The phrase "a protraction" is correct and usable in written English.
It can be used to refer to the act of prolonging or extending something, often in a formal or technical context.
Example: "The protraction of the negotiations led to increased tensions between the parties involved."
Alternatives: "an extension" or "a prolongation".
Intravenous oxytocin was administered when a protraction disorder of labor was identified.
Exercises that target the SA are included in the rehabilitation of shoulder or neck pain and mostly include a protraction component.
Three weeks after the operation, the orthopedic force of 400 g per side for 6 months was applied using a protraction head gear.
The TB SAG is the upper member of the CS2000® consisting of NiTi expansion springs for transverse correction as well as NiTi springs in an anterior-posterior direction that places a protraction force on the pre-maxilla.
For example, an overly-aggressive attorney may over work your case, resulting in unnecessary delays, increased legal costs and a protraction of the process.
A tapered whisker would flick past the object with a protraction angle of ∼20°, while an untapered whisker would require a protraction angle larger than 60°.
Insulin degludec, a basal insulin analogue, uses a novel protraction mechanism, resulting in a flat, stable profile and a duration of action greater than 42 h.
Stimulation of wS1 with a 50-Hz light train caused a sustained retraction of the contralateral whisker whereas stimulation of wM1 with a 50-Hz light train caused a rhythmic protraction of the contralateral whisker (wS1, −7.3 ± 1.1°, n = 10 mice; wM1, 6.0 ± 0.9°, n = 8 mice; P = 10−7, Student's t-test for unpaired observations; Fig. 1A C) (Matyas et al., 2010).
A single 5-ms light flash delivered to wS1 robustly evoked a small retraction of the contralateral whisker, following which the animal initiated whisking, while a 5-ms light flash delivered to wM1 caused a small protraction (wS1, −1.4 ± 0.4°, n = 6 mice; wM1, 1.9 ± 0.4°, n = 5 mice; P = 10−4, Student's t-test for unpaired observations; Fig. 1E and F).
At the skeletal level, both angular (Sella-Nasion to A (SNA) 1.87± 1.06 mm) and linear (Vert.T-A 3.34 ± 1.54 mm) measurements of the anteroposterior position of the maxilla showed a significant protraction (p < 0.001).
Forward movement of the maxilla using an extraoral protraction force could correct the skeletal class III in children with retrognatic maxilla and apply tensile forces on the circum-maxillary sutures [2 7].
