"Happy teeth Manchester Orthodontic Centre Cool customers"
Note: The original Chinese text seems to have a playful and somewhat disjointed structure, which can make a direct translation challenging. The phrase provided appears to combine a cheerful expression about teeth with a proper name (Manchester Orthodontic Centre) and a colloquial term ("酷辣客" translated as "Cool customers"). The context might suggest a promotional or branding message for the orthodontic center. If this is for an official context, additional refinement may be needed.
The Manchester Tooth Straightening Centre, who have had their advert printed on the tooth of this happy smile, remind us all how important it is to have a healthy set of gnashers.