Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago. Dunedin 9054, New Zealand.
Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago. Dunedin 9054, New Zealand.
J Dent. 2019 May;84:36-43. doi: 10.1016/j.jdent.2019.01.005. Epub 2019 Jan 25.
To investigate current teaching and operative techniques of posterior composite restorations in dental schools in Oceania (Australia, New Zealand, Fiji and Papua New Guinea).
A 24-item validated questionnaire including closed and open questions was mailed to the Heads of Department of Operative/Restorative Dentistry in 16 dental schools. Responses were compiled in Excel and analyzed.
The response rate of this study was of 94% (n = 15). All respondent schools taught the use of posterior composites for occlusal and occluso-proximal cavities in premolars and molars. The mean percentage of preclinical teaching devoted to composites was greater than for amalgam (39% vs 29%). This proportion was anticipated to be 3:1 for posterior composite/amalgam in five years' time. Most posterior restorations placed by students are composites (average 64%, ranging from 10 to 100%), with amalgam representing 19.5% of the restorations placed (ranging from 0%-50%). Slot-type cavities were the preparation techniques most commonly taught (80%) and most schools (67%) teach the mandatory use of rubber dam for moisture control. The most common contraindication to composite placement (67% of the schools) was a history of adverse reaction to composites. The phase down of teaching and use of amalgam in Oceania is expected to occur within 8-10 years.
Despite minimally invasive approaches becoming increasingly common worldwide, the use of amalgam is still taught in Oceania. Future studies should assess whether the clinical teaching of posterior composites is in keeping with material development and trends in mainstream dental practice.
调查大洋洲（澳大利亚、新西兰、斐济和巴布亚新几内亚）牙科学校中后牙复合树脂修复的教学和操作技术现状。
向 16 所牙科学校的口腔修复/操作系主任邮寄了一份包含封闭式和开放式问题的 24 项验证调查问卷。以 Excel 形式汇总答复并进行分析。
本研究的回复率为 94%（n=15）。所有参与调查的学校都教授在后牙的颌面和邻颌面窝洞使用后牙复合树脂。用于临床前教学的复合材料的平均百分比大于汞合金（39%比 29%）。预计在未来五年内，复合材料与汞合金的临床应用比例将达到 3:1。学生所做的大多数后牙修复都是复合材料（平均 64%，范围为 10%至 100%），汞合金占所做修复的 19.5%（范围为 0%至 50%）。槽型洞是最常教授的预备技术（80%），大多数学校（67%）都教授必须使用橡皮障来控制水分。复合材料放置的最常见禁忌症是（67%的学校）对复合材料有不良反应史。在大洋洲，教学和使用汞合金的比例预计将在 8-10 年内逐渐下降。
尽管微创方法在全球范围内越来越普遍，但在大洋洲仍在教授使用汞合金。未来的研究应评估后牙复合树脂的临床教学是否与材料发展和主流牙科实践的趋势保持一致。
