%0 Journal Article
%T Influence of intentional ankylosis of deciduous canines to reinforce the anchorage for maxillary protraction
%A Lu¨ªs Fernando Castaldi Tocci
%A Omar Gabriel da Silva Filho
%A Ac¨¢cio Fuziy
%A Jos¨¦ Roberto Pereira Lauris
%J Dental Press Journal of Orthodontics
%D 2013
%I Dental Press Editora
%X INTRODUCTION: This retrospective cephalometric study analyzed the influence of intentional ankylosis of deciduous canines in patients with Class III malocclusion and anterior crossbite, in the deciduous and early mixed dentition stages, treated by orthopedic maxillary expansion followed by maxillary protraction. METHODS: Lateral cephalograms of 40 patients were used, divided in 2 groups paired for age and gender. The Ankylosis Group was composed of 20 patients (10 boys and 10 girls) treated with induced ankylosis and presenting initial and final mean ages of 7 years 4 months and 8 years 3 months, respectively, with a mean period of maxillary protraction of 11 months. The Control Group comprised 20 patients (10 boys and 10 girls) treated without induced ankylosis, with initial and final mean ages of 7 years 8 months and 8 years 7 months, respectively, with a mean period of maxillary protraction of 11 months. Two-way analysis of variance and covariance analysis were applied to compare the initial and final cephalometric variables and the treatment changes between groups. RESULTS: According to the results, the variables evidencing the significant treatment changes between groups confirmed that the intentional ankylosis enhanced the sagittal response of the apical bases (Pg-NPerp) and increased the facial convexity angles (NAP and ANB). CONCLUSIONS: The protocol involving intentional ankylosis of deciduous canines enhanced the sagittal response of the apical bases. INTRODU  O: nesse estudo cefalom¨¦trico retrospectivo, analisou-se a influ¨ºncia da anquilose intencional de caninos dec¨ªduos em pacientes com m¨¢ oclus o de Classe III e mordida cruzada anterior, nos est¨¢gios de denti  o dec¨ªdua e mista precoce, tratados com expans o ortop¨¦dica da maxila, seguida de tra  o reversa. M¨¦TODOS: foram utilizadas telerradiografias em norma lateral de 40 pacientes, divididos em 2 grupos pareados por idade e sexo. O Grupo Anquilose foi constitu¨ªdo de 20 pacientes (10 meninos e 10 meninas) tratados com anquilose induzida e que apresentavam as idades m¨¦dias inicial e final, respectivamente, de 7a 4m e 8a 3m, e o tempo m¨¦dio de tra  o reversa de 11 meses. O Grupo Controle, composto de 20 pacientes (10 meninos e 10 meninas) tratados sem anquilose induzida e que apresentavam as idades m¨¦dias inicial de 7a 8m e final de 8a 7m, e tempo m¨¦dio de tra  o reversa de 11 meses. Foram empregadas as an¨¢lises de Variancia a dois crit¨¦rios e de Covariancia para comparar as vari¨¢veis cefalom¨¦tricas inicial e final e as altera  es de tratamento entre os grupos. RESULTADOS: segundo os resulta
%K M¨¢ oclus o
%K Classe III de Angle
%K Mordida cruzada
%K Ortodontia interceptora
%K Malocclusion
%K Angle Class III
%K Crossbite
%K Interceptive orthodontics
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512013000100020