NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Oral Health in America: Advances and Challenges [Internet]. Bethesda (MD): National Institute of Dental and Craniofacial Research(US); 2021 Dec.
Figure 7Tooth cracks and fractures
Notes: Examples of typical cracks and fractures affecting teeth.
(A) Small visible fracture lines in coronal area only (Craze lines) in central incisor.
(B) Small crack extending from the occlusal (chewing) surface of a premolar but not extending beyond the cemento-enamel junction (CEJ) into the tooth root.
(C) Cracked tooth extending from the occlusal surface of a molar into the tooth root without separation of tooth fragments.
(D) Large tooth fracture in a molar extending from the occlusal surface though the tooth root resulting in separation between the tooth fragments.
(E) Vertical tooth root fracture involving a single molar tooth root.
(F) Cracked molar cusp resulting in a portion of the enamel separating from the remaining coronal portion of the tooth.
(G) Injury to a central incisor resulting in fracture and loss of a portion of the remaning tooth.
Source: Created by Jonathan Dimes for this NIH Report.
- Figure 7, Tooth cracks and fractures - Oral Health in AmericaFigure 7, Tooth cracks and fractures - Oral Health in America
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