I’ve looked at dental and gum health as well as this seems to be an issue quite a few are dealing with.
That includes myself.
This is a theory.
(1) Retinoic acid acts as an anti-inflammatory and an anti-chronic inflammatory. The inflammation caused by gingivitis and periodontoclasia in general, has been found to be reduced after application of retinoic acid. It is believed that retinoic acid inhibits macrophage migration into granulomas.
(2) Retinoic acid inhibits the production of collagenase by macrophages. The bacteria present in plaque, dental granuloma and dissecting pockets of fluid in the interstices between the tooth and gum present in more advanced stages of periodontoclasia, also produce collagenase, which destroys the matrix of the teeth and surrounding tissues and ligaments. Retinoic acid interrupts this collagenase activity, preventing the destruction of collagen.
(3) Retinoic acid increases the proliferative activity of the epidermal cells of the periodontium. This increased activity results in a thickening of the periodontal tissues and possibly a thickening of the other mucoidal tissues of the oral cavity. Such stimulation of periodontium growth is believed to result in faster wound healing and response to infection. Moreover, it is believed that retinoic acid increases the metabolism of fibroblasts. Fibroblasts synthesize the fibers of the periodontal tissues by producing collagen and by differentiating into collagenoblasts and osteoblasts. This increased metabolism helps to rejuvenate and repair damaged periostium.
(4) Retinoic acid stimulates blood flow and promotes the formation of vascular tissues (angiogenesis) as well as lymphatic tissues and cells. As a result, there is a greater capacity for the surrounding periodontal tissues to be nourished; cell mediated immune responses occur more readily; and toxins and irritants may be carried away more quickly.
No other pharmaceutical agent has these multiple effects, all of which are beneficial to retard and reverse periodontoclasia and gingivitis.