Primary and secondary impaction of four primary molar teeth in a single patient Retención primaria y secundaria de los cuatro primeros molares en un paciente

• Main Authors: Bruno Ramos Chrcanovic (Author), Ana Cristina Rodrigues Antunes Souza (Author), Ricardo Mascarenhas Paixão (Author), Leandro Napier Souza (Author)
• Format: Book
• Published: Editorial Ciencias Médicas, 2010-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

The lack of eruption of a primary tooth can be considered rare. In primary impaction, the primary tooth not only has never appeared in the oral cavity, but also is always covered by a more or less thick layer of bone. Secondary impaction, which is relatively more common, denotes teeth that at one ti...