{"id":2477,"date":"2026-02-11T00:00:00","date_gmt":"2026-02-10T23:00:00","guid":{"rendered":"https:\/\/ccervera.knut-studio.com\/actualitat\/kisses-and-oral-health-can-i-transmit-diseases-with-a-kiss\/"},"modified":"2026-05-26T15:26:57","modified_gmt":"2026-05-26T14:26:57","slug":"kisses-and-oral-health-can-i-transmit-diseases-with-a-kiss","status":"publish","type":"actualitat","link":"https:\/\/ccervera.knut-studio.com\/en\/news\/kisses-and-oral-health-can-i-transmit-diseases-with-a-kiss\/","title":{"rendered":"Kisses and oral health: Can I transmit diseases with a kiss?"},"content":{"rendered":"\n

It’s time to talk about love… but also about bacteria. Beyond the affectionate gesture it represents, a single kiss can transmit over 80 million bacteria.<\/p>\n\n

However, this does not mean that kissing is dangerous, by any means.<\/p>\n\n

What is important to understand is what is truly transmitted when we kiss and how we can prevent potential risks to oral health.<\/p>\n\n

What is transmitted when we kiss?<\/h2>\n\n

A kiss is a direct exchange of saliva.<\/p>\n\n

Within it live beneficial microorganisms… and others that are less so.<\/p>\n\n

When kissing, we share bacteria that are part of our oral microbiota, but we can also transmit viruses, fungi, or periodontal pathogens if an active infection is present.<\/p>\n\n

Transmission does not depend solely on the kiss, but also on the oral health status of both individuals.<\/p>\n\n

When gingivitis, periodontitis, cavities, or poor hygiene are present, the risk of contagion increases.<\/p>\n\n

Diseases that can be transmitted through a kiss. Although kissing is a natural and healthy gesture, we must not forget that saliva acts as a vehicle for the transmission of various microorganisms.<\/p>\n\n

Most are harmless, but some can cause problems if they find a favorable environment.<\/p>\n\n

Therefore, it is important to know which diseases can be transmitted through a kiss and how to prevent them.<\/p>\n\n

1. Cavities<\/strong><\/p>\n\n

    <\/ol>\n\n

    The bacteria responsible for cavities, especially Streptococcus mutans, are easily transmitted through saliva.<\/p>\n\n

    Therefore, kissing (or even sharing cutlery) can promote the appearance of cavities in susceptible individuals. <\/p>\n\n

    2. Periodontal Disease<\/strong><\/p>\n\n

    SEPA reminds us that periodontal bacteria\u2014related to gingivitis and periodontitis\u2014can be transmitted between partners, especially if there is active inflammation, bleeding, or periodontal pockets.<\/p>\n\n

    This does not imply that the other person will develop the disease, but it does increase the probability if they already present risk factors. <\/p>\n\n

    3. Cold sores.<\/strong><\/p>\n\n

    The herpes simplex virus (HSV-1) is highly contagious.<\/p>\n\n

    It can be transmitted even when the lesion is not completely active, although the risk is higher when vesicles are present. <\/p>\n\n

    4. Mononucleosis (“the kissing disease”)<\/strong><\/p>\n\n

    This virus is transmitted almost exclusively through saliva.<\/p>\n\n

    5. Oral Fungi (Candidiasis)<\/strong><\/p>\n\n

    When defenses are low or the oral microbiota is altered, the Candida albicans fungus can be easily transmitted.<\/p>\n\n

    According to Dr. Alberto Sicilia, a leading expert in periodontal health, kissing with an active gum disease can not only transmit bacteria but also worsen the patient’s own symptoms.<\/p>\n\n

    Should I be concerned about kissing?<\/h2>\n\n

    No.<\/p>\n\n

    Kissing is not dangerous if your mouth is healthy.<\/p>\n\n

    Risks only increase when there are infections, inflammation, poor hygiene, or active lesions such as herpes.<\/p>\n\n

    In fact, kissing has positive effects:<\/p>\n\n

      \n
    • Stimulates saliva production (which protects teeth).<\/li>\n\n\n\n
    • Reduces stress and improves emotional well-being.<\/li>\n\n\n\n
    • Strengthens the emotional bond with your partner.<\/li>\n<\/ul>\n\n

      So, kissing is healthy… as long as your oral health is too.<\/p>\n\n

      Tips for healthy kissing:<\/p>\n\n

        \n
      • Maintain rigorous oral hygiene: brushing, flossing, and regular cleanings.<\/li>\n\n\n\n
      • Avoid kissing if you have an active cold sore.<\/li>\n\n\n\n
      • Do not share cutlery, toothbrushes, or lip products.<\/li>\n\n\n\n
      • Monitor gum bleeding: if it appears, schedule an appointment.<\/li>\n\n\n\n
      • If you or your partner have gingivitis or periodontitis, it is essential to treat it to prevent bacterial transmission.<\/li>\n<\/ul>\n\n

        The best Valentine’s Day gift is a healthy mouth.<\/p>\n\n

        If you notice discomfort, bleeding, bad breath, or simply want to ensure everything is in order, we are here to help you.<\/p>\n","protected":false},"author":5,"featured_media":2478,"template":"","categoria":[32],"class_list":["post-2477","actualitat","type-actualitat","status-publish","has-post-thumbnail","hentry","categoria-salut-bucodental"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/actualitat\/2477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/actualitat"}],"about":[{"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/types\/actualitat"}],"author":[{"embeddable":true,"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/users\/5"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/media\/2478"}],"wp:attachment":[{"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/media?parent=2477"}],"wp:term":[{"taxonomy":"categoria","embeddable":true,"href":"https:\/\/ccervera.knut-studio.com\/en\/wp-json\/wp\/v2\/categoria?post=2477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}