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Activated charcoal is the craze in the beauty industry to help get those pearly whites, but at what cost is it taking on oral health?What is activated charcoal?It's not the charcoal used in your backyard barbeque. According to Dr. Todd Shatkin of Aesthetic Associates Centre in Amherst, New York, it's a slightly abrasive powder usually formed by coconut and is used in many different aspects of the health industry. Activated charcoal is an absorptive property, and it's designed to absorb and lift blemishes from teeth.It's used for cleansing, weight loss treatments, and skin care products. Now it's being used for teeth whitening to remove stains. How does it work?A toothbrush is dipped into the powder and is brushed directly onto teeth. The activated charcoal powder removes the extrinsic stains; stains that are caused by wine, coffee and other foods and drink. "Charcoal-based products would be good to remove the surface stain, but it won't internally bleach or whiten the teeth from within," Shatkin said. Is activated charcoal safe to use?Shatkin says yes.He says, to first make sure the product is FDA approved, and check the abrasiveness level. "The enamel is really pretty strong," he said. "If you're in the enamel your probably not going to do any harm to your teeth. But if the patient has worn through the enamel into the dentin, it causes sensitivity and causes discomfort. If you use abrasive materials on the dentin, it will just make things worse."He says, in the end, it all comes down to good oral hygiene and visiting your dentist every three to six months. 1716

Amateur fossil enthusiast Phil Mullaly knew he had found something special when he spotted something glimmering in a boulder.Mullaly was walking along Jan Juc, a renowned fossil site along Victoria's Surf Coast in South Australia when he spotted a partially exposed shark tooth in the rock."I was immediately excited, it was just perfect," Mullaly said.That was just one of multiple teeth Mullaly found that day in 2015. Three years later, scientists have confirmed his hunch, saying Thursday that the teeth are all about 25 million years old and belonged to an extinct species of mega-toothed shark -- the Great Jagged Narrow-Toothed Shark (Carcharocles angustidens).The ancient shark was believed to grow up to about 9 meters (30 feet) long, double the size of a great white shark. The teeth discovered on the beach were around 7 cm (2.75 inches) in length.Mullaly's is one of the rarest finds in the history of paleontology, according to Erich Fitzgerald, a palaeontologist at Museums Victoria who led a team to excavate the site where the initial fossils were found."If you think about how long we've been looking for fossils around the world as a civilization -- which is maybe 200 years -- in (that time) we have found just three (sets of) fossils of this kind on the entire planet, and this most recent find from Australia is one of those three," Fitzgerald told CNN. 1382

Alek Minassian, the man accused of plowing into pedestrians with a van in Toronto on Monday, posted a cryptic message to Facebook minutes before setting off in his rented vehicle, Sgt. Graham Gibson, a homicide detective with the Toronto police, said Tuesday.CNN law enforcement analyst Josh Campbell said earlier that investigators told him they believe a post on Minassian's Facebook page refers to the man who killed six and injured 14 in a drive-by shooting and vehicle ramming attack near the University of California Santa Barbara campus in 2014. Elliot Rodger later died from an apparent self-inflicted gunshot wound.Minassian, was charged Tuesday with 10 counts of first-degree murder in a Toronto court.The 25-year-old is also charged with 13 counts of attempted murder.Minassian, who was wearing a white jumpsuit with his hands cuffed behind him, appeared attentive during the brief hearing. His next court appearance will be a bail hearing on May 10.Investigators are still trying to determine the motive behind the attack, which left 10 people dead and 15 hurt."Obviously all Canadians continue and will continue to have questions about why this happened, what could possibly be the motive behind it," Canadian Prime Minister Justin Trudeau said Tuesday.So far, officials aren't calling the attack an act of terrorism. "There would appear to be no national security connection," Canadian Public Safety Minister Ralph Goodale said.But Toronto Police Chief Mark Saunders said "it's very clear just from a general perspective to say that the actions definitely look deliberate."The van sped down a busy street Monday with reckless abandon, swerving into the wrong lanes of traffic and careening onto a sidewalk.Minassian was arrested in a white rental van less than 30 minutes after police received a 911 call, Saunders said.He said Toronto authorities hadn't had previous contact with the 25-year-old suspect. But a US law enforcement official with knowledge of the matter said Minassian was known to authorities.Clue emerges from FacebookInvestigators found a Facebook account they believe belongs to Minassian, CNN law enforcement analyst Josh Campbell said.A message posted on the account earlier Monday read: "All hail the Supreme Gentleman Elliot Rodger!"Campbell said investigators believe the post refers to the man who killed six and injured 14 in a drive-by shooting and vehicle ramming attack near the University of California Santa Barbara campus in 2014. Rodger later died from an apparent self-inflicted gunshot wound.Investigators said Rodger was motivated to carry out his attack by a personal grievance related to his immersion in the extremist ideological subculture of men's rights activists, who believe women don't actually want gender equality and have been brainwashed by feminist propaganda.A mile-long scene of carnageAuthorities said Minassian left a trail of destruction nearly a mile long, north of midtown Toronto."Based on witness accounts, we have a vehicle that started north on Yonge Street from Finch (Avenue) and drove southbound at some point in times on sidewalks, at some point in times driving southbound in northbound lanes," Saunders said, adding that it appeared to be a deliberate act.Ten people were transported to Sunnybrook Health Sciences Centre and two were declared dead at the hospital. Five patients there were in critical condition. Two other patients were taken to St. Michael's Hospital, but their conditions are unknown.'Scene from a war zone'Diego DeMatos was one of the good Samaritans who tried to save victims.DeMatos said he was driving north on Yonge when he saw the van driving fast southbound. He said he saw the van hit a man and a woman."Blood started gushing out of his head, and she was bleeding really badly, too," DeMatos told CNN.At first, he thought the collision was a hit-and-run. But then he noticed four to five victims on the ground as he drove a few meters further.DeMatos said he stopped to help another victim, who was already being aided by someone."I went over to try to perform CPR on him. ... He died in our arms," DeMatos said."It was like a scene from a war zone. There was garbage cans everywhere, broken bus shelters and mailboxes on the ground."A dramatic arrestCell phone video obtained by CNN partner CTV appears to show a tense standoff with a suspect after the incident. Police have not said whether the person in the video was Minassian.The footage appears to show a man standing in front of a white van with a damaged front bumper. The man is yelling and extending one arm, pointing an object at an officer standing behind a black car.The officer has his weapon drawn and pointed at the man. The officer slowly steps toward him and yells "Get down, get down!"Later in the video, the man is seen on the ground and the officer is cuffing his hands behind him; the object can be seen lying on the ground off to the side.As for whether the suspect had a weapon, "There's nothing that indicates he has a gun," Saunders said.Trudeau offered his condolences to the families of the victims. He thanked first responders, who he said "faced danger without hesitation, and their efforts no doubt saved lives and prevented further injuries.""We should all feel safe walking in our cities and communities," he said. "We are monitoring this situation closely, and will continue working with our law enforcement partners around the country to ensure the safety and security of all Canadians."The-CNN-Wire 5500

After years of struggling, one Kansas mother finally has peace of mind. She can now walk through the park with her daughters free of fear. However, living without fear doesn’t mean living without worry.“It feels unsafe to be who you are sometimes,” said J, a mother of two living in Lawrence, Kansas. The mother wishes to be called J in order to protect her identity, because even in a community where legally she should be safe, J is still concerned.“We know what it's like to be living in fear…to have that uncertainty,” said J, referring to her years growing up undocumented in the United States. Now, even though she is a citizen, she worries the current administration will find ways to strip her of her rights.Growing up undocumented taught J about a different side of the American dream. It meant asking neighbors to use their name for utilities and not accessing community resources.“Calling the police on someone…definitely we stopped ourselves because we don't want those questions,” said J.She saw the same fear in her own daughter’s eyes as her family worked for over four years for her husband to become documented.“Our daughter has asked what would happen to her dad if he was pulled over. Would he be taken away? It’s just a constant fear of are your parents going to come home that day?”Now that her family is documented, J wants to use her voice to help others in her community stop feeling that same worry. It’s a feeling she’s still confronting herself, especially after Immigration and Customs Enforcement raids last year ended in the wrong man getting arrested and federally detained in her own community, a typically quiet college town.“You can't even walk without looking the way that we look and someone saying, ‘I bet that person is undocumented, and they're probably a criminal, so let's get them,’” said J.So, she joined a group called Sanctuary Alliance, a grass-roots movement fighting to designate the city of Lawrence as a sanctuary city.It took a year of meetings and discussions, but just weeks ago, the city commission voted.The sanctuary ordinance was approved.So, what does it mean to be a sanctuary city? The Lawrence, Kansas ordinance says: no city department can ask about immigration status, including the police and the court system; Anytime an ID is required, a resident can present identification valid in their home country; all city services, including transit, parks and utilities are available to all residents, regardless of immigration status; and if anyone asks about their status, there are ways people can safely report violations to the city.“It’s a big step toward creating safety for the community,” said J. “People think that becoming a sanctuary city will bring criminals in because obviously undocumented people are criminals. They're not. Statistically, a sanctuary city will become safer because the citizens who are undocumented will now not be afraid to call the police."Safety in this community is just the start of the conversation. Sanctuary Alliance is now pushing for a county-wide sanctuary to help more families live life outside the shadows.But while that fight continues, J takes comfort in hey city’s ordinance bringing a new era of unity this community has never seen before.“There's still some work that needs to be done, but it will make it better,” said J. 3340

After actor Sacha Baron Cohen released his first Borat movie in 2006, Kazakhstan, the nation in which the fictional character Borat is from, was unhappy with its portrayal, so they banned the film and threatened to sue Cohen.Well, it seems that's water under the bridge because, on Sunday, the Kazakhstan tourism board released a new marketing campaign by embracing Borat's catchphrase "very nice!" as its official tourism slogan.According to the New York Times, after seeing the trailer for "Borat Subsequent Moviefilm," Dennis Keen, an American who now lives in Kazakhstan, asked the country’s tourism officials to welcome the Borat character's catchphrase and turn it into the country's tourism slogan.In the video, visitors to Kazakhstan exclaim "very nice!" after experiencing the countryside, food, and traditions.After hearing about the campaign, Cohen via a statement to The Times said the country, which borders China and Russia, portrayed in his movie "has nothing to do with the real country" and is "opposite of Borat's version.""Borat Subsequent Moviefilm" is available to stream on Amazon Prime. 1117