Michaelson P L, Holland G R
Division of Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
Int Endod J. 2002 Oct;35(10):829-32. doi: 10.1046/j.1365-2591.2002.00579.x.
To determine whether inflamed dental pulps progress to necrosis without pain.
Records of 2,202 maxillary anterior teeth endodontically treated at the University of Michigan were collected. Records of teeth presenting with periapical radiolucencies but no response to vitality tests were examined further to determine, from the history, whether the patient had experienced pain or no pain from the involved tooth.
Approximately 40% of the teeth included gave no history of spontaneous or prolonged pain to a thermal stimulus. No statistically significant differences in the incidence of 'painless pulpitis' were related to either gender or tooth type. Patients aged >53 years experienced 'painless pulpitis' more often than patients <33 years.
Many teeth appear to progress to pulpal necrosis without the patient experiencing pain attributable to the pulp.
确定发炎的牙髓是否会在无疼痛的情况下发展为坏死。
收集了在密歇根大学接受牙髓治疗的2202颗上颌前牙的记录。对那些根尖周出现透射区但对活力测试无反应的牙齿记录进行进一步检查，以便根据病史确定患者所涉及的牙齿是否经历过疼痛或无疼痛。
纳入研究的牙齿中约40%没有自发疼痛史或对热刺激无长时间疼痛史。“无痛性牙髓炎”的发生率在性别或牙齿类型方面无统计学显著差异。年龄>53岁的患者比<33岁的患者更常出现“无痛性牙髓炎”。
许多牙齿似乎会发展为牙髓坏死，而患者并未经历牙髓引起的疼痛。
