Cracked tooth syndrome involves a partial fracture of the tooth that extends into the dentin and sometimes the pulp, leading to bacterial ingress and inflammation. This results in pulpal irritation and pulpitis, causing pain often triggered by biting or temperature changes. Unlike fluorosis, hypercementosis, or amelogenesis imperfecta, which primarily affect tooth structure or appearance, cracked tooth syndrome directly compromises pulp integrity. Early diagnosis and management are crucial to prevent progression to irreversible pulpitis or necrosis.

Reference: Oral Pathology, Neville et al., 4th Edition.