不同材料对年轻恒牙根尖诱导成形术的疗效观察  

Clinical effects of different apexification materials for injuried young permanent incisors with pulp necrosis

作　　者：刘波[1] 周妮[1] 吕长海[1] 张丽菊[1] 冯汝舟 张栩[1] 

机构地区：[1]昆明医科大学附属口腔医院口腔预防-儿童牙科,云南昆明650031

出　　处：《牙体牙髓牙周病学杂志》2015年第4期251-253,共3页Chinese Journal of Conservative Dentistry

基　　金：云南省教育厅基金(601110210246)

摘　　要：目的：观察Vitapex、氢氧化钙、MTA对外伤后牙髓坏死年轻恒牙根尖诱导闭合、根尖封闭的疗效。方法：选择外伤后牙髓坏死的年轻上颌中切牙62例（根尖均为喇叭口状，根形成1／2～2／3）进行回顾性临床研究，其中Vitapex根尖诱导封闭35例，氢氧化钙根尖诱导封闭22例，MTA根尖诱导封闭5例，追踪2年观察根尖闭合情况。结果：2年内Vitapex组均可见内聚和钙化根尖闭合；氢氧化钙组中13例根尖钙化闭合，但钙化物的致密度低于Vitapex组，9例在3个月内出现根外吸收；MTA组3个月均可见根尖明显钙化物沉积。结论：Vitapex、MTA作为牙髓坏死年轻恒牙根尖成形闭合诱导剂效果优于氢氧化钙。AIM：To observe the apex closure effects of Vitapex,calcium hydroxide and MTA in the treat-ment of injuried permanent maxillary incisors with pulp necrosis.METHODS：62 injuried young permanent maxillary incisors with pulp necrosis were treated by apexification with Vitapex （n=35）,calcium hydroxide （n=22）and MTA （n=5 ）respectively and were followed up for 2 years.RESULTS：In Vitapex group all cases showed apex closure.In calcium hydroxide group,13 cases showed apex closure but the density of calcified tissue was less as compared with that in Vitapex group at 24 m follow-up,apex resorption was found in 9 cases.In MTA group,all 5 cases showed dep-osition of calcified tissre at apex.CONCLUSION：Vitapex and MTA are effective for apexification in the treatment of injuried young permanent teeth with pulp necrosis.

关 键 词：VITAPEX 氢氧化钙 MTA 牙外伤年轻恒牙 牙髓坏死 根尖封闭 

分 类 号：R781.3[医药卫生—口腔医学]