References in periodicals archive ?
Gingival crevicular fluid collection was performed on the distal side of the upper canine teeth at the following times: prior to activation of the finger spring (to), a week after activation (t1), two weeks after activation (t2), three weeks after activation (t3), and four weeks after activation (t4).
That is, don't let the index finger spring off the trigger.
An impression of the maxillary arch was taken to permit fabrication of a appliance with finger spring for regaining space, and a palatal hook.