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患者,女,39岁,前牙深覆牙合,下前牙磨耗严重,33残冠,根管口处可见玻璃离子充填物,31牙冠短小,根管口处亦有充填物,32、41、42磨耗致切端牙本质外露,可见根管口影像,X线片示31、33已行根管治疗,31为双根管(图1)。处理:32、41、42局麻下开髓,均可见有颊舌向2个根管口,拔髓,疏通根管,ProTaper机扩至F2,根管交替冲洗,封药消毒后采用侧方加压技术严密充填根管(图2),磷酸锌水门汀封固。1周后进行冠修复。
Patients, female, 39 years old, anterior teeth deep over the occlusion, the lower anterior teeth wear, 33 residual crown, the root canal mouth glass ion filling material can be seen, 31 short crown, filling the root canal mouth, 32, 41,42 Abrasion caused by cutting the end of the dentine exposed, visible root canal imaging, X-ray film shows 31,33 have been treated root canal, 31 is a double root canal (Figure 1). Treatment: 32,41,42 under local anesthesia under the open pulp, can be seen to the 2 root canal buccal tongue, pulp, clear the root canal, ProTaper machine expanded to F2, alternating root canal irrigation, seal disinfection with the side Pressure technology closely packed root canal (Figure 2), zinc phosphate cement seal. One week after the crown repair.