periodontitis
noun
peri·odon·ti·tis
ˌper-ē-(ˌ)ō-ˌdän-ˈtī-təs 
: inflammation of the supporting structures of the teeth and especially the periodontal membrane
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This may protect against tooth decay and periodontitis (gum disease), but more research is needed to know for sure.5 More robust research is needed to confirm these benefits.
—
Cynthia Sass, Health, 19 Sep. 2025
In one study, the severity of gingivitis (an early stage of gum disease) or early periodontitis improved with a supplement containing 195 mg of mangosteen extract and propolis.
—Amy Brownstein, Verywell Health, 7 Aug. 2025
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Cynthia Sass, Health, 19 Sep. 2025
In one study, the severity of gingivitis (an early stage of gum disease) or early periodontitis improved with a supplement containing 195 mg of mangosteen extract and propolis.
—Amy Brownstein, Verywell Health, 7 Aug. 2025
See All Example Sentences for periodontitis
Cite this Entry
“Periodontitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periodontitis. Accessed 31 Oct. 2025.
Copy CitationMedical Definition
periodontitis
noun
peri·odon·ti·tis
ˌper-ē-(ˌ)ō-ˌdän-ˈtīt-əs
: inflammation of the periodontium and especially chronic inflammation that typically follows untreated gingivitis and that results in progressive destruction of the periodontal ligament, formation of pockets around the teeth, and resorption of alveolar bone chiefly in a horizontal direction with loosening or loss of teeth
called also pericementitis
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