Ultrasonic teeth cleaning procedures might not be suitable for everyone, the Food and Drug Administration (FDA) said on Tuesday, advising people with hemophilia or similar conditions, pacemakers, congenital heart problems, acute bacterial endocarditis, chronic lung disease or those who have had heart valve replacement surgery not to undergo the treatment.
Ultrasonic cleaners operate using an electromagnetic field, which, with its high vibration rate, can swiftly and efficiently remove dental calculus, but could be fatal for people with pacemakers, as the electromagnetic field could interfere with its discharge rate, the FDA said.
The operator is responsible for adjusting the strength of the electromagnetic field, it said.
Ultrasonic cleaning can cause minor injuries to the gums, so people with hemophilia face infection risks, it said.
Bacterial infection of the gums could enter the bloodstream and reach the heart, causing endocarditis, it said.
RESPIRATORY RISK
Residual tartar removed during the debridement process could block the respiratory tract and could prove fatal for those with chronic lung disease, the FDA said.
The agency called on people to inform their dentist if they have any of the conditions so the best teeth-cleaning method would be used.
A total lunar eclipse coinciding with the Lantern Festival on March 3 would be Taiwan’s most notable celestial event this year, the Taipei Astronomical Museum said, urging skywatchers not to miss it. There would be four eclipses worldwide this year — two solar eclipses and two lunar eclipses — the museum’s Web site says. Taiwan would be able to observe one of the lunar eclipses in its entirety on March 3. The eclipse would be visible as the moon rises at 5:50pm, already partly shaded by the Earth’s shadow, the museum said. It would peak at about 7:30pm, when the moon would
The Coast Guard Administration (CGA) yesterday held a ceremony marking the delivery of its 11th Anping-class offshore patrol vessel Lanyu (蘭嶼艦), saying it would boost Taiwan’s ability to respond to Beijing’s “gray zone” tactics. Ocean Affairs Council Deputy Minister Chang Chung-Lung (張忠龍) presided over the CGA event in the Port of Kaoshiung. Representatives of the National Security Council also attended the event. Designed for long-range and protracted patrol operations at sea, the Lanyu is a 65.4m-long and 14.8m-wide ship with a top speed of 44 knots (81.5kph) and a cruising range of 2,000 nautical miles (3704km). The vessel is equipped with a
DEFENSE: The US should cancel the US visas or green cards of relatives of KMT and TPP lawmakers who have been blocking the budget, Grant Newsham said A retired US Marine Corps officer has suggested canceling the US green cards and visas of relatives of opposition Taiwanese lawmakers who have been stalling the review of a proposed NT$1.25 trillion (US$39.7 billion) special defense budget. The Executive Yuan has proposed the budget for major weapons purchases over eight years, from this year to 2033. However, opposition lawmakers have refused to review the proposal, demanding that President William Lai (賴清德) first appear before the Legislative Yuan to answer questions about the proposed budget. On Thursday last week, 37 bipartisan US lawmakers sent a letter to Legislative Speaker Han Kuo-yu (韓國瑜), the heads
Two siblings in their 70s were injured yesterday when they opened a parcel and it exploded, police in Yilan said, adding the brother and sister were both in stable condition. The two siblings, surnamed Hung (洪), had received the parcel two days earlier but did not open it until yesterday, the first day of the Lunar New Year holiday in Taiwan, police said. Chen Chin-cheng (陳金城), head of the Yilan County Government Police Bureau, said the package bore no postmark or names and was labeled only with the siblings’ address. Citing the findings of a
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