Zachrisson B U
Am J Orthod. 1977 Apr;71(4):440-8. doi: 10.1016/0002-9416(77)90247-0.
The experience obtained in clinical evaluation of forty-three direct-bonded mandibular canine-to-canine retainers after a minimum observation period of 1 year (range, 1 to 2.5 years) is summarized. Results indicate that the bonded retainer has all the advantages of a fixed soldered retainer, in addition to being invisible. Patient acceptance was excellent, and the failure rate in terms of loose retainers was low. Also, for a number of other retention problems, direct bonding with different types of lingual wire seems to open up a range of promising new possibilities.
总结了对43个直接粘结的下颌尖牙间保持器进行至少1年（范围为1至2.5年）临床评估所获得的经验。结果表明，粘结式保持器除了不可见外，还具有固定焊接式保持器的所有优点。患者接受度极佳，保持器松动方面的失败率较低。此外，对于许多其他保持问题，使用不同类型的舌侧丝进行直接粘结似乎开辟了一系列有前景的新可能性。
