Dentista Specialista dr. Guidetti

25/08/2026

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This Is What Long-Term Pacifier Use Can Do to a Child's Teeth.

Pacifiers can help soothe infants, but long-term use may affect the normal growth and development of the jaws and teeth. Constant sucking pressure over time can contribute to problems such as an anterior open bite, increased overjet, crossbite, and tooth misalignment.

The longer and more frequently a child uses a pacifier, the greater the risk of developing these changes. In many cases, stopping the habit early allows the teeth and jaws to return toward more normal development. However, continued use beyond the preschool years may increase the likelihood of needing orthodontic treatment later.

The American Academy of Pediatric Dentistry recommends gradually discontinuing pacifier use as children grow, particularly beyond age 3.

Small habits during childhood can have a lasting impact on the development of a healthy smile.

04/08/2026

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Most people think the morning brush is the most important. Research suggests the bedtime brush may matter even more.

During sleep, saliva production naturally decreases, reducing the mouth's ability to wash away plaque and bacteria. As a result, dental plaque can remain undisturbed for hours, creating an environment that may promote bacterial growth and inflammation.

In a study published in Scientific Reports, researchers examined whether the timing of toothbrushing was associated with cardiovascular outcomes. People who brushed their teeth before bed—whether or not they also brushed in the morning—had a significantly lower risk of cardiovascular events than those who skipped nighttime brushing. Interestingly, brushing only in the morning did not show the same association.

The researchers suggest that removing dental plaque before sleep may help reduce the overnight bacterial burden. Because this was an observational study, the findings show an association rather than proving cause and effect.

Brushing before bed takes only a few minutes, yet it remains one of the simplest evidence-based habits for protecting oral health—and it may also support overall health.

Reference:
Isomura ET, Suna S, Kurakami H, et al. Not brushing teeth at night may increase the risk of cardiovascular disease. Scientific Reports. 2023.

04/08/2026

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Uno studio dell’Università della California San Diego, pubblicato su Preventive Medicine Reports, ha scoperto che chi soffre di cannabis use disorder (CUD), cioè un "uso problematico e continuativo di cannabis", presentano un rischio più che triplicato (+325%) di sviluppare un tumore alla bocca nei cinque anni successivi.

Attenzione: lo studio non dimostra che la cannabis causi il cancro, ma mette in luce una forte correlazione, a maggior ragione degna di attenzione se si considera che questa associazione si manifesta anche in presenza di altri fattori di rischio, come per esempio il fumo di tabacco: per capirci, in chi fuma sia tabacco sia cannabis il tumore alla bocca l'incremento rispetto a chi fuma solo tabacco (+624%) è persino maggiore.

Il fumo di cannabis contiene sostanze cancerogene simili a quelle del tabacco e il THC potrebbe influenzare il sistema immunitario, aumentando il rischio.

Nel 2022, circa 17,7 milioni di persone negli USA usavano cannabis ogni giorno o quasi.

Fonte: University of California San Diego, Preventive Medicine Reports, 2025

21/07/2026

This is why even a small cavity should never be ignored.

A cavity may look small on the surface, but that doesn't always reflect the amount of damage hidden inside the tooth.

Unlike enamel, the dentin beneath it is softer and less mineralized, allowing tooth decay to spread more quickly once bacteria break through the outer protective layer. Because this process often occurs silently, many cavities continue to grow without causing pain or obvious symptoms.

By the time a tooth starts to hurt, the decay may have already reached the pulp—the living tissue that contains nerves and blood vessels. At that stage, treatment is often more complex and may require root canal treatment or, in severe cases, tooth extraction.

The good news is that most cavities are highly treatable when detected early. Regular dental checkups and timely treatment can preserve more of the natural tooth, reduce treatment costs, and help prevent avoidable complications.

20/06/2026

Healthy teeth may be doing far more than helping people smile and chew.

A recent study found that the number of healthy natural teeth a person has may be closely linked to how long they live. Researchers reported that counting both the number and condition of teeth provided a better picture of lifespan risk than simply recording tooth loss alone. People who retained more healthy or properly treated teeth generally showed a lower risk of premature death.

Scientists believe this connection reflects the role oral health plays throughout the body. Healthy teeth help maintain proper nutrition by allowing people to eat a wider variety of foods, while untreated decay, infections, and tooth loss can contribute to chronic inflammation. Long-term oral inflammation has been associated with conditions such as cardiovascular disease, diabetes, and other age-related health problems.

The findings suggest that the mouth may serve as an important window into overall health, and that preserving natural teeth could be associated with healthier aging and improved longevity.

📄 Source:
DOI: 10.1186/s12903-025-07275-6

18/05/2026

Flossing may do more than protect your teeth and gums — new research suggests it could also be linked to a lower risk of certain types of stroke and an irregular heart rhythm called atrial fibrillation (AFib).

Researchers followed more than 6,000 adults for 25 years and found that people who flossed at least once a week had a lower risk of ischemic stroke, especially cardioembolic stroke — a type caused by blood clots traveling from the heart to the brain.

The study also found a lower risk of AFib among regular flossers. AFib is a common heart rhythm disorder that can increase stroke risk.

Scientists believe one possible reason is inflammation. Poor oral health and gum disease can trigger chronic inflammation in the body, which may affect blood vessels and heart health over time.

Compared to non-flossers, regular flossers showed:
• 22% lower risk of ischemic stroke
• 44% lower risk of cardioembolic stroke
• 12% lower risk of AFib

Researchers also noted that flossing alone is not enough to prevent stroke, but it may be one small part of an overall healthy lifestyle alongside proper diet, exercise, blood pressure control, sleep, and good oral hygiene.

Your mouth is connected to the rest of your body more than many people realize.

📄 Source: American Heart Association News. Research presented at the American Stroke Association’s International Stroke Conference 2025.

06/05/2026

Come conservare lo spazzolino da denti in modo ideale

Mantenere lo spazzolino da denti pulito e conservato correttamente è essenziale
per prevenire la proliferazione di batteri e garantire la salute orale. Secondo
l'Associazione Brasiliana di Odontoiatria (ABO), lo spazzolino deve essere riposto in
posizione verticale, preferibilmente in un supporto che permetta alle setole di
rimanere completamente esposte all'aria. Contrariamente a quanto molti credono,
si raccomanda di non lasciare lo spazzolino in contenitori chiusi immediatamente
dopo l'uso, come bicchieri con coperchio o custodie. L'umidità accumulata crea un
ambiente propizio per funghi e batteri. Lasciarlo esposto all'asciugatura naturale
evita l'accumulo di umidità, che favorisce la proliferazione di germi. Gli esperti
consigliano inoltre che gli spazzolini non si tocchino quando vengono riposti, per
evitare il trasferimento di microrganismi tra di essi. Nelle famiglie con più di uno
spazzolino nello stesso bagno, ognuno dovrebbe avere il proprio supporto o uno
spazio separato. Altre raccomandazioni includono sciacquare bene lo spazzolino
con acqua corrente dopo ogni utilizzo, rimuovendo residui di dentifricio e detriti, e
cambiare lo spazzolino ogni tre mesi. Evitate di lasciare gli spazzolini esposti
direttamente su lavandini bagnati o vicino ai sanitari, per ridurre la contaminazione
da aerosol d'acqua.

05/04/2026

A clinical trial published in the European Heart Journal found that treating severe gum disease may do more than protect your teeth—it may help slow changes in blood vessels linked to heart attacks and strokes.

Researchers followed patients for 2 years and observed that intensive gum treatment reduced inflammation, limited bacteria entering the bloodstream, and slowed the thickening of the carotid arteries—the major vessels supplying blood to the brain. Even small reductions in this thickness are associated with meaningful improvements in cardiovascular risk.

This doesn’t mean dental treatment replaces heart care. But it highlights something critical:
your oral health is closely connected to your overall health.
Untreated gum disease may quietly contribute to long-term damage beyond the mouth.

This was a randomized clinical trial—one of the strongest forms of medical evidence.

📄 Source: Orlandi M, Masi S, Lucenteforte E, et al. Periodontitis treatment and progression of carotid intima–media thickness: a randomized trial. European Heart Journal. 2025.