van der Sanden Wil J M, Mettes Dirk G, Plasschaert Alphons J M, Mulder Jan, Verdonschot Emiel H
Department of Cariology and Endodontology, College of Dental Sciences, University Medical Centre Nijmegen, Centre for Quality of Care Research (WOK), The Netherlands.
Eur J Dent Educ. 2004 Feb;8(1):1-6. doi: 10.1111/j.1600-0579.2004.00332.x.
The aim of this study was to assess the effect of the provision of a clinical practice guideline (CPG) on dental students' decisions to remove asymptomatic, impacted lower third molars. All dental students, who in 2001 were in the 3rd, 4th or 5th (final) year of their study at the Nijmegen College of Dental Sciences, were invited to participate. A pre-test-post-test control group design was used. Given 36 patient cases, all dental students were asked to assess the need for removal of asymptomatic, impacted lower third molars. All pre-test respondents were randomly allocated to the control or intervention group. After the provision of a CPG to the intervention group, both groups were asked to assess the same cases again. Frequencies of decisions to remove the third molars were calculated. Chi-square tests and anova were used to test the influence of study year and gender on the drop-out rate and on the effect of the provision of a CPG on students' treatment decisions. The decrease in indications to remove third molars by the intervention group was statistically significant (P < 0.05). In the control group, no significant decrease was observed. It was concluded that the provision of a CPG significantly influences dental students' decision making about treatment in a third-molar decision task. Students who used the CPG showed more guideline-conformed decision making.
本研究的目的是评估提供临床实践指南（CPG）对牙科学生决定拔除无症状的下颌阻生第三磨牙的影响。邀请了2001年在奈梅亨牙科学院就读三年级、四年级或五年级（最后一年）的所有牙科学生参与。采用了前测-后测对照组设计。给所有牙科学生提供36个病例，要求他们评估拔除无症状的下颌阻生第三磨牙的必要性。所有前测受访者被随机分配到对照组或干预组。在向干预组提供CPG后，要求两组再次评估相同的病例。计算拔除第三磨牙的决定频率。使用卡方检验和方差分析来测试学年和性别对辍学率以及提供CPG对学生治疗决定的影响。干预组拔除第三磨牙的指征减少具有统计学意义（P<0.05）。在对照组中，未观察到显著下降。得出的结论是，提供CPG显著影响牙科学生在第三磨牙决策任务中关于治疗的决策。使用CPG的学生表现出更多符合指南的决策。
