L. 'ouranite-tabagique, Notre étude a montré que 9% des lésions totales étaient des ouranites tabagiques. L'ouranite tabagique a été mise en lien avec la consommation de tabac et d'alcool+tabac dans l'étude de Pentenero et al, Elle est relativement présente dans 8 études, p.2932344147, 2008.

J. Junior, 24) ont trouvé une prévalence de chéilite angulaire (perlèche) de 9,3%, résultat équivalent à celui de Parlak et al, 38) à 9%. Trois études notent la faible prévalence de chéilite angulaire, p.34, 1991.

. Cependant, il faut être prudent car le terme « leucoplasie » a beaucoup évolué et doit être utilisé avec précaution et être évité à l'heure actuelle (51) ce qui peut expliquer la différence de notre étude avec celles plus anciennes. Les glossites Deux pour cent des lésions totales que nous avons observées étaient des glossites (langue scrotale, langue géographique et glossite rhomboïde médiane)

L. 'erythroleucoplasie-un-seul-cas, 22) ont évalué la prévalence à 0.05%, ce qui est en accord avec notre résultat. Les localisations Concernant les localisations, les plus fréquentes sont la lèvre inférieure, la face dorsale de la langue (15%), le palais (dur et mou) (14%), les joues (13%), les gencives maxillaire et mandibulaire (12%), la lèvre supérieure (9%), le bord et la pointe de la langue (8%). Viennent ensuite dans des proportions bien plus faibles, le vestibule maxillaire et mandibulaire (3%), les commissures labiales (2%), la face ventrale de la langue (1%) et le plancher buccal (1%) (Diagramme 2), 2004.

. Shulman, ont trouvé que les localisations les plus fréquentes étaient : le vestibule, (mais leur échantillon contenait plus de consommateurs de tabac non fumé que le notre), le palais, la muqueuse, les gencives, la langue, les lèvres, les commissures puis le plancher buccal. Chandroth et al (2014)(33) ont relevé les localisations suivantes dans l'ordre décroissante de fréquences : lèvres, bord vermillon, commissures, muqueuse buccale, plancher buccal, 2004.

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