Upper molar intrusion in rehabilitation patients with the aid of microscrews.
BACKGROUND
Overeruption of an upper molar following loss of the opposing tooth is a common clinical finding. Rehabilitation can be difficult when the interocclusal space is reduced.


OBJECTIVE
To intrude an overerupted upper first molar and replace the missing lower first molar.


METHODS
Buccal and palatal microscrews and a transpalatal bar were placed. The palatal miniscrew loosened shortly after implantation and was not replaced. A short length of elastomeric chain from the buccal miniscrew applied 30 g of force to the overerupted molar. The elastomeric chain was replaced every four weeks.


RESULTS
Sufficient intrusion of the upper molar was obtained in 4 months.


CONCLUSIONS
A single buccal microscrew and transpalatal arch can be used to intrude an overerupted upper molar.
Melo
Ana Cláudia Moreira
AC
Department of Orthodontics, Latin American Institute of Dentistry Research and Education, Curitiba, PR, Brazil. amelo@ilapeo.com.br
Jawonski
Mario Eduardo
ME
Largura
Lucila Zimmermann
LZ
Thomé
Geninho
G
de Souza
José Renato
JR
da Silva
Marcos André Duarte
MA
D001863:Bone Screws; D003758:Dental Implantation, Endosseous; D003799:Dental Stress Analysis; D005260:Female; D006801:Humans; D008875:Middle Aged; D008904:Miniaturization; D008963:Molar / Q000503:physiopathology; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D009967:Orthodontic Appliances; D014078:Tooth Eruption; D014087:Tooth Movement Techniques / Q000379:methods*