| Diagnosis | Clinical features | Radiographic features | Histological features |
| Hereditary Hypophosphataemic Rickets (HHR) | Recurrent spontaneous dental abscesses, spontaneous loss of vitality, sinus tracts, eruption anomalies, defective dentine mineralisation, yellow-to-brown enamel hypoplasia, increased periodontal disease, malocclusion | Root resorption, pulp horns extending to enamel–dentine junction (EDJ), taurodontism, poorly defined lamina dura, hypoplastic alveolar ridge | Tubular dentinal clefts, increased and hypomineralised interglobular dentine, reduced secondary dentine, widened predentine, microclefts in enamel surface |
| Raine Syndrome (RS) | Hypoplastic amelogenesis imperfecta (AI), delayed dental eruption, high-vaulted palate, cleft palate, malocclusion, gingival enlargement, thin, yellow, and translucent enamel, incisal notch of central incisors | Ectopic eruption, pulpal calcifications, root hypoplasia, periapical pathology, lack of differentiation between enamel and dentine | Gingival or follicular calcifications, increased interglobular dentine, thin enamel |
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