Timms, D J An histological investigation into the effects of rapid maxillary expansion on the teeth and their supporting tissues. [electronic resource] - Transactions. European Orthodontic Society 1971 - 263-71 p. digital Publication Type: Journal Article Subjects--Topical Terms: Dental Pulp Calcification--etiologyDentin, Secondary--etiologyPalatal Expansion Technique--adverse effectsRoot Resorption--etiology