Dental supplier 1st Dental Laboratories warned its interim results would be behind directors expectations.
But as reported on www.yorkshirepost.co.uk, they said recovery plans were in place for the second half of the year.
The Harrogate-based group said its revenues had dropped by 12% and the problem was "beyond the control of the directors and management".
Chairman Andrew Garner said he could not go into more detail about the problem, but added: "This disruption is believed to be a one-off and appears not to be getting worse, with some recovery expected in the second half of the year.
"Our new main board directors, Nigel Spring, operations director, and Roger Smallwood, finance director, are making real progress and focusing on improving performance."
The company supplies bridges and crowns and offers an online service – eteeth – that aims to offer products at competitive prices.
For the year ended 30 November 2007, the company reported underlying pre-tax profits of £615,000.
The group will announce its interim results on 27 August, when Mr Garner said he would go into more detail about the issues involved.