Berntsen Christian, Kleven Martin, Heian Marianne, Hjortsjö Carl
Department of Prosthodontics, Faculty of Dentistry, University of Oslo, Oslo, Norway.
Tannlab Dental Laboratory, Oslo, Norway.
Acta Biomater Odontol Scand. 2018 Aug 13;4(1):81-89. doi: 10.1080/23337931.2018.1497491. eCollection 2018.
The aim of this study was to compare conventional and digital additive manufacturing of hard occlusal stabilization splints (SS) using technical and clinical parameters. 14 subjects were subjected to DC/TMD Axis I clinical examination protocol and Axis II questionnaire. The subjects underwent treatment with splints over a period of 12 weeks. All subjects underwent both conventional alginate impression and intraoral digital scanning. Seven subjects received conventional manufactured stabilization splints (CM-SS), and seven subjects received CAD-CAM additive manufactured stabilization splints (AM-SS). 12 subjects completed the 12 weeks follow-up period. The subjects significantly preferred digital intraoral scanning compared to conventional alginate impression. There was a significant difference in VAS between CM-SS and AM-SS. The mean VAS result was 15 for AM-SS and 42 for CM-SS, 0 represented excellent comfort and 100 very uncomfortable. This was significant. Splint manufacturing method had no influence on treatment outcome. There was no significant difference in mean delta change for unassisted jaw opening from baseline to 12 weeks between the two groups, for CM-SS it was 2 mm difference and for AM-SS the difference was 3 mm. All subjects in both treatment groups showed improved oral function. In this study, the scanning procedure is more accepted by the subjects than alginate impressions, however the first procedure was more time consuming.
本研究的目的是使用技术和临床参数比较硬质咬合稳定夹板（SS）的传统制造和数字增材制造。14名受试者接受了DC/TMD轴I临床检查方案和轴II问卷调查。受试者在12周的时间内接受夹板治疗。所有受试者均接受了传统藻酸盐印模和口腔内数字扫描。7名受试者接受了传统制造的稳定夹板（CM-SS），7名受试者接受了CAD-CAM增材制造的稳定夹板（AM-SS）。12名受试者完成了12周的随访期。与传统藻酸盐印模相比，受试者明显更喜欢口腔内数字扫描。CM-SS和AM-SS之间的视觉模拟评分（VAS）存在显著差异。AM-SS的平均VAS结果为15，CM-SS为42，0表示极佳的舒适度，100表示非常不舒服。这具有显著性。夹板制造方法对治疗结果没有影响。两组从基线到12周的无辅助张口平均变化差值无显著差异，CM-SS的差值为2毫米，AM-SS的差值为3毫米。两个治疗组的所有受试者口腔功能均有改善。在本研究中，扫描程序比藻酸盐印模更受受试者接受，然而第一种程序耗时更长。
