TY - JOUR ID - TI - RAMUS HEIGHT AND ITS RELATIONSHIP WITH SKELETAL AND DENTAL MEASUREMENTS AU - Yassir A. Yassir PY - 2013 VL - 1 IS - 1 SP - 1 EP - 5 JO - Journal of Oral and Dental Research مجلة طب الفم والاسنان SN - 23106417 AB - Background: The purpose of this study was to assess mandibular ramus height and to assess the relationship of ramus heightwith various craniofacial and dental measurements in a sample of Iraqi adults with skeletal and dental Class I.Materials and method: The sample consisted of 95 Iraqi adults (54 females and 41 males) having normal occlusion andClass I skeletal pattern aged between 18 and 31 years. Each individual was subjected to clinical examination and digital truelateral cephalometric radiography. The radiographs were analyzed using AutoCAD 2007 software computer program to de- termine ten linear and seven angular measurements. Descriptive statistics were obtained and independent samples t-test wasperformed to evaluate the gender differences, while Pearson’s correlation coefficient test was used to identify correlationsbetween ramus height and other measurements.Results: All linear measurements were significantly higher in males, while angular measurements showed non-significantdifferences between males and females, except for SN-MP, SN-PP, and N-S-Ar angles which were significantly higher in fe- males than in males. For both genders, there were significant positive correlations between ramus height and posterior facialheight, maxillary and mandibular molar dentoalveolar heights, while there were significant negative correlations with SN-MP,PP-MP, and Ar-Go-Me angles. Ramus height in females showed a significant positive correlation with N-S-Ar angle, and asignificant negative correlation with S-Ar-Go angle.Conclusions: Ramus height was directly correlated with intermaxillary space in the posterior region, and inversely correlatedwith angles of mandibular rotation.

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