TY - JOUR AU - Tanzin Palkit AU - Isha Aggarwal AU - Yagyeshwar Malhotra AU - Mandeep Uppal AU - Merry Goyal AU - Neetika Singh PY - 2020/10/20 Y2 - 2024/03/29 TI - The Relationship Between Maxillary and Mandibular Base Lengths and Dental Crowding in Patients with True Class II Malocclusions JF - International Healthcare Research Journal JA - IHRJ VL - 4 IS - 7 SE - Original Research(s) DO - 10.26440/IHRJ/0407.10280 UR - https://ihrjournal.com/ihrj/article/view/280 AB - INTRODUCTION: Orthodontists, for a long time have considered that occlusion and facial beauty are so interdependent that they must be equal goals of treatment.AIM: To validate the relationship between maxillary and mandibular effective lengths and dental crowding in patients with Class II malocclusions. MATERIALS AND METHOD: A sample of 40 orthodontic patients with complete bilateral Class II malocclusions in the permanent dentition (25 males, 15 females) who were divided into two groups based on severity of pre-treatment mandibular anterior dental crowding. The maxillary and mandibular effective lengths and tooth-arch size discrepancies were measured on the pre-treatment Lateral cephalograms and initial casts, respectively. Intergroup comparisons of apical base lengths were assessed with independent t-tests. Correlation between effective length and dental crowding was assessed by Pearson's correlation coefficient (P <.05).RESULTS: Subjects with Class II malocclusion and moderate to severe crowding had significantly smaller maxillary and mandibular effective lengths compared with subjects without crowding and with minimal dental crowding. A weak inverse correlation was also found between maxillary and mandibular effective lengths and the severity of dental crowding. CONCLUSION: In patients with complete Class II malocclusion, decreased maxillary and mandibular effective lengths constitute a significant factor associated with dental crowding. ER -