Risnes Steinar, Khan Qalbi, Hadler-Olsen Elin, Sehic Amer
Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway.
Department of Medical Biology, Faculty of Health Sciences, University of Tromsø - The Arctic University of Norway, Tromsø, Norway.
Eur J Dent Educ. 2019 Feb;23(1):62-67. doi: 10.1111/eje.12403. Epub 2018 Nov 13.
The present report outlines a method of teaching/learning tooth morphology by tooth identification puzzle.
Students are presented with sets of extracted human teeth comprising complete dentitions except deciduous incisors and canines. The task is to place the teeth in correct positions in a schematic dentition diagram. The course, including 2-3 introductory lectures and a final test of one hour, has a time frame of 14-16 hours. A total of 506 2nd year students from several years participated.
The course is much appreciated by the students who experience a marked progress in skills. In the final test, 51.8% of the students had no faults, whilst 3% failed (more than 12 faults). The average number of faults per student was 2.3. Of the 20 240 positioned teeth 5.7% were misplaced. The most frequently misplaced teeth were mandibular central incisors, maxillary second premolars and mandibular first premolars. The most common type of fault was inside determination.
The course is cost-effective and facilitates learning through its multifaceted activity with involvement of many senses. An important asset is the appreciation of variations in tooth morphology. The course provides an arena for close and positive interaction between students and teachers.
本报告概述了一种通过牙齿识别拼图来教授/学习牙齿形态学的方法。
向学生提供几组拔除的人类牙齿，这些牙齿构成了完整的牙列，但不包括乳牙切牙和尖牙。任务是将牙齿放置在牙列示意图的正确位置。该课程包括2 - 3次入门讲座和一次一小时的期末考试，时间框架为14 - 16小时。共有来自几年的506名二年级学生参与。
该课程深受学生喜爱，他们在技能方面有显著进步。在期末考试中，51.8%的学生没有错误，而3%的学生不及格（超过12处错误）。每个学生的平均错误数为2.3。在20240颗已放置的牙齿中，5.7%被放错位置。最常放错位置的牙齿是下颌中切牙、上颌第二前磨牙和下颌第一前磨牙。最常见的错误类型是内部定位错误。
该课程具有成本效益，通过涉及多种感官的多方面活动促进学习。一个重要的优点是对牙齿形态变异的认识。该课程为学生和教师之间密切而积极的互动提供了一个平台。
