TCDHA OROFACIAL FINAL EXAM QUESTIONS AND ANSWERS

TCDHA OROFACIAL FINAL EXAM QUESTIONS AND ANSWERS anomaly noticeably different/ not normal dental anomaly - deviations of dental tissue origin derived from enamel, dentin or cementum Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen intrinsic factor internal, coming from within the body examples of intrinsic factors - hereditary - metabolic dysfunction - mutations extrinsic factor external, from outside the body - ex. physical/chemical trauma, biologic agents, nutritional deficiencies, stress, habits, environmental conditions examples of extrinsic factors - physical/chemical trauma - biologic agents - nutritional deficiencies - stress, habits - environmental conditions congenital condition occurs at or before birth - if primary teeth are congenitally missing, their permanent will also be absent developmental anomaly condition results during formation and development of the teeth classification of dental anomalies variation in - SIZE (macrodontia, microdontia) - NUMBER of teeth (hyperdontia, anodontia) macrodontia teeth are too LARGE microdontia teeth are too SMALL hyperdontia MULTIPLE/EXTRA teeth - aka supernumerary (too much) supplemental tooth an extra tooth that resembles a regular tooth anodontia too FEW teeth the most common malformed anterior tooth is maxillary lateral incisor (peg shaped) supernumerary teeth are most commonly located - midline - max molar regions - followed by mand premolar region max supernumerary teeth outnumber mand 9 to 1 most common missing permanent teeth - max 3rd molars - max lateral incisors least likely permanent teeth to be missing canines mesiodens - supernumerary teeth in max midline - most common supernumeraries - peg shaped distomolars 4th molars paramolar a supernumerary tooth situated buccally or lingually to a molar - small & rudimentary conical cone shaped supernumerary