Tulloch J F, Antczak A A, Wilkes J W
Robert Wood Johnson Dental Services Research Scholars Program, Harvard School of Dental Medicine, Boston, Massachusetts.
J Oral Maxillofac Surg. 1987 Oct;45(10):855-65. doi: 10.1016/0278-2391(87)90236-9.
A theoretical model using a decision tree is used to compare three alternative strategies: extract all third molars prior to complete root formation; extract only those third molars that become impacted; and extract only those impacted third molars that develop some associated pathology. The model used to determine the expected value of these alternative strategies depends on the probability of eruption, the type of impaction, and likelihood of developing preoperative pathology. The decision tree can be used to identify a preferred strategy either for an individual patient or for a policy recommendation under a variety of clinical conditions.
在牙根完全形成之前拔除所有第三磨牙；仅拔除那些发生阻生的第三磨牙；以及仅拔除那些出现一些相关病变的阻生第三磨牙。用于确定这些替代策略预期值的模型取决于萌出概率、阻生类型以及术前发生病变的可能性。决策树可用于为个体患者或在各种临床情况下的政策建议确定首选策略。
