Fellow celebrity Jaime Ridge, 21, has also been sporting braces in recent months.
Once a teenage rite of passage, braces are becoming commonplace in the mouths of adults, with New Zealand pensioners up to 80 years old seeking the treatment, which can cost upwards of $6000. "Age is not a limiting factor at all," New Zealand Orthodontists' Association secretary Dr Judith Hay said.
She said some patients came from families unable to afford the treatment; others had lived with a slight defect but wanted it fixed. Others needed to restore their bite as part of ongoing dental work.
Remuera orthodontist Dr Janice Somerville said nearly a third of her patients were adults and the number of mature patients had been slowly increasing in recent years.
"I think people are getting slightly more self-confident about doing it."
Hay said the typical cost of regular orthodontic work fell between $6000 to $11,000 depending on the type of treatment and where you lived in New Zealand.
The time spent wearing braces also varied from six months, to correct slightly irregular front teeth, to three years for more complex treatments.