Sharon Erdrich, PhD, discusses why oral health should be routine in health care

In a recent interview with Contemporary OB/GYN, Sharon Erdrich, researcher from the School of Pharmacy at the University of Sydney, discussed the vital role clinicians can play in promoting better oral health among their patients and the broader implications of oral hygiene on systemic health. She emphasized that the mouth is often overlooked in general health assessments, despite being the entry point of the gastrointestinal system and a potential source of systemic disease.

Erdrich began by critiquing the current clinical practice where the mouth is typically only examined in response to specific complaints, such as a sore throat or a visible issue like a tongue lesion. She advocated for a more proactive approach where oral health assessments are integrated into routine clinical evaluations. This includes asking patients about the condition of their teeth and gums and how they perceive their oral health.

She noted that oral health is often equated solely with the condition of teeth, while the health of the gums tends to be neglected. However, she emphasized that gum disease, particularly gingivitis and its more severe form, periodontitis, has significant implications because it can provide bacteria with direct access to the bloodstream, potentially leading to systemic inflammation and chronic disease.

Erdrich encouraged clinicians to ask their patients about their oral hygiene routines, including how often they brush, floss, and visit dental professionals such as hygienists. She also highlighted the social and diagnostic importance of bad breath, also known as halitosis, noting that 80% of cases originate from microbial imbalances in the mouth. Addressing such issues can be challenging in conversation, but she believes it presents a valuable opportunity for clinicians to initiate discussions about oral hygiene and related health practices.

In the second part of the interview, Erdrich discussed patient education. She urged individuals to take more responsibility for their own oral health, starting from early education for children. She underscored the need for twice-daily brushing and the use of interdental cleaning tools such as floss or water picks. Regular professional dental cleanings, ideally annually or more frequently based on individual needs, are also crucial.

Diet also plays a significant role in oral health. Erdrich explained that high sugar intake and diets high in refined carbohydrates, such as white flour, contribute to oral health problems. A healthy, balanced diet supports better oral and overall health. She concluded by noting a potential link between chronic pain conditions, such as migraines, and underlying dental issues, such as infections around root canals or dental crowns. She expressed hope for future research in this area but acknowledged that funding remains a major barrier.

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This video is part 2 of a 2-part series. Click here for part 1.

Reference

Erdrich S, Gelissen IC, Vuyisch M, Toma R, Harnett JE. An association between poor oral health, oral microbiota, and pain identified in New Zealand women with central sensitisation disorders: a prospective clinical study. Frontiers in Pain Research. 2025. doi:10.3389/fpain.2025.1577193