缺失患者行直径2．5 mm 和3．0 mm 2种 Osstem MS 一段式种植体种植修复的临床效果。观察分析种植体功能负载12个月和24个月时种植体近、远中边缘骨高度变化和周围软组织情况。采用 Wheeler 存留标准评估种植体存留率。结果：85例患者132枚 Osstem MS 一段式种植体存留率为100％；直径2．5 mm（n ＝66）和3．0 mm（n ＝66）种植体功能负载12个月后近中边缘骨高度（mm）变化分别为0．275±0．638和0．098±0．319，远中边缘骨高度变化分别为0．360±0．588和0．109±0．323；24个月后近中分别为0．299±0．672和0．099±0．318，远中分别为0．381±0．581和0．107±0．319；3．0 mm 相对2．5 mm 直径种植体在功能负载12个月和24个月后近远中边缘骨吸收程度较小（P ＜0．05），同一直径种植体植入后12个月和24个月边缘骨高度变化不明显（P ＞0．05）。未发现种植体周围相关软组织并发症。结论：Osstem MS 一段式种植体用于下前牙小间隙种植修复均可以取得功能和美学上良好的临床效果，直径3．0 mm 较2．5 mm 种植体边缘骨吸收程度更小。
목적：평개2충직경 Osstem MS 일단식충식체용우하전아소간극충식수복적림상효과。방법：회고성연구대85명하전아결실환자행직경2．5 mm 화3．0 mm 2충 Osstem MS 일단식충식체충식수복적림상효과。관찰분석충식체공능부재12개월화24개월시충식체근、원중변연골고도변화화주위연조직정황。채용 Wheeler 존류표준평고충식체존류솔。결과：85례환자132매 Osstem MS 일단식충식체존류솔위100％；직경2．5 mm（n ＝66）화3．0 mm（n ＝66）충식체공능부재12개월후근중변연골고도（mm）변화분별위0．275±0．638화0．098±0．319，원중변연골고도변화분별위0．360±0．588화0．109±0．323；24개월후근중분별위0．299±0．672화0．099±0．318，원중분별위0．381±0．581화0．107±0．319；3．0 mm 상대2．5 mm 직경충식체재공능부재12개월화24개월후근원중변연골흡수정도교소（P ＜0．05），동일직경충식체식입후12개월화24개월변연골고도변화불명현（P ＞0．05）。미발현충식체주위상관연조직병발증。결론：Osstem MS 일단식충식체용우하전아소간극충식수복균가이취득공능화미학상량호적림상효과，직경3．0 mm 교2．5 mm 충식체변연골흡수정도경소。
Objective:To assess the clinical efficacy of two different diameter Osstem MS one-stage implant restoration of small edentu-lous space in the mandibular anterior region.Methods:85 patients were treated by Osstem MS one-stage implant with the diameter of 2.5 mm(n =66)and 3.0 mm(n =66)respectively for the restoration of small edentulous space in mandibular anterior region.The mesi-al and distal marginal bone level and soft tissue were statistically analyzed after 1 2 and 24 months of functional load.The implant survival rate was evaluated according to Wheeler's survival criteria.Results:The survival rate of the implants was 1 00%.The mean changes in marginal bone level(mm)on the mesial side of 2.5 mm and 3.0 mm diameter implants were 0.275 ±0.638 and 0.098 ±0.31 9,distal aspects were 0.360 ±0.588 and 0.1 09 ±0.323 after 1 2 months of functional load;while 0.299 ±0.672 and 0.099 ±0.31 8,0.381 ± 0.581 and 0.1 07 ±0.31 9 after 24 months of functional load.The mesial and distal marginal bone loss of 2.5 mm diameter implant was greater than that of 3.0 mm after 1 2 and 24 months of functional load(P <0.05).No significant change on the marginal bone level was found aomog the same diameter implants from 1 2 to 24 month observation(P >0.05).No relevant complication of peri-implant soft tissue was shown.Conclusion:Favorable clinical effects including function and aesthetics can be achieved by Osstem MS one-stage implant with the diameter of 2.5 mm or 3.0 mm for the restoration of small edentulous space in the mandibular anterior region,however,the mar-ginal bone loss was greater around 2.5 mm diameter implant.