RESUMEN
The stage of Skeletal Maturation of an individual is essential for assessing the growth potential of an individual. This helps in formulating Diagnosis and Treatment Planning which may affect the final prognosis of the orthodontic treatment. The course of orthodontic treatment often depends upon the intensity of facial growth. Thus the knowledge of the timing of these growth velocity variations in craniofacial complex is important in clinical orthodontics. There are different methods of assessing skeletal maturity for orthodontic treatment purpose. The main source is Hand Wrist X-rays, Cephalograms and Radiographs for assessing the status of dental development. Review of Literature reveals a wide data on this aspect related to methods and the correlation between different methods. Most of them are academically oriented. The purpose of this article is to present a simplified method for clinical reference during treatment.
RESUMEN
Objective: The present study was to evaluate and compare anchorage loss in sagittal, vertical dimension in incisal, molar segments and distal tipping of upper canine after first phase of orthodontic mechanotherapy utilizing MBT and ROTH philosophies. Materials and Methods: Thirty patients with class I dentoalveolar malocclusion requiring extraction of all first premolars were randomly assigned into group I and group II. Set of two lateral cephalograms (T1) and (T2) were obtained with appliance in place and after sufficient leveling and aligning respectively. Linear measurements were recorded on the tracings using Pancherz analysis. A Wilcoxon t-test was use to assess the linear changes. Results: In group I sample, upper and lower incisors retroclined during T1 - T2; by mean (SD) value of 2.267 (1.0032) mm, 2.4 (0.98) mm, respectively. Group II sample showed upper incisor proclination by -0.4 (1.404) and lower incisal retroclination by 0.06 (1.48). Upper and lower molars in group I remained stationary and group II upper and lower molars moved mesially by -1.133 (0.351) and -0.002 (0.005). In group I, upper and lower incisors extruded by -0.867 (0.611) and -0.67 (0.703), respectively, and group II the upper and lower incisors extruded by -0.9 (0.507) and -0.133 (0.639). Upper canine tipped distally during T1 - T2 in group I by -0.33° (2.609) and group II there was a change in distal tip of upper canine by -3° (3.184). Conclusion: Results from this random clinical trial showed that MBT technique effectively addressed perceived inadequacies of ROTH philosophy.