Scientists have developed a nasal spray that could do away with painful anaesthetic injections for dental procedures.
http://www.indianexpress.com/news/now-nasal-spray-to-get-you-rid-of-painful-dental-jabs/1138065/
http://www.indianexpress.com/news/now-nasal-spray-to-get-you-rid-of-painful-dental-jabs/1138065/
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