Emslie R D
Int Dent J. 1977 Jun 2;27(2):119-23.
The general practitioner with loyal and regular patients is in a good position to undertake long-term clinical trials of periodontal treatment. Ethically, these should be comparisons of agents or procedures acknowledged to be beneficial but lacking confirmation of the long-term effects. Standardized bite-wing radiographs can represent a valuable record in this type of study.
拥有忠实且定期就诊患者的全科医生非常适合开展牙周治疗的长期临床试验。从伦理角度来看，这些试验应该是对公认有益但缺乏长期效果证实的药物或治疗方法进行比较。标准化的咬合翼片在这类研究中可以成为一份有价值的记录。
