Macomb District Dental Hygienists’ Society (MDDHS) was chartered by the Michigan Dental Hygienists’ Association (MDHA) in 1967. The charter was signed by Jean Bedore Collins who was then president of MDHA. It became the ninth component of the Michigan State Dental Hygienists’ Association (MSDHA), as it was then called. Macomb’s first president was Joan McGowan. The original membership consisted of twenty hygienists, which made it a large component at the time. The primary reason for formation of the Macomb component was simply the growth of the county’s population. The majority of MDDHS members were previously members of Detroit District Dental Hygiene Society. MDDHS represents Macomb County.