First permanent molar root development arrest associated with compound odontoma

Abstract

Trauma or infection to the primary tooth may have deleterious effects on the underlying developing tooth buds. Anatomically the root apices of primary teeth are in close proximity to the developing permanent tooth buds; hence spread of infection originating from pulp necrosis of primary tooth may not only affect the underlying tooth bud but may also affect the adjacent tooth buds. The extent of malformation depends on the developmental stage of tooth or the age of patient. Presented here is a rare case of complete arrest of maxillary first permanent molar root growth due to spread of periapical infection originating from second primary molar leading to failure of its eruption and finally extraction. Histopathlogical analysis revealed compound odontoma associated with maxillary first permanent molar.

Retention of upper first molar caused by complex odontoma. A case report

“…The etiology of the odontoma is not well defined, but it has been attributed to various pathological conditions, such as trauma, infections, hereditary anomalies (Gardner syndrome, Herman syndrome and basal cell nevus syndrome), odontoblastic hyperactivity and alterations in the genetic components responsible for the control of dental development. 1,3,6 A case of multiple complex odontomas associated with Otodental Syndrome, an autosomal dominant disease characterized by globodontia and high-frequency hearing loss, was recently published. 9 Odontomas act similar to impacted teeth and, therefore, often cause alterations in tooth eruption (impaction or delayed eruption, retention of primary teeth and anomalies in tooth position, tilt or displacement of adjacent teeth).…”

“…4,5 Histologically, the World Health Organization (WHO) differentiates between compound odontoma and complex odontoma. [1][2][3]6,7 The compound type is approximately twice as common as the complex type. 1 -Complex odontomas: They form amorphous and disordered masses of odontogenic tissue that appear most frequently in the lateral region of the jaw.…”

“…4,8 Radiologically, odontomas appear as a well-defined radiopacity with a radiolucent halo. 1,6,8 Complex odontomas present as non-specific, disorganized, irregular, unique or multiple radiopacities, which may be similar to osteolysis. 3 On the other hand, compound odontomas have an irregular radiopacity that corresponds to the denticles.…”

Compound odontoma associated to permanent teeth impaction in jaw

“…The etiology of odontoma is still discussed. Some predisposing factors have been suggested to explain its origin, such as the trauma of the tooth germ during development 6 , inflammatory and infectious processes and hereditary abnormalities (Gardner syndrome and Hermann syndrome) 7 .…”