Prevalence of anterior open bite in patients reporting for orthodontic treatment

The objective of the present study was to determine the prevalence of anterior open bite in orthodontic patients. 100 sets of pretreatment study casts of patients reporting to the Orthodontics Department Faculty of Dentistry, The University of Lahore, Lahore Pakistan were selected. SPSS [10.0] was used to analyze the data. Five patients [5%] had anterior open bite. Of these five patients, three patients [60%] had anterior open bite of less than 1mm, while two patients [40%] had anterior open bite of between 1.1 - 2mm. Male to female ratio of patients having anterior open bite was 1:4

cephalometric evaluation of the crib therapy on mixed dentition open bite cases

In this study the effects of crib therapy in the treatment of openbite cases were investigated. The extrusion of lower and upper incisors and the intrusion of lower first molars were the most significant effects of the appliance. These findings were evaluated as a result of posterior tongue posture. The lower facial height decreased. Thus the clock wise pattern of mandibular complex was changed into counter clock wise pattern