Sir, allow me to applaud the cogent appeal for a biologically-based approach to treatment of orofacial masticatory disorders in your opinion piece.1 The diminished need for 'drilling, filling and billing' is indeed driving the dental profession into new areas counteracting the effects of ageing, hence 'Botox' treatments of facial creasing.

Your plea for increased undergraduate exposure to biology in the dental curriculum can be met by exploring the embryogenesis of the craniofacial complex in a newly published textbook: Craniofacial embryogenetics and development, 3rd edition, published by PMPHUSA (https://pmphusa.com/).