Artículos de revistas
Crown dilaceration in permanent teeth after trauma to the primary predecessors: report of three cases
Fecha
2012Registro en:
Braz. Dent. J.,v.23,n.5,p.591-596,2012
0103-6440
10.1590/S0103-64402012000500021
Autor
Mellara, Talitha de Siqueira
Nelson-Filho, Paulo
Queiroz, Alexandra Mussolino de
Santamaria Júnior, Milton
Silva, Raquel Assed Bezerra da
Silva, Lea Assed Bezerra da
Institución
Resumen
Crown dilaceration of permanent teeth occurs due to the non-axial displacement of the already formed hard tissue portion of the developing crown at an angle to their longitudinal axis due to trauma to the primary predecessors. This is a rare condition, representing only 3% of the total of injuries to developing teeth and usually occurs in permanent maxillary incisors because of the close proximity of their tooth germs to the primary incisors, which are more susceptible to trauma. This alteration frequently results from the intrusion of a primary tooth when the child is around 2 years of age, at which time half of the crown of the permanent successor is already formed. Teeth with dilacerated crowns may either erupt with buccal or lingual displacement or remain impacted. The treatment may involve endodontic, orthodontic, restorative and prosthetic procedures. This paper reports the restorative treatment proposed to reestablish the esthetics and function of the affected teeth in three cases of crown dilaceration in permanent maxillary incisors after trauma to their primary predecessors.