Gingival Pigmentation Affected by Smoking among Different Age Groups: A Quantitative Analysis of Gingival Pigmentation Using Clinical Oral Photographs.

Int J Environ Res Public Health · 2017 · PMC5580584 · PMID 28777322

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a decreasing trendno p-value reported

The GMR was the highest among patients in their 30s with a decreasing trend after the 40s.

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