Welcome to One World One Smile


One World One Smile is a nonprofit organization based in Dar es Salaam, Tanzania. We are dedicated to providing dental health care and oral hygiene awareness to children and under-resourced communities across Tanzania. Poor oral health is a major risk factor that can escalate the severity of other health issues such as HIV/AIDS and diabetes, both of which are prevalent in Tanzania. In order to prevent complications from oral disease and mortality we seek to bring dental health care to communities where it is most needed.



As of February 26th 2019, OWOS has temporarily suspended all humanitarian actions in Tanzania to ensure the safety of its Volunteers. We will be closely monitoring the situation to resume our efforts as soon as possible.

Asante sana – Tupo pamoja  


Dental care for 10,000 Tanzanians  with GlobalGiving.org


GlobalGiving is a US 501(c)3 organization. You will receive the tax-exempt ID number (EIN) once your donation is made


Owos is very grateful to Deva Premal and Mitten for allowing use of their Gayatri Mantra to give life to  our images in the following video

Last Big Impact action with DentalSwat for 2018

 Tanzania – November 30th to December 11th 2018

 With the purpose in mind to mobilize resources all over the world to change the Dental health panorama in rural Tanzania, OWOS has given birth to DentalSwat in 2017, a massive movement to make humanitarian actions more meaningful by making them more powerful.

$6.87 helps 1 patient!






The impact oral health can have on overall lifespan should not be underestimated.