API CJ-4 oils exceed the performance criteria of API CI-4 with CI-4 PLUS, CI-4, CH-4, CG-4 and CF-4 and can effectively lubricate engines calling for those API Service Categories. When using CJ-4 oil with higher than 15 ppm sulfur fuel, consult the engine manufacturer for service interval.
After braces are removed, most patients will need to wear a retainer all the time for the first six months, then only during sleep for many years.our orthodontist will want to see you about every month or so in order to make sure the braces are exerting steady pressure on the teeth. To create more tension and pressure on your teeth, the orthodontist will make adjustments in the wires, springs, or rubber bands of the braces.
How long should all the teeth look PERFECT before they can take the braces off. In other words.. how long do your teeth have to be in a perfect position, with NOTHING left to work on in your mouth (at least to your visible eye) before the braces come off? I was always under the assumption there was a retention phase while in braces, but is it possible to just take them off right after things are done, and retain immediately with only retainers??