Evaluation of the space available for eruption of maxillary second and third molars after distalization of maxillary first molars
Journal Title: RSBO - Year 2010, Vol 7, Issue 3
Abstract
Objective: The objective of this study was to evaluate cephalometrically the space available for eruption of maxillary second and third molars in the region of the maxillary tuberosity after distalization of maxillary permanent first molars. Material and methods: The sample consisted of 38 right lateral cephalograms obtained from 19 Brazilian patients,of Caucasian and African descent, with average age of 9 years and 5 months. Cephalograms were taken before and after distalization of maxillary permanent first molars. The space from the end of the maxillary tuberosity to the distal aspect of the maxillary permanent first molar was evaluated. Student’s t test was applied for the statistical analysis, and the correlation between space and angulation was analyzed by the Pearson correlation coefficient. Results and conclusion: The corresponding space between the distal aspect of maxillary permanent first molars and the end of the maxillary tuberosity, before and after distalization, is not enough for eruption of the maxillary second and third molars. The crowns revealed distal angulation before and after distalization. The correlation of angulation of crowns of maxillary second and third molars and the space for eruption revealed that the greater the distal angulation of crowns, the smaller will be the space available for eruption.
Authors and Affiliations
Francisco Silva, Marco Scanavini
Two root canals in maxillary central incisor
Introduction and objective: The success of endodontic treatment requires the knowledge of tooth morphology and its variations. Case report: This clinical article reports an unusual root canal configuration that was detec...
Index of dental risk for pretransplant renal hemodialysis patients
Introduction: Patients with chronic renal failure (CRF) have low immunity due to the medicines they use, their clinical condition and the treatment itself. For this reason, any infection, including oral infections,...
Qualitative study of root canal shaping during ultrasonic instrumentation with different files
Introduction and objective: The proposal of this study was to verify the quality of ultrasonic instrumentation shaping influenced by different types of files – K, K-flex and nickel-titanium – and different tr...
Evaluated the incidence of dental fluoroses in school children the public net education in Joinville
This study evaluated the incidence of dental fluorosis in 640 six to twelve year-old schoolchildren of the public education net. The data allow the delimitation and establishment of community and individual fluorosis rat...
Assessment of maxillary and mandibular incisors inclination in individuals with class II division 1 malocclusion, according to the facial pattern
Introduction and objective: The aim of this study was to cephalometrically evaluate the maxillary and mandibular incisors inclination in individuals with Angle class II division 1 malocclusion,and then correlate these in...