fa Assessment of mineralization and developmental stage of homologues mandibular first and second molars using panoramic radiographs and Demirjian's method in 5 to 12 years old children عمومى General مقاله پژوهشي Research Article <span style="font-size:9pt"><span style="line-height:120%"><span sans-serif="" style="font-family:Arial,"><span style="color:#404040"><span dir="RTL" lang="AR-SA" style="font-size:11.0pt"><span style="line-height:120%"><span style="font-family:"Times New Roman","serif""></span></span></span></span></span></span></span><br> <span style="font-size:9pt"><span style="line-height:120%"><span sans-serif="" style="font-family:Arial,"><span style="color:#404040"><b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""><span style="color:#548dd4">Background:</span></span></span></span></b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""> Assessment of dental developmental stage is more valuable than tooth eruption because the duration of tooth eruption is short and is determined by the appearance of tooth in the oral cavity. Among the different methods that could be used to determine the developmental stage of teeth, the Demirjian&rsquo;s method has been extensively applied. </span></span></span></span></span></span></span><br> <span style="font-size:9pt"><span style="line-height:120%"><span sans-serif="" style="font-family:Arial,"><span style="color:#404040"><b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""><span style="color:#548dd4">Methods:</span></span></span></span></b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""> This retrospective study selected 300 panoramic radiographs of 5 to 12-year-old Iranians obtained from Radiology Department of Hormozgan University of Medical Sciences from 2019 to 2020. The developmental stage of homologous mandibular first and second molars teeth were scored based on Demirjian&rsquo;s stages. </span></span></span></span></span></span></span><br> <span style="font-size:9pt"><span style="line-height:120%"><span sans-serif="" style="font-family:Arial,"><span style="color:#404040"><b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""><span style="color:#548dd4">Results:</span></span></span></span></b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""> Significant difference was noted in developmental stage of first and second molars in right and left side among different age groups. According to the results, there was not a significant difference in developmental stage of first molars in right and left side between two genders while the difference in this regard between the mandibular right and left second molars between two genders was significant. Moreover, there was a significant difference in development of molars between four distributed age groups for each gender. </span></span></span></span></span></span></span><br> <span style="font-size:9pt"><span style="line-height:120%"><span sans-serif="" style="font-family:Arial,"><span style="color:#404040"><b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""><span style="color:#548dd4">Conclusion:</span></span></span></span></b><span style="font-size:11.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times=""> According to the findings of this study, evolution of mandibular first and second molar is not an appropriate indicator for gender segregation in children under 12 years old, but it can be used in ages estimation. Therefore, it can be concluded that gender is an impactful factor on the growth process of the second molar on the left and right in this age group. </span></span></span><span dir="RTL" lang="FA" style="font-size:11.0pt"><span style="line-height:120%"><span style="font-family:"Times New Roman","serif""></span></span></span></span></span></span></span><br> &nbsp; Mineralization, Homologous teeth, Demirjian’s Method, Panoramic Radiographs 55 76 http://jiapd.ir/browse.php?a_code=A-10-1-147&slc_lang=fa&sid=1 A Shamsi آریا شمسی 10031947532846002363 10031947532846002363 No S Esmaili سارا اسماعیلی 10031947532846002364 10031947532846002364 No G Haghi Ashtiani گلاره حقی آشتیانی 10031947532846002365 10031947532846002365 Yes N Mokhtari نسیم مختاری 10031947532846002366 10031947532846002366 No S Mahmudi سمیرا محمودی 10031947532846002367 10031947532846002367 No