HomeDentistry Developmental disorders in the oral mucosa.. White sponge nevus. Epidermal dyskeratosis within proper genetic These disorders include: * Fordyce granules Fordyce granules * White sponge nevus White spongy naevus * Bonn nodules Bohn's nodules. Facebook Twitter Share:Developmental disorders in the oral mucosa.. White sponge nevus. Epidermal dyskeratosis within proper genetic Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email