目的寻找适合于口腔局部麻醉中骨膜下浸润麻醉、牙周膜内注射麻醉的一次性注射器,解决口腔科常用5m l长5号针头的一次性注射器在用于这两种麻醉时效果不佳的问题。方法选择诊断为急、慢性牙髓炎需做牙髓治疗200例、200颗牙,采用口腔科...目的寻找适合于口腔局部麻醉中骨膜下浸润麻醉、牙周膜内注射麻醉的一次性注射器,解决口腔科常用5m l长5号针头的一次性注射器在用于这两种麻醉时效果不佳的问题。方法选择诊断为急、慢性牙髓炎需做牙髓治疗200例、200颗牙,采用口腔科常用的5 m l长5号针头的一次性注射器和1 m l一次性无菌皮试注射器分成4组,分别进行骨膜下浸润麻醉、牙周膜内注射麻醉,比较这两种注射器在进行这两种麻醉方法时的麻醉效果。结果在这两种麻醉方法中,使用1 m l一次性无菌皮试注射器的患者麻醉效果明显优于使用5 m l长5号针头的一次性注射器,两者具有显著差异(P<0.005)。结论1 m l一次性无菌皮试注射器更适合用于口腔局部麻醉中骨膜下浸润麻醉和牙周膜内注射麻醉这两种方法。展开更多
Objective To evaluate the effectiveness and safety of a computer-controlled periodontal ligament （PDL） injection system to the local soft tissues as the primary technique in endodontic access to mandibular posteri...Objective To evaluate the effectiveness and safety of a computer-controlled periodontal ligament （PDL） injection system to the local soft tissues as the primary technique in endodontic access to mandibular posterior teeth in patients with irreversible pulpitis. Methods A total of 162 Chinese patients who had been diagnosed with irreversible pulpitis in their mandibular posterior teeth without acute infection or inflammation in the periodontal tissues were enrolled in this clinical study. The patients were divided into 3 groups according to the position of the involved tooth： the premolar group （PM, z2=38）, first molar group （FM, n=66）, and second molar group （SM, n=58）. All the patients received computer-controlled PDL injection with 4% articaine and 1 ＇ 100 000 epinephrine. Immediately after the injection, endodontic access was performed, and the degree of pain during the treatment was evaluated by the patients using Visual Analogue Scale for pain. The success rates were compared among the 3 groups. The responses of local soft tissues were evaluated 3-8 days and 3 weeks after the procedure. Results The overall success rate was 76.5%. There was a significant difference in success rates among the PM, FM, and SM groups （92.1%, 53.0%, 93.1%, respectively; 2 X =34.3, P〈0.01）. Both the PM and SM groups showed higher success rates than that of the FM group （v=l, f=16.73, P〈0.01, v=l, Z = 4.5, X2 2 P〈0.01）. No irreversible adverse effects on the periodontal soft tissues at the injection sites were observed in the follow-up visits in any of the groups. Conclusion The computer-controlled PDL injection system demonstrates both satisfactory anesthetic effects and safety in local soft tissues as primary anesthetic technique in endodontic access to the mandibular posterior teeth in patients with irreversible pulpitis.展开更多
文摘目的寻找适合于口腔局部麻醉中骨膜下浸润麻醉、牙周膜内注射麻醉的一次性注射器,解决口腔科常用5m l长5号针头的一次性注射器在用于这两种麻醉时效果不佳的问题。方法选择诊断为急、慢性牙髓炎需做牙髓治疗200例、200颗牙,采用口腔科常用的5 m l长5号针头的一次性注射器和1 m l一次性无菌皮试注射器分成4组,分别进行骨膜下浸润麻醉、牙周膜内注射麻醉,比较这两种注射器在进行这两种麻醉方法时的麻醉效果。结果在这两种麻醉方法中,使用1 m l一次性无菌皮试注射器的患者麻醉效果明显优于使用5 m l长5号针头的一次性注射器,两者具有显著差异(P<0.005)。结论1 m l一次性无菌皮试注射器更适合用于口腔局部麻醉中骨膜下浸润麻醉和牙周膜内注射麻醉这两种方法。
文摘Objective To evaluate the effectiveness and safety of a computer-controlled periodontal ligament （PDL） injection system to the local soft tissues as the primary technique in endodontic access to mandibular posterior teeth in patients with irreversible pulpitis. Methods A total of 162 Chinese patients who had been diagnosed with irreversible pulpitis in their mandibular posterior teeth without acute infection or inflammation in the periodontal tissues were enrolled in this clinical study. The patients were divided into 3 groups according to the position of the involved tooth： the premolar group （PM, z2=38）, first molar group （FM, n=66）, and second molar group （SM, n=58）. All the patients received computer-controlled PDL injection with 4% articaine and 1 ＇ 100 000 epinephrine. Immediately after the injection, endodontic access was performed, and the degree of pain during the treatment was evaluated by the patients using Visual Analogue Scale for pain. The success rates were compared among the 3 groups. The responses of local soft tissues were evaluated 3-8 days and 3 weeks after the procedure. Results The overall success rate was 76.5%. There was a significant difference in success rates among the PM, FM, and SM groups （92.1%, 53.0%, 93.1%, respectively; 2 X =34.3, P〈0.01）. Both the PM and SM groups showed higher success rates than that of the FM group （v=l, f=16.73, P〈0.01, v=l, Z = 4.5, X2 2 P〈0.01）. No irreversible adverse effects on the periodontal soft tissues at the injection sites were observed in the follow-up visits in any of the groups. Conclusion The computer-controlled PDL injection system demonstrates both satisfactory anesthetic effects and safety in local soft tissues as primary anesthetic technique in endodontic access to the mandibular posterior teeth in patients with irreversible pulpitis.
