Open Bite Treatment and Its Assessment Using the Dawjee Analysis

Anterior open bite (AOB) is a dentofacial problem occurring more commonly in race groups of African origin. Although multi-factorial, the aetiology exerts its influence in tandem with craniofacial development. Diagnoses is confirmed by a cephalometric assessment and points either to a skeletal origin, a dental cause or both. Depending on the time of diagnosis and severity of the condition, treatment can vary from interceptive procedures, orthodontics only, or a combination of orthodontic treatment and orthognathic surgery. Objectives: The aim of this study is to introduce and apply the newly designed Dawjee analysis as a cephalometric tool in evaluating the management of a patient with AOB. Methods: An adult patient with AOB was treated non-surgically. The diagnosis, treatment technique and outcome are described, as well as a pre and post treatment evaluation of the cephalograms using the newly introduced Dawjee analysis. Landmarks, planes and measurements used in this new method of cephalometric analysis are defined and the technique is outlined. Results: Comparison of pre and post treatment cephalometric values not only confirms a definite dentofacial improvement, but also identifies specific morphologic areas that have changed as a result of treatment. Transformations in anteroposterior maxillary and mandibular positions and orientation are readily detectable, as well as a repositioning of the alveolar processes. The cephalometric values presented here are case specific and cannot be implemented widely unless the analysis is applied to a larger and more representative population sample. Conclusions: By determining mandibular and maxillary positions and alveolar location in the vertical plane, the Dawjee analysis is a simple cephalometric tool that can be used to diagnose the morphological source of craniofacial discrepancies. Research is currently in progress to develop standardised values for the Dawjee analysis, which can have extended applications and assist in comparative craniofacial studies.